Pedal geometry on a Fox

HotFox

15 Year Member

Jan 5, 2009

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SE Michigan

May 16, 2020

#1

• May 16, 2020

• #1

Looking for someone to measure pedal length from pivot point to center of pad. Then pivot to booster linkage. Can someone measure it?
I'm at 9.25/2.25=4.11 with the cobra

I am upgrading brakes on dads cobra and I am using the caliper bore area/ms area ratio of 14-17:1. I am currently at 15.8:1 with a 1998 1.062" Mustang MC.

@Mustang5L5
Suggested check the geometry between the Fox and this Cobra pedals if all else is equal I should be good.
Thank you,
Scott

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Massachusetts

May 17, 2020

#2

• May 17, 2020

• #2

HotFox said:

Looking for someone to measure pedal length from pivot point to center of pad. Then pivot to booster linkage. Can someone measure it?
I'm at 9.25/2.25=4.11 with the cobra

I am upgrading brakes on dads cobra and I am using the caliper bore area/ms area ratio of 14-17:1. I am currently at 15.8:1 with a 1998 1.062" Mustang MC.

@Mustang5L5
Suggested check the geometry between the Fox and this Cobra pedals if all else is equal I should be good.
Thank you,
Scott

Click to expand...

I believe the 87-93 pedal is 13” with the rod attachment down 3.5”. Still looking to confirm this.

13/3.5= 3.7 pedal ratio.

That’s pretty close, with the cobra pedal having a bit more leverage than the mustang pedal. Manual brake setups usually have a ratio of 5 to 6 and run a 7/8” bore MC typically

Your prob be ok with the 1 1/16” MC as well. This is prob one of those situations where it comes down to owner preference. Fortunately both the 1” 93 cobra and 1 1/16” MC use the same brake fitting sizes so it’s an easy interchange of the GT Mc proves to be too soft or the stroke too long

 

Last edited: May 17, 2020

Reactions: HotFox

HotFox

15 Year Member

Jan 5, 2009

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SE Michigan

May 17, 2020

#3

• May 17, 2020

• #3

Thanks Mike! I will preceed just as you stated with the 1 1/16" and if he does not like the feel we will swap to a 1" mc.

 

HotFox

15 Year Member

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May 17, 2020

#4

• May 17, 2020

• #4

Just to confirm this does have a brake booster.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,185

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Massachusetts

May 17, 2020

#5

• May 17, 2020

• #5

Looks like one to me.


Not very big though...

 

HotFox

15 Year Member

Jan 5, 2009

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May 17, 2020

#6

• May 17, 2020

• #6

Mustang5L5 said:

Looks like one to me.


Not very big though...

Click to expand...

What I meant was you had mentioned manual brakes on pedal ratios. I was just stating, this does indead have a booster.

Anyway thanks again Mike!
Scott