Project- Adjustable Big Bore Clutch Cylinder S197
Just thought I'd share what I'm currently working on. This is a project I've had in mind for over a year now and finally had some time this week to make it happen. I'm currently developing a fully adjustable big bore master cylinder that would fit all V8 S197 cars 05-14 GT / GT500 07-14. The first prototype in the photos will be going in my 08' GT500 once it completes stress testing on a custom built CMC testing rig I built last year for testing production master cylinders I produce for another vehicle brand.
If there is enough interest I may start producing more of these for S197 owners.
The prototype is a 7/8" bore and adjustable from 0% to +30% more fluid then oem. I'll be complementing the new MC with adjustable bottom pedal stop and top stop. These could in future be made with a 13/16" bore as well that would give an adjustable 0 to +15% addition fluid flow over stock or even simply OEM bore but with the adjustable features for those who's engagement is too high now.
As shown this setup is a fully custom built CMC body, clutch rod and adjustable steel clevis end with a pressed bronze bushing. The rest of the internals are from a Tilton 76 Series 7/8" master cylinder so rebuild kits are readily available off the shelf at Summit, Jegs, etc should they ever be needed down the road. The unit shown here was manually machined and only a rough prototype to start testing with.
The idea behind this is for years I've wanted an adjustable clutch pedal setup for the various S197 Mustangs I've owned as once an aftermarket clutch was installed there was always room for improvement in the disengagement department. Second I believe having a larger bore to push a higher fluid volume, faster with less pedal travel will greatly help with the hard shifting lock outs and notch shifting, just as the 7/8" Tick master cylinders do for the bowtie boys with the same transmission as our GT500's. I've always felt the oem master cylinders were weak and barely capable of fully disengaging the clutch, especially aftermarket setups where I see a lot of guys having clutch troubles. The 13/14 GT500 got a slightly bigger bore aluminum master cylinder as Ford recognised the regular plastic units flexed too much under heavy load and didn't have enough capacity to disengage their new clutch setup satisfactorily. However those 13/14 cmc's are still a fixed setup with less flow capacity then these, no adjustability and still have the terrible plastic end links that break off.
A little background, I've been manufacturing adjustable clutch products for Nissan/Infiniti vehicles for the past 6 years and manufacturing aftermarket master cylinders solutions for them for the past year. The equipment to manufacture these is already in place should this project move forward beyond this first prototype. Please note at this time I have nothing to sell here, just looking to see if there is any owner interest if I was to begin manufacturing these in small qty's down the road. Should any kind of production move forward I would happily become a Forum supporting vendor just as I currently am at other non Ford sites.
What do you guys think? Is this something you might be interested in seeing made commercially available in the aftermarket?