^^^^I ran the car open turbo today and the problem still happened.. So I don't think is the filter or the 3" piping
lol

just check ur plugs man


im running .030 gap what about you guys??

 

I am running ngk bkr7e gapped to .030, I will check them after work tomorrow, what plugs would u guys recommend?

 

Just offering some other options, don't have to be a dick? I'm just saying after he tries the plugs it could have been something as simple as a restriction in the intake.

 

Well considering your running the stock heat range plug which is a no no. Run an 8 heat range, one step colder. Allot of us run the NGK-BR8IEX? (2668 stock number) They come pre gapped to 0.33-0.34, run them right out of the box.

 

Thats debatable.

Us Midwestern boys run 7s without issues. A certain high hp supercharged AP2, a certain InlinePRO stage 2 AP1, and someone who decided to sell their s2000 for Chevrolet vehicle with a Cobalt steering wheel.

 

Does it sound like this?
[media]http://www.youtube.com/watch?v=5R2GkhbL8Hw [/media]

That was with my s/c sputtering at 7700rpms with range 7 plugs, swapped out for 8s and it went away.

 

Not really it's more of like a popping at the end of the powerband, and it like bucks through it, I just ordered some 8s and 9s so I'll get them tuesday

 

Check your wideband

 

I had the same problem after a high speed 5 gear run in my old turbo DelSol. It turned out to be the spark plugs. I ended up melting the electrode on number 4 cyl.

Listen to these guys and check your plugs.

 

so I changed my plugs for the spare set I had laying around, problem still happened, car bucks hard under wot in the higher rpms, I had the tank pretty much empty and filled up thinking it might be the gas, nope its still happening, yes these are 7 plugs, I will try the 8s when they arrive, but if its not the plugs(which it doesn't seem to be now) what else could this be? I will hook up the laptop up tomorrow and datalog and try and send it to evans, this sucks...