Author Topic: light weight flywheel (Read 6297 times)

318lotis · « **on:** July 22, 2009, 12:09:37 PM »

i have e30 318is having trouble finding light weight flywheel anybody have any good sources for a supplier?

1991 E30 M42 · « **Reply #1 on:** July 22, 2009, 02:09:28 PM »

Metric Mechanic, JB Racing, stock single mass, or M20 flywheel

318lotis · « **Reply #2 on:** July 22, 2009, 04:13:58 PM »

wow, metrick mechanic $850.00, thats alot of cash, can one just use a m20 part?

nickmpower · « **Reply #3 on:** July 22, 2009, 04:34:53 PM »

use a m20 flywheel, m20 clutch disk and pressure plate, and e21 323 throwout bearing, and you need to space the flywheel a tad

1991 E30 M42 · « **Reply #4 on:** July 22, 2009, 04:46:50 PM »

I know I didnt spend that much on my MM flywheel, but yes, an M20 flywheel would be very nice especially if you lighten it a bit.

JoeDellio · « **Reply #5 on:** July 22, 2009, 11:31:53 PM »

Quote from: nickmpower;75705

use a m20 flywheel, m20 clutch disk and pressure plate, and e21 323 throwout bearing, and you need to space the flywheel a tad

Can you please elaborate on the tad of spacing?

Im looking to do this sometime soon, like in 2 weeks when I pull my engine. And most important, this is good for the E36 also?

Lukis · « **Reply #6 on:** July 24, 2009, 07:37:05 PM »

The thing that was the most positiv with converting to my JBRacing flywheel was the downshifting at the track. The E36 is not that tail happy, so I would not spend a lot of money replaacing the flywheel on a E36.

monko141 · « **Reply #7 on:** July 25, 2009, 01:41:27 AM »

You will need a m20 starter also if you use an m20 flywheel.

carnurd · « **Reply #8 on:** July 25, 2009, 09:32:34 PM »

Have you tried looking at bimmerworld.com or turnermotorsports.com? They carry alum flywheels for pretty much all applications should be about 650. But if your looking for a lightweight steel one its a bit harder to find. If you wanted to do a m20 flywheel swap you need the whole shebang.

JoeDellio · « **Reply #9 on:** July 26, 2009, 06:40:29 PM »

Quote from: Lukis;75829

The thing that was the most positiv with converting to my JBRacing flywheel was the downshifting at the track. The E36 is not that tail happy, so I would not spend a lot of money replaacing the flywheel on a E36.

Yeah, but it weighs a damn 27 lbs.

Hodge · « **Reply #10 on:** July 26, 2009, 06:44:46 PM »

I have the UUC 11.5# flywheel and love it. It chatters alot when the A/C is on and a tiny bit when it is off, but I don't care. Engine revs so smooth.

ob_318is · « **Reply #11 on:** July 27, 2009, 12:21:55 PM »

Quote from: 318lotis;75691

i have e30 318is having trouble finding light weight flywheel anybody have any good sources for a supplier?

I did the conversion, this weekend. Following: http://www.blackforestindustries.com/m20flywheel.htm

Good luck...as for the starter, save yourself some time and do the gear switching, instead of using a 325i starter.

I tried to bolt the 325 starter right on, but did not line up, could be an error on my part...: x

JoeDellio · « **Reply #12 on:** July 27, 2009, 04:29:02 PM »

Is the 323 an 325 TOB the same part? I was just wondering if a 325 ebay clutch kit would do the trick, along with the m20 flywheel and starter. Isnt the m20 stuff from the same car also?

Im goin to pick up my new M42 engine from a salvage yard (125 mile drive) next weekend so I want to make sure I ask for all the right stuff in one shot. If I have it right I can grab the 88-91 325 flywheel and starter, and then just order a 325 clutch kit?

max123 · « **Reply #13 on:** August 04, 2009, 06:42:17 PM »

Can I just take the stock flywheel to a machine shop and get them to take some weight off? That way I keep everything the same, no new starter, or messing around with new clutches, pressure plates, spacers, etc.

Anyone done this before?

318lotis · « **Reply #14 on:** August 04, 2009, 11:55:03 PM »

i have read somewhere that the "machine shop method' will not work, but i dont understand why.

Author Topic: light weight flywheel (Read 6297 times)

carnurd