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Anyone near Philly to help find a problem

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DailyDrifter

The Slow and the Curious
Joined
Dec 5, 2007
Messages
5,118
:confused: My car is acting up. Its breaking when I get to about 10 psi. I need help to determine whether its the engine or tune. I just got the car back from getting brand new valve springs, other valve springs were to weak for some reason (600 miles on them:mad: :mad: ) I also had the car tuned for about 20psi. I dont know whats going on with this thing:confused: . Here is my combo 212-224 roller cam, TE45A, 72lb injectors, 3500 stall l/u, 62mm t/b, stock heads with porting work done to intake runners, roller rockers, ported intake manifold, 3"dp and external wastegate, and XFI. Car has no balls right now. Its 27 degrees outside and this thing is a turd:mad: . I need someone with extensive knowledge to help me out. Will also throw in a case of beer :D. I am willing to travel just about anywhere. Thanks alot
 
Give more details. Usually the members can work through these problems. For instance, from the little info you've given, it sounds like a weak coil pack.
 
I swapped out the coil pack with a known good one and it wasnt the problem. Car sounds like it needs more fuel, but the Wideband was around 11.3-11.5 when they were tuning it. I did a compression test today with my dad and they were all around 150 psi, also took the breathers off to see if there was any blowby. Everything looked good. I tried to test the fuel psi but didnt have the right adapter to run the guage to the hood to see if it was rising 1:1. I took it out last night and whacked it for about 7 seconds, and the highest duty cycle was only 60%. Plugs looked good but they only have about 200 miles on them. Battery voltage is 13.1. Its slow to bring up rpms. Timing(spark btdc) was showing 29.25@3000(DC 13.7%)(actual AF 12.88), 25.50@3500(DC 25.9%)(actual AF 11.50), 19.25@3850(DC 38.4%)(AF 12.25), 18.00@4150(DC 58.8%)(actual AF 11.38). Hope this helps. Also the trans is still shifting a little early, but I think its because the engine is down on power. Let me know if you need more info
 
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