1FST-Z

iTrader: (6)

Hey guys,

I'm about to pop in a new Textralia clutch, and am a bit confused about refinishing a stock flywheel. How much are you compromising the integrity of the flywheel when refinishing it? Are there any specific tolerances as far as thickness goes that I should know about when bringing it to a shop? Thanks in advance!

slowpoke96z28

iTrader: (2)

i think there is something stamped on it for minimum thickness, kind of like how they do brake rotors. most car flywheels can be turned at least once. i would not machine it more than twice, but most cars dont live that long to see a 3rd clutch job anyways

1FST-Z

iTrader: (6)

Good deal, thanks slowpoke

01ssreda4

iTrader: (96)

no minimum thickness printed on it....already looked.

01ssreda4

iTrader: (96)

no one????

LS1-450

iTrader: (33)

0.815" comes to mind. I'v gone as low as 0.810" without issue. Remember to have the pressure plate & flywheel balanced as an assembly after machining.

1FST-Z

iTrader: (6)

Hey what if I went with a new flywheel that was computer balanced... would I still need to get the pp and flywheel balanced as an assembly?

BALLSS

"if" you have a "internal" balance motor...balanceing FW & PP as a unit is a good idea

stock motor is "external" balance

slowpoke96z28

iTrader: (2)

are you sure? i know i've been out of the stealership for a while now, but i don't recall LSx engines being externally balanced.

1FST-Z

iTrader: (6)

And so your suggestion for my application, ******?
Lightweight FW mated to Textralia... balance or no balance?

oange ss

iTrader: (50)

i believe the service spec for a stock flywheel is .020, and LS1's are internally balanced

1FST-Z

iTrader: (6)

okay so is it safe to conclude that all i need to do is bolt everything in there and just go with it?

LS1-450

iTrader: (33)

If you are replacing a stock clutch & a stock flywheel, any stock flywheel weights are removed from the stock flywheel, the PP is mounted to the new stock flywheel & the the PP & flywheel are balanced. After, the stock flywheel weights are re-installed to the new flywheel in order to keep the engine balancing in tact.

You asked for the thickness spec, not the service spec. Minimum thickness of 0.815" after machining is the thickness spec..

The flywheel & PP assembly must be balanced as a unit, regardless. Only thing to check is whether or not your stock flywheel had balancing weights from the factory. If the flywheel has already been incorrectly changed prior to this time, you won't know.

Anyone of whom enters this thread stating that their car is fine without balancing are confused about what is correct & what is incorrect. All the time, there are guys chasing car vibrations & spend a lot of money chasing wheel balancing & alighments because they don't realize that it's an improperly balanced clutch assembly causing the problem.

LS1C5Vette

iTrader: (11)

LSX's are INTERNALLY balanced.

I had my flywheel turned and they took off .007 then I had it balanced and it was 12 grams off. I did not balanced my clutch and FW together but I got lucky and all is good 6k later.