Agreed, MadWhip. On both points (ignore and wait).

What kind of aftermarket clutch did you get and what are your opinions about it?

To me, the clutch helper spring removal was awesome. I have a much better feel for the clutch engagement than before. It was as if the clutch was on a cam, and the sweet spot of engagement was about a micron wide. Without the spring, you can feel it much more easily.

 

Clutch is in my signature. Engages like stock. But Grabs like monster

 

Perhaps as a double check, do a clutch test running in 4th or 5th and downshift...watch the rpms.

 

I don't understand how you guys are killing clutches. I just recently removed the clutch from my Rturbo and it was like new after 20K plus miles including 4 years of track use. You could still see the honing marks on the flywheel and PP plate. The clutch disc had zero measurable wear. None...

 

I do not beat my cars but have driven many over 100k. But that said have beaten a few to death in my big block Mustang and Corvettes in younger years.

 

Was referring to clutch wear kinda left that part out duh!

 

One of the major clutch killers is "Slipping" the clutch between gears. Even during normal driving, you could be slipping the clutch a lot. However, there are a lot of components to a clutch- so it could be anything going wrong. I have 26k (15k flash/exhaust and 2k on ~700hp) driving my car hard- but my engagements are very smooth. RPM matching is the key! Not saying you arn't though! Good luck!

Edit: I just remembered, the gt2's clutch is a bit stronger from the factory, regardless- no slipping so far!

 

@TabooPC -- This is exactly the kind of info that I was seeking.

I don't rev match going up or down. Sometimes, I get into a phase where I'll heel/toe while shifting down in order to power out of a curve. But I don't do it that often.

Upshifting, I don't rev match either.

Any proper techniques that I can apply here? Do I need to heel/toe on all downshifts?

 

good idea lol

 

Yeah, I was trying to figure out how you'd rev match upshifting. Wait until the rotations in the engine decrease to match the new gearing?

 

Did not need to make anyone punch a wall here. Just Internet jesting. Sometimes I forget I'm not in off topic on corvette forum.

And did someone just say rev match on up shift??????

 

No worries VGLNTE1. As mentioned, just travel and stress from that leading to a thinner skin than normal.

 

Its not that you need to be a race-car driver for the street. Heel-toe is nice and all, but lets say you're in 4th and needing to be 3rd. All you need to do is give the car a small "rev" before you let the clutch out. Take a peek at your tach and just add 1krpm before you let out. Thats how I (would) do it. Eventually itll become second nature and you'll just blip the throttle before all downshifts.

Upshifting is a little different. The clutch stress on upshifting comes from letting the clutch out too fast (causes the car to jerk or "slam"). The other case could be the clutch is not coming out fast enough, letting the rpm's die down.

In either of these cases, the clutch is "slipping" while the engine/wheels bring the other side of the clutch up to speed in order to match.

Edit: to awnser your question in specific- "Wait until the rotations in the engine decrease to match the new gearing?" - This is a tricky question. Mainly because it is very gear dependent. From 1st to 2nd, I wait a whole half to full second before letting the clutch out (normal driving assumed). In 3rd to 4th, and 5th to 6th, the time it takes for the engine to lower to the proper rpm is decreased. In higher gears, this time is shorter, as the jumps between gears (in rpms) is smaller.

Good luck!

 

Always rev match as noted a little practice and its second nature.

 

I have this for the vette, where it's highly needed on track, but I'm sure they can make one for a 911. They make whatever is in demand. It works amazingly.

http://auto-blip.com/index.php?route=common/home