spark plug gap for 20psi and for 24psi of boost
Aug 24, 2006, 06:30 PM
#1
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spark plug gap for 20psi and for 24psi of boost
what should i be gapping my spark plugs at for 93 octane at 20-21psi of boost and what should i be gapping them at for 97 octane at 23-24psi of boost?
Aug 24, 2006, 06:49 PM
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Stock gap is .7 - .8 - I don't see any reason to change that on a stock turbo.
https://www.evolutionm.net/forums/sh...d.php?t=118252
https://www.evolutionm.net/forums/sh...d.php?t=118252
Aug 26, 2006, 02:18 PM
#7
Originally Posted by sparky
How many PSI you running at smokester? And is that with 8's?
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Aug 27, 2006, 06:50 PM
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the reason i ask about spark plug gap is because i bought a turbo and supercharger book and according to that book and al other resources i have read that "...When you run higher boost you must regap your spark plugs to a smaller size. The reason for this is because when you pressurize your cylinder chambers it actually makes the gap larger with all the pressure built up. Therefore if you run higher boost it makes the spark plug gap even further apart, which may cause a Service Engine Soon light to come on."
And i never had a problem with the light coming on until i started running higher boost. that is why i asked what your guys are gapping them at.
I will try .022 tomorrow
And i never had a problem with the light coming on until i started running higher boost. that is why i asked what your guys are gapping them at.
I will try .022 tomorrow
Aug 27, 2006, 06:53 PM
#9
Originally Posted by drewblueeye
the reason i ask about spark plug gap is because i bought a turbo and supercharger book and according to that book and al other resources i have read that "...When you run higher boost you must regap your spark plugs to a smaller size. The reason for this is because when you pressurize your cylinder chambers it actually makes the gap larger with all the pressure built up. Therefore if you run higher boost it makes the spark plug gap even further apart, which may cause a Service Engine Soon light to come on."
And i never had a problem with the light coming on until i started running higher boost. that is why i asked what your guys are gapping them at.
I will try .022 tomorrow
And i never had a problem with the light coming on until i started running higher boost. that is why i asked what your guys are gapping them at.
I will try .022 tomorrow
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