talon20g
15+ Year Contributor
- 205
- 6
- Mar 21, 2007
-
WHITAKERS,
North_Carolina
The car is a fairly new build although she sat for 4 years and is now being finished up. I'll give some info on the car when I start to list what has been checked and changed. The car had pulled all the way till redline and then during a pull I heard a pop at around 4200rpm's. There were a few things that I found after. First was the line going to the boost gauge that came off and was laying at my feet, I also found that I had forgotten to put a check valve in the brake booster line and the exhaust gasket was blown. The exhaust gasket was my fault, I had some how managed to leave a small washer between the head and manifold. Once all this was fixed I went back out and as soon as the car starts to build boost it backfires and cuts out at around 4000rpms. I can ease up past 4000rpms if Im light on the throttle.
The head is rebuilt with new guides, springs, valves and cams for a previous car and has less than 50 miles on it. Also has a jmf intake manifold. The bottom end is a stock 6 bolt and all the timing components are new. The timing is correct. I've checked twice.
I've done several boost leak test and the car only has a small leak at the throttle body. Takes almost a minute to drop from 20 psi.
New parts:
Aeromotive 340lph rewired fuel pump
10 micron filter
-6an from filter to rail
FP red turbo
front mount
Key Diver chip
Innovate wideband
Other parts from older build:
1000cc injectors
Evo 8 maf
rebuilt ecu
coil on plug
38mm tial
tial bov
Ive done multiple boost leak test and swapped out the ignitor,switched cop to the factory coils, different plugs (brp7es) gapped at .025, .022 and then .018. Gone through the fuel system and calibrated the wideband. I have dsmlink but I'm still learning. I got it running and cruising, seemly well but had the same results while under load.
The compression was at 160-165psi on all cylinders. The base timing is set at 5 degrees and the cas isn't 180 out. I may be missing a few things but this about covers it. Any ideas?
The head is rebuilt with new guides, springs, valves and cams for a previous car and has less than 50 miles on it. Also has a jmf intake manifold. The bottom end is a stock 6 bolt and all the timing components are new. The timing is correct. I've checked twice.
I've done several boost leak test and the car only has a small leak at the throttle body. Takes almost a minute to drop from 20 psi.
New parts:
Aeromotive 340lph rewired fuel pump
10 micron filter
-6an from filter to rail
FP red turbo
front mount
Key Diver chip
Innovate wideband
Other parts from older build:
1000cc injectors
Evo 8 maf
rebuilt ecu
coil on plug
38mm tial
tial bov
Ive done multiple boost leak test and swapped out the ignitor,switched cop to the factory coils, different plugs (brp7es) gapped at .025, .022 and then .018. Gone through the fuel system and calibrated the wideband. I have dsmlink but I'm still learning. I got it running and cruising, seemly well but had the same results while under load.
The compression was at 160-165psi on all cylinders. The base timing is set at 5 degrees and the cas isn't 180 out. I may be missing a few things but this about covers it. Any ideas?