Interpretation of Rev Range printout

[Richie200]

Could someone please enlighten me as to exactly what the printout below means


Does it mean:
1). A single RR1 event at 765.4H for 34 revolutions.
2). 34x RR1 occurrences of which the last one occurred at 765.4H.
3). None of the above (if so any guidance much appreciated).

Also if you are driving in the manner below would this register as a RR?

http://vid1379.photobucket.com/albums/ah147/richar...

[Alpinestars]

Looks like the last incident happened within the last 1.000 miles or so.

That level of RR 1 activity is nothing to worry about.

It's possible your driving there would have caused it. Did you hit the limiter?

[Pugley]

Number 2
Completely normal, hit rev limiter at rev range 1 for recorded number of revolutions. That's what its designed to do!

[dazren]

Total of 34 Range 1 ignitions in the life of the engine. The last Range 1 ignition was at 765.4 engine hours (24 engine hours ago).

I wouldn't have an issue with buying a car with this readout.

[thegoose]

dazren said:

Total of 34 Range 1 ignitions in the life of the engine. The last Range 1 ignition was at 765.4 engine hours (24 engine hours ago).

I wouldn't have an issue with buying a car with this readout.

This ^^^, and there are 3 ignitions per revolution of the engine, so in 765.4 hours the engine was at the redline (assuming anything above 7000rpm) for under 1/10th of a second.

[jimmy p]

thegoose said:

This ^^^, and there are 3 ignitions per revolution of the engine, so in 765.4 hours the engine was at the redline (assuming anything above 7000rpm) for under 1/10th of a second.

Is that actually possible, to hit the limiter for less than a tenth of a second???

[Richie200]

Many thanks for the advice guys. Could someone please let me know if you are driving in the manner below would this register as a RR?

http://vid1379.photobucket.com/albums/ah147/richar...
[/quote]

[Cunno]

No your clip shouldn't of triggered anything. Doesn't even sound like you hit the limiter. I thought over revs could only be caused on down shifts were the limiter can't save you?

[thegoose]

jimmy p said:

Is that actually possible, to hit the limiter for less than a tenth of a second???

Any reason why it shouldn't be?

[Richie200]

Alpinestars said:

Looks like the last incident happened within the last 1.000 miles or so.

That level of RR 1 activity is nothing to worry about.

It's possible your driving there would have caused it. Did you hit the limiter?

Many thanks Alpinestars. The printout RR report was done as I purchased the car right in front of me in the showroom. The little video I took was about 30mins into my first drive on the way home after purchase. I was just concerned that if I drive up to the rev limit in gear (as per the linked video) would this cause an RR. In the video you can see a light appear on the rev counter just before the 3rd to 4th gear change. I was worried that when this light appears on the dash that maybe a RR has occurred. If this is the case then in future I will change up 200rpm or so earlier.

[Alpinestars]

The light would not cause RR activity. I sold an RS a couple of years ago and only once hit the limiter, but it didnt record any RR activity. Conversely, my ex GT2 used to log RR activity for fun! And I never ever missed a change.

[Richie200]

I have heard this a few times ref the GT2; something along the lines of at the point of engaging the clutch the load from the transmission is removed causing the engine to momentarily increase in rpm; a bit surprised that Porsche deem this worthy as logging in the ECU.