Differential for drifting

All the info you need to race E30's

Moderator: martauto

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pipework
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Wed May 09, 2012 8:40 pm

hi, im thinking of going to a few DWYB days in the summer. is it better to splash out and get a lsd or just drag the welder out.
love to hear peoples opinions, thanks.
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redcar
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Wed May 09, 2012 8:49 pm

I think that a welder may be a better option for drifting, compared to a 20 yr old e30 LSD.

Unless of course it's a rebuilt LSD with additional clutch packs and modified ramp angles :cool:

What engine do you have in your car?
pipework
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Wed May 09, 2012 8:55 pm

its only a 1.8 m40 engine but im looking for something a bit more powerful soon. after looking into it a bit more im also thinking welder
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redcar
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Wed May 09, 2012 8:57 pm

pipework wrote:its only a 1.8 m40 engine but im looking for something a bit more powerful soon. after looking into it a bit more im also thinking welder
Ideally you would want a medium case welder, but it might be difficult to find a medium case in a suitable ratio for the m40 to drift (ie. above 4).
I don't know what it's like to drift an m40 e30 with a low ratio, but i presume it would be easier with a higher ratio diff in.
Barx325i
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Wed May 09, 2012 8:59 pm

Depends if you want 100% lock on the over run. I've never driven a welded diff, bit I imagine great fun, not without its pitfalls..

As for the LSD, you will want it freshened up & the ramp angles shallowed off. More expensive, but probably a much better tool
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rob0r
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Wed May 09, 2012 10:51 pm

Just weld the current small diff, you won't break it with a 1.8
pipework
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Thu May 10, 2012 8:12 pm

welding it is!!
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