First off...605rwhp/540rwtq...Stock rear and trans...Textralia OZ700

Put on some MT ET Street Radials today and didn't do any hard lauches or power shifting but after a little while messing around I tried doing a high RMP shift from 1 to 2 and it wouldn't let me go into gear then the same thing happened again from 2 to 3.

Any ideas ? ? ? Syncros

Should I get on the phone with Rodney @ RPM?

Thanks for the help,
John
Levittown, NY

 

Sounds like it could be a clutch issue rather than a tranny issue. Was it letting you shift at lower RPM's?

 

Normal low RPM driving was fine. Reverse felt a little hard to put it into gear but it still went in. If it were a clutch problem what would happen?

 

I can't give an answer, but welcome to the club.

I have the same problem on a hard run, it can happen in any gear. It doesn't happen with wheelspin, so I'm sure it's a product of making big power and stickin it with good tires.

One day at the track I had a nice launch with a 1.50 60' and it locked me out of shifting into 2nd! Other times it's locked out of 3rd and 4th. See the 10.6 in car video in my sig, this is the only way I can get down the track, by completely lifting the throttle on each shift.

It seems to be a disengagement problem under load. I also have a Tex clutch and maybe that's the nature of it. I recently installed a throwout shim with an adjustable master. I have not been back to the track to test yet, and on the street I spin too much to repeat the problem. Sad part is one of our tracks closes this weekend and today got rained out. The other track has one more TnT in 2 weeks then it closes too. Otherwise I have to wait for next season to know...

I'm curious if anyone has this problem that uses a twin disk clutch? Because if the problem continues that's one idea for a solution. My other idea is convert to auto and forever be done with missed shifts!!

I'm interested in your attempts to solve, and the results if you do. I'll post up when I can confirm my results.

 

I have had similar disengagement issues with the Tex twin and Triple. It seems to be an issue with the hydraulics and the pressure plate design. I am sure the Tick master will help or solve the problem, but there won't be a Tex clutch going back in my car any time soon.

 

Interesting information.. I was thinking I was having hydraulic issues as well with my ExoSkel, but changed the tranny fluid, clutch fluid and things actually got worse. The gear grind in fourth is a sure sign my tranny needs a rebuild..

 

I have a RAM Dual Disc and 685/715 and never had this problem.

 

My problem was similar. My tranny wouldn't shift into first sometimes. It eventually got worse and 3rd and 4th started grinding some. I changed and bled my clutch fluid several times which helped a little but problem kept getting worse. My tranny just came apart and it was perfect. My flywheel, however, wasn't so good. This triple lasted about 2K miles, about the same as the twin before it. Both were set up according to Tex for disengagement, etc when installed. I now have a Ram twin disk puck clutch going in as well.

 

You are kidding me? Let me know what happens when you put the new clutch in. So both your clutches were Tex?

 

i have also had a similar problem,i have a spec and a aluminum flywheel,550rwhp/522rwtq and i have been told that its the t-56 drama

 

Same clutch, rebuilt as a triple the second time. In both cases I broke the new clutches in for a good 1000 miles too. The common denominator being the pressure plate and lack of dissengagement. How much of the dissengagement issue was caused by stock hydraulics I don't know. Clutch will be back together with the Tick master next week so we will see.

 

I think it is definitely a clutch issue now I need to pick a clutch...GOODBYE TEXTRALIA

 

 

Hey John, just to let you know, I think the adjustable master from Tick really did the trick. I hit the track this weekend and didn't get locked out or miss a shift. It will take more time to know if it's cured 100%, but is looking good so far. Thought you might like to know, this part might fix the problem so you can keep your clutch and save a couple grand. Watch me hitting the gears in these vids: http://forums.corvetteforum.com/show....php?t=2151635

 

The tick appears to be a good fix. Lots of info on ls1tech.com. To check if you have the problem, stop on a flat road, press clutch in and shifter in 1st gear. Run the RPMs up to 4k and see if the car starts to move (with the clutch still pressed). If the car moves, the clutch isn't disengaging and the Tick adjustable master fixes this issue according to the posts by the manufacturer. They have a video of a driver shifting after the adjustable master install and it looks good.

 

I am going to have to try that on my days off. I have an adjustable master on my car. If my car starts to move revving to 4krpm which way do I adjust it?

 

I'm in the same boat, I haven't tested mine yet but I think I have the issue since high rpm shifting is very difficult. I just found out about the Tick master on LS1tech a couple days ago and will test my car when it stops raining

 

I am just waiting for a day off. I need to know which way to turn because I can fit under my dash. I am going to have my buddy do it since he is small, but I need to tell him which way to turn to adjust it.

 

My research tells me I need to turn counter clockwise to lengthen the rod and clockwise to shorten.. It appears I need to lengthen the rod. I will do it tomorrow. I tried today and I cant fit under there to get the clip off and 9/16th wrench on it.

 

But only with 520/470