forhamilton

Not having read one of these reports, I'd really appreciate input from some of you guys in the know. The picture indicates a 1 second over-rev. Does it also indicate that it hit 10,187 RPM? I was told that this happened in March and the car has ran multiple times since this over-rev with no issues. Motor has 42 hours on it. Should I be conncerned? Any thoughts are appreciated.

Yannick-HST

The maximum-rev ever reached since the last reset of the ECU was 10187 rpm.
ltnmotmo_w indicates that it was overrevved between 8500 and 9500 rpm for a total time of 1 second since the last reset.
It has a total of 42,4 hours since the last rebuild.

I´d do a leakdown-test... If everything´s okay just drive it until it´s time for the next rebuild.

MSR Racer

Yes. I missed a shift in my 996 cup. I went 5 - 4 instead of 5-6! RPMs went to 10000 per Motec but leak down was unchanged.

forhamilton

Compression is as follows
> Cyl #1 = 232
> Cyl #2 = 232
> Cyl #3 = 235
> Cyl #4 = 235
> Cyl #5 = 230
> Cyl #6 = 230

Leak down is as follows:
> Cyl #1 = 7%
> Cyl #2 = 7%
> Cyl #3 = 10%
> Cyl #4 = 9%
> Cyl #5 = 9%
> Cyl #6 = 10%

amso3

I've seen a 997.1 Cup motor at 10,471 that ran PCA club races for a couple years after the over-rev, multiple podium finishes.

forhamilton

That's an awesome chart. Thank you.