Clutch and brake Master Cylinders
07-23-2015, 09:44 AM
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Clutch and brake Master Cylinders
Hi guys
Does anyone know how much fluid a hydraulic clutch MC displaces when pressed?
Same question for a brake mc?
The reason i'm asking is that i'm building a twin engined setup at the moment - both with hydraulic clutches.
If i use the standard clutch MC, i won't be able to operate both slave cylinders.
I can make a rig with a brake MC instead, but i want to make sure it will displace enough fluid to operate both clutches.
Cheers
Does anyone know how much fluid a hydraulic clutch MC displaces when pressed?
Same question for a brake mc?
The reason i'm asking is that i'm building a twin engined setup at the moment - both with hydraulic clutches.
If i use the standard clutch MC, i won't be able to operate both slave cylinders.
I can make a rig with a brake MC instead, but i want to make sure it will displace enough fluid to operate both clutches.
Cheers
07-25-2015, 06:36 PM
#2
MM Gruppe B
Re: Clutch and brake Master Cylinders
What car?
90's Hondas use a 5/8" CMC with 3/4" SC's.
Doubling the area of 5/8" will give you about 7/8" for volume control.
This would work to actuate the clutches(hydraulically), however you have also doubled the amount of pressure needed to work both clutches(two marcel springs and clutch forks).
Or, locate a 5/8* two port BMC and use that instead.
Or, purchase two 5/8" CMCs attach them to the clutch pedal via a balance bar and keep the two clutch systems divorced.
90's Hondas use a 5/8" CMC with 3/4" SC's.
Doubling the area of 5/8" will give you about 7/8" for volume control.
This would work to actuate the clutches(hydraulically), however you have also doubled the amount of pressure needed to work both clutches(two marcel springs and clutch forks).
Or, locate a 5/8* two port BMC and use that instead.
Or, purchase two 5/8" CMCs attach them to the clutch pedal via a balance bar and keep the two clutch systems divorced.
07-26-2015, 08:03 PM
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Re: Clutch and brake Master Cylinders
"Volume of a cylinder" could be googled.
V = [(Pi) R^2] x H
H is the length of the stroke, in the case of your question.
A clutch master cylinder is usually stroked out to a specific length every time its pressed.
Brakes don't work that way...obviously because you need to vary how far you push the brake pedal.
If you need the volume per set increment of movement for a brake master cylinder...use the formula above.
V = [(Pi) R^2] x H
H is the length of the stroke, in the case of your question.
A clutch master cylinder is usually stroked out to a specific length every time its pressed.
Brakes don't work that way...obviously because you need to vary how far you push the brake pedal.
If you need the volume per set increment of movement for a brake master cylinder...use the formula above.
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