I'll post this but I doubt if it helps anyone.
going through posts here and various list of info I found the following comments
An OEM Pantera Clutch Master Cylinder bore measured 0.7465 inches (18.96 mm) and had a max stroke 1.25 inches (31.74 mm) Informed by John Beckman stroke was 1.125” |
An OEM Pantera Clutch Slave Cylinder bore measured 1.000 inches (25.4 mm) and had a max stroke 1.625 inches (41.27 mm) |
OEM slave cyl bore is 1". Max stroke is 1.625".Long throw slave cyl bore is 0.75". Max stroke is 1.125 now, I made some notes taking a hydrualic engineer approch to look at volumes and force transfers OEM MC volume (0.75/2)^2 X 3.147 X 1.25 = 0.5532 OEM SC stroke 0.5532/(1.00/2)^2 X 3.147 = 0.703 LT SC stroke 0.5532/(0.75/2)^2 X 3.147 = 1.25 OEM MC volume (0.75/2)^2 X 3.147 X 1.125 = 0.498 OEM SC stroke 0.498/(1.00/2)^2 X 3.147 = 0.633 Force calculation Pedal to Master cylinder 7:1 Master cylinder to slave 1.78:1 (ratio of areas) Slave to TOB 1.38:1 (inverse of 0.725:1) Therefore pedal to TOB 17.2:1 thus 10 pounds on clutch pedal gives 172 pounds at TOB
I;ll keep looking to see if I ever wrote something in lay terms |
