Author Topic: DIY M20 flywheel conversion (Read 125320 times)

m44power · « **Reply #60 on:** April 28, 2007, 02:29:12 PM »

the problem with the starter its much bigger a few days ago i remove my 250 getrag gearbox coz i break my cluch disk i see my flywheel hits my starter cover in right side seems to need turn it a litle bit left im gone work on it to find a solution

steve321 · « **Reply #61 on:** July 01, 2007, 12:32:30 PM »

would it be worth me going for one of the M20 flywheels for my 318is, i have a a single mass M42 one in mine, which i skimmed down to 7.4Kgs, would i be getting much lighter than that if i had an M20 one?

?

steve
________
New Mexico Medical Marijuana

Shift_Now · « **Reply #62 on:** November 06, 2007, 09:52:40 PM »

has anyone tried this flywheel and clutch set up? it says its lighter and is a direct bolt on. http://cgi.ebay.com/ebaymotors/F1-STAGE-1-CLUTCH-FLYWHEEL-90-99-BMW-318-318i-318is_W0QQcmdZViewItemQQcategoryZ33730QQihZ005QQitemZ150166174476QQrdZ1QQsspagenameZWD1V

Wise Old Dog · « **Reply #63 on:** November 06, 2007, 10:07:27 PM »

It is a 240mm flywheel. It will not fit a E30. I have a Fidanza flywheel that was advertised as fitting a E30 also. It will not fit either. E36 used a different tranny which allows the 240mm to fit. Max you can use is a 228mm. Thats why the M20 conversion is about as good as you can get.

mgold · « **Reply #64 on:** February 26, 2008, 04:44:13 PM »

I'm having a local shop (Valley Motorwerks) perform my conversion, probably next week, assuming they can get all the parts in. Since its all out I'm having them also replace the guibo, csb, and rebuild the shift linkages and bushings and throw in a Z3 1.9 shifter as well. I'm also throwing on new tranny mounts and E28 (535i) motor mounts as well. Any thoughts or suggestions?

Wise Old Dog · « **Reply #65 on:** February 26, 2008, 04:57:28 PM »

New slave cylinder. They're cheap enough, and if yours is original, you are due. If one goes bad and sprays fluid all over your new clutch disc and ruins it, you'll be pissed.

mgold · « **Reply #66 on:** February 26, 2008, 05:07:52 PM »

Quote from: Wise Old Dog;43643

New slave cylinder. They're cheap enough, and if yours is original, you are due. If one goes bad and sprays fluid all over your new clutch disc and ruins it, you'll be pissed.

Hmmm, you may be right. Maybe its a better purchase than the Z3 shifter.

Wise Old Dog · « **Reply #67 on:** February 26, 2008, 05:21:33 PM »

I love my z3 1.9 shifter. Slave cylinder is only about $30.

mgold · « **Reply #68 on:** February 26, 2008, 05:31:26 PM »

Quote from: Wise Old Dog;43648

I love my z3 1.9 shifter. Slave cylinder is only about $30.

Well, in that case, I might as well do both.

1991 E30 M42 · « **Reply #69 on:** February 26, 2008, 07:07:39 PM »

I have hear that the Z4 shifter will also fit and that it has an even shorter throw than the Z3 shifter. There should be a thread somewhere on this sight with a picture comparison.

mgold · « **Reply #70 on:** February 26, 2008, 11:41:01 PM »

Yeah the Z4 shifter is shorter, but also sits very low which I don't like the look of. The nice thing about the Z3 1.9 is that its a big improvement over stock and retains much of the look of the stick shifter

mgold · « **Reply #71 on:** February 27, 2008, 04:15:01 PM »

Car goes under the knife on Monday morning.

mgold · « **Reply #72 on:** March 05, 2008, 12:36:43 AM »

A quick update... car should be finished tomorrow.

It's also getting a CSB, guibo, rebuilt shifter bits along with a Z3 1.9 lever, new tranny mounts and E28 motor mounts.

After they pulled everything out, they found that pretty much all of the seals were leaking, the rear main and the input/output on the tranny.

mgold · « **Reply #73 on:** March 05, 2008, 09:56:33 PM »

Picked it up this afternoon, and wow, I am impressed. The motor spins up faster and the car has more pull in 1st gear. Awesome mod, highly recommended!! Combined with the Z3 1.9 shift lever, the joy of driving stick has returned.

dude8383 · « **Reply #74 on:** March 06, 2008, 11:43:15 AM »

Oh yes!

The difference is really incredible huh?

Very peppy!!!!