Flywheel machining... Should I?

[PHaT MR30]

I have my flywheel off and i am wondering if i should get it machined and maybe even lightened slightly??

[R33S2]

The pros of a lighter flywheel are A. less weight B. Slightly more responsive

The cons are the motor stalls easier (less inertia)

[PHaT MR30]

any indication of the minimal amount to have taken off to get a slight more response?

[wilch]

Most workshops I went to will only machine it to make the top flat again. They won't "deliberately lighten" the stock flywheel. The reason I was given was that if you lighten it, you weaken it. If it's too weak it can shatter, and if it shatters while you're driving the fragments are likely to break through into the cabin and cut your feet off.

If you want a lightweight flywheel, I'd recommend getting something like this:

from Unique Autosports www.nismo.com.au

I bought one and had it installed when the new clutch went in. I noticed the difference instantly.

[usuckpoo]

Yeah dont lighten a stockflywheel because it will weaken it and if so, u risk shattering it.

Off the shelf aftermarket flywheels are usually lighter becos of material and also construction while maintaining strength

[n1k00]

I have done this on many of my cars however they were all a mild tune if your hoping for 275kwatw or more you are beter off buying one

Edited July 14, 2010 by n1k00

[joeyjoejoejuniorshabadoo]

i wouldn't lighten a stock flywheel... ever

have you have ever seen the result of a flywheel letting go @ 7000 revs? it aint pretty!

[Birds]

Yeah it's not terribly bright. Up there with welding a diff in a daily driver (and I know your sentiments on that Hamish ). Always buy a lightened flywheel. Meh @ weakening the structural integrity of 15-20 year old metal.

Thread dig to the maxxxxxxxxxxxxxx

[joeyjoejoejuniorshabadoo]

f**k hella thread dig lol

adam, you'll be pleased to know that i just swapped out my welded diff in the ke....

for an S series welded diff

bwahahahahahahahha