i personnally don't mind the noise either but the triple disk carbon clutch i had on my supra, that i couldn't live with, god the noise was awfull.

If i was not driving the car hard, i would have kept the dual mass but if you ever intend on putting a toe on the track, make sure you have a lwfw. Best mod ever.

 

What kit do you have? Is it the kit that Kevin of UMW sells?

 

964rs is Steel. The aluminum aftermarket ones have steel inserts for the disc to wear on, so even though it's aluminum the friction face and the starter ring are made of steel.

 

Oh no not another oil debate

 

Yah. I run the UMW kit. Besides a flash the LWFW is the best mod evArr, ESPECIALLY if you're doing a clutch job anyhow.

 

That makes sense. I thought they were aluminum too. I have heard people report that the 964RS LWFW has less rattle than the aluminum ones. Now, I am curious what the weight difference is between the RS LWFW and the other aluminum examples? I will do some digging. When I was in the B5 S4 community the guys running the aluminum LWFW setups had a fair amount of noise too. But one vendor made a steel flywheel that was in between the DMFW and the aluminum units weight wise and the noise was next to nothing in comparison.

 

Thanks. Let us know if it starts getting noisy with some miles as some people have indicated. I've considered this but I don't want anything that would make the car sound "broken" as some claim.

 

IMO, if you wish to insure you don't have that "broken" sound, don't do the LWFW or chances are you are going to have it. There are way too many people claiming the same sound to hope it doesn't exist for you. It's well documented - that's how it is...My experience is identical to Tim941 and many others, that is if you are in the middle of three lane traffic at a stop light with windows down, you will hear what sounds like a bucket of metal bolts in a tin can being thrashed all around and people in other cars will look over at you with a look on their face of "what the ---- is wrong with that car". Now, you will know there is nothing wrong with your car and it's just the sound of a high performance part, therefore there is nothing to worry about. It's the same situation at bank drive thru's, especially when under the enclosed area. It will also make a metallic noise under initial load of a take-off until about 2,200 RPM's. Not bad in the wide open or on aggressive starts, but in stop and go traffic, as you move along, you will hear it as you will be driving the car easy at low RPM's. So if you are OK with that and many are, go for it. If you think this would bother you, then you would probably be making a mistake to install it. This is a mod that is not for everybody. There are pros and cons and one must consider which outweigh the other for their particular use, taste, tolerance for noises, etc.

 

Thanks for the input John. I'm just perplexed as to why the 997GT3rs and the new GT2rs which both have the LWFW don't have these noise issues considering they have higher compression motors than our 996tt, especially in the case of the GT3rs. They make a little noise but it's relatively minor.

 

this cracks me up everytime.

 

they have these noise be shure ....heat transmission up and you will hear it

a gt3rs has a higher idle and normaly no AC....that helps a lot

if you already ask about the noise, better you let the fingers from a lwfw you will be unlucky

at the 996tt the crank is very light and that need a flywheel with a mass to avoid pulses and rattle...a set of good turbos and intake pipes clean the difference to a lwfw...i do it and go from a lwfw return to a dualmass with responceable turbos and intake pipes and miss nothing (okay my dualmass is a little lighter than stock)

but i understand at extreme track use a lwfw is a must....and you will love it

 

In going on 8 years I have yet to have someone look at my car with the look you are suggesting....the look of amazement, but never has anyone asked if there was something wrong with the car

Agreed...the only way to know if you are OK with the LWFW is to sample cars with the mod installed.

 

My mechanic said he had 3 cars break their cranks with LWFWs because of the lack of dampening?? Is this possible??

 

It would surprise me if dampening was the cause verses rapid over rev. The stress on the crank is greater with the heavier flywheel, but the engine can rev quick enough for you to over rev it easier. Especially in 1st gear. I am very cautious about wot in 1st gear even with a stock flywheel. I want to hear some expert input on this.

 

No expert here but. I have a 8k rev limit on a stock 996tt crank and have not broken a crank (rods for sure) or even hear of if happening to some one. I have seen loose flywheel bolts though on both single and dual mass wheel.