Simple LS7 Clutch Question
03-03-2008, 05:08 PM
#1
Simple LS7 Clutch Question I am going to be replacing my current clutch in the next couple weeks. 2002 Z28 with 400 rwhp, 4.10s plus a GTO tranny with steeper gears, suspension, beefy driveshaft, and I plan on dumping the clutch with MT slicks at about 6000 RPM.
Will the clutch hold well and last?
EDIT: I have a 12-bolt, as well.
Will the clutch hold well and last?
EDIT: I have a 12-bolt, as well.
Last edited by PewterScreaminMach; 03-04-2008 at 10:46 AM.
03-03-2008, 05:14 PM
#2
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A 6000rpm clutch dump is a lot, but the LS7 should hold your power.
It's designed for a 505 hp corvette (pretty much a factory race car) so you shouldn't have any problems.
It's designed for a 505 hp corvette (pretty much a factory race car) so you shouldn't have any problems.
03-03-2008, 08:44 PM
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Pretty much all of the factory LS clutches tend to heat up pretty quickly. It should hold the occasional clutch dump, but i wouldn't plan on hot lapping it.
03-03-2008, 10:22 PM
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Yes it is lighter and yes its not really a drag car, but it is meant for road racing. With all the up shifting and down shifting involved in a road race, don't you think that LS7 clutch could take a beating?
03-04-2008, 03:20 AM
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there's a lot less slippage in road racing than there is in a high RPM clutch dump with sticky tires. When you're dumping the clutch all day on a road course the car allready cas momentum going. Getting 3000+ lb's going from a stop is a little different.
03-04-2008, 08:21 AM
#7
Anyone have more experience with this? I may end up having to man up to a Textralia if I can't get some good feedback, and that's obviously more than double the price, which I don't really have right now.
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03-04-2008, 10:29 AM
#10
Unless those 4:10's are on a 9 inch, I don't think it'll hold a 6k clutch dump regardless of the clutch used. Grenaded 10 bolt in future says most of us.
I don't get it. If you can afford
a)$400 driveshaft (PST is the bare minimum for a power DS)
b)a beefed GTO transmission T-56 are NOT cheap (rebuild for power alone is 1K)
c)mods to bring you to 400HP (cam/heads, all bolt ons etc)
d)supporting suspension (torque arm, panhard, lca, lca relocation, shocks, swaybar etc)
How is a $1000 clutch out of range in retrospect to all those other mods, it's a drop in the bucket compared to the rear?
I don't get it. If you can afford
a)$400 driveshaft (PST is the bare minimum for a power DS)
b)a beefed GTO transmission T-56 are NOT cheap (rebuild for power alone is 1K)
c)mods to bring you to 400HP (cam/heads, all bolt ons etc)
d)supporting suspension (torque arm, panhard, lca, lca relocation, shocks, swaybar etc)
How is a $1000 clutch out of range in retrospect to all those other mods, it's a drop in the bucket compared to the rear?
03-04-2008, 10:54 AM
#12
Unless those 4:10's are on a 9 inch, I don't think it'll hold a 6k clutch dump regardless of the clutch used. Grenaded 10 bolt in future says most of us.
I don't get it. If you can afford
a)$400 driveshaft (PST is the bare minimum for a power DS)
b)a beefed GTO transmission T-56 are NOT cheap (rebuild for power alone is 1K)
c)mods to bring you to 400HP (cam/heads, all bolt ons etc)
d)supporting suspension (torque arm, panhard, lca, lca relocation, shocks, swaybar etc)
How is a $1000 clutch out of range in retrospect to all those other mods, it's a drop in the bucket compared to the rear?
I don't get it. If you can afford
a)$400 driveshaft (PST is the bare minimum for a power DS)
b)a beefed GTO transmission T-56 are NOT cheap (rebuild for power alone is 1K)
c)mods to bring you to 400HP (cam/heads, all bolt ons etc)
d)supporting suspension (torque arm, panhard, lca, lca relocation, shocks, swaybar etc)
How is a $1000 clutch out of range in retrospect to all those other mods, it's a drop in the bucket compared to the rear?
I've spent all of my money on this car trying to get it beefed up and capable of handling hard launches and hard driving, but now that everything is good to go, I've found that I have clutch issues that I can't seem to get rid of. At this point, it's not disengaging at high RPM even though I've replaced EVERY part of the clutch/tranny assembly, including using an adjustable master cylinder, a regular GM master, two different Spec clutches, two different GM slaves, a new pilot bearing, a new shifter, and a new tranny. All professionally installed and always using the shim.
The only constant with all of the things I've tried is that I have been using Spec clutches the whole time, so I'm scrapping them and trying something different. I'm going to replace the clutch, flywheel, and slave now since the master is brand new (just installed about two weeks ago) and I'm still having the issue. I actually have a new slave installed, as well, but I've heard that some dealers are selling the wrong slave, so I'm hoping that's not the issue, but I'm going to replace it along with the new clutch just in case. Everything was professionally installed, it just doesn't seem to go away and I don't want to destroy my brand new tranny. I'm going with the Textralia.
