BRAKE PEDAL RATIO

Message

sc racing · #16 Post by **sc racing** » Sat Jan 20, 2007 8:59 am

OOPS! Heres the pic.

#17 Post by **John_Heard** » Sat Jan 20, 2007 9:12 am

Hey looks like the metal mites got ahold of it lol

sunsation540 · #18 Post by **sunsation540** » Sat Jan 20, 2007 5:09 pm

i,m using a factory manual MC on the chevelle with willwood disc on the front factory rear. with adj prop valve firm pedel wouldnt stop for nothing what master cyl will bolt up and not have to much changing.. used that s 10 thing on another car had to make retainer brackets as well would like a bolt on in this one..those brake pedl asy look trick i,m .well me and my car are so fat that would be like 3 big macks 3 fries and a diet coke...it,s to late..

#19 Post by **John_Heard** » Sat Jan 20, 2007 5:22 pm

A few people have been using this new Wilwood model and have liked them - http://www.wilwood.com/Products/006-Mas ... /index.asp

I "think" that is a bolt on for Chevys, Sutton has one of those on his Chevelle.

jones_performance · #20 Post by **jones_performance** » Sat Jan 20, 2007 9:29 pm

sc racing wrote:I just found out how to resize my pics so I can post them.Heres the pedal I have you can see how far down the mounting point is from the pivot point.I have to move it up so its only 1.69" away from the pivot point.Im just going to do it and move the master on the firwall. Kevin how long is your pedal?Mine is from a stick car and looks longer its 11" from pivot to the end.

mine is form an auto car.

sc racing · #21 Post by **sc racing** » Sun Jan 21, 2007 9:21 am

Thanks for the pics Kevin.

sc racing · #22 Post by **sc racing** » Wed Jan 24, 2007 11:17 pm

Finished the brake pedal ended up with 6.51:1 hope Wilwood was right.Thanks for the pics sixpackmotorsports as you can see it looks a lot like yours.

Wayne Carroll · #23 Post by **Wayne Carroll** » Thu Jan 25, 2007 2:44 pm

6:5 to 1 is the standard - or anything up to 7:1 for a manual application without power assist. Wilwood is right - you should be fine.

Call Roger Lamb at Lamb Components and he will give you some help if you need it on this matter, or....

Call Gary Hansen at Hansen Race Cars in Montclair, CA. or any other reputable door slammer chassis shop in your locale. They confront this issue on a daily basis and will be more than happy to see you through any concerns setting up your pedal. Usually, a slightly larger bore on the master cylinder helps in pedal feel, so ask which one they recommend.

Finally, if you do purchase another master cylinder, then use an aluminum piece, to reduce weight. It may not be important now, but why go backwards when you start going faster and then very fast?

Good Luck

sc racing · #24 Post by **sc racing** » Sun Jan 28, 2007 7:03 pm

Cut a hole in the firewall and welded in my new plate all fit good hope it woks.

jones_performance · #25 Post by **jones_performance** » Tue Jan 30, 2007 10:46 pm

Wayne Carroll wrote:6:5 to 1 is the standard - or anything up to 7:1 for a manual application without power assist. Wilwood is right - you should be fine.

Call Roger Lamb at Lamb Components and he will give you some help if you need it on this matter, or....

Call Gary Hansen at Hansen Race Cars in Montclair, CA. or any other reputable door slammer chassis shop in your locale. They confront this issue on a daily basis and will be more than happy to see you through any concerns setting up your pedal. Usually, a slightly larger bore on the master cylinder helps in pedal feel, so ask which one they recommend.

Finally, if you do purchase another master cylinder, then use an aluminum piece, to reduce weight. It may not be important now, but why go backwards when you start going faster and then very fast?

Good Luck

hanson uses lamb componenets as well.

The_Dakota_Kid · #26 Post by **The_Dakota_Kid** » Mon Apr 16, 2007 9:14 pm

Post the bore spec's on the master cylinder, it makes a big diff. Shoot for 1000-1100 psi for a nice pedal. Example: with a 6:1 ratio with a 7/8 bore MS is 1500 psi, the same ratio with a 1 1/8th bore is just 900 psi, given the same 150lbs pedal force. Never go above 1600 psi.

sc racing · #27 Post by **sc racing** » Tue Apr 17, 2007 6:35 pm

Its an 1-1/8" but I havent put it in yet I might go to a 1"or a 7/8" not sure yet i stopped working on the car for a while.

BRAKE PEDAL RATIO

Brake Pedal Ratio

Re: Brake Pedal Ratio

Who is online