ronn

iTrader: (3)

1) what's the difference between LSJ and LNF Flywheels? I know LNF costs 3X as much!
2) can you swap an LSJ flywheel into an LNF clutch KIT (PP/disc and TOB)?
BTW.. I see ZZP sells the LSJ and LNF flywheels for the same $$??? Looks like they're the same??

chood711

iTrader: (4)

i know that the lsj upgraded clutch is just the lnf stocker..so that tells me they can be swapped. as far as it being the same flywheel or not i cant tell you.

https://www.cobaltss.net/forums/2-0l...erence-150915/
https://www.cobaltss.net/forums/driv...change-236661/


see if these help ya

SlowCobaltSS

I know someone that put a LNF flywheel and clutch on his LSJ and all he need to get was longer flywheel bolts or clutch bolts I dont remember which bolts he said

hungryhip-ccp

iTrader: (2)

I have a used LNF flywheel, clutch disc, tob and PP in my LSJ. i bought it instead of the gmpp like said ^ its the same ****.

But do not use a lsj tob with lnf. it will not nls right and the lnf tob is far superior than the lsj.

Iam Broke

iTrader: (10)

LSJ flywheel is much lighter ronn, LNF is ~45 lbs. I have a slightly surface rusted LNF flywheel in the attic if anyone needs one. Used LNF clutch & slave also with ~20k miles on it.

freakta

iTrader: (1)

how much does the lsj one weigh? id love a heavier flywheel

Iam Broke

iTrader: (10)

Not sure, maybe around 20 lbs for the LSJ? Just a guess. Hopefully someone knows.

If I remember right, the LSJ GMPP clutch is an LNF pressure plate with an F40 disc, not an LNF setup.

BLue NoTe

iTrader: (4)

Just replaced my (cracked) LSJ flywheel, yeah its probably 20 to 22 pounds. Love my 8 pound Fidanza

ronn

iTrader: (3)

Ok..so that's it...the weight difference. I assume they're the same size though.

Thanks.

BLue NoTe

iTrader: (4)

Engine load = turbo boost. The higher load of the LNF flywheel increases combustion pressure, thereby increasing exhaust pressure and turbo spool

ronn

iTrader: (3)

Good point!

freakta

iTrader: (1)

and the heavier the flywheel the more low end tq

ATLsilverSS

iTrader: (4)

isn't there something different with the dowel pin?

Iam Broke

iTrader: (10)

You might be thinking of a SPEC PP on the stock FW, the dowel holes have to be bored out to 12mm on the stock FW.