Bmw e36 diff, gearbox combination
Discussion
Mates lad runs 3.73 & the 5 speed & reckons its spot on, unless you were doing vln. I've only run 3.15 & 3.23 on the 5 speed personally & better than stock 2.93 naturally but not ideal.
Are others who run 3.91 & 3.64 is popular.
Either way really need the increased rev limiter when you remap to suit m50 inlet.
Are others who run 3.91 & 3.64 is popular.
Either way really need the increased rev limiter when you remap to suit m50 inlet.
Edited by iguana on Monday 27th June 08:48
We are running the 5speed ZF with a 3.23 final drive, at 7200k rpm the calculator says 165mph. Provably a tad too long but ours is a track car thats being driven to the events so we had to conpromise. Massive improvement over OEM though.
Calculate your own http://www.endtuning.com/gearratios/
Also highly recommended BMW tuner from various people here and other forums.
I would guess you will be looking for 130mph top speed for UK tracks.
Good luck
Calculate your own http://www.endtuning.com/gearratios/
Also highly recommended BMW tuner from various people here and other forums.
I would guess you will be looking for 130mph top speed for UK tracks.
Good luck
I've ran 3.43 and 3.64, with the 5spd ZF. Its not a 328 but same platform.
The 3.43 gave a 140mph limiter in 5th (on 16s, 7200rpm ish), and the only time that was hit was at Spa.
I changed to 17s, which increased that top speed slightly as you would expect, so when I built the Kaaz LSD for it, I switched the ratio to 3.64, bringing the top speed back down to what it was on the 16s.
If its UK circuits only then going shorter again would be fine, but at Spa etc with any sort of power you'd be hitting the limit in 5th often.
The 3.43 gave a 140mph limiter in 5th (on 16s, 7200rpm ish), and the only time that was hit was at Spa.
I changed to 17s, which increased that top speed slightly as you would expect, so when I built the Kaaz LSD for it, I switched the ratio to 3.64, bringing the top speed back down to what it was on the 16s.
If its UK circuits only then going shorter again would be fine, but at Spa etc with any sort of power you'd be hitting the limit in 5th often.
What series will you be racing in?
Standard 5 sped box is fine for 328, and i run a 3.91, top speed of approx 115mph standard limiter, and 124mph with a 7000rpm limiter, can get about 129mph if i run no spoiler aswell!
The only track in the UK I hit the limiter on is Thruxton, (about 100yrds from braking point) although its very close at Silverstone and Snetterton, and you get bored when sat on the limiter at Spa, as there is still plenty of straight left!
Standard 5 sped box is fine for 328, and i run a 3.91, top speed of approx 115mph standard limiter, and 124mph with a 7000rpm limiter, can get about 129mph if i run no spoiler aswell!
The only track in the UK I hit the limiter on is Thruxton, (about 100yrds from braking point) although its very close at Silverstone and Snetterton, and you get bored when sat on the limiter at Spa, as there is still plenty of straight left!
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