ss2000ls1

I have NGK TR6 plugs with MSD wiring and the plugs are gapped at .035.I have a 6psi PD supercharger on it. When i started it up i keeps getting misfires. Is the gap ok for this setup or do i need to change it and if so what to? Do i need to program it so i can run the plugs at these gap? need HELP!

Mods:
Hookers LTH and Y pipe
SLP loudmouth Exhaust
Powerdyne 6psi Supercharger

White_Hawk

iTrader: (3)

That's the same plug and gap I had on my PD setup with no issues. It is probably something else.

-Geoff

WMSuperSport

iTrader: (23)

I'm having the same prob with cylinder #7. I'm going to check the plug wire, plug, and coil for proper spark. I don't know if your misfire is just on one cylinder or all of them but it might be some things to check out. ???

MYTURBOT/A

#7 is usually the first cylinder to let go so be prepared for the worse guys.

Also .035 is a little tight for only 6psi, I'd open the gap up to .040

WMSuperSport

iTrader: (23)

Hah, that's funny. I don't think any one cylinder is typical of "letting go" but I've never had an engine go bad so I'll keep you posted. I'll be prepared for a plug wire or a rocker arm at worst.

TurboLT1

iTrader: (1)

I have seen misfire directly relate to the cylinders that had cracked ringlands.

2001WS6Vert

That was my lucky number on my original motor. (melted piston)

snkchrmr

Same good luck here,cracked ring land #7 cylinder. Yeah from what I was told the #7 cylinder takes the most abuse from FI. Good luck

MYTURBOT/A

Mine was #7 also. must be a coincidence.

MelloYellow

I've heard #7 seems to lean out first due to manifold design.

Or maybe it is crank/TQ related?

S_J_H

Well I broke piston #3. So who knows..