Stage One Colder Plugs

[TSITuner4Lyfe69]

I Got NGK Stage one colder plugs off of Mach V Motorsports and i was wondering im running a maft and gm 3" and 3" turbo back and k&n and 18lbs right now and i was wondering if these stage one colder plugs are safe or not?

 

[housegsx]

I think the most you could do is foul them out and have to replace them again. I'm using 1 step colder plugs without issue.

 

[daren_p]

I'm assuming your currently running 6 plugs & you just bought the 7's? If so, you should be fine at 18 psi with the 7's. I've run much lower boost then that on my 7's on occasion (like 13-14 psi) & didn't have fouling issues. Running 18 psi I would recommend the 7's as the plug to use.

 

[housegsx]

Yep, I'm running my 16g on 12psi wastegate spring pressure until I order my fuel mods. No issue so far.

 

[Talesin]

Generally speaking, wastegate spring pressure with an MHI actuator gives 10psi. May want to check your actuation line and vacuum source fitting for leaks, house, just to be on the safe side.

 

[TSITuner4Lyfe69]

Thanks Guys For The Feed Back

 

[housegsx]

Generally speaking, wastegate spring pressure with an MHI actuator gives 10psi. May want to check your actuation line and vacuum source fitting for leaks, house, just to be on the safe side.

I'm running an externally gated Tial on the o2 with a 12 psi spring. Thanks for the warning anyways though.

 

[Talesin]

Ah, right.. didn't read your modlist, just saw '16G'. Didn't figure anyone would go external until a 20g at least.