Hi All,

I'm looking to unashamedly tap in the knowledge base here lads if ye don't mind!!

I'm working on my brothers rallycar currently an BMW E30 M3 rep running an S50 M3 engine with race upgrades, the time has come for upgrading the standard zf box from the S50 to a sequential motorsport box.

But I need a detachable bellhousing that fits the bolt pattern of the S50b30 engine (m3 engine). Gearbox bolt pattern isn't important as it will have to be modified anyway to take the new sequential box.

From research I've done all the M and S50 series 6 cylinder engine ranges from BMW have the same engine bolt pattern. So all the 525,528, 328, 728 etc have the right bolt pattern.

So can anyone answer me this, what gearboxes or cars came with a detachable Bellhousing in the above engine bolt pattern ??

Thanks in advance!

Gary

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