Lightweight flywheel?

[JAM]

Does anyone know if they make lightweight alum flywheels for our cars?

[pgriffith]

I think Star spec can modifie your stock flywheel and shave off some weight. Last I heard they were charging $150 for this. Maybe some other boar members have more info.

[JAM]

Sweet! Do you happen to know how many teeth ours have? I know some companies like hays makes aluminum flywheels weigh around 15lbs. Anything like that out there for our cars?

[Paul Collins]

I'd love to know about this as well.

[viper98885]

Nobody makes an aftermarket lightweight flywheel for our cars, but as stated above, SPEC will lighten it for you for $150. I am a distributor for SPEC and I called a few days ago to confirm this and that said it was true. I don't know how mcuh weight is shaved off of it, but it's supposed to be pretty significant.

[JAM]

When Spec shaves weight off the current flywheel does it affect the strenght of it in anyway?

[viper98885]

<blockquote>quote:</font><hr>Originally posted by JAM:
When Spec shaves weight off the current flywheel does it affect the strenght of it in anyway?<hr></blockquote>

Yes, but not in any way that will effect you. Only if you were throwing 600 Hp at it which I don't see us doing. SPEC is a very reputable company and they definitely know what they're doing. If making your flywheel lighter would sacrafice too much strength, I am sure that they wouldn't do it.

[Skinny]

I have a stock flywheel that has been lightened by SPEC. I don't know of anyone else thats had it done (on a v6 fbody) and I know mine was the first that SPEC did. They didn't get to take off as much as they wanted because they found that the flywheel has a natural imbalance (probably a reason nobody makes an aftermarket flywheel for us). I weighed the two separately. I don't remember the exact weights but I believe the shaved flywheel was about 6 lbs lighter than stock. That may not sound like much but it goes a long way in that part of the drivetrain. Below is a pic of the lightened flywheel mounted. You can see the sections taken out on the edges. I also threw in a pic of the stock flywheel.

lightened flywheel
original flywheel

[MrCoffee]

I've always been told not to touch the flywheel because the engine is balenced perfectly and any changes like that mess things up more than help.

[JAM]

Thanks for all the info!

[john00v6a4]

<blockquote>quote:</font><hr>Originally posted by MrCoffee:
I've always been told not to touch the flywheel because the engine is balenced perfectly and any changes like that mess things up more than help.<hr></blockquote>

also i heard they are really not helpful at all when racing. i heard they hurt more than help. i dont know this for sure, its just what i heard.

[snotty]

yeah, you both heard this from a guy who never actually tried this mod.

[john00v6a4]

<blockquote>quote:</font><hr>Originally posted by snotty:
yeah, you both heard this from a guy who never actually tried this mod.<hr></blockquote>

actually i heard from some of the guys that work at thunder racing.

[Dominic]

Too light of a flywheel makes shifting normally (letting off the gas) without stalling into the next gear almost impossible... Drag racing isnt as easy either - but accelerating in gear is a whole lot faster with a lighter flywheel.

Keep in mind 6lbs isn't enough to make a dramatic difference, but it will help, and when I replace my clutch I'm planning on lightening mine if possible. Seems like a great deal, and 6lbs isn't enough to affect driveability I don't believe.