ghostmech

I was wondering why we would have to go to a complete tranny to get sequential shifting and started browsing the internet.....came across this from MasterShift

http://mastershift.com/new-street-manual.html

I wonder if its possible to get the seq shift from this setup?

Hardware:



or this:



and this shifter:



Website:

http://mastershift.com/new-street-manual.html

What do y'all think? Maybe MasterShift is working on a bolt on for the C6...don't know

Lawdogg

If you still have to use the clutch, what's the point?

Viper_Vette

I guess with that setup you can at least eliminate any mis shifts.

haljensen

Nearly all motorcycles are sequential with clutches. Works fine. It's faster since the selector doesn't have to go thru neutral to get the next gear. I'd be afaid to use the shifter pictured above by the OP, LOTS of little linkage adjustments to change (or fail).

GregJ

The Mastershift sequential shift mechanism is close to being ready. It works pretty well but still havs a little fine tuning to do. It is much better than originally presented 2 years ago. Will let you know when it gets there.

GregJ

Viper_Vette

I found this video of it in action, but can it shift faster?

http://www.youtube.com/watch?v=zUbi1epN0-c

GregJ

Some of the advantages to a sequential shift like this is that you can stack shifts. Say for example you are in 6th gear and are coming to a corner that you know you want to exit in 3rd gear. With the Mastershift you can click down 3 gears on the selector, brake hard (still in 6th) and then engage the clutch when you want 3rd gear and you are automatically in 3rd, much like the pre-selector gearbox of yester-year.

jayzelazo

I talked to them and it's currently being tested in 3 vettes by various shops, Pratt and Miller being one.

I think it would be very advantageous on a road course, and thats why I am following it closely, as my car is basically a Time Attack/Autocross car that I still street drive. You can bank shifts, so you could do all your downshifting while still on the gas, and then just stab the clutch and it would go into the gear you preselected before the corner.


THey say it should be released for the Z06 after SEMA.

You will be able to use the 07 Auto Vette steering wheel with paddle shifters, so you won't need their paddles or lever (although I still would want a lever as well.) The whole setup will be around $3000 and the tranny does not have to come out to install this.

GregJ

The 1 - 2 shift type shift (forward to back or back to forward ) is lightening fast with this mechanism. The hard movement is a 2 - 3 type shift where there is a cross over in the gate. That particular movement still provides a slight delay compared to the 1 -2 type movement. The shift is made just as well, just a little slower. When using the sequential in a speed shift mode, like on the track, that slight delay could pose some problems ( you still have a clutch action to time with the shift movement). However they are working on the matter and I think there will be a solution.

ghostmech

Thanks for the insight Greg. Ever since I saw Lou's in car video of his Seq tranny, I thought it would be very cool to be able to shift like that (like the old Hurst inline 4 speed shifters) without having to fork out $25,000.

I also figured a computer guru could devise a control box to work in conjuction with the shifter and engine control to slightly drop the RPMs for a specified period of time during the shift to make the clutch unload a bit for clutchless power shifting.....(I gotta stop these foolish thoughts ;-)

BTW, I have a gut feeling that Chevy and the C7 will offer some sort of sequential manual shifting for their Zs at some point during its production run....could be wrong.

GregJ

It will be cool when they figure it all out...

whtturbot@aol.com

ghostmech

They can use my 2009 completely stock Z (still) as a test car when they get it to that point

haljensen

Sounds like there might be a lack of understanding on the difference between a sequential transmission and a sequential shifter. Adding complex linkage to the trans doesn't make it a sequential trans. The C6 single rod external linkage is complicated enough, FIVE rotational positions and THREE push/pull positions. GM has been designing and building versions of the single rod shifter since the early 60's (anybody else ever work on a Corvair trans?). A sequential trans requires new transmission INTERNAL parts.

IE;
Sequential linkage downshift from 6th to 1st requires 5 lever/button motions that have to operate 15 internal trans linkage motions.

Sequential trans downshift from 6th to 1st requires 5 lever or paddle/button motions.

Current trans needs 2 lever motions, 6th to neutral to 1st.

0Louis @ LG Motorsports

Do you realize the strain on the synchros while doing that?



IMO, this is a gimmick really.

And for the record, ALL of the motorcycles, are all dog ring engagement. I have never worked on a motorcycle that has synchros.

MTIRC6Z

I have a question: Who on earth (when racing) has their Z06 in SIXTH gear?

Cheers, Paul.

Wah

Umm, it's for example ?

GregJ

Ever been to Le Mans???

It was just an example, give me a break there please...

Z06Norway

guys who go fast

Nurburgring
SPA
LeMans

to mention a few

Rune

0Louis @ LG Motorsports

You would never use 6th, with this gear box, and this mastershift, at Lemans

Do you work for Pratt?