C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Sequential shift

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Old Jul 6, 2019 | 08:25 PM
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Default Sequential shift

A tranny without a clutch? LOVE to replace my A4. Anybody done this swap?
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Old Jul 6, 2019 | 10:04 PM
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Originally Posted by PoprocksC4
A tranny without a clutch? LOVE to replace my A4. Anybody done this swap?
Would love to know if this has been done.

like if someone has put in an SMG clutchless manual paddleshift in their c4 or c4 zr1
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Old Jul 7, 2019 | 01:53 AM
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Can you just install a TransGo shift kit and set it up for manual shifting??
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Old Jul 7, 2019 | 04:26 AM
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https://www.lgmotorsports.com/corvet...nsmission.html
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Old Jul 7, 2019 | 05:45 AM
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A C4 with a Lenco transmission:

This car is for sale nuw, but without engine, transmission etc.
No, it´s not my car but I have bought the turbo etc from it.
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Old Jul 7, 2019 | 11:04 AM
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Whoa, At $28k!? Sorry i asked. Its cheaper to buy a C6 w/ a manual. But thanks for the info.
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Old Jul 7, 2019 | 11:10 AM
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Originally Posted by PoprocksC4
Whoa, At $28k!? Sorry i asked. Its cheaper to buy a C6 w/ a manual. But thanks for the info.
A C4 with this type of transmission you ask about is better than a C6 !
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Old Jul 7, 2019 | 12:44 PM
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Roadkill had an episode with a Jericho clutchless 4 speed installed in a project. They got a kick out of it. I never searched for it too hard but I see their transmissions out there for 3 grand or so. Maybe can find one on eBay or racing junk’s for sale site. Sequential shift sounds fun until you realize the “cheap” end of it is 28K. I say cheap because I’ve seen them going for over 50 grand by some suppliers!
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Old Jul 7, 2019 | 12:52 PM
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I've thought about this as well for my '93A4. I have 3.73s & rebuilt 700r4 with shift kit. I like to manually shift it, & I chose to keep a converter with factory stall because it feels more "connected" when driving on backroads & it also barks tires on upshifts even at low speed.

What I've thought about is a ratchet shifter like a B&M. I've seen a couple of C4s with this, it takes some interior modding but it looks really nice with the **** up close to the steering wheel, like a racecar. I think this, with a nice built 700, shift kit, & nice shifter might give you the control & engagement you want when driving without going nuts on a Jericho or whatever.

You can also do manual valve body on the auto but I've heard not so good things about them when used in a street-driven daily or semi-daily car. You can get decent manual control with a shift kit.
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Old Jul 7, 2019 | 09:57 PM
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Originally Posted by PoprocksC4
Whoa, At $28k!? Sorry i asked. Its cheaper to buy a C6 w/ a manual. But thanks for the info.
What did you expect it to cost?
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Old Jul 8, 2019 | 08:03 AM
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I had no clue what to expect as far as cost but I was shocked to find a price tag that high. I guess "if you have to ask...." applies here. I like the idea of looking for used on racing junk. For now I'll continue shift my A4 "manually" when i want to get a little "bark" out of the tires.

Last edited by PoprocksC4; Jul 9, 2019 at 09:21 AM.
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Old Jul 8, 2019 | 02:14 PM
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I've looked into it in the past, it has been done a few times on here. It was always too custom, nothing really off-the-shelf, and prohibitively expensive to me.
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Old Jul 8, 2019 | 08:21 PM
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4l60e and paddle shifter.
https://www.summitracing.com/search?...e%20shifter%20
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Old Jul 8, 2019 | 09:03 PM
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Paddle shifted 60e is definitely the easiest route.
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Old Jul 8, 2019 | 09:45 PM
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Originally Posted by JoeNova
Paddle shifted 60e is definitely the easiest route.
Is that a robot clutch slave cylinder (like bmw smg) or a slushbox with torque converter
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Old Jul 8, 2019 | 09:50 PM
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Originally Posted by dizwiz24
Is that a robot clutch slave cylinder (like bmw smg) or a slushbox with torque converter
Its just like the garbage GM used with the 2006 Corvette A6 Trans. It will still shift slow.
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Old Jul 8, 2019 | 09:59 PM
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Default hurst his and hers shifter

Originally Posted by psychodiagnostik
I've thought about this as well for my '93A4. I have 3.73s & rebuilt 700r4 with shift kit. I like to manually shift it, & I chose to keep a converter with factory stall because it feels more "connected" when driving on backroads & it also barks tires on upshifts even at low speed.

What I've thought about is a ratchet shifter like a B&M. I've seen a couple of C4s with this, it takes some interior modding but it looks really nice with the **** up close to the steering wheel, like a racecar. I think this, with a nice built 700, shift kit, & nice shifter might give you the control & engagement you want when driving without going nuts on a Jericho or whatever.

You can also do manual valve body on the auto but I've heard not so good things about them when used in a street-driven daily or semi-daily car. You can get decent manual control with a shift kit.
I am in the process of fitting a 4 speed Hurst his and hers shifter into the console of my 1987 C4. It will be the first one that I have ever seen done. It has actually been pretty easy so far.
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Old Jul 9, 2019 | 08:39 AM
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Originally Posted by dizwiz24
Is that a robot clutch slave cylinder (like bmw smg) or a slushbox with torque converter
Its still a GM tranny, and it still shifts slow. You want a robot clutch, better look elsewhere or design one.

Last edited by vader86; Jul 9, 2019 at 08:40 AM.
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Old Jul 9, 2019 | 08:48 AM
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Originally Posted by ChumpVette
Its just like the garbage GM used with the 2006 Corvette A6 Trans. It will still shift slow.
A shift kit and a trans tune and it will shift much faster.
Paddle shifters can be programmed to control the 2 shift solenoids very quickly for upshift/downshift.
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Old Jul 9, 2019 | 11:13 AM
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Originally Posted by JoeNova
A shift kit and a trans tune and it will shift much faster.
Paddle shifters can be programmed to control the 2 shift solenoids very quickly for upshift/downshift.

PDK fast?

It's still a GM auto.
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