Ngk Heat Range 6




Here is an example if you have a question about the heat range on an NGK spark plug. Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA. We have the best prices on dirt bike, atv and motorcycle parts, apparel and accessories and offer excellent customer service. For example, take the 254x plug series. So you're saying the the NGK heat range 7 is 2 ranges colder than stock, so stock is heat range 5?. Spark plugs may physically appear to be the same but have a different heat range based on the insulator design or shape. With the current tune on the Sonata, NGK 1422 (2 step colder) @ 0. due to differences in design and materials the spark plugs of various manufacturers do not have exactly the same heat range. Sunday, I swapped out the NGK TR55 spark plugs with one heat range colder NGK TR6 plugs in a stock bottom end LS1 C5 Corvette with ported heads, cam, intake, headers, etc, which makes 430whp & 400wtq and has a 10. 4mm Electrode: copper core centre Ground electrode (tip) length: 5. It is a stock plug for 1995 Audi S4 (turbo) and 1995 Volvo T5-R (turbo), and hence proven for turbo applications. Autolite has 2544, 2545 and 2546 available. By contrast, Champion, Bosch, BRISK, Beru, and ACDelco use a heat range system in which the numbers become bigger as the plugs get hotter. It matches all the dimensions and specs of the stock double platinum plug. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. In reply to # 1763272 by clshore Plugs are designed to control the center electrode and insulator temperature by conducting more or less heat through to the outer case. 6 NGK 4177 TR6 Projected 1 step colder w/ projected tip. NGK Iridium/Platinum Heat Range 6 Spark Plug (IZFR6K-11) NGK Laser Iridium Spark Plug. COVID-19 Update: We're still open for business with altered operations. First, consult the NGK numbering system page,(listed on the bottom left of the 411 info page), you should be able to see which digits identify the heat range for your spark plug. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. Designed to operate over a much wider heat range than ordinary plugs Resists carbon buildup and pre-ignition High alumina ceramics for better heat transfer and electrical insulation Solid copper core and nickel tipped electrode provide a. NGK Spark Plugs are designed for improved ignitability and throttle response. For dyno testing, 92 octane pump gas was used with #2 heat range Autolite AR72 Racing Plugs gapped at. We also have the plug with Heat Range 7 (BKR7E) for those running forced induction up to 250HP available in our store. They come set up for high boost applications. NGK Standard Types Spark Plugs BP10EV Design Symbols used in NGK Spark Plugs B - Thread Size / Hex Size: 14 mm / 13/16" (20. (Example- -6 is a hotter plug than -9) Spark plug gap for Points is. Typically the heat range for NGK Spark Plugs varies from 2-11. HEAT RANGE AND INTENDED USE. I've been running that. Acdelco mr43t (5613438) marine spark plugs (lot of 8) brand new in packages(US $8. com specializes in hard to find NGK products. 5 R This set of 4 NGK Racing Competition plugs are a competition replacement for the standard Golf 'R' Mk7, Leon Mk3 Cupra, TT-S Mk3 and S3 8V Spark Plugs. Spark plugs are an essential part to keep your car running. I've had good experience (other than longevity) with the NGK vPower BRK7E and I just finished my first full day with the NGK BRK8E plugs. Louis in a couple of weeks. NGK Copper Spark Plugs / Heat Range 7 NGK V-Power Spark Plugs provide economical performance and improved ignitability over standard NGK Spark Plugs original equipment manufacturer and racer approved. Jūsu grozs pagaidām ir tukšs!. 0 turbo engines from 2007 onwards, these use a longer spark plug. Spark plug manufacturers use different numbers to denote heat range of their spark plugs. NGK's IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast. com specializes in hard to find NGK products. NGK is the most sold spark plug brand globally and in Finland. Spark plugs are an essential part to keep your car running. We specialize in: performance parts, replacement parts, OEM parts, tools, kits and more. Heat Range the ZFR5F-11 is Heat Range 5 and he ZFR6F-11 is Heat Range 6 so by NGK standards the ZFR6F-11 is a Colder Plug then the ZFR5F-11. NGK N4177 Spark Plug, GM 602 Racing Crate Engine, Cool Heat Range made by NGK, for as low as $3. Find Spark Plugs 6 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! Part Number: NGK-4177. A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. So going from a 5 to a 6 heat range (colder) is a good move for increased boost. In reality, most “racing” spark plugs are just colder heat ranges of the street versions of the spark plug. NGK Laser Iridium Stock Heat Range Spark Plug Set - 2015. I pulled these plugs, they were fouled badly after 3 hours run time, put TR6's in and she's a champ again. Cross Reference Persamaan Panas Busi NGK Denso Champion Bosch Brisk Heat Range Kode Panas Busi. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Pinthong's engine was slightly modified and included a four-into-one header and 2. ngk heat range cross reference. I recited a heat range that's hotter than normal for a modified 911. Best choice for complete combustion and avoid cylinder misfires. NGK suggests these plugs be used for slightly modified or mild boost applications. For example, a 10 heat range in NGK is not the same as a 10 heat range in Champion nor the same in. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Featuring a0. Pinthong's engine was slightly modified and included a four-into-one header and 2. Spark Plug Heat Range Cross Reference. The last digit in an Autolite part number represents the heat range within a plug family. Here's my review. m7a a-6 m7ac a-7 m8a a-6 m8ac a-6 m8ao a-6 m10a a-6 m10ao a-6 m10ac a-6 m10aco a-6 m12b ap5fs ur2as cr8hs ur3as cr7hs ur4as cr6hs wo6as b10hv w06cs b11egv w07as b10hv w07cs b10egv w08as b9hv w08cs b10egv w2a b9hs w2ac b9hs w2as b9hv w2c b10es w2cc b10es wr4ac br8hs wr7cc br6es wr7ccx br6es-11 wr7cp br6es wr7cpx br6es-11 wr7d bpr6es wr7dc bpr6es. NGK B7ES Langfaden für Vespa (entspricht Bosch W5CC). NGK Nickel Heat Range 6 Spark Plug LFR6C-11. An example of an NGK racing plug is R5671A-11. Projected Insulator: The projected insulator offers many advantages for better performance. Mazda Rx7 Break-In. Hope this helps. NGK Iridium Heat Range 6 Spark Plug (LFR6AIX-11) - ngk6619-1. Best choice for complete combustion and avoid cylinder misfires. 9604 (equivalent to NGK heat range 6-7) FR7NII33X. 75 reach, 5/8 hex, resistor, and a non-projected tip. NGK Iridium IX Spark Plugs Nissan 240SX KA24DE Turbo Heat Range 7 - 4pc SKU. Buy NGK Iridium IX Spark Plugs - #7 Heat Range NGK-6988 at King Motorsports Unlimited, Inc. I run the NGK TR6 spark plugs in all of my LS engines. The heat range measurement is determined by several factors; the length of the ceramic centre insulator nose and its’ ability to absorb and transfer combustion heat, the material composition of the insulator and centre electrode material. This number indicates the thermal characteristics of a spark plug, or how 'hot' Several factors influence the heat range of a spark plug, although typically the insulator nose design provides an indication of the heat range of a spark plug. some reason NGK numbers their heat ranges backwards. Recommended Plugs in this Heat Range: - NGK BKR6E (Copper) - NGK BKR6EIX (Iridium Version of the same plug above) - Denso K20R (Copper) - Denso IK20 (Iridium Version of the same plug above). or a non protruding plug equivalent in heat range to an autolite 3924 Anyone have a link to a good NGK heat range chart that contains the 5820 if I’m correct that the 5820 is “stock”. NGK plugs are colder the higher the number, hotter the lower the number. NGK Spark Plugs (Heat Range 6) - RB20 RB25 RB26   Six NGK spark plugs for your RB series motor. Perrin Cold Air Intake FR-S/BRZ. We specialize in: performance parts, replacement parts, OEM parts, tools, kits and more. 82 A/r Turbo. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type. Jūsu grozs pagaidām ir tukšs!. So for the person who wants something a little hotter than a BP6ES, but not as hot as a BP5ES, one would think the natural step would be to a Champion N10YC. 1mm (projected insulator) Resistor: non-resistor plug. Half heat range: LM: Compact lawn mower type: M: 2 ground electrode for Mazda rotary engine: N: Special ground electrode: P: Platinum tip (premium) Q: 4 ground electrodes: R: Delta ground electrode for BMW: S: Standard 2. Johnny Haywire, I didn't mean to say that a simple plug heat range change or using 87 vs 91 gas is the cure-all. NGK Standard spark plugs feature a 5-Rib insulator design to prevent flashover and are also treated with corrosion-resistant plating to ensure ease of installation and removal. It can operate over a wider heat range than regular plugs. NGK R7436 Racing Spark Plugs have been designed to offer the highest level of performance even in the most harsh conditions. For example, BCPR6ES-11 has a heat range of 6. 080" were used, HP and TQ levels remained unchanged, but the engine starts faster, had better throttle response and a smoother idle with reduced exhaust emissions. Can anyone confirm these are the correct fit plugs for the 6. NGK Iridium Spark Plugs Key Features: Iridium conducts electricity better than platinum, and is 6 times harder and 8 times stronger than platinum. Spark Plug NGK BR8EIX Iridium Race Plug. Ngk heat range index keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. 5 (NGK) Champion 13 RS14YC6 Projected Stock Heat Range. Injector Dynamics ID2000 2200cc Injectors-48mm Length $ 960. They also have the NGK (6510) LTR7IX-11, which is one step colder. 5mm x hex 16. 74 replacement spark plugs for NGK DCPR8E. NGK IX Iridium Heat Range 9 Spark Plug. NGK numbers increase for cold heat range plugs and decrease for hotter plugs. The higher the number the colder the Plug. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. NGK makes plugs for almost every application and riding style Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot Feature high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for. NGK B7ES Langfaden für Vespa (entspricht Bosch W5CC). BPR6ES NGK spark plug for Honda engines and other small engines. NGK Spark Plugs TR6IX - NGK Iridium IX Spark Plugs. LKAR6AHX 26. List member George Roffe provided a set of new NGK Platinum spark plugs, while Pinthong contributed a set of used Bosch Platinum plugs with approximately 15,000 miles on them. Half heat range: LM: Compact lawn mower type: M: 2 ground electrode for Mazda rotary engine: N: Special ground electrode: P: Platinum tip (premium) Q: 4 ground electrodes: R: Delta ground electrode for BMW: S: Standard 2. 9604 (equivalent to NGK heat range 6-7) FR7NII33X. 1:09 9 heat range vs a 6 heat range, what is the difference? 1:50 How does a colder plug hel. If your are looking to increase the power of your car, your may need to get some spark plugs that run a. It is recommended that your replace your spark plugs every 20,000 to 40,000 miles. And as an added bonus the Iridium IX plug features Trivalent Metal Plating for it's superior anti-corrosion and anti-seizing properties. The advanced design of Iridium IX Spark Plugs features a 0. The heat rating is a measure of the amount of heat dissipation. Thats a great question. Jūsu grozs pagaidām ir tukšs!. NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Posted: Fri Sep 21, 2018 10:55 am Post subject: Re: ngk 7 spark plug heat range Heat range should have zero effect on cold starts, idle speed and low load conditions. The Plugs are available in the 6 or 7 Heat range. SKF is a 6009-2RS1 thousands of references of rooms and car accessories on sale on our site. What is the NGK plug is one heat range colder then the TR6? I'd definitely suggest a 7 series NGK (TR7IX if you want an Iridium), or a Denso IT22 series. Features & Benefits: Trapezoidal ground electrode allows for higher ignitability and reduces quenching. In reply to # 1763272 by clshore Plugs are designed to control the center electrode and insulator temperature by conducting more or less heat through to the outer case. 750 Reach, 5/8 Hex, 57 Heat Range. NGK V-Power Spark Plug Heat Range 6 03-04 Cobra; 07-14 GT500. Brand: NGK Heat Range: 6 Longevity: 100k Miles. I'm just used to heat range 6 plugs in N/A V6's. Other heat range plugs from NGK have been excellent also. Comment Report abuse. Fits Ford 2011-2017 Mustang and 2012-2013 Boss Mustangs. as far as I know HKS and NGK are the same spark plug, HKS just relabels them and the heat range will have to do with the power you want to make the more power, the colder the plug, in canada the heat range starts a 9 I believe and goes down ( being the colder plug) in the UK it might be different. NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. A "stock heat range" plug would be a 5 or 6 (higher is hotter). NGK Spark Plugs TR6IX - NGK Iridium IX Spark Plugs. Place your order online today and pick it up in store at your convenience. A large range of intake filters and complete intake systems are. When the AC R46SZ plugs, gapped at. NGK V-Power Spark Plug Heat Range 6 (BKR6E) $ 1. Posted December 31, 2020. 314 replacement spark plugs for NGK BPR6ES. For Nissan SKYLINE (TUNED) NGK IRIDIUM IX SPARK PLUGS x 6 (Heat Range 8) AU $122. In reply to # 1763272 by clshore Plugs are designed to control the center electrode and insulator temperature by conducting more or less heat through to the outer case. The Nismo Iridium Spark Plugs, made by NGK improved ignition and spark performance for a more complete combustion and greater power. Модель автомобиля: MITSUBISHI OUTLANDER (МИЦУБИШИ АУТЛЕНДЕР). These are a 2-step colder (same heat range as oem B48/58) spark plug for the N54 and identical heat range on the N55 to the OEM plugs. NGK Spark Plug (DIFR6D13), Oxygen Sensor (OZA714-HG9) and Knock Sensor (KNE37) have been selected for the fitment in Honda City 1. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Is it worth forking out the extra dollars for the NGK Iridium spark plugs or stick with the normals? Also, what heat range should be used? The standard heatrange is 9 on the recomended NGKs (normal CR9EH-9 and Iridiums are CR9EHIX-9), but Ive read that when the resistor mod has been done (removin. These 1 Heat Range Lower plugs and feature a traditional style end for easy gapping. Higher number indicate hot plug (for example 5 or 4) and low Spark plug heat range is the measure of how fast the spark plug tip dissipates combustion heat. Intended for racing use only. Like the title says, I‘m looking for an NGK plug in a 6 heat range, 14 mm,. Compared with conventional plugs of the same pre-ignition rating they have more resistance to fouling. NGK Spark Plugs (U. 74 replacement spark plugs for NGK DCPR8E. 1 step colder: NGK – R7437-8 Denso – IKH24. NGK's heat range numbering system is reverse of what one would think, so just be aware that 5 is hotter than 6. It is recommended that your replace your spark plugs every 20,000 to 40,000 miles. NGK Racing R6725 Spark Plugs have been designed to offer the highest level of performance even in the most harsh conditions. 0T Vehicles. NGK 7090 BKR5EGP G-Power Spark Plug, Pack of 4 G-Power Platinum Alloy Spark Plugs offer superior performance with improved fuel efficiency, lower emissions, and quicker starts 0. The 41-122 are the NGK 7 heat range OEM plugs. NGK Laser Iridium Stock Heat Range Spark Plug Set - 2015+ WRX / Forester XT 2014-2016; next. This is 1 step colder spark plug for your turbocharged or supercharged Jeep Wrangler 3. NGK Ruthenium HX Spark Plug LTR6BHX Stock Heat Range Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007 | Ford Focus ST 2013-2018 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best). Disclaimer © 2002-2021 JNPSoft Corporation. Ngk Heat Range; Best Ngk Heat Range Online. Product # {{ productPartNumber }} $ 45 00. Fits Ford 2011-2017 Mustang and 2012-2013 Boss Mustangs. The heat range must be carefully selected for proper spark plug thermal performance. The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or whether it provides resistance to heating up (cold). Choose two ranges colder for 2. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. Joined Nov 11, 2019 · 5 Posts. Spark Plug Heat Range - NGK Spark Plugs - Tech Video. I recited a heat range that's hotter than normal for a modified 911. Aluminum: 7. NGK –6 or –7 = 500-700hp engines with 11 to. Iridium plugs should not be regapped. It is recommended that your replace your spark plugs every 20,000 to 40,000 miles. Price: Negotiable Minimum Order Quantity: 5000pcs Brand Name: Torch Delivery Time: 30 working days. If your are looking to increase the power of your car, your may need to get some spark plugs that run a. Thanks, Joe. This NGK spark plug is an upgrade for N54 engines running higher boost. NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. This is the factory heat range plug for VR6. The NGK Racing plugs arrived today. GG-1i (Iridium) Pulse Plugs GG-1i (2pcs/pack) - Thread : 12mm (5/8" Hex) - Reach : 26. Jump to Latest Follow 1 - 6 of 6 Posts. For NGK Racing Plugs, the heat range is located AFTER the hyphen. 8mm / car : 0. Accel Spark Plug Heat Range Chart. Each spark plug is sold separately. Subaru WRX 02-05 NGK Iridium IX Spark Plugs EJ205; OEM Heat-Range Number; Gap. NGK 709 Spark Plug - BR8HS-10, 25 Pack. Heat Range Chart Published In: Technical Information Cold Hot. Some manufacturers, such as Denso and NGK, have numbers that become higher as they get colder. And as an added bonus the Iridium IX plug features Trivalent Metal Plating for it's superior anti-corrosion and anti-seizing properties. Order ships free when this item is included and exceeds $99. acdelco 41 162 heat range, In my view, AC Delco as muddied the waters on this a bit. The colder heat range will lower combustion chamber temperatures and resist knocking and eliminate misfires. The Plugs are available in the 6 or 7 Heat range. The higher the number the colder the Plug. 6 ounces Product Dimensions 3. So 'hotter' or 'cooler' heat range plugs refer to this property. It's what we use in our street and race cars, including our endurance racers. NGK TR55-IX Iridium Spark Plugs, Stock heat range, gapped at. Spark Plug, Racing, Tapered Seat, 14mm Thread, 25mm Reach, Heat Range 9, With Resistor, Each. 9651 (equivalent to NGK heat range 5) FR7LII33X. msrp: $116. 0T Vehicles. 04") - Seat : Flat - Applications : Nissan, Toyota - Years : 2005-2011. However, from your list of mods I'd be concerned about what is causing this meltdown from just higher than normal interstate cruising speeds. The Idea of Half Heat Range is simple. Featuring a0. 2544 is the coldest plug in that plug family, and 2546 is the hotest. NGK V-Power -7 heat range gapped at. Spark Plug Heat Range - What does it mean? NGK 6 vs 9 - Duration: 2:04. NGK Standard spark plugs are OE approved and recommended for reliable performance for most automotive and non-automotive applications. LKAR6AHX 26. Why NGK Iridium? More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion. Typically the heat range for NGK Spark Plugs varies from 2-11. 035" PN: 4177. Ngk iridium ix spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs-and just thin enough to create an accurate and consistent spark. Details about NGK Iridium Heat Range 6 Spark Plug (LFR6AIX-11) - ngk6619-1. Autolite has 2544, 2545 and 2546 available. 0 turbo engines from 2007 onwards, these use a longer spark plug. NGK spark plug 10mm thread rally/race heat range: Ford BDG NGKC8E No Tax, Each £3. LTR6BHX 25 mm x 0. Spark Plug, Iridium IX, Tapered Seat, 14mm Thread,. NGK Standard plugs are an OE cornerstone that have provided decades of reliable performance; Solid Copper Core offers superior heat dissipation, conductivity and broad heat range; Small engine spark plug gap (in): 0. It must do this in a precise and controlled manner so the. 04") - Seat : Flat - Applications : Nissan, Toyota - Years : 2005-2011. NGK spark plug 10mm thread rally/race heat range: Ford BDG NGKC8E No Tax, Each £3. NGK Spark Plugs are designed to operate over a much wider heat range than ordinary plugs. Extended Gap. Heat Range (6) is Stock heat range, NGK's heat range is reversed (higher is colder). NGK G-Power® platinum spark plugs feature a single platinum tip, 98% pure copper core and a. 5L (BS- 6) engine model launched in December'19. Well, below you will find a “heat range cross reference chart” that shows comparisons between 5 major brands of spark plugs. Here's my review. NGK V-Power Heat Range 5. 38 Taxed, Each £4. This is one hot little palette. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. 035" PN: 4177. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type. 00 at SMY Performance. This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. They feature a copper core, triple seals, and a special insulator for superb heat extraction. NGK Spark Plugs (U. Add to Cart. These NGK spark plugs are the plugs needed when going to higher boost levels. 0 out of 5. NGK R35 NGK Heat Range 9 Spark Plug (R2558E-9) Sale price $ 40. how does the Accel heat range work? Bigger number = hotter? NGK is higher number = colder. The heat rating of NGK spark plugs is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type. Will not fit 2. 0R2JU Part No. With over 80 years of automotive expertise NGK has built a reputation for quality and reliability; manufacturing spark plugs for. com/subscription_center?add_user=StreetandCircuit0:08 What does cold & hot mean?0:23 When do you need a colder spark plug?1:09. NGK IX Iridium Spark Plug 7164 TR55IX 6 pack. Aluminum: 18-21. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. For example, take the 254x plug series. Injector Dynamics ID2000 2200cc Injectors-48mm Length $ 960. Posted: Fri Sep 21, 2018 10:55 am Post subject: Re: ngk 7 spark plug heat range Heat range should have zero effect on cold starts, idle speed and low load conditions. When the AC R46SZ plugs, gapped at. Naked Petite Heat is a compact eyeshadow palette featuring six all-new. It is a stock plug for 1995 Audi S4 (turbo) and 1995 Volvo T5-R (turbo), and hence proven for turbo applications. AC Delco MR43T AC SPARK PLUG, : Shop and save at ohcanadasupply. com 2544 is the coldest plug in that plug family, and 2546 is the hotest. Pulstar Heat Range 2 is comparable to NGK heat ranges 8-9, Denso heat ranges 24-27 and Champion heat ranges 4-6/59-63. 38 Taxed, Each £4. Copper cored electrodes also mean that longer insulator noses can be used to protect against fouling. Choose stock heat range for cars with stock pulleys down to 3. The Plugs are available in the 6 or 7 Heat range. Recommended if your stock plugs have over 30,000 miles. So you're saying the the NGK heat range 7 is 2 ranges colder than stock, so stock is heat range 5?. Most applications have multiple heat ranges available. Spark Plug Heat Range - What does it mean? NGK 6 vs 9. NGK's heat range numbering system is reverse of what one would think, so just be aware that 5 is hotter than 6. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. NGK IX Iridium Heat Range 5 Spark Plug TR5IX ngk7397. They resist carbon buildup and pre-ignition. Injector Dynamics ID2000 2200cc Injectors-48mm Length $ 960. Each spark plug is sold separately. The Idea of Half Heat Range is simple. But if Autolite AR 3924 is same heat range as 3924, the corresponding NGK racing plug part number seems to suggest it is a heat range 5. 7mm Gap 2 Heat Range Fit NGK BR2-LM. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. This number indicates the thermal characteristics of a spark plug, or how 'hot' Several factors influence the heat range of a spark plug, although typically the insulator nose design provides an indication of the heat range of a spark plug. Ruthenium Spark Plug, 6 Heat Range - NGK, NGKLKAR6AHX Part# NGKLKAR6AHX : NGK ~ $15. The Plugs are available in the 6, 7 or 8 Heat range. 3L, Set Part Number: NGK-8028 Designed and manufactured in our ISO 17025 accredited lab, NGK ignition coils are engineered to OE durability and performance. They also operate over a wide heat range which suits them to high-performance environments. Find NGK Spark Plugs R5671A-7 NGK Racing Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! What's firing your engine? NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engines. NGK Copper Spark Plugs / Heat Range 7 NGK V-Power Spark Plugs provide economical performance and improved ignitability over standard NGK Spark Plugs original equipment manufacturer and racer approved. Recommended if your stock plugs have over 30,000 miles. Agent (56). ngk heat range on 150 shot. Iridium plugs should not be regapped. LTR6BHX 25 mm x 0. The tip is too delicate for the gap to be changed. Half heat range: LM: Compact lawn mower type: M: 2 ground electrode for Mazda rotary engine: N: Special ground electrode: P: Platinum tip (premium) Q: 4 ground electrodes: R: Delta ground electrode for BMW: S: Standard 2. We are not NGK Spark Plugs USA. The Fine Iridium tip ensures high durability and a consistently stable spark. These NGK V-Power spark plugs offer economical performance for nearly any automotive application and are the only plugs with NGK's V-Groove technology. Choose stock heat range for cars with stock pulleys down to 3. NGK R5673-6 Stock Number 2405 (1 heat range hotter) NGK R5673-7 Stock Number 2817 (Factory heat range) Naturally Aspirated (non-projected tip) Specifications: Thread Size= 14mm Hex Size=. They enhance …. NGK Laser Platinum Heat Range 6 Spark Plug (BKR6EP-11) NGK Laser Platinum Spark Plug. To be clear, for the LS7, LS9, and LSA engines the factory plug is GM# 12571165 or AC Delco PN 41-104 This plug has an equivalent NGK heat range of 6 So TR6, TR6GP, and TR6IX is just the factory replacement heat range. These are a 2-step colder (same heat range as oem B48/58) spark plug for the N54 and identical heat range on the N55 to the OEM plugs. Ngk Heat Range 6. 9% € 6,59 Alle Preisangaben inkl. 5 (NGK) AC Delco R42CLTS6 R42CLTS6 Projected Stock Heat Range. The optimal firing end temperature is approximately between 500°C (932°F) and 800°C (1472°F). This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. NGK spark plugs come stock on many chainsaw brands, including Husqvarna, Jonsered and Stihl chainsaws, and are considered a high quality replacement spark plug. Best choice for complete combustion and avoid cylinder misfires. Notes: Platinum Plus - Production: 08/1973-11/1974, NGK BP6ES - Normal Heat Range. It should be noted if you're trying to find a particular plug (cross referencing) to a different brand, NGK uses a reverse heat range number than most any other brand (autolite, ND, bosch, AC delco, champion) NGK heat ranges drop as the plug gets "hotter". The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of high performance environments. OEM heat range 6 NA6 (90-93) OEM heat range 5 NA8, NB1, NB2, NB2 Turbo (94-05) Recommendations: Street and autocross use, normally aspirated - OEM heat range. GG-1i (Iridium) Pulse Plugs GG-1i (2pcs/pack) - Thread : 12mm (5/8" Hex) - Reach : 26. SO its not a good idea to just think all spark plug makers use the same numbers for hotter or colder plugs. 7mm Gap 2 Heat Range Fit NGK BR2-LM. Products to Compare (max of 3). Heat Range Chart Published In: Technical Information Cold Hot. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. Evo 10: Stock heat range: NGK – ILKR8E6 – OEM. Great replacement to help remove additional heat from the combustion chamber. Compared with conventional plugs of the same pre-ignition. The Plugs are available in the 6, 7 or 8 Heat range. due to differences in design and materials the spark plugs of various manufacturers do not have exactly the same heat range. Part Number: NGK-93400 Not Yet Reviewed. What does the heat range really mean on your spark plug? We have the answers on our training resource page. 6 mm iridium center electrode tip, they offer superior ignitability without sacrificing durability. For Spark plugs to work efficiently, the firing end must be kept within a certain temperature range. LKAR6AHX 26. That is two more incremental heat ranges that Champion offers. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. com 2544 is the coldest plug in that plug family, and 2546 is the hotest. Extended Gap. Features & Benefits: Trapezoidal ground electrode allows for higher ignitability and reduces quenching. Shorty Spark Plug: No. I currently run an NGK fr5 plug on the motor, and they’re borderline cold n/a. Heat Range 6, 14mmx1. 0mm resistor type spark gap - motorcycle : 0. Perrin Cold Air Intake FR. These NGK V-Power spark plugs offer economical performance for nearly any automotive application and are the only plugs with NGK's V-Groove technology. For choosing the correct heat range: Nissan OEM PFR6B-11B "6" Heat Range should be used for stock turbos up to 15 Lbs of boost. This means the spark plug will heat up easily and reach its optimal operating temperature. 750 Reach, 5/8 Hex, 57 Heat Range. The last digit in an Autolite part number represents the heat range within a plug family. However, the Bosch rating system is the opposite of NGK’s in that a low number represents a colder plug (2 is the coolest) and a higher number a hotter. Less than $10 (138) $10-$20 (71). 5 heat range. I currently run an NGK fr5 plug on the motor, and they’re borderline cold n/a. 1 hemi, Build info in sig. Heat Range 6, 14mmx1. Looking at the stock plugs (Denso FXE24HR11), they are a "24" heat range (equivalent to an NGK "8" heat range). Spark Plug heat range. What's Included (1) Spark plug, Model# NGK#BPR6ES. Easy returns. They resist carbon buildup and pre-ignition. This set of eight (8) One Heat Range Cooler NGK Iridium IX Performance Spark Plugs are specifically designed as an upgrade for nitrous or force inducted 2011-2017 GT and 2012-2013 BOSS Mustangs equipped with the 4 valve 5. Vor 11 years. NGK standard plugs are constructed for longer life and optimum performance. BC-E (old JIS) - Heat Range 10. Business Type. The heat rating of NGK spark plugs is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of high performance environments. Condition. Spark Plug. NGK Nickel Heat Range 6 Spark Plug LFR6C-11. Recommended Plugs in this Heat Range: - NGK BKR6E (Copper) - NGK BKR6EIX (Iridium Version of the same plug above) - Denso K20R (Copper) - Denso IK20 (Iridium Version of the same plug above). and has a thermo-edge design for central electrode. Part # ILKR8E6-GRP $ 63. The aforementioned and linked ac delco page clearly lists the 2014 SS as 41-110 being replaced by 41-162. dalam badan keramik si busi biasanya ada kode khusus yang menunjukan rentang panas busi tersebut, masuk busi panas atau dingin, misalkan busi BRISK Silver dibawah ini tertulis GOR14S maka kode 14 artinya panas busi ini ( heat Range ) di angka 14, masuk dingin , adem, atau anget nih hehehe. These are a 2-step colder (same heat range as oem B48/58) spark plug for the N54 and identical heat range on the N55 to the OEM plugs. 000 other spark plugs. This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. ngk heat range chart; December 31, 2020 Comments are off. due to differences in design and materials the spark plugs of various manufacturers do not have exactly the same heat range. Recently Viewed. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Whether the plug is to be installed in a boat, lawnmower or racecar, it has been found the optimum combustion chamber temperature for gasoline engines is between 500°C–850°C. Drive Tune Media 17,460 views. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. NGK Spark Plugs (U. NGK plugs are colder the higher the number, hotter the lower the number. Rules for selecting the correct plug are to follow manufacturer’s specifications. Buy direct with global shipping to your door from Osaka, Japan. EXAMPLE: The heat range for a BCPR6ES-11 is the "6" (ignore the -11, it is the gap). It is a stock plug for 1995 Audi S4 (turbo) and 1995 Volvo T5-R (turbo), and hence proven for turbo applications. NGK Spark Plugs are designed to operate over NGK Spark Plugs are designed to operate over a much wider heat range than ordinary plugs. a long life. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of high performance environments. What is the NGK plug is one heat range colder then the TR6? I'd definitely suggest a 7 series NGK (TR7IX if you want an Iridium), or a Denso IT22 series. Injector Dynamics ID2000 2200cc Injectors-48mm Length $ 960. Keep your marine vehicles up to snuff with this NGK BUHW-2 Spark Plug. 5L (BS- 6) engine model launched in December'19. 99 NGK TR6 Spark Plugs, One heat range colder than stock, gapped at. and has a thermo-edge design for central electrode. Heat Range 6; Torque Specs Cast Iron: 7. Spark Plug Heat Range Cross Reference. We also have the plug with Heat Range 7 (BKR7E) for those running forced induction up to 250HP available in our store. Shop for NGK V-Power Nickel Plug Number ZFR6F-11 Spark Plug Part #: 4291 for your vehicle. The Plugs are available in the 6, 7 or 8 Heat range. NGK IX Iridium Heat Range 9 Spark Plug. Less than $10 (138) $10-$20 (71). Autolite's numbering system does not have a standardized heat range identifier. NGK has three different heat range seven plugs. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. For example, R6120-85 has a 8. com/subscription_center?add_user=StreetandCircuit0:08 What does cold & hot mean?0:23 When do you need a colder spark plug?1:09. Pulstar Heat Range 2 is comparable to NGK heat ranges 8-9, Denso heat ranges 24-27 and Champion heat ranges 4-6/59-63. Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA. All rights reserved. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Atp For Mitsubishi Evo 6. Why NGK Iridium? More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion. *Universal product, may require modification to fit your car. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. Heat range is the speed at which a spark plug can transfer heat from the firing tip to the cylinder head water jacket and into the cooling system. 035" PN: 4177. NGK Laser Iridium Spark Plugs provide superior ignitability and long service life. NGK –6 or –7 = 500-700hp engines with 11 to. Solid Copper Core provides superior heat dissipation, conductivity and a broader heat range. That is the minimum and maximum temperatures between which the plug will offer optimum performance. If your are looking to increase the power of your car, your may need to get some spark plugs that run a step cooler than. Application. For example, take the 254x plug series. Can anyone confirm these are the correct fit plugs for the 6. NGK spark plugs use a heat range index ranging from 2 to 12 with 2 being the hottest spark plug and 12 being the coldest. V55C V57C V59C V63C V63C RV8C. They both have a 1. They also operate over a wide heat range which suits them to high-performance environments. Spark Plug Heat Range Cross Reference. January 31, 2017 ·. ngk heat range cross reference. , the second field) are optional, and some fields may have multiple letters. Posted: Fri Sep 21, 2018 10:55 am Post subject: Re: ngk 7 spark plug heat range Heat range should have zero effect on cold starts, idle speed and low load conditions. Other factors effecting Heat Range are the For NGK Racing Plugs, the heat range is located AFTER the hyphen. All rights reserved. NGK Model 7534 Item Weight 1. Spark Plug Autolite Xtreme Sport XS4063 4 Pack NGK 8 Heat Range. The heat range is determined by how long it takes a spark plug to transfer heat to the cylinder head. Plugs with high heat ranges do not indicate higher speeds. The Nismo Iridium Spark Plugs NGK Long-Reach Type are required for high-output, high-rev sports car engines, the spark plug is able to withstand the loads generated by such high power, and guarantees reliable ignition. SKF is a 6009-2RS1 thousands of references of rooms and car accessories on sale on our site. It must do this in a precise and controlled manner so the. 080" were used, HP and TQ levels remained unchanged, but the engine starts faster, had better throttle response and a smoother idle with reduced exhaust emissions. For example, take the 254x plug series. 10 Autolite Spark Plug Heat Range Chart Cover Letter. NGK Laser Iridium Stock Heat Range Spark Plug Set - 2015. Each features high alumina ceramics for better heat transfer and electrical insulation. Fast shipping and great service! Heat Range: 6: Hex Size: 5/8" (16mm. Тип иридиевой свечи: ОРИГИНАЛЬНЫЕ ИРИДИЕВЫЕ СВЕЧИ для GF2W. Joined: Mar 27, 2010 Location. 1 Review | Add Your Review $ 71. Manufacturer Heat Range: 6. •Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark •Iridium Read More "NGK Racing Spark Plug – Gen3. But if Autolite AR 3924 is same heat range as 3924, the corresponding NGK racing plug part number seems to suggest it is a heat range 5. They enhance …. 9604 (equivalent to NGK heat range 6-7) FR7NII33X. NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Projected Insulator: The projected insulator offers many advantages for better performance. Ngk heat range index keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. He removed the air filter during the test period. A typical plug used would have a designation of: B-8ES. So for the person who wants something a little hotter than a BP6ES, but not as hot as a BP5ES, one would think the natural step would be to a Champion N10YC. NGK IX Iridium Heat Range 9 Spark Plug. Today's efficient engine designs create more power while using less fuel and this has shortened the life of traditional Iridium and Platinum spark plugs. Staged 70 · Registered. This set of eight (8) Two Heat Range Cooler NGK Iridium IX Performance Spark Plugs are specifically designed for the 2003-2004 SVT Cobra and 2007-2014 Shelby GT500 Mustangs that are running more. Aluminum: 7. Jūsu grozs pagaidām ir tukšs!. Features Lowers ignition system voltage requirements Greater ignitability and performance over conventional spark plugs. NGK Ruthenium Spark Plugs for Mazdaspeed 3, Mazdaspeed 6, and Ford Focus ST models. NGK V-Power Heat Range 5. NGK R7436 Racing Spark Plugs have been designed to offer the highest level of performance even in the most harsh conditions. NGK IX Iridium Heat Range 9 Spark Plug. 1 step colder: NGK – R7437-8 Denso – IKH24. They resist carbon buildup and pre-ignition. NGK Spark Plugs is the world’s leading manufacturer of spark plugs, glow plugs, and lambda sensors, and supplies a vast range of products from the field of ignition and sensor technology. Ngk Usa Stock Numbers Part Number: 93476 Manufacturer Part Number: 93476 Description: Spark Plug Long Description: NGK Laser Iridium Spark Plug Part Type: Spark Plug Category: Ignition Subcategory: Hardware Fasteners And Fittings Sales Rank: Technical Details Condition: New Product Fit: Direct Fit. due to differences in design and materials the spark plugs of various manufacturers do not have exactly the same heat range. Less than $10 (138) $10-$20 (71). Condition. See details and exclusions - NGK Laser Platinum Heat Range 6 Spark Plugs Fits: Subaru Impreza Turbo 92-07. AC Delco MR43T AC SPARK PLUG, : Shop and save at ohcanadasupply. NGK Standard Plug, NG7512. ngk spark plugs n54. Typically the heat range for NGK Spark Plugs varies from 2-11. Heat Range Spark plugs are designed to work with the insulator tip and center electrode temperature within the ideal heat range of about 500ºC to about 850ºC NGK BCPR6ES-11 B 14-mm thread C 5/8" hex shell P JIS Projected insulator nose R Resistor type 6 Heat range (6 is medium, 5 is hotter, 7. Also you need smaller electrodes for higher voltage spark and more ‘space’ for flame spread. NGK R35 NGK Heat Range 9 Spark Plug (R2558E-9) Sale price $ 40. Autolite's numbering system does not have a standardized heat range identifier. Items 1-20 of 377. ngk r5724 8 heat range. how does the Accel heat range work? Bigger number = hotter? NGK is higher number = colder. NGK Iridium Heat Range 6 Spark Plug (LFR6AIX-11) $ 6. ngk heat range on 150 shot. 96024 - NGK Iridium Spark Plugs Stock Heat Range (ILKAR8H6) Shop By Car. Spark Plug Heat Range Explained by NGK Spark Plugs USA. Then, it's transferred to the coolant. NGK Iridium Spark Plugs Stock Heat Range 1422 Mitsubishi Evo X 2008-2015 +2. NGK Iridium Spark Plug Heat Range 9 - R7437-9 - 16280 - Braking - NGK - USP Motorsports is a leader in auto parts for Volkswagen, BMW, Audi & Porsche. NGK Laser Iridium Spark Plugs provide superior ignitability and long service life. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. Iridium power. NGK IX Iridium. com specializes in hard to find NGK products. The heat range of NGK Spark Plugs is wider than ordinary plugs therefore they are suitable for both high speed and low speed driving. NGK Süüteküünal 4323. 04") - Seat : Flat - Applications : Nissan, Toyota - Years : 2005-2011. The last digit in an Autolite part number represents the heat range within a plug family. NGK B7ES Langfaden für Vespa (Temperaturgrad entspricht Bosch W5CC) Produktcode: 11502 Maßeinheit: PZ. Typically the heat range for NGK Spark Plugs varies from 2-11. These spark plugs use very precious Iridium metal at the tip of center electrode of diameter 0. 00 Quantity. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. NGK Spark Plugs (U. NGK Copper Core Spark Plug - Heat Range 9 The best plugs for imports running any type of forced induction have always been NGK Copper Spark Plugs. com specializes in hard to find NGK products. Vor 11 years. 5",,,Halfway to being a "9". Autolite has 2544, 2545 and 2546 available. NGK Iridium/Platinum Heat Range 6 Spark Plug (IZFR6K-11) NGK Laser Iridium Spark Plug. I recited a heat range that's hotter than normal for a modified 911. For choosing the correct heat range: Nissan OEM PFR6B-11B "6" Heat Range should be used for stock turbos up to 15 Lbs of boost. Fits Model: Replaces OEM: NGK : BPR6ES Your Price: $2. NGK Standard Plug, NG7512. NGK Iridium Spark Plug Heat Range 9 - R7437-9 - 16280 - Braking - NGK - USP Motorsports is a leader in auto parts for Volkswagen, BMW, Audi & Porsche. some reason NGK numbers their heat ranges backwards. Also you need smaller electrodes for higher voltage spark and more ‘space’ for flame spread. Is it worth forking out the extra dollars for the NGK Iridium spark plugs or stick with the normals? Also, what heat range should be used? The standard heatrange is 9 on the recomended NGKs (normal CR9EH-9 and Iridiums are CR9EHIX-9), but Ive read that when the resistor mod has been done (removin. Staged 70 · Registered. NGK Iridium Heat Range 6 Spark Plug (LFR6AIX-11) $ 6. NGK standard plugs are constructed for longer life and optimum performance. They resist carbon buildup and pre-ignition. Standard heat range Plugs are recommended for ALL Street Driven Turbo MINIs with all levels of modification. 53 Nice Autolite Heat Range Chart Home Furniture. NGK Standard spark plugs feature a 5-Rib insulator design to prevent flashover and are also treated with corrosion-resistant plating to ensure ease of installation and removal. From my research, the NGK (6509) LTR6IX-11 is a suitable replacement for the 6. Shorty Spark Plug: No. 5-inch custom mandrel-bent exhaust. The last digit in an Autolite part number represents the heat range within a plug family. The heat range of a spark plug is the range in which the plug works well thermally. That is two more incremental heat ranges that Champion offers. NGK Racing x4 Angled Ground Strap Spark Plug Heat Range "9" VW Golf Mk7 / 7. NGK IX Iridium Spark Plug 7164 TR55IX 6 pack. NGK spark plugs are great for high performance applications. Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA. Jump to Latest Follow 1 - 6 of 6 Posts. 9% € 6,59 Alle Preisangaben inkl. They feature a copper core, triple seals, and a special insulator for superb heat extraction. NGK Iridium Spark Plugs Stock Heat Range - WRX 2002-2005 / Saab 9-2X 2005. "8" Heat Range: For those who race at high boost levels and any upgraded turbochargers. This is 1 step colder spark plug for your turbocharged or supercharged Jeep Wrangler 3. 07 shipping. 5 (NGK) Denso 5325 IT-16 Projected Sotck Heat Range. 82 A/r Turbo. Preis: € 7,00 Discount 5. See details and exclusions - NGK Laser Platinum Heat Range 6 Spark Plugs Fits: Subaru Impreza Turbo 92-07. Spark plugs are an essential part to keep your car running. This plug resists the buildup and carbon and pre-ignition, keeping it working for a longer time. Iridium tip is six (6) times OE engineered for specific vehicle applications. Описание детали: Свеча зажигания. Discussion Starter • #1 • Jan 13. NGK Iridium Spark Plugs For Stock to High Output Applications at RPM Outlet. BRISK USA SPARK PLUG CATALOG Feel free to download this catalog for any information reference of Brisk Spark Plugs. NGK Nickel Heat Range 5 Spark Plug LZFR5C-11. Condition. How to Change Spark Plugs (NGK Iridium) | AnthonyJ350 - Duration: 2:58. 5 heat range and R6120-105 has a 10. Тип иридиевой свечи: ОРИГИНАЛЬНЫЕ ИРИДИЕВЫЕ СВЕЧИ для GF2W. Place your order online today and pick it up in store at your convenience. The NGK Racing plugs arrived today. The NGK Power Cables for Honda vehicles feature a 0. The last digit in an Autolite part number represents the heat range within a plug family. NGK IX Iridium Heat Range 5 Spark Plug TR5IX ngk7397. We also have the plug with Heat Range 7 (BKR7E) for those running forced induction up to 250HP available in our store. Half heat range: LM: Compact lawn mower type: M: 2 ground electrode for Mazda rotary engine: N: Special ground electrode: P: Platinum tip (premium) Q: 4 ground electrodes: R: Delta ground electrode for BMW: S: Standard 2. a long life. An important note, just make sure they're gapped correctly before install to avoid any spark blowout. Aluminum: 18-21. For example, a 10 heat range in NGK is not the same as a 10 heat range in Champion nor the same in. NGK Iridium Heat Range 6 Spark Plug (LFR6AIX-11) $ 6. Heat Range Reference. The sparkplugs used in the older Honda motorcycles were made by the NGK company of Japan. List member George Roffe provided a set of new NGK Platinum spark plugs, while Pinthong contributed a set of used Bosch Platinum plugs with approximately 15,000 miles on them. For dyno testing, 92 octane pump gas was used with #2 heat range Autolite AR72 Racing Plugs gapped at. NGK V-Power Spark Plug Heat Range 6 03-04 Cobra; 07-14 GT500. NGK Spark Plugs is the world’s leading manufacturer of spark plugs, glow plugs, and lambda sensors, and supplies a vast range of products from the field of ignition and sensor technology. So going from a 5 to a 6 heat range (colder) is a good move for increased boost. *Universal product, may require modification to fit your car. ngk heat range cross reference. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974.