wm711

Im looking at an 02 with 70K+ miles and the rev report is amazingly low. Like 1 second of >2 and less that i min >1. It is a 6 speed. TIA, Bill

Third-Reef

No it does not erase it. In seconds it does not sound like a lot, the actual numbers sound way more scary. The important thing is how long ago it was. If it was .5 Hrs. ago i would be concerned, 20 Hrs. not so much.

mxracer

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manimal

Also, there has been a lot of debate about whether it's possible to collect Range 2's without misshifting, but I can personally confirm that it is definitely possible if you have a tune (even if the rev limit isn't raised, you can hit it hard enough to see a few Range 2 ignitions). You wouldn't expect to see much time there, though, from simply bouncing off the limiter, so ~1s or less is certainly plausible, even if the car has been driven reasonably hard.

TT Surgeon

Any 996 or 997 ecu can be wiped clean for a few hundred dollars....

Kevinmacd

Think its more down shifting to soon bringing it above the rev limiter.
Think bouncing off the rev limiter are type 1s.

986 and 996 models have 2 Rev Ranges. Rev Range 1 records ignitions at the rev limiter whilst Rev Range 2 records ignitions beyond the limiter

http://www.911virgin.com/porsche/rev-range-information/

powdrhound

You can easily record type 2s by up-shifting at or near the limiter as your rpms may spike imperceptibly as you press in the clutch and release the throttle during the upshift shift. It happens so fast you don't even see it with the naked eye especially with a lwfw as the inertia of the engine carries it through the revs limiter. You won't feel it as you are off the throttle at that point.

manimal

On a few occasions, I have done a Durametric readout, taken a drive where I bounced off the limiter in 2nd gear, taken another Durametric readout, and seen the Range 2's increase by 1-3 ignitions. I know I didn't downshift too early on those drives, and doing the math, it seems unlikely to collect only 1-3 ignitions that way.

I've read a few other accounts of folks who report similar observations. I think cars with increased boost over stock can hit the stock limiter hard enough to still record some Range 2's.

Kevinmacd

Well according to the link in my post rev 2s dont happen until 7250, hard to believe you would not see 500 increase in revs! Maybe the info in the link is wrong.

manimal

That's true, and part of why I feel obligated to share my experience. Something can't be right.

wm711

Thanks for the information. The most recent over revs both 1 and 2, were recorded within the past couple hours. Nice test drive by someone...