Aluminum Flywheel

[Justin N.]

Dear Members,

I see those Fidnaza aluminum units and I'm wondering if anyone has used one? A friend in highschool used an aluminum flywheel on his BMW 2002 that he raced on a track. I understand that it winds up faster with less effort, but it looses the syntrifical force before launching. I think he said that you need to speed up engine rpm before engaging the clutch because the weight isn't there and it's easy to bog down. What do you guys think?

Justin #41362

[Joe L.]

Re: Aluminum Flywheel

Justin-----

I don't recommend and would never use any aluminum flywheel for a street application. Period.

[richard hayes]

Re: Aluminum Flywheel

Justin,

When I bought my 65 -it had an aluminum flywheel. BUT it was behind a 350ci 4 bolt main truck motor and seemed to work ok-but the engine was a slug. When I replaced it with a 327 L79 spec engine. The car was a bitch to drive in traffic. I found a #3791021 correct flywheel and what a difference!!! I'll be GLAD to give you the aluminum flywheel- but remember pulling the transmissin the second time is is a lot less fun because you KNEW better.

[Mark #28455]

Chevrolet has 15# nodular ones

Used stock on the L88, not bad in traffic with a big block (80# crank) and 4.10 rear. They were also used in the 305 Camaros in the 1980's with the 5 speed (really low 1st gear - I have one in my '89). I don't think I would bother with a close ratio Muncie and 3.08 gears though. So it depends on your trans and rear ratios.

Good luck,
Mark

[Duke W.]

Re: Chevrolet has 15# nodular ones

I considered a L-88 flywheel for my SWC, but with a L-76, CR trans, and 3.08 axle, I decided to keep the OE 30 pound lump. It's hard enough to get launched as is.

For most street engine combinations the heavy OE flywheel is best. If you're concerned about getting a few hundreths better ET in drag racing a light flywheel is okay.

Duke