Clutch Pedal Feel?
Thread Starter
Safety Car
Joined: May 2016
Posts: 4,669
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From: Erlanger, Kentucky
Clutch Pedal Feel?
Maybe someone can answer a question for me. How is the clutch pedal supposed to feel when pressed at higher RPM's? My clutch and pedal function normally and shifts are fine but I can feel the engine through the clutch pedal when RPM's go above 3000 and I am doing moderate to spirited driving. This would happen sometimes when I had the stock master cylinder but seems more noticeable since I installed a Tick adjustable MC.
Is this normal with the Tick? What else could be going on?
I have done a lot of searching and I have found that people say everything from "this is normal", "the clutch may have an imbalance", "the throw out bearing may be going out", "the pilot bearing may be bad", etc. But nothing truly definitive.
I do intend to change the clutch, pilot, and slave/throw out bearing eventually so I may not worry about it and just enjoy the car.
I am just trying to figure out what is normal for a Z06 Corvette since I have never had a car like this.
Is this normal with the Tick? What else could be going on?
I have done a lot of searching and I have found that people say everything from "this is normal", "the clutch may have an imbalance", "the throw out bearing may be going out", "the pilot bearing may be bad", etc. But nothing truly definitive.
I do intend to change the clutch, pilot, and slave/throw out bearing eventually so I may not worry about it and just enjoy the car.
I am just trying to figure out what is normal for a Z06 Corvette since I have never had a car like this.
Thread Starter
Safety Car
Joined: May 2016
Posts: 4,669
Likes: 1,849
From: Erlanger, Kentucky
And also, below 2500 I don't feel anything out of the ordinary when pressing the clutch and shifting. It is smooth.
Not sure if this is relavant or not but, when I press the clutch pedal just enough until I feel the slave starting to push on the clutch release fingers, I can feel a bit of unevenness. Is this a symptom of a bad throwout/slave cylinder?
Just in case, I have placed an order for a new GM Slave, remote bleader, and an LS7 clutch and flywheel. The car drives and shifts fine and as far as I can tell there is no clutch slip. But I don't know what condition the clutch or the slave is in and the vibration/feel through the clutch pedal does have me concerned.
Last edited by Spaceme1117; Jun 27, 2017 at 11:51 AM.
Thread Starter
Safety Car
Joined: May 2016
Posts: 4,669
Likes: 1,849
From: Erlanger, Kentucky
The more I am reading and investigating, the more I am thinking that my issue is the slave cylinder. The previous owner of the car kept all of the service record receipts for all of the work that was done to the car. At around 35,000 miles the transmission was replaced for some reason and then a few thousand miles later the clutch was also replaced because it was burnt up.
But there the slave was never changed so the one in the car is still the original. More than likely it is time it was changed.
But there the slave was never changed so the one in the car is still the original. More than likely it is time it was changed.
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
I'm just curious about this, watching... but have a question along the same line as the poster above. How long do you have the clutch to the floor that allows you to notice this? Above 3000RPM usually means a very quick shift for me.
Thread Starter
Safety Car
Joined: May 2016
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From: Erlanger, Kentucky
I can immediately feel it whether shifting fast or just in normal driving.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
Have you ever measured where the clutch is engaged when depressing the clutch. Since I autocross/HPDE my Corvette often, a club member, former GM chassis engineer, suggested I find the engagement spot and add a 1/2" for safety and place a clutch stop at that point. My clutch now stops about 3/4" from the floor.
Thread Starter
Safety Car
Joined: May 2016
Posts: 4,669
Likes: 1,849
From: Erlanger, Kentucky
Have you ever measured where the clutch is engaged when depressing the clutch. Since I autocross/HPDE my Corvette often, a club member, former GM chassis engineer, suggested I find the engagement spot and add a 1/2" for safety and place a clutch stop at that point. My clutch now stops about 3/4" from the floor.
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Burning Brakes
Joined: Jul 2005
Posts: 788
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From: Cedar Rapids IA
Have you ever measured where the clutch is engaged when depressing the clutch. Since I autocross/HPDE my Corvette often, a club member, former GM chassis engineer, suggested I find the engagement spot and add a 1/2" for safety and place a clutch stop at that point. My clutch now stops about 3/4" from the floor.
Thread Starter
Safety Car
Joined: May 2016
Posts: 4,669
Likes: 1,849
From: Erlanger, Kentucky
I just installed this past weekend a Tick MC and I'm pretty sure I have it installed correctly so I don't think I am over stressing the the slave. What I am feeling in the pedal happens once I feel the clutch fully disengage, through the stroke until, to the floor and until I shift and then let off the clutch.
I also think the previous owner may have known that he needed a new slave, clutch, or both (or at least knew something wasn't quite right) as he had a new GM master cylinder installed a few thousand miles before he sold the car.
Regardless, I am set to swap out the clutch with a new slave, LS7 clutch and flywheel, and remote bleeder this weekend. I know it will be a bit of work but I am sure I can do it.
I also think the previous owner may have known that he needed a new slave, clutch, or both (or at least knew something wasn't quite right) as he had a new GM master cylinder installed a few thousand miles before he sold the car.
Regardless, I am set to swap out the clutch with a new slave, LS7 clutch and flywheel, and remote bleeder this weekend. I know it will be a bit of work but I am sure I can do it.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
Many years ago in the Forum there was some discussion in the Tech section about over extending the clutch and several of the racers had articles on driling a hole in the clutch extension and making a stop or using a ready made one. I have had mine on for almost 15 years without a problem. On the C2/C3 Corvettes it happened quite often if the shifter fork was not properly calibrated on the vane type clutches. Center Force clutches came with some wiring to prevent it to happen.
whttps://www.corvetteforum.com/forums/c5-tech/1535375-clutch-pedal-stop-installed-writeup-pics.html
Also, ECS also has one:
http://www.eastcoastsupercharging.co...tegory_id=1385
whttps://www.corvetteforum.com/forums/c5-tech/1535375-clutch-pedal-stop-installed-writeup-pics.html
Also, ECS also has one:
http://www.eastcoastsupercharging.co...tegory_id=1385
Acct Suspended APR 2026 by request
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2020 Corvette of the Year Finalist (performance mods)
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do you know if your tick is their standard bore or oem size?... their standard is bigger than oem so it moves more fluid which will allow you to not have to press the pedal all the way to the floor to disengage the clutch... they also offer one in oem sized bore that will keep the pedal feeling like stock... if you have the standard bore and it is adjusted properly then maybe you won't have to push the pedal all the way to the floor hence not noticing the vibration