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Old Jun 16, 2024 | 06:52 PM
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Default Hydraulic clutch question

For those who installed a hydraulic clutch setup, have you had any issues with the firewall fatiguing?
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Old Jun 16, 2024 | 07:19 PM
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I havent and its been 3 or 4 years I believe. Mines bolted in behind the brake booster so It shouldnt fatigue at all
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Old Jun 16, 2024 | 11:02 PM
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Originally Posted by Fly skids up!
For those who installed a hydraulic clutch setup, have you had any issues with the firewall fatiguing?
Here is my spot (1978). Steel backing plate. This is on the inside of the car. below the brake booster.
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Old Jun 17, 2024 | 11:25 AM
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Originally Posted by Rescue Rogers
I havent and its been 3 or 4 years I believe. Mines bolted in behind the brake booster so It shouldnt fatigue at all
That's good to hear.
Originally Posted by cagotzmann
Here is my spot (1978). Steel backing plate. This is on the inside of the car. below the brake booster.
Looks good and sturdy. I can't really get a good look at that area in my car. To much stuff in the way.
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Old Jun 17, 2024 | 03:19 PM
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Mine is moved up m\next to the Brake master cylinder- steel plate and 1/2" aluminum plate in the engine compartment-

I also moved the fuse panel- so it opened up a lot of real estate!

No flex at all-





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Old Jun 17, 2024 | 03:41 PM
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Originally Posted by Richard454
Mine is moved up m\next to the Brake master cylinder- steel plate and 1/2" aluminum plate in the engine compartment-

I also moved the fuse panel- so it opened up a lot of real estate!

No flex at all-




Nice setup there Richard.
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Old Jun 17, 2024 | 05:33 PM
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I would decide whose system you are going to use and go from there...Mines an old MDL prototype I designed but they went in another direction...they don't like retooling for compound angles and there are better ways than what I had to modify for them.

They have new offerings using the existing z bar mount that is pretty smart and a great idea. Wish it was mine
Looked on their site and it's gone.....hmmm

Last edited by Rescue Rogers; Jun 17, 2024 at 06:22 PM.
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Old Jun 17, 2024 | 06:19 PM
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this one bolts in where the stock clutch pedal was...dont know anything about the company
https://www.malwoodusa.com/hydraulic...let-reservoir/
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Old Jun 17, 2024 | 06:24 PM
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this is the one that bolts to the Z bar location I was talking about...took some time to find the correct company...I had said CPP but it was MDL
https://www.moderndriveline.com/shop...ch-master-kit/
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Old Jun 17, 2024 | 06:31 PM
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Originally Posted by Rescue Rogers
this one bolts in where the stock clutch pedal was...dont know anything about the company
https://www.malwoodusa.com/hydraulic...let-reservoir/
I like the idea of the under the dash master cylinder. But I'll most likely go with the Sliver Sport Transmissions setup - if I even do this swap. It seems like it doesn't work with the stock exhaust system.
https://www.corvetteforum.com/forums...ossmember.html
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Old Jun 18, 2024 | 03:01 PM
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I modified an early Camaro kit from McLeod to bolt to the master cylinder support so it's on steel and not fiberglass. Been using it for years with no issues.

It was a plan for them to take my changes and make a kit...but they never followed through on it.

JIM
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Old Jun 18, 2024 | 03:05 PM
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Originally Posted by Rescue Rogers
this is the one that bolts to the Z bar location I was talking about...took some time to find the correct company...I had said CPP but it was MDL
https://www.moderndriveline.com/shop...ch-master-kit/
I like that concept...but these kits are a heck of a lot of $$$ to develop a solution for a non-existent problem.

Well setup stock linkage is the most positive feel you'll ever get. I went to hydraulic due to the fact I stuck a turbocharger in the gill area and it was getting real tight with steering, clutch cross-shaft and a turbo all occupying the same real estate. I had it figured out but then the opportunity to try hydraulic came along so I went that way.

JIM
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Old Jun 18, 2024 | 03:52 PM
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mine was a lot cheaper as well...I think $300 back 4 or 5 years ago....theres not much to it, just getting the geometry of the mount so you push straight in, a decent pushrod with a Heim joint and a good hydraulic cylinder. I think its 3/4 of an inch diameter for the correct throw for the corvette...I would have to look but Im sure Wilwood has the correct one. chevy bellhousings are all probably the same depth. I like the bolt on McLeod hydraulic throw out bearings
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Old Jun 18, 2024 | 03:54 PM
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Thanks to all who responded. The deed is done and I ordered a complete Tremec TKX kit with their hydraulic clutch setup. I spoke to Shane from Silver Sport Transmissions and asked about firewall fatigue. He said that there was issues with the mid year cars and did provided an additional support bracket for those cars in their kits.
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Old Jun 18, 2024 | 05:48 PM
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you are going to love it
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Old Jun 23, 2024 | 01:10 AM
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The biggest factor is the Clutch itself that You are going to use. If you're planning on using an old school stage 9 super clutch rated for 1800 HP that takes Both feet to depress then you're going to have a lot of Firewall Flex. To the point where you will see the Brake Booster Rise when You depress it. If you're going to use a modern street clutch or a twin disc clutch that's close to stock peddle pressure, then there should be very minimum flex.
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Old Jun 23, 2024 | 04:12 AM
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The kit included a McLeod street pro clutch kit, what ever that means. I start to worry when I hear the word "pro" associated with the car parts😬. I was told it's not hard to depress.

Last edited by Fly skids up!; Jun 23, 2024 at 04:31 AM.
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Old Jun 23, 2024 | 09:28 AM
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Originally Posted by Fly skids up!
The kit included a McLeod street pro clutch kit, what ever that means. I start to worry when I hear the word "pro" associated with the car parts😬. I was told it's not hard to depress.
I'm sure others will chime in who have used that Clutch.
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Old Jun 23, 2024 | 12:23 PM
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I did search on this forum on the McLeod street pro clutch kit and it was very favorable so I'm really not too concerned about pedal effort. I also drove a friends 71 Cuda with the Tremec setup too. That car is north of 600HP and it was surprisingly easy to depress the clutch pedal. However I may reinforce that area of the firewall anyway.
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Old Jun 23, 2024 | 12:59 PM
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All the McLeod single disc clutches use the same pressure plate so they have the same feel. To increase the power they can handle, all that needs changing is the clutch disc.
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