WS6HUMMER

iTrader: (19)

I heard the stock gap setting on an ls1 is .060" and that for every 50 hp over stock to close the gap by .004" So I figured I'd set the gap for an extra 225 hp (with the 125hp pills in) and set the gap @ .042" Is this right? N/A my car makes about 390 rwhp. I just read the sticky about spark plugs and saw that .038" is reccomended for a 125 shot like I plan on running and now I'm really confused! Any insight will be greatly appreciated, if I did this wrong and need to re gap my plug I want to know.

xaon

iTrader: (12)

The factory gapping is @ .060", but that is on factory heat range plug. (ie. TR5)

The TR6 plug is 1-step colder and therefore needs a smaller gap. .038" on the TR6 should work very well for your car.

Ramshaft

iTrader: (2)

if you look in the spark plug sticky it will tell you what the gap should be for mine it was between .35 to .38

WS6HUMMER

iTrader: (19)

Thanks, guess I'll just have to pull and regap all the plugs.

cantdrv65

iTrader: (3)

TR6's are gapped right at .035 to .038 when you buy them. That is perfect. I simply check gaps against one another when I install the TR6s....

WS6HUMMER

iTrader: (19)

Thanks but I already installed mine gapped @ .042
I'll be pulling them and re-gapping them in a few minutes.

Ramshaft

iTrader: (2)

really sorry to hear that. it is bad enough to do it once but twice damn

WS6HUMMER

iTrader: (19)

LOL! Yep, my hands are so scratched and bruised. I got the smog line block off plates coming from thunder now too, tired of moving those things out of the way everytime I get ready to acess my plugs or wires.

Ramshaft

iTrader: (2)

Well good luck

cantdrv65

iTrader: (3)

Youd be fine with the .042 gap actually. No need to split hairs....but whatever you want to do.

CAT3

iTrader: (9)

Sticky on plugs is worth it. Rule of Thumb, dont exceed +.005 or -.005 from factory preset gap of the plug, e.g. TR6 is preset at .035", you should be able to stay in .030-.040" range, if not, then you should use a different plug.

red fury

iTrader: (1)

.033 here

WS6HUMMER

iTrader: (19)

Thanks for all the input everyone. I yanked all of them on the 3rd and reset them to .035 I just dont want a backfire or any detonation.