Hey turbo guys

Real tech discussion on design, fabrication, testing, development of custom or adapted parts for Pontiac Fieros. Not questions about the power a CAI will give.

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Honest Don
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Hey turbo guys

Post by Honest Don »

what sparkplugs are you using?
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Shaun41178(2)
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Post by Shaun41178(2) »

I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.
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Aaron
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Post by Aaron »

I am running AC Delco Rapidfires, stock gap and rating though.
88GT 3.4 DOHC Turbo
Gooch wrote:Way to go douche. You are like a one-man, fiero-destroying machine.
FormulaGT
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Post by FormulaGT »

Shaun41178(2) wrote:I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.
Same here, but I believe Im gapped at .040 or .035- I have an upgraded ignition though.
The Dark Side of Will
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Post by The Dark Side of Will »

Aaron wrote:I am running AC Delco Rapidfires, stock gap and rating though.
But you have zero experience actually running the engine with boost.
Honest Don
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Post by Honest Don »

Shaun41178(2) wrote:I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.

boost and nitrous and you didn't even drop a heat range or two? you are braver than I, my friend
whipped
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Post by whipped »

Honest Don wrote:
Shaun41178(2) wrote:I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.

boost and nitrous and you didn't even drop a heat range or two? you are braver than I, my friend
I dropped 2 ranges running NA.
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Shaun41178(2)
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Post by Shaun41178(2) »

Honest Don wrote:
Shaun41178(2) wrote:I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.

boost and nitrous and you didn't even drop a heat range or two? you are braver than I, my friend
Nope. Haven't had to. Plugs aren't overheating? at all. They look just fine. No pinging, no detonation. Its all in the tune homie.
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Shaun41178(2)
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Post by Shaun41178(2) »

FormulaGT wrote:
Shaun41178(2) wrote:I am running stock ac delco plugs. R42TS

I have them gapped smaller around .025 I think.
Same here, but I believe Im gapped at .040 or .035- I have an upgraded ignition though.
I just noticed this, I have an upgraded ignition too. Crane Hi6 s with coil and MSD low ohm 8.8mm wires. I had to lower the gap because the turbo pumps a lot of air into the cylinder, more then your old ihi, plus I was running nitrous too so it takes cylinder pressures to a whole new level.

Stock ignition blows, and the aftermarket box does make a difference but you can only shine a turd so much. I am on the verge of having to lower the gap again. If my bottle pressure is over 1k psi, it misfires from the spark blowing out, if under 1k psi it runs good.
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Aaron
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Post by Aaron »

7730 DIS FTW.
88GT 3.4 DOHC Turbo
Gooch wrote:Way to go douche. You are like a one-man, fiero-destroying machine.
whipped
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Post by whipped »

Aaron wrote:7730 DIS FTW.
^^^ It's like having 3 coils for the price of 1
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