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Old 10-05-2020, 08:36 PM
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bwcobra15 bwcobra15 is offline
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Join Date: Oct 2000
Location: Midlothian, TX
Cobra Make, Engine: Hurricane 427 Cobra #HM2008, Craft Performance 427w 600hp/600tq, TKO-600 close ratio, original Smiths gauges, lucas switches
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Quote:
Originally Posted by PaulProe View Post
Bobby
Going down is going the wrong direction. The smaller puck will move LESS fluid with the same amount of movement.

According to the Tilton installation page (https://tiltonracing.com/wp-content/...ies-HRB-V2.pdf) According to their page, 3/4" would work if you get about 1.3" of cylinder movement. Which I suspect you are not, especially since you lengthened the pedal. You probably should be looking at a 13/16" cylinder and figuring out how to modify your pedal lengths and stops so you are getting 1-1/4" of cylinder puck movement.

Paul

Paul,

This weekend I was able to get the wife to work the pedal while I attempted to get hands, tape measure and iPhone all up in there while laying on the driveway for some rough measurements ...

at rest it shows about 1-3/4", and with the pedal fully depressed it shows 2-3/8" - for a total movement of about 5/8" (0.625").

The thing is: when I am driving from a stop, if I have the clutch FULLY pressed in, (and i'm guessing by "feel") when i slowly release, the pedal probably moves two-thirds of the full range before the clutch begins to engage and the car starts to move. So it seems to me the clutch is fully releasing.

AND - I dont think there is a larger Wilwood M/C than .750 in the style I'm using. Actually I found another model that is similar, in 13/16", but with a shorter stroke (1.25" vs. 1.40")
https://www.wilwood.com/mastercylind...emno=260-15092

Anyway, i'm leaving in 33 hours for San Marcos - 252 miles each way - with hundreds of hill country miles in between. Hope it behaves !

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Bob Worley
Hurricane HM-2008 build is done!! (for now....)
Craft Perfomance 427W / 600hp / 600tq - TKO600

I love it and I need it I bleed it ~ Yeah it's a wild hurricane ~ Alright, hold tight, I'm a highway star!!

Last edited by bwcobra15; 10-06-2020 at 08:08 AM..
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