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Over rev report reading

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Old 01-07-2015, 06:34 AM
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delanobe
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Default Over rev report reading

Hi Guys,

As some here already predicted the love affair with the R8 would be very short.
Very nice car, does everything very good but for me a bit sterile.

As a result my garage will be empty in a few days so the hunt for a new car begins.

I found a GT3 MK2 Clubsport that looks interesting but I need to know if the dme report is ok.

Thanks

Last edited by delanobe; 01-12-2015 at 08:34 AM.
Old 01-07-2015, 07:55 AM
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scooter993
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range one is fine, no worries, there were only 43 ignitions as well. that's like 7 rotations of the motor.
Old 01-07-2015, 08:25 AM
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Yannick-HST
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Looks great! Nothing to worry about... PM me if you have further questions regarding the
Translation of other documents from german to english/ french.
Old 01-07-2015, 08:54 AM
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delanobe
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Hi Yannick!

Thanks for the reply.

This is the dme from another car I'm looking at.

Last edited by delanobe; 01-12-2015 at 08:34 AM.
Old 01-07-2015, 12:49 PM
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dantzig
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Agree with the above.

It's actually 14 revs (3 ignitions per revolution), which equates to:

(43 ignitions)*(60 sec/min)/(3 ignitions/rev)/(9000 rpm) = 0.1 sec

Clearly, that is one incident. It occurred about 35 engine hours in the past, at 808.5 hrs, where current is 842.6

Nothing to worry about.
Old 01-07-2015, 04:48 PM
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madmurdock
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Not to highjack the thread, but what about the attached DME. This if for a friends car who is concerned about the stage 2 over revs.

Old 01-07-2015, 07:41 PM
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dantzig
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Originally Posted by madmurdock
Not to highjack the thread, but what about the attached DME. This if for a friends car who is concerned about the stage 2 over revs.

Again, a single event. Ranges are cumulative, so this represents about 0.5 seconds. It was recent - 5 engine hours in the past. Maybe a potential buyer taking a test drive?
Old 01-07-2015, 07:59 PM
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RajDatta
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Just curious, which range is the one to look out for?
Old 01-07-2015, 08:24 PM
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surlynkid
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Originally Posted by dantzig
Agree with the above. It's actually 14 revs (3 ignitions per revolution), which equates to: (43 ignitions)*(60 sec/min)/(3 ignitions/rev)/(9000 rpm) = 0.1 sec Clearly, that is one incident. It occurred about 35 engine hours in the past, at 808.5 hrs, where current is 842.6 Nothing to worry about.
That is the math? So my 900 type 1's is just 2 seconds?
Old 01-07-2015, 08:43 PM
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madmurdock
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Originally Posted by dantzig
Again, a single event. Ranges are cumulative, so this represents about 0.5 seconds. It was recent - 5 engine hours in the past. Maybe a potential buyer taking a test drive?
Could be and might actually be me. I did test drive the car a few weeks ago. Owner did say he hasn't driven the car in anger.. Whatever that means.
Old 01-07-2015, 10:09 PM
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RajDatta
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Can someone please read this for me.
thx

Old 01-07-2015, 10:17 PM
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LexVan
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Originally Posted by 968TurboS
Can someone please read this for me. thx
Car has about 1,400 hours on it. At about the 105 hour there were 24 range 1 over revs. You're fine.

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Old 01-08-2015, 01:06 AM
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kosmo
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Originally Posted by 968TurboS
Just curious, which range is the one to look out for?
4-6
Old 01-08-2015, 01:08 PM
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RajDatta
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Originally Posted by LexVan
Car has about 1,400 hours on it. At about the 105 hour there were 24 range 1 over revs. You're fine.

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Thanks Lex. Could you please elaborate further what range 1 would imply?
Also, what is the formula to figure all this out.

Thanks in advance.
Old 01-08-2015, 01:17 PM
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ilko
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Range 1 is between 8,500 and 9,200 RPM.
Range 2 is between 9,200 and 9,400 RPM.
Range 3 is between 9,400 and 9,600 RPM.
Range 4 is between 9,600 and 10,000 RPM.
Range 5 is between 10,000 and 11,000 RPM.
Range 6 is over 11,000 RPM.

Raj - YOU. ARE. FINE.



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