3/4 vs 11/16 master cylinder.
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
It would be prudent for some of you to take a math class
Small bore - more pressure .
Big bore , less pressure, all other things being equal
I will see if I can find a cartoon that explains the elementary for dummies.
Good grief guys are you all that far dwn the chain>
Small bore - more pressure .
Big bore , less pressure, all other things being equal
I will see if I can find a cartoon that explains the elementary for dummies.
Good grief guys are you all that far dwn the chain>
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
https://www.onallcylinders.com/2013/...fects-braking/
Here, I don't dare put up pies are sq .
This is simple101 hydraulics guys, dont embarrass yourselves
Here, I don't dare put up pies are sq .
This is simple101 hydraulics guys, dont embarrass yourselves
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
The area of a circle (or bore) is πr 2. The area of the piston surface increases or decreases as the square of the bore size or diameter. For example, the area of a common 1 1/8-inch master cylinder is approximately 0.994-inch. The area of an equally common 1.00-inch bore master cylinder is approximately 0.785 inch. Switching from the larger master cylinder to the smaller version will increase the line pressure approximately 26.5 percent, assuming that pedal ratio hasn't changed.
https://mobiloil.com/en/article/car-...ce-improvement
https://mobiloil.com/en/article/car-...ce-improvement
Dirt don't hurt
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
It would be prudent for some of you to take a math class
Small bore - more pressure .
Big bore , less pressure, all other things being equal
I will see if I can find a cartoon that explains the elementary for dummies.
Good grief guys are you all that far dwn the chain>
Small bore - more pressure .
Big bore , less pressure, all other things being equal
I will see if I can find a cartoon that explains the elementary for dummies.
Good grief guys are you all that far dwn the chain>
https://www.onallcylinders.com/2013/...fects-braking/
Here, I don't dare put up pies are sq .
This is simple101 hydraulics guys, dont embarrass yourselves
Here, I don't dare put up pies are sq .
This is simple101 hydraulics guys, dont embarrass yourselves
The area of a circle (or bore) is πr 2. The area of the piston surface increases or decreases as the square of the bore size or diameter. For example, the area of a common 1 1/8-inch master cylinder is approximately 0.994-inch. The area of an equally common 1.00-inch bore master cylinder is approximately 0.785 inch. Switching from the larger master cylinder to the smaller version will increase the line pressure approximately 26.5 percent, assuming that pedal ratio hasn't changed.
https://mobiloil.com/en/article/car-...ce-improvement
https://mobiloil.com/en/article/car-...ce-improvement
You go right ahead and put a small bore MC on your bike or your car but do me and yourself a favor and test it on an abandoned runway so the chances of you getting into trouble because your bike won't stop are greatly reduced if not mitigated entirely.
FWIW I had to put a larger MC on my bike when I went to dual calipers to get effective braking.
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
You are arguing against basic math here.
I posted a cartoon,
I posted a note from some engineering,
and you still want to flaunt the superior stupidity?
Go ahead.
I am not going to argue with stupid.
I posted a cartoon,
I posted a note from some engineering,
and you still want to flaunt the superior stupidity?
Go ahead.
I am not going to argue with stupid.
Grand HDF Member
Joined: Apr 2007
Posts: 3,727
Likes: 3,073
From: Brighton, MI
Just to post past experiences...A common "hack" to improve braking on older (1997) dodge diesel 3/4 ton is to change out the rear brake cylinders to a larger diameter bore wheel cylinder for improved braking as those sleds do not like to stop with any kind of load. The larger bore definitely made an improvement in stopping power and cutting the distance. YD
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
I'm an engineer. This is simple mathematics indeed, which you have completely missed! A brake system requires fluid displacement first, pressure comes later. The Moco uses a larger diameter, same stroke, master cylinder with it's twin rotor brakes, than for it's single rotor brakes. That says all we need to know.
And cut the 'stupid' remarks - that really IS stupid!
And cut the 'stupid' remarks - that really IS stupid!
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Cruiser
Joined: Aug 2008
Posts: 190
Likes: 25
From: Rotterdam, Netherlands
Its really the other way around.F = p * a
Force = pressure * area
https://www.dummies.com/education/sc...d-on-pressure/
No disrespect because there is 'dummies' in the URL. I consider myself the biggest of all
Last edited by Daedalus; Jul 25, 2018 at 10:41 AM.