Tuning Problems.

black_nightmare · 12-30-2005, 01:28 PM

I have a 2001 Mustang GT that I recently installed a Procharger P1sc Stage 2 kit on. I am having problems with the tune.

Specs:
Procharger P1SC w/ 10 lbs pulley and 3 core intercooler.
Stock MAF w/ MAFia set on 3.
NGK TR-6 plugs
focus fuel pump
KB Boost-A-Pump
42# injectors
Accufab intake plenum w/ 75mm throttle body.
Magnaflow x-pipe and Magnaflow cat-back
3:73 gears.

The car drives great, but will not put down the power I want. The latest dyno only showed 351 rwhp & 361 rwtq. According to my boost gauge, the car is achieving 11 psi of boost at 6000 RPM.

I data logged the run cooresponding to the blue lines and found

1) According to the my Predator, the MAF_V hits 4.9 volts at 4529 RPM. However, it does not stay that high for long and when viewed in Diablosport's CMR_dat software, it only reaches 848 counts at 4529 RPM and 944 counts at 6000 RPM.

2) The spark advance gets to a maximum of 16.5 degrees at 5700 RPM.

3) The load reading gets to 1.41 at 5700 RPM.

Can anyone give me some answers on why this car is not achieving the power it should be? The tuner claims that this tune made 390 rwhp & 417 rwtq on a similarly equipped 2003 GT. Does the load reading seem a bit low given the modifications and the level of boost the car is making? Is the MAF pegged? What should I expect to see for spark advance?

12-30-2005, 01:28 PM	#1
black_nightmare Junior Member Join Date: Dec 2005 Posts: 12	Tuning Problems. I have a 2001 Mustang GT that I recently installed a Procharger P1sc Stage 2 kit on. I am having problems with the tune. Specs: Procharger P1SC w/ 10 lbs pulley and 3 core intercooler. Stock MAF w/ MAFia set on 3. NGK TR-6 plugs focus fuel pump KB Boost-A-Pump 42# injectors Accufab intake plenum w/ 75mm throttle body. Magnaflow x-pipe and Magnaflow cat-back 3:73 gears. The car drives great, but will not put down the power I want. The latest dyno only showed 351 rwhp & 361 rwtq. According to my boost gauge, the car is achieving 11 psi of boost at 6000 RPM. I data logged the run cooresponding to the blue lines and found 1) According to the my Predator, the MAF_V hits 4.9 volts at 4529 RPM. However, it does not stay that high for long and when viewed in Diablosport's CMR_dat software, it only reaches 848 counts at 4529 RPM and 944 counts at 6000 RPM. 2) The spark advance gets to a maximum of 16.5 degrees at 5700 RPM. 3) The load reading gets to 1.41 at 5700 RPM. Can anyone give me some answers on why this car is not achieving the power it should be? The tuner claims that this tune made 390 rwhp & 417 rwtq on a similarly equipped 2003 GT. Does the load reading seem a bit low given the modifications and the level of boost the car is making? Is the MAF pegged? What should I expect to see for spark advance?