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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 07-14-2014, 12:04 PM
macindude macindude is offline
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Location: Ames, Iowa
 
Join Date: Dec 2005
Posts: 4
Mein Auto: 2000 528iT/5, 1988 325is
'95 M3 seems to lack low-end Torque

Hi all,

I just bought two 1995 M3's in roughish shape... Both cars have their plusses and minuses, and most issues I'll have no problem sorting on my own.

Both cars have Aftermarket exhaust systems and silly hot air intakes (unshielded cones).

The puzzle for me is that one car seems to make decent low end torque and the other car just doesn't. They are about the same past 3500 or 4000 RPM but one pulls noticeably harder from idle to the power-band.

I was told by the PO that the torquier car has a software tune, but my understanding is that the gains people experience from one-size-fits-all software tunes is mostly in the driver's head. Is it possible that software could account for this type of (very noticeable) difference?

Is it possible that this could be an issue with VANOS? What are the typical symptoms associated with a VANOS failure (I'm not getting any CEL)?

Any other ideas?
THANKS!!
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  #2  
Old 08-21-2014, 09:51 PM
Guam135i Guam135i is offline
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Location: Guam
 
Join Date: Nov 2011
Posts: 138
Mein Auto: 08 135i Coupe
[QUOTE=macindude;8462022

Is it possible that this could be an issue with VANOS? What are the typical symptoms associated with a VANOS failure (I'm not getting any CEL)?

Any other ideas?
THANKS!![/QUOTE]


same question here
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  #3  
Old 08-23-2014, 09:44 AM
Snowxpert Snowxpert is offline
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Location: Michigan USA
 
Join Date: Jan 2014
Posts: 34
Mein Auto: Bmw 325ix BMW M3
The vanos does not kick in until 3500 rpms so that is not the issue. Maybe it's coil packs and fresher spark plugs in one


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  #4  
Old 08-26-2014, 05:26 PM
bmw-mania bmw-mania is offline
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Location: California
 
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Mein Auto: BMW
wow!
helluva score.. I need to pick up a doppelgänger.

its called "maintenance"..
some get em.. some don't..

If its a "performance chip"..
It has a altered fuel map that will provide better off the line *feel*.

If you did a leak down test & compression you would probably notice some differences.
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