Robj4

Bill and I have less than full strength in our left pins though, so whilst a DAF Variomatic might be the sensible choice Bill has done something about enabling himself and at the same time inadvertently saved me a great deal of wonga.

My car is into the garage a week on Saturday to replicate the change.

Perimeter

Wonga?

VLJ

Can't believe there are people who find the GT4 clutch heavy. I think it feels too much like an every day clutch, would consider something heavier.

GT4John

Huge fan of the clutch pedal feel. Comparing to other manuals I've owned: 986 Boxster S, 987 Cayman, BMW Z3 and Z4MC - The GT4 pedal is near perfect in weight and communicates the bite better than any other manual I've driven.

Alan C.

I found the clutch on my 10 GT3 to be on the edge of being too stiff for a DD. No issue with the GT4 clutch.

BryanCO

to_riffic_day

When I went from the F80 and into the GT4, I thought my foot was going to go through the firewall because of how light and flimsy feeling the F80 M3's clutch was after driving the GT4 around. lol

Perimeter

There are complaints about the 991.2 GT3 MT6 clutch pedal spring being very light

Diablo Dude

Besides my GT4, I also have a 2004 VW R32.
And when I get into that car..... I get the same "thought my foot was going to go through the firewall" feeling.

OpenWheelFan

With respect to clutch/transmission interface, the entire GT4 experience is solid and tactile. Recently out of a 997 with PDK and so happy about the switch (except for that nagging thought about a 3rd gear failure).

Miles3719

Hello all... I know this thread is over 5 years old so I appologise for resurecting it (and this is my first post) but it still appears to be THE guiding light when it comes to the 981 clutch pedal weight / effort. I am looking at a 981 tomorrow to to hopefully buy (my first Porsche... very excited), but I suffer from clonus in my left ankle which causes it to shake and thus makes operating a heavy/hard clutch rather difficult @Car 6 or anyone ele out ther had any updates on this over the years or is is the 991 423 081 10 part with a few extra washers in the cylinder still the best approach to lighten up the clutch effort required? In other situations it woudl also be replacing master ans slave cylinders, but not sure if anyone had resorted to that or not

Cheers and thanks in advance. This will hopefully this will be my first of many more posts to come if all goes well.

Car 6

Hi Miles3719,
It's pretty cool to hear this is still relevant after 5+ years. The modifications to my GT4 have not been touched since they were installed and they are still working fine at the 37,000 mile mark. I have not heard of any new and/or improved approaches since I made my changes, and I'm a bit surprised. There are quite a few of us out here whose bank accounts don't get healthy until our bodies are over the hill. I would think a "55+ performance shop" in the neighborhood of a 55+ housing development wouldn't be a bad business model. But if my business sense were any good I could have afforded a fast car back when all the body parts worked.
Best of luck with sorting out your issue.

P.S. I also have a C6 Corvette that gave me similar problems. In the C6, the clutch assist spring is a watchspring-like coil spring with the spring wire bent out into straight arms on each side. Pedal use tightens and releases the coil. Some research revealed that the C5 did the same thing with a slightly smaller coil spring--small enough to fit inside the C6 coil. I cut the arms off the C5 unit, squirmed it into the C6 coil and tied the two ends together with tiny hose clamps. It was so strong that the clutch pedal would not return on its own. So I went through the hardware store's selection of screen door springs and got a combination that gave me a workable compromise when attached between the pedal arm and the lower edge of the dash. And I'm just a lottery win away from being able to tell you how to fix a Ferrari F40 clutch.

Miles3719

THANK you for your reply, It is great to hear from you after so much research and using your post as the golden standard. Yep, I completely agree. I am in that similar bot but due to some back / neuroogical (which they cannot find mind you) that is affecting the left side of my body a little but its all in the boat of 'yep, you're getting older', which is why I need to get this GT4 before my body stops behaving all together. I'm nearly 44 and while this wont be a sensible financial decision for sure (just ask the home loan redraw), if I don't do it now then I'll never do it and I am sure a lot of people are in the same boat!.

I tried to find out about the colours also as to which spring was the lightest but came up blank, there does not seem to be a huge amount of information out there on what blue, yellow or orange ones actually do but I am going with yellow like you did. Im wondering if they use the 'darkness' of the colour to determine the assistance the spring provides? I.e Purple is the least assistance, then blue, orange and finally yellow being the strongest? Who knows without buying one of each but that is the best guess that I can come up with so far.

Can't say that I would be looking forward to having the dash removed, but will cross that bridge when I come to it 🤞.

Interesting with the C6, I have also seen similar with the Subaru BRZ and a few other cars using similar mechanisms to provide resistance to the pedals operation, then people that remove the whole thing completely as they want a 'true' experience... Certainly WON'T be doing that.

Thanks heaps for replying, I really appreciate it!! Cheers, Aaron

Miles3719

I will try and send you a PM