STS guys spark plug gap
05-19-2007, 08:55 PM
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Anywhere from .30 to .35. If it starts to miss at rpm then tighten the gap a bit. I've never had a problem with it but have seen spark blowout on another turbo car and it sucks.
Last edited by hissin'98; 05-19-2007 at 09:27 PM.
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05-20-2007, 05:28 PM
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Zombie its Brennan you will be tuning my stuff will be done tonite and ready for the tune. We will be tuning for 7-8 psi. What do you think stay safe with .030?
05-21-2007, 11:04 AM
#10
Originally Posted by vipvegas
Zombie its Brennan you will be tuning my stuff will be done tonite and ready for the tune. We will be tuning for 7-8 psi. What do you think stay safe with .030?
BTW, don't run platinum plugs, run some NGK TR6's if you can find them, or another copper plug 1 heat range colder than stock.
05-21-2007, 12:54 PM
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Originally Posted by vipvegas
I gapped them at .030 and they are tr6's. WIll do the fuel pump tonite, trap door style. When can you do the initial tune?
05-21-2007, 03:07 PM
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not to barge in on this, but what about using an irridium plug??
I'll be pushing about 700 to the wheels (under about 14 lbs boost), so i was looking to maybe go a little colder than a TR6, to a TR7... but they only make this in a irridium plug (or so says the book at the auto parts store) ... Or do i not need to go to a plug that cold?
I'll be pushing about 700 to the wheels (under about 14 lbs boost), so i was looking to maybe go a little colder than a TR6, to a TR7... but they only make this in a irridium plug (or so says the book at the auto parts store) ... Or do i not need to go to a plug that cold?
05-21-2007, 03:10 PM
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You do need a colder plug but theres a few different ones that people use. Do a search for TR plugs in that range, youll see tons of threads blabbering back and forth about them
05-22-2007, 09:55 AM
#16
If you ask the guys at STS they will say .028 to .030 for a gap. I have mine gapped at .029.
And from what I'm told, you can't gap irridium plugs. And if you can, you can't gap them to the gap needed for forced induction.
And from what I'm told, you can't gap irridium plugs. And if you can, you can't gap them to the gap needed for forced induction.
05-23-2007, 10:36 AM
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I forgot to gap my plugs on my new setup. I was running NA for a while and recently went back to a turbo set-up. My plugs were gapped at .050 for NA, and I was getting major blow out under boost. I gapped them back to .030 and all is fine. I'll be replacing the old plugs with TR6s this weekend.
