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Old 04-26-2016, 01:56 PM   #1
Rennzenn
 
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over revs???

Just wondering what the durametric experts can tell me about this report. 2000 Box S 181,xxx miles.


Bosch Digital Motor Electronics Motronic 7.2
Information
Number of ignitions range 1 41505 / 3857.6h
Number of ignitions range 2 16373 / 4992.9h
Operating hours counter 5157.3
Vehicle Identification Number
Data version 0041570264503723
Type ID DME control unit 986SUS01
Order type 986320
Country code C2
Transmission type
Transmission number G8620
Interior equipment AJ
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Old 04-26-2016, 02:27 PM   #2
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are you running an aftermarket flash with increased rev limiter?!?!?

my understanding is that range 1 is bounces of the rev limiter, range 2 is everything over the rev limiter (ie, bad shifts).

note that 7.8 cars have 6 ranges.

the hours are the last time you triggered the event. so, your car has 5157 operating hours, and your last event was at 4992 or 165 hours ago.

flogging a car in typical fashion should have the range 1 ignition hours pretty similar to the operating hours counter if you like to hit the limiter. on your car the last limiter hit was 1299 hours ago which seems odd given the multiple more recent range 2 hits - this is what makes me think you've increased your redline (perhaps 1300 operating hours ago?)?

note that a car at 8000 rpm is going to have 8000 rpm / 60 seconds = 133 rotations per second / 2 = 67 ignitions per second. you have over 16,000.

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Old 04-26-2016, 03:40 PM   #3
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Yes, the car has the Softronic tune. I think it bumped redline to 7800. I did that about 5 years ago. Thanks for the info!
Any others??
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Old 04-26-2016, 07:47 PM   #4
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That is a lot of range 2 overrevs!

The big problem is you have no way of knowing just how high the overrev was
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Old 04-26-2016, 08:54 PM   #5
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ps, at 181k miles and 5157 operating hours, you have averaged 35 mph.

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