So having a tough time with the cold startup on this car. 1998 Trans Am 5.7 (FAST 92 intake manifold, 92mm throttle body, Summit 8715R1 camshaft (222/234, .600/.575, 115+3), 36lb/hr injectors, racetronix fuel pump w/ wire kit, 3600 stall converter)
Here is the tune file > Current File.hpt
Here is the cold start with warm up idle > Cold Startup with idle warmup.hpl
Here is the warm start > Warm Startup.hpl
As you will see if the cold start log file, the start up is terrible. But what I notice is that the Idle Startup Airflow immediately once it does fire up, then once the Idle Startup Airflow is at zero the STIT starts adding a ton of airflow, then once idle is stable the STIT immediately starts removing. IAC starts at 158 before cranking, then jumps up to 310 when the STIT starts adding all the airflow, then tapers back down to low 100s until full warmed up temperature it gets down to 80 in the warm start log file. I see that the Idle Adapts is wanting around 2 g/s once the idle is stable across the whole board. But should I increase the throttle body set screw before increasing the base running airflow table?
Reply With Quote
Originally Posted by NBMY2KTA
