Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-17-2020, 05:29 PM   #1
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Question Stroke on Master Cylinders

Hi Guys, I need to know the stroke travel on both a '48 Ford master cylinder and a 65 Mustang dual master cylinder? I need the stroke dimensions for a project on my '35 Doesn't seem to be in the details given on sites for buying?
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 06:39 PM   #2
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 5,788
Default Re: Stroke on Master Cylinders

Anthony...I don't have the dimensions you asked for, but you also need to be aware that cylinder diameter CHANGES (even in 1/16" diameter increments) can drastically affect the total function of your brake system. Going SMALLER diameter on a M/C will make it easier to push on the pedal, BUT....the stroke will also need to be LONGER to displace the same VOLUME of fluid as before.


Inversely, going LARGER on the M/C diameter will flow more fluid per stroke distance, but the pedal will become hard as hell to push. DD
__________________
T5 W/TORQUE TUBE


It's one thing to be ignorant! It's a whole 'nother story when you're proud of it!




V8COOPMAN is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-17-2020, 06:56 PM   #3
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Thx DD, I realize that. This will be something for now & later incase I decide to change again. Have a design that I’m trying accommodate a ‘48 Ford MC for use now w ‘48 ford brakes all around. Will decide later to go w either Bendix type on front or possible discs. W Bendix ‘48 MC will work fine but if I go w discs I’ll néed the Mustang duel MC w portioning valve. Want to try to modify bracket to use either.
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 07:14 PM   #4
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 5,788
Default Re: Stroke on Master Cylinders

Quote:
Originally Posted by AnthonyG View Post
Thx DD, I realize that. This will be something for now & later incase I decide to change again. Have a design that I’m trying accommodate a ‘48 Ford MC for use now w ‘48 ford brakes all around. Will decide later to go w either Bendix type on front or possible discs. W Bendix ‘48 MC will work fine but if I go w discs I’ll néed the Mustang duel MC w portioning valve. Want to try to modify bracket to use either.

Anthony...For what it's worth, DON'T go that disc route. If you will, take three or four minutes and read the post I just made on another thread. Click the link below and read POST #3. DD


https://www.fordbarn.com/forum/showthread.php?t=275521
__________________
T5 W/TORQUE TUBE


It's one thing to be ignorant! It's a whole 'nother story when you're proud of it!




V8COOPMAN is offline   Reply With Quote
Old 01-17-2020, 07:33 PM   #5
V8 Bob
Senior Member
 
V8 Bob's Avatar
 
Join Date: May 2010
Location: Granger (Northern) Indiana
Posts: 1,262
Default Re: Stroke on Master Cylinders

Quote:
Originally Posted by AnthonyG View Post
Hi Guys, I need to know the stroke travel on both a '48 Ford master cylinder and a 65 Mustang dual master cylinder? I need the stroke dimensions for a project on my '35 Doesn't seem to be in the details given on sites for buying?

JFYI, the first Mustang dual master cylinder was 1967.
V8 Bob is offline   Reply With Quote
Old 01-17-2020, 07:56 PM   #6
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

All good DD, actually think I was on board w the Bendix Lincoln Fronts & know the ‘48 MC is adequate for but even w those thinking maybe for safety a dual MC gotta b good! Better to have capability & not use than have to pull out & refab later. Ur post was a good read & do agree.
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 08:05 PM   #7
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

V8 Bob, JFYI POL inc has avail set up w portioning valve for ‘64-‘73 Mustangs which is where I got info. https://www.performanceonline.com/Fo...ing-Valve-Kit/
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 08:26 PM   #8
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 13,579
Default Re: Stroke on Master Cylinders

Believe he is correct on the dual master cylinder first being used in 67 from the factory.
JSeery is offline   Reply With Quote
Old 01-17-2020, 08:48 PM   #9
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Wasn’t contesting just it indicating where I got the info. I was lazy & just picked a yr in the middle of the add, lol, I’m not a Mustang Guy.
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 08:52 PM   #10
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Looks like a neat little package if I can get it to fit. The strok concerns me. If much longer than the ‘48 MC will b tough.
__________________
Nomad
AnthonyG is offline   Reply With Quote
Old 01-17-2020, 11:18 PM   #11
Brian
Senior Member
 
Brian's Avatar
 
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 2,528
Default Re: Stroke on Master Cylinders

https://www.fordbarn.com/forum/showthread.php?t=18733
__________________
Unfortunately, two half wits don't make a whole wit!
Brian is offline   Reply With Quote
Old 01-17-2020, 11:19 PM   #12
Brian
Senior Member
 
Brian's Avatar
 
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 2,528
Default Re: Stroke on Master Cylinders

https://www.fordbarn.com/forum/showthread.php?t=262462
__________________
Unfortunately, two half wits don't make a whole wit!
Brian is offline   Reply With Quote
Old 01-18-2020, 12:15 AM   #13
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 5,788
Default Re: Stroke on Master Cylinders

Quote:
Originally Posted by AnthonyG View Post
Looks like a neat little package if I can get it to fit. The strok concerns me. If much longer than the ‘48 MC will b tough.

Plus, don't forget that if you lose one side of the system, the M/C must stroke longer than normal to function in emergency mode. DD




...
Attached Images
File Type: jpg Master Cyl Tandem.jpg (14.2 KB, 122 views)
__________________
T5 W/TORQUE TUBE


It's one thing to be ignorant! It's a whole 'nother story when you're proud of it!




V8COOPMAN is offline   Reply With Quote
Old 01-19-2020, 02:02 PM   #14
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Good stuff Brian & DD, took a while to read all & absorb. Think I’ve understood. In a system w a specific size or sizes ( some diff front to rear) wheel cyl’s, using a specific single stage Master cyl that works as should, to maintain good pedal & stopping when changing to dual MC, the new MC needs to have at least the same cylinder bore & stroke as original but bigger bore is better? Seems rational or am I still in the weeds?
__________________
Nomad

Last edited by AnthonyG; 01-19-2020 at 02:10 PM.
AnthonyG is offline   Reply With Quote
Old 01-19-2020, 02:52 PM   #15
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 5,788
Default Re: Stroke on Master Cylinders

Quote:
Originally Posted by AnthonyG View Post
Good stuff Brian & DD, took a while to read all & absorb. Think I’ve understood. In a system w a specific size or sizes ( some diff front to rear) wheel cyl’s, using a specific single stage Master cyl that works as should, to maintain good pedal & stopping when changing to dual MC, the new MC needs to have at least the same cylinder bore & stroke as original but bigger bore is better? Seems rational or am I still in the weeds?

It should have the SAME BORE....period! As the M/C bore's diameter increases, the pedal becomes MORE difficult to push. You increase the bore diameter (on the M/C) enough and you become incapable of pushing hard enough on the pedal to stop. And it doesn't take much, either. This is why you have to be careful when adding a dual M/C on an old Ford. The stock pedal obviously has only so much room to swing. And God forbid if you have some extra carpet and padding to take-up space under the pedal. It takes some delicate engineering to get it done PROPERLY. DD
__________________
T5 W/TORQUE TUBE


It's one thing to be ignorant! It's a whole 'nother story when you're proud of it!




V8COOPMAN is offline   Reply With Quote
Old 01-19-2020, 05:38 PM   #16
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Guess I didn’t get it, so w Ford / Lockheed’s on front & rear w MC u need a dual stage MC w same bore as. ‘40-‘48 single stage.
__________________
Nomad

Last edited by AnthonyG; 01-19-2020 at 05:51 PM.
AnthonyG is offline   Reply With Quote
Old 01-19-2020, 06:48 PM   #17
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 5,788
Default Re: Stroke on Master Cylinders

Quote:
Originally Posted by AnthonyG View Post
Guess I didn’t get it, so w Ford / Lockheed’s on front & rear w MC u need a dual stage MC w same bore as. ‘40-‘48 single stage.

Yes! With the stock, single M/C you obviously only had ONE, single bore size, right? DD
__________________
T5 W/TORQUE TUBE


It's one thing to be ignorant! It's a whole 'nother story when you're proud of it!




V8COOPMAN is offline   Reply With Quote
Old 01-19-2020, 07:39 PM   #18
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,568
Default Re: Stroke on Master Cylinders

Thx
__________________
Nomad
AnthonyG is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 08:33 PM.