Lincoln MC and Mustang Booster who is running?

Topic: Lincoln MC and Mustang Booster who is running? (Read 4404 times) previous topic - next topic

Lincoln MC and Mustang Booster who is running?

Reply #15 – July 13, 2013, 05:37:55 PM

Xxx

Lincoln MC and Mustang Booster who is running?

Reply #16 – July 13, 2013, 06:20:58 PM

I'm disagreeing with you on this on Tom. I measured the brake pedal on my 93 Fox Coupe and calculated a 3.4:1 ratio. This is also the same ratio that Jack Hidley (Maximum Motorsports) has posted on several sites when discussing brakes on these cars as well as how to modify the pedal for manual brakes.

If your calculations on the TC pedal are correct then just about any combination on a Fox Mustang that has power brakes should have the same results on a Thunderbird with a Fox Mustang pedal assembly. I used a Fox Mustang pedal assembly on my 83 T-Bird with zero issues.

Darren

Lincoln MC and Mustang Booster who is running?

Reply #17 – July 13, 2013, 08:30:03 PM

my fox mustang brake/clutch pedal was identical to my 87 bird one when I did the t-5swap. I saw no difference in mounting or length

Lincoln MC and Mustang Booster who is running?

Reply #18 – July 13, 2013, 11:49:42 PM

Xxx

Lincoln MC and Mustang Booster who is running?

Reply #19 – July 14, 2013, 01:10:51 AM

I just measured my stock aod pedal assembly, it was about 14" over all, 10" from nub to center of brake pedal. interestingly, this would give me about a 2.5/1 ratio, which doesn't make any sense to me.

Lincoln MC and Mustang Booster who is running?

Reply #20 – July 14, 2013, 09:23:24 AM

Haystack,

No, that gives you a 3.5:1 ratio. You need to measure from the center line of the pivot point of the break pedal to the center of the break pedal pad (X). Then you need to measure from the center line of the pivot point to the center line of the brake rod attachment point on the break pedal (Y). Divide X/Y = Brake Pedal Ratio. In your case you are saying that X=14" and to find Y you need to subtract 10" from 14" to get 4". This gives you 14/4 = 3.5.

Darren

Lincoln MC and Mustang Booster who is running?

Reply #21 – July 14, 2013, 09:31:08 AM

Tom,

From your pictures both brake pedal lengths are 13". On the left you have a 9-1/2" measurement from the center of the break pedal pad to the center of the brake rod attachment point and a 3-1/2" measurement from the center of the brake rod attachment to the center line of the pivot point of the break pedal arm. This is an overall length of 13" on the one the left. The one on the right is 9" & 4" which is an overall length of 13". The one on the left has a ratio of 3.7 and the one on the right has a ratio of 3.25. This is all based on the picture you provided which I am doing quite a bit of assuming on the measurements as the pictures are not quite straight on and I cannot see where the end of the tape is on the break pedal arm pivot point. I was pretty sure you would have taken that measurement from the center line but I cannot tell. Also, if you would post the Ford part number stamped in the arm it would help as well.

Darren

Lincoln MC and Mustang Booster who is running?

Reply #22 – July 15, 2013, 09:27:37 AM

Well GOOD MORNING guys, I didn't follow this over the weekend but appears there was some back and forth. I only see one side of it now but I appreciate the replies. From what I follow from Aero's posts there was some debate over pedal effort. Parts should be in this week, but I"m pulling the motor to weld up the engine bay but will post results soon as its back on the road.