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#1
04-20-2005, 03:57 PM
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Spark Plug Gap
I always heard you need to regap your plugs to prevent spark blow. I regapped to .036 is that where i should be? Or should i have them gapped lower.
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92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC 
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#2
04-20-2005, 06:23 PM
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Re: Spark Plug Gap
Q: What should I set my spark plug gap to?
A: The stock spark plug gap is between 0.039 to 0.043 in. The plug gap should be decreased to between 0.028 and 0.034 in. for running higher than stock boost levels. Ideally, you should use the largest gap that does not create spark blowout with the boost setting you use.
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'92 3000GT VR4 Current Mods: K&N FIPK RPS Streetmax clutch Rebuilt tranny Free Boost Mod Maximal Performance Solid Motor Mounts Pictures and Videos of my car Got a question about your auto insurance? I'm an insurance agent, ask away.
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#3
04-20-2005, 07:00 PM
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Re: Spark Plug Gap
I did .34 and I think thats what most people who raise the boost up to 14 have theirs at, I did it in anticipation of raising the boost. It works fine, a hell of a lot better than .45 (the gap if the plugs installed when I got the car).
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1995 3000GT VR-4 Installed: ESP front precat eliminating downpipe, test pipe, RF-1008 K&N, Dejon tool Y pipe, 1G DSM BOV, MSD wires, Guted rear pre cat, ISSPRO EV Marine boost gauge, IPO MBC, EGR blockoffs, Palm m515 dataloger setup, NGK iridium plugs, SPEC stage II clutch 500ft/lb, 5300k HID plug and play setup. Soon:Topline Engineering ground wires.
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#4
04-20-2005, 07:40 PM
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Re: Spark Plug Gap
if you aren't getting blowout...there is no reason to lower the gap.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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