Over Revs - yet again!
#1
Rennlist Member
Thread Starter
Over Revs - yet again!
I know there are a lot of threads on Over Revs but I’m still not clear so I’d appreciate the wisdom of this group. I’m seriously looking at a 2018 manual GT-3 with 2500 mi with the following from a DME report:
Range. #Ignitions. Operating Time
1. 108. 3084 minutes
2. 32. 2262 minutes
3. 9. 1002 minutes
4-6. 0. 0 minutes
Also notes max engine speed reading 9262 rpm. I don’t see anywhere total hours driven.
Thanks in advance for your comments!
Range. #Ignitions. Operating Time
1. 108. 3084 minutes
2. 32. 2262 minutes
3. 9. 1002 minutes
4-6. 0. 0 minutes
Also notes max engine speed reading 9262 rpm. I don’t see anywhere total hours driven.
Thanks in advance for your comments!
#2
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That's fine.
#4
Rennlist Member
The over revs 1-3 by themselves are not too bad. More concerning is that this is a 2018 with only 2500 miles with this many over revs so early in it's life. And 9262 rpms at least once. What the heck was the driver doing? And apparently doing it repeatedly? Me, I would walk away.
Last edited by Palting; 11-27-2018 at 02:42 PM.
#5
Walk, too many good cars. Over revs have raised their ugly head again with the manual trans cars. I can't wait to hear the cry from a money shift.
#6
Range 3 over revs at 16 hours on the engine? What's the total time at now? I don't think Range 3's are just bumping the red-line. Probably didn't damage the engine but I would shy away.
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#9
Addict
Rennlist Member
Rennlist Member
The over revs 1-3 by themselves are not too bad. More concerning is that this is a 2018 with only 2500 miles with this many over revs so early in it's life. And 9262 rpms at least once. What the heck was the driver doing? And apparently doing it repeatedly? Me, I would walk away.
If it is a missed shift, it is a very minor one (less than 3% over redline) and probably did nothing. If you miss a shift going from 3rd to 4th at redline and select 2nd by mistake, you get something over 40% (over 12,600 rpm) beyond redline...
EDIT: I guess there were 3 instances of over-revs from the different number of minutes (but seems like at least the first two were just bumping the limiter - very common and not harmful). Probably one instance of Range 3 at 16.7 hours of driving. If averaging 60 miles per hour, then this is 1000 miles (and more than the recommended break-in of 930 miles under 7,000 rpm in the Euro booklet).
Last edited by GrantG; 11-27-2018 at 07:06 PM.
#10
Rennlist Member
The car is fine, I just don’t like the idea of a 2500 mile car with over revs and I don’t even believe in breaking in a car...
I tracked many manuals into the rev limiter (3rd gear and up) and zero overrevs...
I tracked many manuals into the rev limiter (3rd gear and up) and zero overrevs...
#11
Nordschleife Master
Perception always trumps reality.
Emotions overrule facts.
The report is fine if you are ok with reality and facts.
The report is not fine if you are run by perception and emotions
Emotions overrule facts.
The report is fine if you are ok with reality and facts.
The report is not fine if you are run by perception and emotions
#12
Race Director
#13
Burning Brakes
#14
Rennlist Member
+1. Car is fine.
On a side note, this motor revs so fast up top, on track it's almost impossible NOT to bounce of the limiter from time to time on 2-3 or 3-4 upshifts, unless you are purposely short shifting. For those who somehow think this hurts the car, again, that is not the case.
I used to bounce off the rev-limiter at Mid-O coming out of the Keyhole in 2nd gear in 7.1RS. Ahh, good memories......
On a side note, this motor revs so fast up top, on track it's almost impossible NOT to bounce of the limiter from time to time on 2-3 or 3-4 upshifts, unless you are purposely short shifting. For those who somehow think this hurts the car, again, that is not the case.
I used to bounce off the rev-limiter at Mid-O coming out of the Keyhole in 2nd gear in 7.1RS. Ahh, good memories......