What Spark Plugs??? HELP!!!

SaleenGTS · 02-20-2004, 10:50 AM

Man, I need a lot of help lately...now it is plugs.

I have a blower and TFS heads. I can't seem to find the right plugs. My car WILL NOT cold start worth a crap....it will start, pop, sputter and die. I have to sit there for 5 minutes and feather the throtle to get it warm enough to run...it is only 30-35 in the morning.

I used to have NGK FR 5's gapped at .35. It would start ok, but when I would drive it, it would pop and backfire sometimes at about 1/2 or less throttle at lower rpm's.

I decided to switch to a different plug. Now I installed NGS B9ES gapped at .35. It is worse than before. This is what I was talking about above...but it pops and backfires almost everytime.

Any suggestions? Do I need a colder plug? What about Gap, what Gap should I use? I have heard some using .45, but I have been recommended .35 for some reason. What plugs are you guys using?

Hozer 88GTConv · 02-20-2004, 04:00 PM

3924's...do not use platinums either. Just straight up 3924's are what tfs calls for, at least twisted wedge heads. 35 thousands...

02-20-2004, 10:50 AM	#1
SaleenGTS RICE taste like Chicken Join Date: Jun 2000 Location: Edmond, OK Posts: 687	What Spark Plugs??? HELP!!! Man, I need a lot of help lately...now it is plugs. I have a blower and TFS heads. I can't seem to find the right plugs. My car WILL NOT cold start worth a crap....it will start, pop, sputter and die. I have to sit there for 5 minutes and feather the throtle to get it warm enough to run...it is only 30-35 in the morning. I used to have NGK FR 5's gapped at .35. It would start ok, but when I would drive it, it would pop and backfire sometimes at about 1/2 or less throttle at lower rpm's. I decided to switch to a different plug. Now I installed NGS B9ES gapped at .35. It is worse than before. This is what I was talking about above...but it pops and backfires almost everytime. Any suggestions? Do I need a colder plug? What about Gap, what Gap should I use? I have heard some using .45, but I have been recommended .35 for some reason. What plugs are you guys using? __________________ Dustin 89 Saleen GT Sport Supercharged 306 Started her up 6/8/03 Old Motor Supercharged 347 516 rwhp 553 rwtq 11.249@126.83 1997 Honda CBR 1100XX Super Blackbird 162 hp

02-20-2004, 04:00 PM	#2
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Autolites... 3924's...do not use platinums either. Just straight up 3924's are what tfs calls for, at least twisted wedge heads. 35 thousands... __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy

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