Clutch disc weight comparison

[Bmxr152]

Okay so while putting in my new trans i decided to do some comparing of clutches. I had a spec stage 2 and a clutchnet stage 2 sitting around as well as my brand new solid hub cluchnet disc. Anyways I weighed all three of the discs and compared the thickness of each. The Clutchnet sprung disc was .308 thick, spec was .312 and the new solid hub was .330. Those were all compressed measurments, and the first two had no more than 10k miles on each. Now for the weight i have some pics.
1st pic is 1lb 12.8oz
2nd pic is 3lbs 4.5oz
3rd pic is 3lbs 14.5oz
After throwing in the new solid hub with my reused spec pressure plate and new fidanza it shifts amazing. No chatter, no slipping and best of all i can shift at 8k now without gear lockout. I figure this is because i shaved 12lbs off my drivetrain weight. All i can say is ive never felt a dsm (gvr4 but still) shift this nice and ive had many different setups and platforms. So i highly reccomend the solid hub street disc to anyone who wants a streetable disc that can hold alot of power and not have to worry about springs ejecting. On a side note it was only $105 shipped and he made it to my specs(since i was using a spec pressure plate).

 

[JackM]

We really like those disks too, but some may want to know that without springs, more engine harmonics and crankshaft torsional whip will reach the drive-train. This means you will get more of that 'womp womp' noise when coasting down the road. What that noise is, is the harmonics resonating through the drive-shaft. It doesn't really hurt anything, but can be annoying to some.

Jack

 

[SmoochDarling]

Good to know!

 

[Bmxr152]

Yes i do notice some of that whomp whomp noise. At first i thought i was coming from the rear end but figured since it didnt make this noise before it had to do with the welded diff, solid hub, and VCE. Anyways a little noise is deffinetly worth the trade off.

 

[Bmxr152]

Well a little update. I was having good results with the clutch. Making 515hp with no slipping, no chatter, and not to noisy. Recently though after about 5k miles it came apart. Pulled out onto the highway and did a 1st 2nd and got nothing in 3rd. I was figuring i stripped the splines on the disc but it completely tore it in two pieces. I noticed the splines were pretty worn looking like a shark fin. The input on the trans looked brand new though. Anyway here are some pictures.

Any clues to what might have caused this?

 

[habitatguy187]

Too much powaaaa!!!

For reals though I've never seen that happen before.

 

[lowell]

Looking at the first pic, it looks like a bad design right off the bat.

 

[Bmxr152]

Looking at the first pic, it looks like a bad design right off the bat.

Thats what i was thinking maybie that bend was the weak part. I already bought a new clutch since i knew it was a disc issue. I sent some pics to clutchnet so we will see if he takes care of me since i only had 5k miles and about 8 months.

 

[91-GS]

Looking at the first pic, it looks like a bad design right off the bat.

Did not realize that the plate was kinda "star shaped", though it just had slots. Wonder why it was done that way?

 

[lowell]

Maybe they thought it was a brake rotor