anyone have their flywheel shaved ,is it a good idea?

 

FAQ U!

 

i cheaked that already but since thats an older model i wanted some input on the current gen,would'nt this mod weaken the flywheel causing possible damage later ?

 

I think I saw a web site somewhere (I can't find it anymore) with a guy with a 5th gen that got an aluminium insert, replacing the stock one.

Resurfacing / grinding is really not reccomended. Many horror stories exist.

 

Diff model. Same theory applies. You might have to do some research but I bet the 5 gens are about 19 lbs. also.

 

Arrrghh... 19 pounds @ 3000, 4000, OK! 6500 RPM, shave a few pounds and I am sure you will feel a difference.

Flywheel, we don't need no stinkin' flywheel!

 

Dude, shaving the flywheel would defeat the purpose all together. I mean shaving it would reduce weight yeah, but at the same time reducing heat distribution and thus most likely cause cracks in the flywheel much quicker.

If anything you would need a upgraded flywheel. Definetely dont recommend shaving it.

Dixit

 

You definately haven't read the FAQ. Flywheels are not designed to absorb large amounts of heat(they don't need to) like brake rotors. They are energy storage devices. Getting them lightened by a professional is not a big risk at all. But again, getting done right is essential. I had this mod done on my 92se and I wrote that FAQ. Also SCC had their project Subuaru 2.5rs turbo car's flywheel lightened also.

 

Okay well, I drag race for a living, and to what I have seen, when the flywheel is lightened, you loose some strength. And stress cracks do happen when you jack rabbit start your car.

That is why I mentioned it.

Dixit

 

I've seen surface heat related cracks on absolutely stock flywheels. But only on the wear surface of flywheel where the clutch disc meets the flywheel. It's mostly from doing too many burnouts or from overpowering the pressure plate. Those types of cracks do not (IMHO) directly related to the strength of the flywheel. The fix for this type of cracks is to get the unit resurfaced. If these cracks were strength related, they would throw the unit away.

 

Are saying that it does nothing? Taking xxxlbs of material out of the outside edge of a large diameter mass(ie..flywheel) will make more if a difference in interia than taking the same amount of mass out of a smaller diameter mass(ie..UDP) Since UDP's gains have been dyno proven, we should assume the same for the flywheel(if not more) This theory is also demonstrated in lighter wheels/tires.