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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E36 M3 (1995-1999)

E36 M3 (1995-1999)

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  #1  
Old 05-17-2012, 04:09 PM
j0rn3z j0rn3z is offline
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Location: Alabama
 
Join Date: May 2012
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Mein Auto: 1995 M3
New to the M3 game and I have a few questions

So I just got my first M3 the other day, its a 1995 M3 and I absolutely love it. I But I noticed earlier it felt like I was speeding but my speedometer said I was doing the speedlimit, so I cut on my gps and it showed to be about 8mph off. That being said, I decided to take it to redline and see what it does, and the rev limiter hit at 6000 rpms and from what i've read its not until 6,500 on a stock chip in first gear. The car does have a bigger tire size, will that cause my RPM and MPH to be off? If not, what are some things I can do to fix this? Ive calibrated my gauges earlier and it did not help. Any help is appreciated.
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  #2  
Old 05-17-2012, 04:57 PM
ARM3N ARM3N is offline
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Location: SoCal
 
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Mein Auto: E36 M3
well the stock size is 235/40/17
whats the "bigger" size on now?
this website can tell you if the tires are causing a change in your speedometer reading and if its more or less.

http://www.miata.net/garage/tirecalcold.html

hope that helps
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  #3  
Old 05-17-2012, 05:04 PM
j0rn3z j0rn3z is offline
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Location: Alabama
 
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Mein Auto: 1995 M3
Its a 235/45/17. Any idea why my gauge cluster would say my redline is at 6?

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  #4  
Old 05-18-2012, 12:09 AM
j0rn3z j0rn3z is offline
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Location: Alabama
 
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Mein Auto: 1995 M3
Well I recalibrated my gauges again, everything is dead on now

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  #5  
Old 05-18-2012, 07:31 AM
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X3-terrestrial X3-terrestrial is offline
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Mein Auto: '05 X3, '95 M3, '89 MkI
Quote:
Originally Posted by j0rn3z View Post
Well I recalibrated my gauges again, everything is dead on now

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How'd you do that?
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  #6  
Old 05-18-2012, 09:00 AM
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ECSTuning ECSTuning is offline
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Glad you got it sorted. The tire sizes will effect the speedometer slightly, but not the tach.
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  #7  
Old 10-25-2012, 09:14 PM
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damalex damalex is offline
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Mein Auto: 89 E30
I seen a thing on YouTube where you can calibrate the cluster you just hold the trip reset down as you turn the key on an they reset works on OBD2 not sure about OBD1
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