10-29-2010, 11:58 AM
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CC Member
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Join Date: Jun 2004
Location: Potomac,
MD
Cobra Make, Engine: West Coast, 460 Ford Racing Crate w/ TREMEC TKO 600
Posts: 732
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Not Ranked
Guys I discovered another issue that I need to remedy, @ .450" of HTOB travel and 1.1 inch of MC stroke, my clutch pedal is now bottomed out against the firewall. (still need to check if clutch disc completely releases tonight)
The way the builder set up my clutch pedal, at the top of travel the clutch pedal pad sits about 2.25 inches BELOW the height of the BRAKE PEDAL pad. I dont like this. My preference is (when both pedals are released) the clutch pedal pad should be the same height or a little (1/4") above the brake pedal.
I too have looked at the 13/16" Wilwood MC, that would be just enough to get the full 0.500" HTOB travel and a tad more if needed with 1.1" mc stroke. If my math is right the 3/4 MC gives a slug of fluid volume 0.485 cubic inches compared to the 13/16" bore MC that gives me a slug of 0.570 cubic inches. Pedal force will go up if I jump up to a 13/16" mc but not too much. I dont think the 7/8" MC is needed in my application.
Patrickt, Mine is a concentric slave, I have no clutch fork, pedal effort relates to combo of the master/slave cylinder diameters, a 7/8" MC on my MCleod concentric HTOB set-up would increase the pedal effort way higher than I want. The sweet spot for my set-up just may be the 13/16" MC. we'll see
Thanks for the inputs.
More later.
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Last edited by kitcarbp; 10-29-2010 at 12:16 PM..
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