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Small miss or stutter at wot

xxburkettxx07

xxburkettxx07

New member
98 gtp, Just put 3.4 pulley on zzp pcm 180t stat 605 plugs supercharger gasket cold air intake, down pipe no cat u delete, sometimes when at wot it kinda sputters or a slight miss this doesn't happen all the time, in stumped..
 




get some 104 copper plugs gaped at 0.50 in there.

how much kr your seeing? not scanning? you had best start. if you got a droid phone look up the torque app.
 


Look at your SC snout, by the pulley. If you see a bunch of black stuff around there, good chance your belt is slipping. If you're using the stock size belt with a 3.4, I can just about guarantee it's slipping. Which may actually be helping you, belt slip = less boost = less KR. 605's is what I run in my GT, I wouldn't use them with anything smaller than a stock pulley, but that's just me. You also want as wide of a gap as you can run w/out spark blowout, this will vary so you have to play with it a bit. .055 is a good place to start, if you need to go lower do it, but .045 is like nitrous small.
 
Do the bars on your boost guage fluctuate at all? Or I guess with a 3.4 they might be maxed all the time, you should get that scanner and get some scans in before doing anything else tbh.
 
What about black stuff all around the blower pulley/snout? Anything there? If I use the same belt with my 3.2 that I do with my 3.5, it slips and I can see that crap start to form around there. Did you put a smaller belt when you dropped pullies?
 


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