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E21 (1975 - 1983)

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Old 09-14-2013, 06:27 AM
Gruppe Zwei Gruppe Zwei is offline
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Location: Denmark
 
Join Date: Sep 2013
Posts: 5
Mein Auto: E21 320-6
E21 Rear axle ratio

Hello. I am new to this forum.

I signed up as i was hoping there would be some E21 experts to help with all my questions

I bought a E21 in May this year (my first) its a 320-6. Spend about 300 hours restoring it and i am not done yet, however i have gotten the car on the road a couple of weeks back.

The build thread is here if anyone has interest
http://www.bmwforums.info/bmw-projec...ica-build.html

Anyway, what i would like to ask is if there is any way to get the rear axle ratio different.

I believe its born with a 3,64 ratio and the tallest you can go is a 323i rear diff with a 3,45 ratio.

Problem is that when i am doing 120kph the rev counter says 3000 rpm. And i would love that to drop to around the 2500rpm mark to get a bit better milage.

Is it possible to mount the pumpkin from a E30 or something ?

Best regards
Ruben_a_
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