Hi, i know the recommended ratio for this box is 3.25 or thereabouts.
I have a 3.64 lsd at the moment and was going to leave it for now, as its mainly a track car being a little bit short isnt a problem. I do however drive it to the track and back so i dont want something horribly short!
Is the 3.64 unbearable with a 328i box? Does anyone know the revs/mph for this combination?
Thanks
shaun
3.64 diff with 328i box
Moderator: martauto
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Mikey_Boy
- E30 Zone Regular
- Posts: 996
- Joined: Sun Mar 16, 2008 11:00 pm
- Location: Cheshire - trying to avoid the bling!
Hi Shaun,
I have a 262 dogleg box (which is also a 1:1 5th) with a 3.64 diff on my track car.. I have woprked out it is 132mph at 7000rpm in 5th, which equates to about 4200 rpm at a genuine 80mph.
I find it OK driving to and from the track - some might find 4k-ish rpm at 80mph unbearable, but... for pretty much all tracks in the UK a 3.64 might actually be a touch long...!
I just limit myself to 70 - 75mph on motorways..
Hope that helps!
Cheers,
Mike
I have a 262 dogleg box (which is also a 1:1 5th) with a 3.64 diff on my track car.. I have woprked out it is 132mph at 7000rpm in 5th, which equates to about 4200 rpm at a genuine 80mph.
I find it OK driving to and from the track - some might find 4k-ish rpm at 80mph unbearable, but... for pretty much all tracks in the UK a 3.64 might actually be a touch long...!
I just limit myself to 70 - 75mph on motorways..
Hope that helps!
Cheers,
Mike
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shaun_89
- E30 Zone Newbie
- Posts: 182
- Joined: Thu Sep 23, 2010 11:00 pm
Thats brilliant thanks 
I do 70mph or slightly less on the motorway anyways so i can live with that. Saves me getting another diff.
I do 70mph or slightly less on the motorway anyways so i can live with that. Saves me getting another diff.