Thread: Is there a threshold in modding where spark plug gap should be reduced from factory ?

Don't do it. Run the gap at .055ish

Yes, at some point there is a need to reduce the gap because it can be blown out.

You'd be at a pretty high power level to be needing to run anything under a .050 to .055 gap.

Roughly around the point where the supercharger turns into a turbocharger.

Or you're running a nasty blower setup/nitrous and need to close the gap some to prevent blowout.

Light mods no need to mess with gap at all.

What gap would you guys recommend for a build with XP Cam, Double Roller, Stage 2 ported heads, Gen v, 3.0 pulley, SD Headers, lQ4 MAF, FS I/C?

.050 -.055

I usually do .054 so ill try. 055

Sent from my SGH-T989 using Tapatalk 2

i wouldnt recommend it to anyone to be like me, but when i was running smaller pulleys i just gapped it at 0.045" and stopped caring.