1990 M20 325 flywheel, what and where
Moderator: martauto
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jo325
- E30 Zone Newbie

- Posts: 11
- Joined: Thu Jan 28, 2016 11:00 pm
Hi guys. I've been looking about for a lightened flywheel for the motor and have read that not to go for anything below 6kg. Its a road car and will be rarely on a track. Just looking to increase performance a bit and get it ro rev up quicker. Any taughts what and where to go for. Thanks in advance.
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jmc330i
- Engaged to the E30 Zone

- Posts: 6621
- Joined: Mon Jan 10, 2005 11:00 pm
- Location: Somerset
Just get a standard one lightened. Think mine is about 6.5kg.
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
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maggspower
- Turbo Farmer Tractor Driver
- Posts: 2376
- Joined: Wed Oct 12, 2005 11:00 pm
- Location: Nowhere near South Wales, ok butt
Your current one can be lightened.
6 cylinder cars are largely unaffected by the weight of the flywheel. You may need a few more revs to pull of, but the tales of lumpy idle and losing torque are bullshit.

It need to be balanced after.
Pm me if you would like it done, its a very good mod
6 cylinder cars are largely unaffected by the weight of the flywheel. You may need a few more revs to pull of, but the tales of lumpy idle and losing torque are bullshit.

It need to be balanced after.
Pm me if you would like it done, its a very good mod
Contact: theengineshedonline@gmail.com
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jo325
- E30 Zone Newbie

- Posts: 11
- Joined: Thu Jan 28, 2016 11:00 pm
Cheers Maggspower. PM sent
@ jmc330i how do you find the flywheel works in the car???
@ jmc330i how do you find the flywheel works in the car???
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jmc330i
- Engaged to the E30 Zone

- Posts: 6621
- Joined: Mon Jan 10, 2005 11:00 pm
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Ah sorry dude, mine is fitted to a 4cyl M44 engine.
Byron (Maggspower) doesn't know it yet, but he'll be lightening another one for my M20 when I start work on it
Byron (Maggspower) doesn't know it yet, but he'll be lightening another one for my M20 when I start work on it
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
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reggid
- E30 Zone Squatter

- Posts: 1982
- Joined: Mon Jul 11, 2005 11:00 pm
- Location: Oz
i have lightened OEM FW 12-13lb and with decent cam you can still use A/C and drive in peak hr traffic without fear of stalling on a good running specimen. i wouldn't go lighter as chances are it will chatter worse and on a smaller engine it may be a little more sensitive due to the smaller firing pulses.
E30 325is with M20B31
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jo325
- E30 Zone Newbie

- Posts: 11
- Joined: Thu Jan 28, 2016 11:00 pm
I dont have AC on the car but I have had clutch and flywheel combos on other cars that were a pain in the ass in traffic and certainly want to avoid that again. So what kind of price you after for it? Also im in Ireland...
