dime1622

heh, not enough dinero for a rebuild. YET. hehe. gotta bring the motive back to ya. ill give you a call tonite

ehall

ohh, okay. For what it's worth, the clutch issue IS common, but I've read from a few that really complained early, that it isn't as bad once it wears in. (Meaning 5k ish) Did you get it all from LR?

BTW too you dyno sheet guys, it is on the promax site. Not too shabby.

dime1622

ja.

Missin2

its a typical problem with most high performance clutches on most cars..

it will break in a little..

I dont knowwhat options the porsches have as far as final/ rear gears go but going lower (numericly higher) gears will help as well..

420WHP944

hi again.......so looks like i'm not the only person with judder issues....it's par for course seemingly with these clutche's. i will give it a few thousand miles or so and it should get better from what everyone is saying on this thread....thanks again gang for the info!!! cheers.

gstreev

I had this problem with a different car, I found that rasing the idle about 200 RPM and playing with
the pedal adjustment helped make the shudder go away when taking off in 1st gear. My 951S doesn't have this problem, but my Subaru WRX started developing this. It became more evident
when I switched to a C.A.I.

420WHP944

ohh, okay. For what it's worth, the clutch issue IS common, but I've read from a few that really complained early, that it isn't as bad once it wears in. (Meaning 5k ish) Did you get it all from LR?

BTW too you dyno sheet guys, it is on the promax site. Not too shabby.
__________________

yep.....i got the clutch through lindsey racing, not that it matters where i got it. im ok with the judder now that i know it is common, i'll master it im sure.

also.....my dyno figures are on www.promaxmotorsport.com it was dyno'd last year at abg motorsport in chesire uk on a recently calibrated dyno. it produced 422 bhp and 400ft Ibs of torque.....NICE!!!!!!!

also.....my car was featured in july o4 issue of porsche&911 world and also in julys 04 issue of gt purely porsche......im not sure if you can get those mags here in the usa? but they are excellent reading for porsche fans of all porsche models.....check it out if ya can....cheers.

highboy

I've got the same chatter problem in my '87 951 with a newly installed SPEC stage 3/hybrid/alum PP and fidenza flywheel...goof to know that I'm not the only one...

sebastian944

i have some judder too (Centerforce clutch) but as already stated, timed revs solves issue.

bigdeano

I have a little chatter (930 clutch), tends to be sub 2100 rpm. Put in about 1200 miles ago in july. Went with the sach PP. Have felt a small change in the pedal as the clutch has slowly gotten broken in.

Acetylene

I have the shutter too. Especially in Reverse and First. As already stated, rev matching on downshifting makes a difference. Mine has only seen about 80 miles since I had the clutch installed a few months ago. I am hoping time resolves some of the issue. Oh, its a Spec Stage 3 six puck.

333pg333

I had a 6 puk and it really shook quite hard when reversing or taking off sometimes. Fantastic for the track, but not nice around town and especially bad in traffic.
However, I'm betting it would gain you close to a second around many circuits just due to the instantaneous take up of power after shifting up into the next gear. The softer ones are much nicer on the street but feel sort of mushy compared. Depends on what you want from your car?

DFASTEST951

huh, I thought that was normal. I've always had shuttering. Makes you perfect the way you match your revs when downshifting. Welcome to the big boys club.

333pg333

Joe, I agree. It is good to learn how to change gears properly and it's one of the reasons I like to drive manual cars, but you probably don't have anywhere near the traffic that some of us experience. I loved driving with my 6 puk but stop-start or reversing was shaking my car apart. I would definitely do it in a track car though.

DFASTEST951

I agree patrick.