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NA-T Sparkplug info...

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Old 04-12-07, 11:37 AM
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GSoup
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Default NA-T Sparkplug info...
This is for tthose that are FI. Just curious to know, what plugs everyone else are running with and at what gap?

I'm running NGK 6097

oops i forgot their gapped at 26
Last edited by GSoup; 04-12-07 at 06:59 PM.
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Old 04-12-07, 02:09 PM
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Kharizma
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i'm going to put NGK Iridium IX's in mine next week when i get tuned and everything. not sure about the gap though.
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Old 04-12-07, 06:31 PM
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NGK R5671A-8 V-Power Racing 22 gap
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Old 04-12-07, 07:18 PM
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Originally Posted by BurgandyGS
NGK R5671A-8 V-Power Racing 22 gap
How are those? Those are 4554, those are 2 steps colder right?
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Old 04-12-07, 09:16 PM
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I just put in some NGK 3330 plugs. Works ok so far.
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Old 04-13-07, 08:46 AM
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JPI Racing
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NGK 3330 with the 7 heat range. Work very well with the boosted car and they are cheap $1.29 per plug.
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Old 04-14-07, 06:34 PM
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BurgandyGS
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Originally Posted by GSoup
How are those? Those are 4554, those are 2 steps colder right?
They are number 8. Very cold plugs. They suck on mornings when it's in the 50's. They are only like 2 dollars a plug but I have to change them a lot. I want some iridiums. Do you know of a good one? I'm running like 20lbs.
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Old 04-14-07, 07:52 PM
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Originally Posted by JPI
NGK 3330 with the 7 heat range. Work very well with the boosted car and they are cheap $1.29 per plug.
JPI
Those are the exact plugs I'm using. My friend tells me that those plugs should be changed every 10k miles. It's a pain in the ***, but at least the plugs are cheap lol.
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Old 04-14-07, 08:54 PM
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GSoup
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Originally Posted by BurgandyGS
They are number 8. Very cold plugs. They suck on mornings when it's in the 50's. They are only like 2 dollars a plug but I have to change them a lot. I want some iridiums. Do you know of a good one? I'm running like 20lbs.
I figured i would share this with everyone... some good info here.
http://www.mkivsupra.net/vbb/showthread.php?t=41927

Hope this helps

Plug selection
Note - This selection list does not take Nitrous into account. If you have Nitrous go one grade colder than this table advises at your boost/performance level.

Normally Aspirated
NGK - Standard - BKR5ES-11 (2382) - gap 1.1mm
NGK - V-Power - BKR5EYA-11 (2526) - gap 1.1mm
NGK - G-Power Platinum - BKR5EGP (7090) - gap 1.1mm
NGK -Laser Platinum - BKR5EP-11 ( 3440) -gap 1.1mm
NGK -OE Laser Iridium - IFR5T11 (4996) - gap 1.1mm
NGK - Iridium IX - BKR5EIX-11 (5464) - gap 1.1mm
Denso Platinum - PK16R11 - gap 1.1mm

Stock TT
NGK - BCPR6EP-11 - gap to 1.1mm PLATINUM
NGK - BKR6E (2756) - gap 1.1mm
NGK Iridium - BKR6EIX-11 (3764) leave gap alone
Denso Platinum - PK20R11 - gap 1.1mm
Denso Iridium - IK20 - leave gap alone

TT @ upto 1bar
NGK - BCPR7ES (3330) - gap 0.9mm
NGK - BKR7E (6097) - gap 0.9mm
NGK - Iridium - BKR6EIX or BKR7EIX - leave gap alone
Denso Platinum - PK20R11 - gap 0.8mm
Denso Iridium - IK22 - leave gap alone

TT/hybrids @ upto 1.3bar
NGK - BCPR7ES (3330) - gap 0.7mm
NGK - BKR7E (6097) - gap 0.7mm
NGK - BKR8E - gap to 0.7mm
NGK - BCPR8ES (3330) - gap 0.7mm
NGK Iridium - BKR7EIX - leave gap alone
NGK Iridium - BKR8EIX - leave gap alone
Denso Platinum - PK20R8 - gap 0.7mm
Denso Iridium - IK22 - leave gap alone
Denso Iridium - IK24 - leave gap alone

Single Turbo/Big Twins @ upto 1.3bar
NGK - BCPR7ES (3330) - gap 0.7mm
NGK - BKR7E (6097) - gap 0.7mm
NGK - BKR8E - gap to 0.7mm
NGK Iridium - BKR8EIX - leave gap alone
Denso Iridium - IK24 - leave gap alone

Single Turbo/Big Twins @ upto 1.8bar
NGK - BCPR8ES - gap 0.6-0.7mm
NGK - BKR8E - gap 0.6-0.7mm
NGK Iridium - BKR8EIX - leave gap alone
Denso Iridium - IK27 - leave gap alone

Single Turbo/Big Twins @ 2+bar
NGK - BCPR8ES - gap 0.6mm ??? UNTESTED
NGK - BKR8E - gap 0.6mm ??? UNTESTED
NGK Iridium - BKR8EIX or BKR9EIX? - leave gap alone ??? UNTESTED
Denso Iridium - IK27 to IK31 - leave gap alone ??? UNTESTED


Information sources
Denso
NGK
Sparkplugs.co.uk
Personal experience
Previous discussions on this and other BBS's.

-Alex
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Last edited by GSoup; 04-14-07 at 09:08 PM.
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Old 02-16-09, 10:27 AM
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so if i'm going to be NA-T soon, running 8psi for a little while then running up to about 14psi, im guessing i should use the bkr7e iridiums? or is that too much?
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Old 02-17-09, 10:30 PM
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im curious too. what is recommended.
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Old 02-19-09, 10:17 AM
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I was running 6097 with gap of 25
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