M50 Single Vanos - Another Gearbox question

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Ianb
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Thu Feb 09, 2012 1:30 pm

I purchased an old and very very rusty E30 off here over a year ago now to canibalise for it's M50 Conversion and consquently I'm not 100% sure what I've got ( although the car was running i couldn't drive it through the gears as it only had one brake caliper at the front with a hose clamp on the other !).
I've stripped it all and got it ready to fit in my shell however, the gearbox is a ZF and Has an orange sticker on saying ATF only - Could this be an E30 box or is it an E36, does anybody know how i find out ?
It does have Nos on it but stupidly I forgot to write them down!
Thanks

Ian
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Thu Feb 09, 2012 2:15 pm

ZF 'box was fitted to E34 and E36 with M50 engine.

Be aware that you will need a diff with a ratio around the 3:1 mark to get a reasonable engine speed/road speed ratio.
E30 M3,for exanple,is 3.25:1..but try finding one at sensible money!
Some E28's have the medium case diff in a usable ratio,but will need E30 type driveshaft flanges and rear cover.

The difference with the ZF 'box is that it has a direct drive 5th gear,the Getrang 'boxes fitted to E30 have a direct 4th,with an 'overdrive' 5th gear.
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Jhonno
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Thu Feb 09, 2012 2:23 pm

daimlerman wrote:ZF 'box was fitted to E34 and E36 with M50 engine.

Be aware that you will need a diff with a ratio around the 3:1 mark to get a reasonable engine speed/road speed ratio.
E30 M3,for exanple,is 3.25:1..but try finding one at sensible money!
Some E28's have the medium case diff in a usable ratio,but will need E30 type driveshaft flanges and rear cover.

The difference with the ZF 'box is that it has a direct drive 5th gear,the Getrag 'boxes fitted to E30 have a direct 4th,with an 'overdrive' 5th gear.
ZF box was mainly a 328i/3.0 M3 fitment.. Although *some* late 323i's seem to have come with them. The M50 used a Getrag box.
Got cable ties? Get diffin..

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daimlerman
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Thu Feb 09, 2012 2:37 pm

Jhonno wrote:
daimlerman wrote:ZF 'box was fitted to E34 and E36 with M50 engine.

Be aware that you will need a diff with a ratio around the 3:1 mark to get a reasonable engine speed/road speed ratio.
E30 M3,for exanple,is 3.25:1..but try finding one at sensible money!
Some E28's have the medium case diff in a usable ratio,but will need E30 type driveshaft flanges and rear cover.

The difference with the ZF 'box is that it has a direct drive 5th gear,the Getrag 'boxes fitted to E30 have a direct 4th,with an 'overdrive' 5th gear.
ZF box was mainly a 328i/3.0 M3 fitment.. Although *some* late 323i's seem to have come with them. The M50 used a Getrang box.
My M50(1995 E34)came with a ZF 'box!
Jhonno
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Thu Feb 09, 2012 2:58 pm

Yup, a rare one!

The ZF is primarily the 328i/3.0 M3 box.
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

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Brianmoooore
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Thu Feb 09, 2012 8:51 pm

Getrag or ZF, if it has an ATF only sticker, I'm fairly sure it will be an E34/36 box with a direct fifth gear.
AFAIK, no manual E30 ever left the factory with ATF in its gearbox.
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