ckraak

I have a 89 vette with 84k and I need to replace the clutch here shortly. I know they don't make dual mass flywheel anymore for this car, but I found a clutch kit for Carolina Clutch and Performance that has a one piece flywheel. So is there any draw backs to going to a single mass flywheel?

RustInPeace

I still have my dual mass but I've heard the single mass fly wheels are a lot noisier.

Tommy T-Bone

Could a recycled low mileage dual mass flywheel be used in this application? Just wondering since finding new one appears to be a nightmare.

PLRX

Is your DFM bad? If it only moves approx 15 degrees it is a good flywheel. I installed DFM in my LT4, you can find them but, be ready to pay for it.

I would stay away from a SMF, they dont make noise, what makes noise is the torsional vibrations of the engine throughout the transmission's gears. The engine's cycle of operation makes the gears chatter. My DD is a 4 Banger and I installed a SMF and the noise sucks. I imagine a ZF6 going crazy like that

Sweet 90

Awesome videos Pete

PLRX

I almost buy the SMF. These videos were the ones that made me make the expense.

Well Sweet, you know the routine, you liked my post and you already have my Paypal account number. I expect the money there by 10 PM PST.

ckraak

So if less than 15 degrees off play I can reuse it, but don't usually resurface it as well?

SJW

Resurfacing the DMF is generally considered to be not possible, although a few claim to have done it and had it work out okay. Most machine shops will probably decline to try it.

I recently installed the extra-weight billet steel SMF from Spec, along with their Stage 2 clutch kit, into my '94 LT1 car. The engine is stock, and the car has the blue-tag ZF gearbox, running Amsoil gear lube. I'm pleased to be able to report that I hear zero gear rattle after making the switch to the SMF.

If you're considering switching to a SMF I suggest you give the Spec extra-weight unit a look. You might find it to be a satisfactory solution.

Live well,

SJW

crmvette

Cant say i had same luck.With SMF very noisey . LT4

Rick

SJW

Was this the extra-weight billet steel SMF?

Live well,

SJW

PG-LT4

I had my DFM resurfaced about 5,000 miles ago and haven’t had any issues yet.
The shop I go to works on all kinds of exotics and they resurface DFMs all the time. From what I understand from my research it’s a pretty touchy operation so I would trust it to just any machine shop. I’d look for one who has experience.
The shop name I trade with is Evans Automotive in Columbus Ohio.
Good luck

crmvette

supposed to be but was very noisey.ended up replacing trans with new after sending to Z51 PERFORMANCE for Bill to do his magic. Almost like new.engine revs alittle quicker now.I just didnt do enough research i guess,But am happy
Do u do any shows,how about O.C. Would like to meet and talk shop


Rick

SJW

Sounds like you ended up with a lightweight SMF, instead of the extra-weight unit you thought you were buying. If so, that certainly would explain the noise.

I don't ordinarily do a lot of shows, but am always at Ocean City for the big event in October. Drop me a line, and we'll see about meeting up for some shop talk.

Live well,

SJW