[Z06] trans questions
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Instructor
Joined: Dec 2004
Posts: 199
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trans questions
at the track last night first 2 runs went perfect 3rd run i missed 2nd figured ok driver error.4th run boom missed again. on the way home the car was going into 2nd but felt kinda tight any ideas what it could be??? someone told me it might be cause the clutch was very hot. im starting to get worried if its doing it tomorrow morning i think im gonna have to take it back to the dealer. any ideas????
Racer
Joined: Jun 2005
Posts: 389
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Originally Posted by xxsvtcobrakidxx
at the track last night first 2 runs went perfect 3rd run i missed 2nd figured ok driver error.4th run boom missed again. on the way home the car was going into 2nd but felt kinda tight any ideas what it could be??? someone told me it might be cause the clutch was very hot. im starting to get worried if its doing it tomorrow morning i think im gonna have to take it back to the dealer. any ideas????
turn it on tomorrow and go for a drive.....if its still notchy then you got an issue
Drifting
Joined: Jun 2005
Posts: 1,824
Likes: 1
From: Middleboro Massachusetts
Originally Posted by xxsvtcobrakidxx
at the track last night first 2 runs went perfect 3rd run i missed 2nd figured ok driver error.4th run boom missed again. on the way home the car was going into 2nd but felt kinda tight any ideas what it could be??? someone told me it might be cause the clutch was very hot. im starting to get worried if its doing it tomorrow morning i think im gonna have to take it back to the dealer. any ideas????
Last edited by zo6vetteman2003; Jul 21, 2005 at 01:51 AM.
Melting Slicks
Joined: Sep 2003
Posts: 2,911
Likes: 1
From: Augusta GA
St. Jude Donor '05-'06
Sorry to hear about your issues. Could be syncro or bent shift fork maybe? Been there done that but I messed up my 3rd syncro :o Sugest you clean the back of the car up realy good before you take it in just to make sure you do not get hasled with your warenty. Ruber from the track gets all over the back end to include top of mufflers, in-side back of rear, under the rear vents, wheel wells ect... Good luck and I hope it was just a hot clutch 
Dave
Dave
Drifting
Joined: Jun 2005
Posts: 1,824
Likes: 1
From: Middleboro Massachusetts
At 9000mi. I lost my 5th to 6th gear syncro, had bent shift forks too. This is a common problem. If you check on ZO6Vette.com you will find alot of people that had the same problem. Apparently GM fixed the problem in 04'.
Drifting
Joined: Jul 2005
Posts: 1,343
Likes: 1
From: CA
Originally Posted by xxsvtcobrakidxx
at the track last night first 2 runs went perfect 3rd run i missed 2nd figured ok driver error.4th run boom missed again. on the way home the car was going into 2nd but felt kinda tight any ideas what it could be??? someone told me it might be cause the clutch was very hot. im starting to get worried if its doing it tomorrow morning i think im gonna have to take it back to the dealer. any ideas????
If you like the drag strip I'd strongly recommend you replace the stock shifter with a unit that has positive stops, like the Kirban unit. Stops help prevent bent shift forks, which sometimes occur during the hard shifting of a 1/4 mile run. Your problem doesn't necessarily sound like a bent fork, but prevention is a good thing.
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 32
From: Central Florida
Of course it's possible that you have a tranny issue but...
Most missed shifts at the drag strip are the result of improper hand position on the shifter.
My advice is alway keep your thumb OFF the shifter.
Pull the shifter with cupped fingers (no thumb).
Push the shifter with the heel of the hand, no fingers.
To go 1-2, pull the shifter straight back (remember cupped fingers and no thumb.) Same applies to the 3-4.
To go 2-3, push the shifter toward the radio (remember heel of the hand and NO thumb). This will allow the strong centering springs to find the 3d gear shift gate.
I have about 300 passes with a stock shifter and no tranny issues. When I miss a shift, it's because
(1) I forget to keep my thumb off the shifter, or
(2) My hand slips off the shifter amid shift. To eliminate that, I wear a wet-weather golf glove on the right hand to maintain a good grip with my fingers and palm, again no thumb.
Just a thought.
As the others indicated, you may have overheated the clutch by too slow a release at launch. Worth remembering to get the clutch out fast.
Ranger
Most missed shifts at the drag strip are the result of improper hand position on the shifter.
My advice is alway keep your thumb OFF the shifter.
Pull the shifter with cupped fingers (no thumb).
Push the shifter with the heel of the hand, no fingers.
To go 1-2, pull the shifter straight back (remember cupped fingers and no thumb.) Same applies to the 3-4.
To go 2-3, push the shifter toward the radio (remember heel of the hand and NO thumb). This will allow the strong centering springs to find the 3d gear shift gate.
I have about 300 passes with a stock shifter and no tranny issues. When I miss a shift, it's because
(1) I forget to keep my thumb off the shifter, or
(2) My hand slips off the shifter amid shift. To eliminate that, I wear a wet-weather golf glove on the right hand to maintain a good grip with my fingers and palm, again no thumb.
Just a thought.
As the others indicated, you may have overheated the clutch by too slow a release at launch. Worth remembering to get the clutch out fast.
Ranger
