3.2L performance

[BYprodriver]

Originally Posted by jaykay

During a recent track day (very cold and wet) I was at around 4000 rpm and fourth on a long straight ....cruising in the rain behind a mid to late eighties 911sc and finally got a signal to pass. On the throttle from 4K I found I had virtually no overtaking power; my foot was flat and I could barely get by in time for the next sweeper. Not sure if the guy started racing me mid pass.

Does it sound like I have a flat spot in engine performance? It was too fast and wet to fiddle around and experiment.

In my 2000 3.2, 4000rpm is where I want to be to start a long pass. 4,000rpm is where the engine really starts to make serious power. Maybe your VarioCam is not functioning.

[jaykay]

Originally Posted by BYprodriver

In my 2000 3.2, 4000rpm is where I want to be to start a long pass. 4,000rpm is where the engine really starts to make serious power. Maybe your VarioCam is not functioning.

Yes exactly....I will investigate the vario cam function. I trust this can be done without a dyno?

[BYprodriver]

Originally Posted by jaykay

Yes exactly....I will investigate the vario cam function. I trust this can be done without a dyno?

Yeah, try your butt dyno 1st, with car in 2nd gear @ 1,500 rpm floor it, VarioCam kicks in between 2200-2500 rpm & revs really take off @ 4000rpm. If your not feeling it then remove cover behind the seats & with trans in neutral rev engine from idle slowly thru 2000-2700rpm & you should hear VarioCam change over if it's working.