Flywheel dilemma

[M3Daemon]

I am thinking about putting in a lightweight flywheel in my 92 325i. I know lightweight flywheels are supposed to improve the throttle response and increase pickup by removing some of the rotational mass, but I also heard bad stuff like occasional stalling and gear rattle in idle. Does that also apply to the e36?

[Andrewsd1985]

Havn't heard of the stalling but the rough idle is the same in e36 as any car. You can fix that problem with a new chip.

[M3Daemon]

Originally posted by Andrewsd1985@Mar 24 2004, 11:29 AM
Havn't heard of the stalling but the rough idle is the same in e36 as any car. You can fix that problem with a new chip.

I already have an autothority chip installed... how would that fix the gear rattle?

[Mach 5]

The stalling comes from the removal of that rotating mass. It is just on takeoff and the driver can quickly adjust their driving style to prevent stalling. The gear rattle is because most lightened flywheels are single mass not dual mass. A dual mass flywheel dampens vibration transmitted through the drivetrain, A single mass allows the vibration to be transfered through the clutch and into the gearbox. For about the first 85 years of automobiles all flywheels where single mass, so it is not that big of deal. It will be a little noisier is all. I do not know if a chip will effect the rattle at all.
Ben

[M3Daemon]

Originally posted by Mach 5@Mar 24 2004, 02:07 PM
The stalling comes from the removal of that rotating mass. It is just on takeoff and the driver can quickly adjust their driving style to prevent stalling. The gear rattle is because most lightened flywheels are single mass not dual mass. A dual mass flywheel dampens vibration transmitted through the drivetrain, A single mass allows the vibration to be transfered through the clutch and into the gearbox. For about the first 85 years of automobiles all flywheels where single mass, so it is not that big of deal. It will be a little noisier is all. I do not know if a chip will effect the rattle at all.
Ben

Ben, would the spring-hub M5 clutch solve the problem? The clutch itself looks like a dual-mass setup... but it's about twice the price of a M3 clutch that I would have to install... do you think it's worth it?

[eloff19]

check this out...it might give you some ideas

[M3Daemon]

Originally posted by eloff19@Mar 28 2004, 02:55 PM
check this out...it might give you some ideas

Thank you! This was indeed very helpful !!