Ok, well most of yall know I have a precision 5557s turbo, log type turbo mani, RD fab intake manifold, hahn racecraft intercooler, 60lb injectors, 3in exhaust with only a cherry bomb glass pack, and zzp bfrps. I'm running 16lbs of boost, and I have an AIS fender mount kit, that I'm gonna convert to a trunk mount setup. So after I install the meth system, what should I do next? valve springs? cams? cams, and valve springs? lol or something else.....

The other night I went to the track and couldn't get traction if my life depended on it. I couldn't find my wheel lock at the track so I couldn't put my dr's on. I also need to put my traction bars on as well. Well my fastest 1/4 was a 14.3 @ 104mph, and my fastest trap speed was a 109mph @ 14.6. My 60ft times were crap due to running stock tires lol, I believe they were around 2.6

So yeah, my goal is high 12s... maybe low 12's.

 

If you rev over 7k with that much boost I would consider valve springs. I would do a head port as well. I bet you make more hp with lower boost after a port. I would also think a head port would produce more hp than cams for us. Before you do cams though I would dyno. See if your power is falling off early, tweak your tune. If you're power is climbing to redline then don't worry about them. I am running the ZZP cams and oddly my power falls off at 6800rpms, which is weird. Could be my tune though... I just got a cat back yesterday though so I will go back and dyno again to see if that was part of the issue. Oh yeah, do you have an LSD?...look into one if you don't. Way better than any power adders at this point. And I think you should put a line through the SC in your sig.

 

Well I got all the stuff here at home for a complete rebuild kit. +1mm oversized valves, springs, seats, retainers. Thing is its patriot performance items, and I've heard good, and bad from them. A friend of mine with a turbo cavalier had patriot parts as well and never had any problems. I definately gonna get the car dynoed after xmas, maybe with my income tax. I just like to plan ahead as for my sig, I just need to make a new one!!! Where can I find a LSD for the 4t45e.

 

Engineered Performance: Engineered Performance

 

thanks

 

Hey man nice build on your car. I was wondering what track you went to the other day. I recently moved to SA a couple months and have been looking to get out to the track or anything.

 

The only one around is San Antonio Raceway. You take I10 east towards houston, its a little passed San Antonio city limits.