Gearbox!!
Moderator: martauto
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sniffmydiff
- E30 Zone Newbie

- Posts: 7
- Joined: Mon Mar 10, 2008 11:00 pm
hi i have a 1987 325i sport, im changeing it to a e34 525i m50 engine, will this bolt on to my gearbox, if so what flywheel & clutch do i use. thanks
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suzie650
- E30 Zone Regular

- Posts: 460
- Joined: Sat Oct 21, 2006 11:00 pm
- Location: CH
Yes it will, but you will have to twist the linkage slightly (the e34 box has got the same bolt pattern, but runs at something like 15° more.
Both flywheel fit, but I'd keep your current one as it is muich lighter. In this case, you also need to keep the e30 starter motor.
Both flywheel fit, but I'd keep your current one as it is muich lighter. In this case, you also need to keep the e30 starter motor.
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jmc330i
- Engaged to the E30 Zone

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- Joined: Mon Jan 10, 2005 11:00 pm
- Location: Somerset
I know the M20 flywheel bolts up ok, but doesnt it need some machining to fit the M50?
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
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march109
- Engaged to the E30 Zone

- Posts: 6632
- Joined: Sun Aug 20, 2006 11:00 pm
- Location: Bournemouth
6-7mm off the face IIRC
EDIT 6mm according to my notes.
EDIT 6mm according to my notes.
325i Tech 1 Touring, breaking.
2.5 high comp. M20, 3.64 LSD, Fully undersealed, Spax springs & Bilstein shocks, s/s exhaust, Alpina rep wheels and more.
2.5 high comp. M20, 3.64 LSD, Fully undersealed, Spax springs & Bilstein shocks, s/s exhaust, Alpina rep wheels and more.
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suzie650
- E30 Zone Regular

- Posts: 460
- Joined: Sat Oct 21, 2006 11:00 pm
- Location: CH
It seems to depend. I know ofM20 flywheel that fitted straight away. And if they dont, you can grind a little bit off the bloc casting / bolts that are in the way - No problem at all and easier than machining a flywheel (no need for balancing)
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sniffmydiff
- E30 Zone Newbie

- Posts: 7
- Joined: Mon Mar 10, 2008 11:00 pm
my e34 engine is a auto that wont make any differance, also looking & buying a Exhaust system & coilover what the best to get as im worryied about it restricting the m50 as e30 scorpions etc.. look abit small bore.
