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-   -   Over-rev report. Thoughts? (https://rennlist.com/forums/997-forum/1102934-over-rev-report-thoughts.html)

Serge997 10-10-2018 06:38 PM

Over-rev report. Thoughts?
 
https://cimg4.ibsrv.net/gimg/rennlis...d025d43a5.jpeg
Hi to all? Thoughts about this report? 2017-4S with PDK. 21,000 miles. I don’t have the total operating hours but I’m guessing the hits on #1/2 are pretty recent.

Also, who do I read the “A205” Distance Calculated in control unit? Var shows 21,000 in odometer.

Skwerl 10-10-2018 06:58 PM

Even if the 1s and 2s are recent, they're extremely few in number and aren't really harmful anyway. That car has been driven gently.

nzskater 10-10-2018 07:19 PM

Looks absolutely fine, range 1 & 2 can be ignored for the most part. Great looking car on paper.

Tj40 10-10-2018 09:48 PM

Looks great, range 1 and 2 are below the redline so you are looking good!!

cosm3os 10-10-2018 10:13 PM

Someone needs to drive that thing!

thxbuff2001 10-10-2018 11:01 PM

This is a pdk, you dont even need to do a dme report on it. Only manual transmission.

mikemessi 10-11-2018 11:19 AM

The DME of 33000 km is equal to 21000 mi.

Fahrer 10-11-2018 03:39 PM

Those over-revs are not a problem at all. A summary like that indicates that the rev limiter was hit hard one or maybe two times. This is not likely from bad down-shifts. Still, I am not sure how this happens with an automatic (PDK or other).

LexVan 10-11-2018 03:57 PM


Originally Posted by thxbuff2001
This is a pdk, you dont even need to do a dme report on it. Only manual transmission.

Over revs are not the only reason to do a DME report during the used car buying process. It's also a good way to make assumptions and verify mileage.

This particular report means very little, since we don't know total operating hours.

The over revs in range one and range two are no issue.

But why is the average miles per hour less than 20? That is very very low. That means something. But what does it mean exactly?

mikemessi 10-11-2018 05:05 PM


Originally Posted by LexVan (Post 15353699)
Over revs are not the only reason to do a DME report during the used car buying process. It's also a good way to make assumptions and verify mileage.

This particular report means very little, since we don't know total operating hours.

The over revs in range one and range two are no issue.

But why is the average miles per hour less than 20? That is very very low. That means something. But what does it mean exactly?

I'm confused. How do we know avg speed if we don't know total hours?

Quadcammer 10-11-2018 05:15 PM


Originally Posted by mikemessi (Post 15353905)
I'm confused. How do we know avg speed if we don't know total hours?

well we know the car has done at least 1081 hours, so if its got 21k miles, the average speed can't be over 20mph.

Tj40 10-11-2018 07:03 PM


Originally Posted by Quadcammer (Post 15353932)
well we know the car has done at least 1081 hours, so if its got 21k miles, the average speed can't be over 20mph.

These numbers might be low due to city driving - remember operating hours include hours sat idiling in traffic etc so this number is going to be lower than you might expect, having said that 20 mph does seem quite low :-) I'm just not sure how much there is to infer from this piece of data??

mike cap 10-11-2018 11:37 PM

Two comments.....

You can’t overrev a PDK car so the report is meaningless.

If the car was mostly city driven 20’ish mph average speed is believable. My DD records average speed and with a decent % of highway content it’s still never more than 24 moh.

thxbuff2001 10-12-2018 03:31 AM


Originally Posted by mike cap (Post 15354620)
Two comments.....

You can’t overrev a PDK car so the report is meaningless.

If the car was mostly city driven 20’ish mph average speed is believable. My DD records average speed and with a decent % of highway content it’s still never more than 24 moh.


Exactly. Dont try to start something that you may end up feeling sorry for. Checking an overrev on an automatic/pdk.

thxbuff2001 10-12-2018 03:37 AM


Originally Posted by LexVan (Post 15353699)
Over revs are not the only reason to do a DME report during the used car buying process. It's also a good way to make assumptions and verify mileage.

This particular report means very little, since we don't know total operating hours.

The over revs in range one and range two are no issue.

But why is the average miles per hour less than 20? That is very very low. That means something. But what does it mean exactly?

The title is checking an overev, so why do you anyone need an overev report on an automatic/pdk.




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