- Oct 28, 2002
- 108
- 0
- 0
02 GT KB Heads/Cam 14# pulley 11psi showing.
During a 4 gear run the IAT temperatures are great during the first 2 gears but go crazy through third and fourth. This is evident during my track runs. Great MPH at the 1/8 (95MPH) but a drop off at the 1/4 (116). This translates into timing pulled as heat increases, hence less RWH.
I have included an Autotap of a run at the track. I had to scale Engine Speed (62.17 = 6217RPM, 225 = 22.5 degrees of timing. BTW this is with water injection.
Autotap Results
I have been trying to solve this issue for sometime.
Larger water holding tank (Vortec).
Gords Heat exchange .
Water injection.
Next up small shot of Nitros...
Does anyone else have any datalogs that measure IAT?
Is this just a KB/GT issue?
Does anyone else see this issue?
Never had these problems when I had a Vortech SQ 14#.
Because of this heat issue I can not do back to back runs at the track. Any extended street activity is also a concern. The water injection does help squelch detonation at the expense of rwh.
Injection of a 50/50 mix cause a 10-20 rwh loss from start to end. A higher methonal mix may help but this is a pain..
During a 4 gear run the IAT temperatures are great during the first 2 gears but go crazy through third and fourth. This is evident during my track runs. Great MPH at the 1/8 (95MPH) but a drop off at the 1/4 (116). This translates into timing pulled as heat increases, hence less RWH.
I have included an Autotap of a run at the track. I had to scale Engine Speed (62.17 = 6217RPM, 225 = 22.5 degrees of timing. BTW this is with water injection.
Autotap Results
I have been trying to solve this issue for sometime.
Larger water holding tank (Vortec).
Gords Heat exchange .
Water injection.
Next up small shot of Nitros...
Does anyone else have any datalogs that measure IAT?
Is this just a KB/GT issue?
Does anyone else see this issue?
Never had these problems when I had a Vortech SQ 14#.
Because of this heat issue I can not do back to back runs at the track. Any extended street activity is also a concern. The water injection does help squelch detonation at the expense of rwh.
Injection of a 50/50 mix cause a 10-20 rwh loss from start to end. A higher methonal mix may help but this is a pain..