Too much Advertising, Not enough Tech - Spark Plug Reference
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Too much Advertising, Not enough Tech - Spark Plug Reference
Thought we would contribute our detailed spark plug reference to the site. We spent a lot of time putting this together, hopefully it'll aide you guys in your spark plug selection. Its not going to tell you what to choose, but rather part numbers for what you can run and equivalent of NGK plugs. We made this awhile ago but didn't post it since we found our last one on other peoples sites. But we figured it would be really useful to you guys.
It was tough to format it for this site, so just let me know if you have any questions about this, plug selection or anything else in general.
Gasket Seat - .708 - .75" reach - 14mm thread dia. - 5/8 hex
Fittment - LSx & LTx w/ gasket seat plugs
Non-Projected tip "gasket seat" plugs that are in bold are highly recommended for nitrous applications!
#Heat Range [Brand] [Part Number] [Design Number] [Tip Designation] [Special Notes]
#5 [NGK] [7373] [FR5] [Projected Stock Heat Range.]
#5 [NGK] [6130] [BCPR5ES] [Projected Stock Heat Range.] [Tighter Gap.]
#5 [NGK] [BKR5EIX-11] [Projected Stock Heat Range.] [Extended Gap.] [IRIDIUM]
#5 [Denso] [3137] [Q16PR-U] [Projected Stock Heat Range.]
#5 [Denso] [5305] [IK-16] [Projected Stock Heat Range.] [IRIDIUM.]
#5 [Champion] [431] [RC14YC] [Projected Stock Heat Range.]
#5 [Autolite] [5503] [5503] [Projected Stock Heat Range.]
#6 [NGK] [2330] [BCPR6ES] [Projected] [1 step colder w/ projected tip.]
#6 [NGK] [6418] [BKR6EIX] [Projected] [1 step colder w/ projected tip. IRIDIUM.]
#6 [Denso] [3007] [Q20PR-U] [Projected] 1 step colder w/ projected tip.]
#6 [Denso] [5304] [IK-20] [Projected] [1 step colder w/ projected tip. IRIDIUM.]
#6 [Champion] [344] [RC9YC] [Projected] [1 step colder w/ projected tip.]
#7 [NGK] [4091] [R5671A-7] [Non-Projected] [2 steps colder w/ NON-projected tip. Non-Resisted.]
#7 [Denso] [3010] [Q22PR-U] [Projected] [2 steps colder w/ projected tip.]
#7 [Denso] [5310] [IK-22] [Projected] [2 steps colder w/ projected tip. IRIDIUM.]
#7 [Champion] [284] [S65YC] [Projected][/b] [2 steps colder w/ projected tip. Non-Resisted.]
#7 [Autolite] [3922] [3922] [Projected] [2 steps colder w/ projected tip.]
#7 [Autolite] [AR3935] [AR3935] [Non-Projected] [2 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [NGK] [4554] [R5671A-8] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [Denso] [5311] [IK-24] [Projected] [3 steps colder w/ projected tip. IRIDIUM.]
#8 [Champion] [796] [C63YC] [Projected] [3 steps colder w/ projected tip. [Non-Resisted.]
#8 [Champion] [279] [C63Y] [Projected] [3 steps colder w/ projected tip. Non-Resisted. Cut back electrode.]
#8 [Champion] [298] [C63CX] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#8 [Autolite] [AR3934] [AR3934] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [Brisk] [D12S] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#9 [NGK] [5238] [R5671A-9] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Denso] [5312] [IK-27] [Projected] [4 steps colder w/ projected tip. IRIDIUM.]
#9 [Champion] [794] [C61YC] [Projected] [4 steps colder w/ projected tip. Non-Resisted.]
#9 [Champion] [785] [C61C] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Champion] [278] [C61Y] [Projected] [4 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#9 [Champion] [688] [C61] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#9 [Champion] [297] [C61CX] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.] [Cut back electrode.]
#9 [Autolite] [AR3933] [AR3933] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Brisk] [D10S] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10 [NGK] [5820] [R5671A-10] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted.]
#10 [Denso] [5321] [IK-31] [Projected] [5 steps colder w/ projected tip. IRIDIUM.]
#10 [Champion] [792] [C59YC] [Projected] [5 steps colder w/ projected tip. Non-Resisted.]
#10 [Champion] [277] [C59Y] [Projected] [5 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#10 [Champion] [687] [C59] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#10 [Champion] [296] [C59CX] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10 [Autolite] [AR3932] [AR3932] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted.]
#10 [Brisk] [D08S] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10.5 [Champion] [791] [C57YC] [Projected] [5.5 steps colder w/ projected tip. Non-Resisted.]
#10.5 [Champion] [276] [C57Y] [Projected] [5.5 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#10.5 [Champion] [686] [C57] [Non-Projected] [5.5 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#10.5 [Champion] [295] [C57CX] [Non-Projected] [5.5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#11 [NGK] [6596] [R5671A-11] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted.]
#11 [Champion] [693] [C55] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#11 [Champion] [294] [C55CX] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#11 [Autolite] [AR3931] [AR3931] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted.]
#11.5 [Champion] [293] [C53CX] [Non-Projected] [6.5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
It was tough to format it for this site, so just let me know if you have any questions about this, plug selection or anything else in general.
Gasket Seat - .708 - .75" reach - 14mm thread dia. - 5/8 hex
Fittment - LSx & LTx w/ gasket seat plugs
Non-Projected tip "gasket seat" plugs that are in bold are highly recommended for nitrous applications!
#Heat Range [Brand] [Part Number] [Design Number] [Tip Designation] [Special Notes]
#5 [NGK] [7373] [FR5] [Projected Stock Heat Range.]
#5 [NGK] [6130] [BCPR5ES] [Projected Stock Heat Range.] [Tighter Gap.]
#5 [NGK] [BKR5EIX-11] [Projected Stock Heat Range.] [Extended Gap.] [IRIDIUM]
#5 [Denso] [3137] [Q16PR-U] [Projected Stock Heat Range.]
#5 [Denso] [5305] [IK-16] [Projected Stock Heat Range.] [IRIDIUM.]
#5 [Champion] [431] [RC14YC] [Projected Stock Heat Range.]
#5 [Autolite] [5503] [5503] [Projected Stock Heat Range.]
#6 [NGK] [2330] [BCPR6ES] [Projected] [1 step colder w/ projected tip.]
#6 [NGK] [6418] [BKR6EIX] [Projected] [1 step colder w/ projected tip. IRIDIUM.]
#6 [Denso] [3007] [Q20PR-U] [Projected] 1 step colder w/ projected tip.]
#6 [Denso] [5304] [IK-20] [Projected] [1 step colder w/ projected tip. IRIDIUM.]
#6 [Champion] [344] [RC9YC] [Projected] [1 step colder w/ projected tip.]
#7 [NGK] [4091] [R5671A-7] [Non-Projected] [2 steps colder w/ NON-projected tip. Non-Resisted.]
#7 [Denso] [3010] [Q22PR-U] [Projected] [2 steps colder w/ projected tip.]
#7 [Denso] [5310] [IK-22] [Projected] [2 steps colder w/ projected tip. IRIDIUM.]
#7 [Champion] [284] [S65YC] [Projected][/b] [2 steps colder w/ projected tip. Non-Resisted.]
#7 [Autolite] [3922] [3922] [Projected] [2 steps colder w/ projected tip.]
#7 [Autolite] [AR3935] [AR3935] [Non-Projected] [2 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [NGK] [4554] [R5671A-8] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [Denso] [5311] [IK-24] [Projected] [3 steps colder w/ projected tip. IRIDIUM.]
#8 [Champion] [796] [C63YC] [Projected] [3 steps colder w/ projected tip. [Non-Resisted.]
#8 [Champion] [279] [C63Y] [Projected] [3 steps colder w/ projected tip. Non-Resisted. Cut back electrode.]
#8 [Champion] [298] [C63CX] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#8 [Autolite] [AR3934] [AR3934] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted.]
#8 [Brisk] [D12S] [Non-Projected] [3 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#9 [NGK] [5238] [R5671A-9] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Denso] [5312] [IK-27] [Projected] [4 steps colder w/ projected tip. IRIDIUM.]
#9 [Champion] [794] [C61YC] [Projected] [4 steps colder w/ projected tip. Non-Resisted.]
#9 [Champion] [785] [C61C] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Champion] [278] [C61Y] [Projected] [4 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#9 [Champion] [688] [C61] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#9 [Champion] [297] [C61CX] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.] [Cut back electrode.]
#9 [Autolite] [AR3933] [AR3933] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted.]
#9 [Brisk] [D10S] [Non-Projected] [4 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10 [NGK] [5820] [R5671A-10] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted.]
#10 [Denso] [5321] [IK-31] [Projected] [5 steps colder w/ projected tip. IRIDIUM.]
#10 [Champion] [792] [C59YC] [Projected] [5 steps colder w/ projected tip. Non-Resisted.]
#10 [Champion] [277] [C59Y] [Projected] [5 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#10 [Champion] [687] [C59] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#10 [Champion] [296] [C59CX] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10 [Autolite] [AR3932] [AR3932] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted.]
#10 [Brisk] [D08S] [Non-Projected] [5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#10.5 [Champion] [791] [C57YC] [Projected] [5.5 steps colder w/ projected tip. Non-Resisted.]
#10.5 [Champion] [276] [C57Y] [Projected] [5.5 steps colder w/ projected tip. Non-Resisted. Fine Wire. Cut back electrode.]
#10.5 [Champion] [686] [C57] [Non-Projected] [5.5 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#10.5 [Champion] [295] [C57CX] [Non-Projected] [5.5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#11 [NGK] [6596] [R5671A-11] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted.]
#11 [Champion] [693] [C55] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted. Fine Wire.]
#11 [Champion] [294] [C55CX] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
#11 [Autolite] [AR3931] [AR3931] [Non-Projected] [6 steps colder w/ NON-projected tip. Non-Resisted.]
#11.5 [Champion] [293] [C53CX] [Non-Projected] [6.5 steps colder w/ NON-projected tip. Non-Resisted. Cut back electrode.]
Last edited by shortdog; 01-31-2018 at 06:58 PM.
#5
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thank you for the work involved in putting this together, and will answer a lot of question that get asked at least once a week on here. very nice.
Stickey material
Also it may be a good idea to put in when you should change to the next heat range, as that is a question that gets asked a lot and if put with this chart would be awsome.
Stickey material
Also it may be a good idea to put in when you should change to the next heat range, as that is a question that gets asked a lot and if put with this chart would be awsome.
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FormerVendor
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thank you for the work involved in putting this together, and will answer a lot of question that get asked at least once a week on here. very nice.
Stickey material
Also it may be a good idea to put in when you should change to the next heat range, as that is a question that gets asked a lot and if put with this chart would be awsome.
Stickey material
Also it may be a good idea to put in when you should change to the next heat range, as that is a question that gets asked a lot and if put with this chart would be awsome.
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#19
10 Second Club
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It's amazing what happens when a truly knowledgeable sponsor posts actual technical content in here, instead of the typical "our stuff is best because...ummm.....we say it is."
PS Since I'm in Canada I have to end everything with eh.....eh?
Last edited by jmill96Z; 11-05-2009 at 08:27 AM.