Originally Posted by Joe@ZSpeed (Post 1401579)

The older HR Stage 4 kits were rated lower as they did not put the additional clamp load on them as the new ones (trying to save stock slaves) Since our HD CSC came out we can put the heavier clamp load back on them without worrying about trashing the stock slave and is the reason the TQ rating is back to 600TQ.

Did you get your clutch from us?

Digi, I will send you a new disk if you like first to keep the downtime less, Just send me back the old one when you get it out.

Originally Posted by Joe@ZSpeed (Post 1401579)

The older HR Stage 4 kits were rated lower as they did not put the additional clamp load on them as the new ones (trying to save stock slaves) Since our HD CSC came out we can put the heavier clamp load back on them without worrying about trashing the stock slave and is the reason the TQ rating is back to 600TQ.

Did you get your clutch from us?

Digi, I will send you a new disk if you like first to keep the downtime less, Just send me back the old one when you get it out.

Originally Posted by DIGItonium (Post 1401279)

Sick... I think I'm fine with 400whp at 6 PSI, but would love to bump it up to about 8 PSI. This is still 91 octane. I don't think my motor sees more than 4-5 PSI peak on average.

Vinny, even with the gears getting stuck are you able to shift at high RPM? I kept scratching getting into 2nd. It literally won't get in. Not sure about post adjustment, though... even with 1st/R being a bit tough it's fine on a roll.

Originally Posted by Vinny (Post 1401820)

Yeah, I bought the clutch and the HD CSC through you guys about 9-10 months ago.
So am I correct in assuming that the clutch will be able to hold up to the 500-540 lbs that I'm shooting for?

Originally Posted by Vinny (Post 1401826)

1st to 2nd isn't usually a problem for me, although when I'm shifting at high rpm I usually put a decent amount of power behind the shift. It is a bit difficult to go into second sometimes at 2.5-3k rpm, though, but it just needs an extra little push. The main problem is 1st and R. When I start it up cold, there's no way to get it into 1st or R without putting it (forcing it) into 3rd a few times. (I say 3rd because that's what I use, but 4-5-6 work also). From a roll it's lett difficult, but still a hassle.

Originally Posted by Ron (Post 1401748)

JB u still with stock clutch?

Originally Posted by DIGItonium (Post 1401957)

Yup I'm in the same boat with you. Yet, the car is still drivable. Pressure is good, engagement is consistent, and gear shift is mostly smooth once the car gets moving. So you notice you car moving when you get stuck getting in 1st and R? Notice how the car stops moving once you get in gear. O_o

Originally Posted by JB-370z (Post 1402450)

Do you have a short shifter? My buddy just traded his B&M in for a stock. He was grinding going into 2nd and had issues getting in and out of gears. Problem fixed.

Originally Posted by Joe@ZSpeed (Post 1401579)

Digi, I will send you a new disk if you like first to keep the downtime less, Just send me back the old one when you get it out.

Originally Posted by RCZ (Post 1171152)

...Another update on my clutch disaster:
Looks like the issue was caused by Southbend in the first place. Apparently the stock hydraulic system in our cars is absolute garbage. Its extremely weak. Some of the older 370z Southbend clutches have whats called a "marcel" which is a wave spring that gets sandwiched in between the pressure plate and disc...this was fine for the 350Z clutch (which is what Southbend uses on the 370Z) because it had a longer throw and therefore there would be enough gap for the marcel not to drag. Our cars have a shorter throw and that causes this clutch marcel to stay in contact even with the clutch fully pressed in/disengaged.

I bought my clutch from Concept Z Performance, who had NO IDEA about what I'm talking about. I tried explaining but they didnt get it. All the new 370z southbend clutches have had this marcel removed so they assume I got one of the early ones (about 10 months ago) which still had the marcel in it.

http://www.mooregoodink.com/news/wp-...-intro-pic.bmp

As you can imagine, my shifter is super notchy and has trouble going into first gear from a stand still. So because neither of these two companies wants to own up to their mistake, I will be pulling my transmission off for the 4th time and the car will have to be at the shop while we send southbend my clutch so they can test it out and remove the marcel. ...

Also thanks to JOE from Z Speed for helping us with the CORRECT information about this, he was the one that found the problem some 10 months ago and the reason why it hasn't happened to anyone else.

Originally Posted by DIGItonium (Post 1402740)

Oh that's news to me. I really hope this will fix the issues and that my gearbox hasn't suffered any major damage from over 3k miles of driving and forcing the gear lever in place.

Originally Posted by Joe@ZSpeed (Post 1403236)

That's what I tried to explain to you on the phone. When the clutch is fully engaged meaning foot off the pedal the marcel is collapsed by the pressure plate squeezing it, When you push the clutch the marcel expands as you release the clutch, too much and it will not let the clutch fully release.