Soften clutch pedal push required?
Thread Starter
Instructor
Joined: Aug 2017
Posts: 106
Likes: 7
From: Minneapolis
Soften clutch pedal push required?
Hello - I searched here and Google and coming up nada, I'm asking the ?
I have a 2014 z51 M7, 31k miles, all stock.
While I enjoy leg day driving it, is there any way to reduce the amount a pressure needed to push the clutch pedal? Maybe use a different spring attached to the pedal?
thanks in advance for any ideas.
I have a 2014 z51 M7, 31k miles, all stock.
While I enjoy leg day driving it, is there any way to reduce the amount a pressure needed to push the clutch pedal? Maybe use a different spring attached to the pedal?
thanks in advance for any ideas.
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
Have you considered a pedal extension? In theory your leg wouldn't have to extend as much to get the clutch fully in.
https://www.ecklerscorvette.com/corv...sion-2014.html
This would not change the effort required or the pivot point but its an easy mod to test. Compared to my Nissan 350Z the C7 clutch is very easy to push in. The Nissan was like having a gym membership! On the flip side the lightest clutch pedal I have ever experienced was a Volvo C30 (nobody bought these they are very rare), I swear you could push it to the floor with just a toe!
https://www.ecklerscorvette.com/corv...sion-2014.html
This would not change the effort required or the pivot point but its an easy mod to test. Compared to my Nissan 350Z the C7 clutch is very easy to push in. The Nissan was like having a gym membership! On the flip side the lightest clutch pedal I have ever experienced was a Volvo C30 (nobody bought these they are very rare), I swear you could push it to the floor with just a toe!
Drifting
Joined: Feb 2005
Posts: 1,456
Likes: 173
From: San Jose Ca
Have you considered a pedal extension? In theory your leg wouldn't have to extend as much to get the clutch fully in.
https://www.ecklerscorvette.com/corv...sion-2014.html
This would not change the effort required or the pivot point but its an easy mod to test. Compared to my Nissan 350Z the C7 clutch is very easy to push in. The Nissan was like having a gym membership! On the flip side the lightest clutch pedal I have ever experienced was a Volvo C30 (nobody bought these they are very rare), I swear you could push it to the floor with just a toe!
https://www.ecklerscorvette.com/corv...sion-2014.html
This would not change the effort required or the pivot point but its an easy mod to test. Compared to my Nissan 350Z the C7 clutch is very easy to push in. The Nissan was like having a gym membership! On the flip side the lightest clutch pedal I have ever experienced was a Volvo C30 (nobody bought these they are very rare), I swear you could push it to the floor with just a toe!
Only way to reduce the pedal effort is to lengthen the pedal (which increases the stroke) or change the master cylinder to a smaller bore (which also increases the stroke).
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
What about the ZR1 or McLeod dual disc? Perhaps the effort is much lighter on it, but I don't have a way to check. On paper it should be.
Has anyone driven both and noticed any difference between the ZR1 and Z06 clutches?
Has anyone driven both and noticed any difference between the ZR1 and Z06 clutches?
Thread Starter
Instructor
Joined: Aug 2017
Posts: 106
Likes: 7
From: Minneapolis
<thanks for the info about the master cylinder. I might just have to live with walking lopsided from a larger left leg, haha>
Last edited by Edinacorvette; Jan 10, 2019 at 03:30 PM.
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
Funny, lol. My left calf is now larger too. I read guys we're swapping the c5 spring to the c6 to reduce the pressure. I couldn't find an answer, could the c5 fit the c7?
<thanks for the info about the master cylinder. I might just have to live with walking lopsided from a larger left leg, haha>
<thanks for the info about the master cylinder. I might just have to live with walking lopsided from a larger left leg, haha>
Thread Starter
Instructor
Joined: Aug 2017
Posts: 106
Likes: 7
From: Minneapolis
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Le Mans Master
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From: Sausalito CA
FWIW I'd thick a stiff clutch is related to the spring fingers on the pressure plate to throw out bearing.
I don't think there is an easy cure, yet some options are posted above.
I also believe there is a tension return spring on the pedal to the under dash framing, yet I don't think
changing that is what the OP is complaining about.
Lastly I didn't see a mention if this was the factory clutch or a replacement.
If replacement, well maybe there is an assembly or product issue.
So a clutch fluid flush may be the only easy option and then report if this improves the situation.
Good luck.
I don't think there is an easy cure, yet some options are posted above.
I also believe there is a tension return spring on the pedal to the under dash framing, yet I don't think
changing that is what the OP is complaining about.
Lastly I didn't see a mention if this was the factory clutch or a replacement.
If replacement, well maybe there is an assembly or product issue.
So a clutch fluid flush may be the only easy option and then report if this improves the situation.
Good luck.
Safety Car
Joined: Jul 2001
Posts: 4,609
Likes: 490
From: Houston, Texas
St. Jude Donor '20-'21-'22-'23
On the C6 many people simply remove the clutch pedal spring altogether without issues, and also without long term issues as well. Much more comfortable to drive.
The original equipment C6 spring was uncomfortable, and switched to the lighter spring, or removing it completely, was much more comfortable car to drive. After years of either modification I never heard of any resulting issues.
I have not yet even looked up under the dash to see if the C7 even has a spring...
.
The original equipment C6 spring was uncomfortable, and switched to the lighter spring, or removing it completely, was much more comfortable car to drive. After years of either modification I never heard of any resulting issues.
I have not yet even looked up under the dash to see if the C7 even has a spring...
.
Last edited by HorsePower Junkie; Jan 18, 2019 at 10:39 PM.