CLUTCH, Hydraulic vs Linkage

[Brad Zaskowski]

Don't waste your time with the hydraulic clutch linkage unless a consistent reaction time is not a concern of yours. When the fluid in the linkage is hotter your r/t will be quicker and when it is colder your r/t will be slower. If your line runs near the headers that will throw another fluid temp factor into the mix. Take the time and build a mechanical linkage, you will not be disappointed.
I made 4 time runs and ran 5 rounds of eliminations at my last race. My reaction times ranged from .017 to .041 for 9 runs, 6 of them were between a .025-.030. I don’t think that is possible with a hydraulic linkage, especially since over the weekend our air temps ranged from 55*-80*.
We built the linkage in Charley Downing's 2010 mustang stocker and from what I could tell by the 16 runs I put on it in Belle Rose this past spring his is just as consistent as the one in my car.