Recent content by ski

12's or even low 13's: - More seat time - Slip the clutch off the line - Power shift - Mine shaft air - Did I mention more seat time?

Make sure red line is set at 7000 rpm minimum. The throttle plates start closing when the engine reaches approx. 300-400 rpm below red line. Install a higher octane tune if you have one. And obviously higher octane gas to match. I'm guessing you're shifting into 4th before the finish line...

See if resetting the KAM, and recalibrating the accelerator pedal/throttle body helps.

No solution to your hesitation problem. However, the O2 sensors should not be causing it, because the ECM is designed to go into open mode during WOT and it ignores the O2 sensor data.

All you need now to dip into the 12's is a lower D/A, like someone else mentioned. And good track prep.

Congrats on reaching the 10's! Looks like switching to slicks was the solution for taming the increased torque multiplication at the rear wheels.

The 3" pulley and smaller rear gear that you installed have significantly increased the torque multiplication at the rear tires, which is the main cause of your traction problem IMHO. Changing the geometry of existing suspension components, or installing different suspension components may...

Did your friend also experience excessive tire spin with a 3.5" pulley and 3.31's?

Larger diameter rear tires and/or a higher gear ratio(lower number) will also increase traction.

If the cooling fans are operating properly and datalogging shows a normal coolant temp, then the temp gauge may be dodgy.

Nice runs. I'm betting you would have broken into the 12's with a decent DA.

If bad gas isn't the cause, then carbon that has built up inside the cylinders or partially clogged fuel injectors may be the culprit. Before messing with the tune, see if dumping a can of Seafoam in the gas tank fixes it. However, it may take a couple hundred miles (and possibly a 2nd Seafoam...

Cleaning the throttle body may help. If that doesn't work, then varnish/carbon may be causing one or more injectors to leak when the engine is off. Dumping a can of Seafoam into the gas tank should clean them out.

If the CAI filter was re-oiled after being cleaned, then it may have been over oiled, which can coat the MAF sensor and cause idle and performance problems. Suggest cleaning this sensor. Also, clean the TB. It's probably real dirty if it's never been cleaned, which can also cause engine...

I can add another trunk leak source. There was condensation on the inside of my 05 GT's rear window on a cool morning. Checked the trunk, and found water in the spare tire compartment. Lifted the trunk fabric liner, and found a wet path leading back to a water filled trough at the bottom of...