diff ratios

Post Mon May 01, 2006 12:04 am

Hi guys, this is my second tech question today so i'll keep it short...

what diff ratios can we get for our e30's as factory spec?
I know theres 3.91 / 3.73 / 3.64 / 4.1 / 4.33, but what other ones are there? Didnt the early 323's come with a 3.45 diff?

Thanks people

Post Mon May 01, 2006 12:11 am

There was a 3.46 diff.
M3 was on either 3.25 or 3.15.
Wasn't there a 4.27?

Post Mon May 01, 2006 12:16 am

4.27 on 318i cabbys yes

find me a slipper one of them an il shake you hand (and buy it off you)

Post Mon May 01, 2006 12:20 am

4.27 was on some 320's?

3.46 is 320iS i think

thats gotta be most isn't it? apart from 316 autos and other oddball cars

how about a 325iX they had two different ratio diffs for front and rear, i think the front was 3.91

Post Mon May 01, 2006 3:35 pm

Dan wrote:4.27 on 318i cabbys yes

Very true, Thats what I found on my Convertible!

Post Mon May 01, 2006 5:18 pm

http://wp1016621.wp027.webpack.hosteuro ... f00023.htm

Post Mon May 01, 2006 5:22 pm

4,45
4,27
4,10
3,91
3,73
3,64
3,46
3,23
3,25
3,15
2,93
2,79

Post Mon May 01, 2006 5:33 pm

whats the best one to have how can you judge

Post Mon May 01, 2006 5:52 pm

4,10 on 6's and 4,27 on 4's I think is the best bet but then your gears run out quicker ya accelerate faster though

Post Tue May 02, 2006 11:21 pm

I have just stripped a 318is for parts to convert my 318i cab. i took the diff off tonight and the tag says its a 4.10. i have had 125mph from my M40 without hitting the limiter but i dont think it was far off. what can i expect from a 4.10 diff when the M42 goes in?