alamantia

iTrader: (10)

I hear the new jammy for a 2002 Z28 with work is to go with the LS7 clutch with the LS2 flywheel. Well my car came with an LS1 clutch which everyone said was the "LS6" clutch just to find out later it was a watered down version of the true LS6 clutch that was going in vettes (different Part number but same disc and flywheel, pressure plate has stronger springs in the real LS6 clutch, took me a while to find that out too) Clutch that came out of my 2002 Z28 was GM P/N: 12581650 (Ls1 clutch) The clutch that went in is GM P/N: 12570806 (Ls6 clutch) so I was wondering, what advantage does the LS2 flywheel have? Is it aluminum? I have heard aluminum flywheel is the way to go... why is that, is it quicker to get the RPM's up? Can I use an aluminum flywheel with the REAL LS6 clutch that I have in my car? Would it do anything good....?

DONAIMIAN

iTrader: (18)

The only advantage of the LS2/LS7 flywheel is that you can run the LS2/LS7 clutch with it. Its still an iorn flywheel. You can buy both the flywheels (LS1/LS6 or LS2/LS7) in aluminum, but you have to use the coresponding clutch.

alamantia

iTrader: (10)

Good to know I cant use the LS2 flywheel with my LS6 clutch. I didnt know that. I also didnt know both flywheels came in aluminum and steel. I thought LS1/LS6 was Steel and LS2/LS7 was aluminum. Now I know, good imput papa smurf.

I still would like to know what the advantage of a Aluminum flywheel would be over a steel one. Call me stupid but if Im launching the car with the RPM's already up... wouldnt I want the heavier flywheel to keep the momentum of my rotationg assembly up. In other words, when i drop the clutch at 3,000RPM i would think the engine would bog down less with a heavy flywheel.

And another thing there are too many friggin LS prefixes out there, the LS6 was built in 1970 and had 454 cubic inches...

DONAIMIAN

iTrader: (18)

The advantage of the aluminum flywheel is that the motor will rev faster, and free up a couple of horses. Your right about the whole momentum thing when launching and what not, you will have to use more RPM when launching. I personally have an aluminum flywheel and I would never go back to anything heavier. Plus I like the fact that when I change clutches I dont have to send the flywheel to a machine shop to get it resurfaced.

alamantia

iTrader: (10)

You dont resurface an aluminum flywheel?

DONAIMIAN

iTrader: (18)

nope, you replace the friction surface that bolts onto it. A new friction surface can be had for around 50 bux or so.

alamantia

iTrader: (10)

Dude, thats awesome. Thats like the old pontiac wheels in the 60's On some GTO's the brakes had no drums, the aluminum wheels were the drums and they had a steel race screwed into the hub for the shoes to make contact with.

Thanks for the info.

T/A-Speedfreak

iTrader: (8)

Thanks papa smurf, I learned a lot too.

DONAIMIAN

iTrader: (18)

Glad I could help