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DME report contemplation

 
Old 07-10-2019, 08:10 PM
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rvmhn
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Default DME report contemplation

Hi All,

Looking at a 997TT with ~19k miles on the ODO. The car is tuned with light bolt-ons. I am concerned about the Range 5 and 6 counts. Can anyone please provide further insight?

I did a calculation with the mileage and run hours, and it comes out to around 24 mph, so that seems reasonable... IS this an absolute no go due to the range 6 over rev? Otherwise, the car is in fantastic condition.



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Old 07-10-2019, 08:18 PM
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Bxstr
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The 1 over rev in range 6 may just be a fluke. The range 5 is slightly concerning, but if everything else checks out you should be ok, just negotiate accordingly. Also a leak down test may not be a bad idea on this car. Get a PPI and if everything else checks out, go for it.

Also, highly recommend this video.

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Old 07-10-2019, 08:24 PM
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I suspect both the level 5 and 6 are bogus. 3 engine revolutions on level 4 is also meaningless. Nearly impossible to get that combination of Rev counts over that rpm range, IMO. Level 3 is nothing terrible, but given they are recent events a leak down wouldn't be a bad idea in the name of being overly cautious.
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Old 07-11-2019, 12:19 PM
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If the car was tuned, does that typically raise the rpm limits and also the over-rev ranges or do they remain the same as oem ranges?
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Old 07-11-2019, 12:35 PM
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ECU counts revs in preset/ given ranges with or without a tune.
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Old 07-11-2019, 12:47 PM
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DME reports and concerns are way overrated and are only used by stealerships to deny service. If you like the car and the PPI is good I wouldn't be worried at all.
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Old 07-11-2019, 01:38 PM
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Agree with the other comments. 5 and 6 are most likely glitches. Even range 4 would be only 3 revolutions of the crank. Nothing to be concerned about.
Raising the rev limiter has no impact on the rev ranges. They are fixed values in the DME. This is why you often see cars with tunes max out range 1. The raised limiter lets the car go into range 1 before way before it kicks in.
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Old Yesterday, 07:51 PM
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That guy is my hero! also have the same name.

"might break the rennlist server" HAHA


Dont worry about them too much. Like he said if you like the car and it checks out buy it!
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Old Yesterday, 09:44 PM
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Yep, all noise.
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