View Single Post
  #42  
Old 07-29-2013, 08:19 AM
Ron Sutton's Avatar
Ron Sutton Ron Sutton is offline
Senior Member
 
Join Date: May 2013
Location: Folsom, CA
Posts: 2,422
Thanks: 45
Thanked 35 Times in 26 Posts
Default

Josh (Banko) has an award from Wilwood, so he's upgrading his brakes. Josh is the one that started this thread because his car is not braking strong enough. He PM'd me the system he's considering.

Brake piston sizes
Front: W6A (1.75,1.38,1.38)
Rear: C6Zo6 (1.3,1.3,1.3)

Rotor diameters
Front: 14"
Rear: 14"

pedal ratio
6.25:1

Master cylinder bores
Front: 0.75"
Rear: 0.75" or 0.875"
Brake pad brand & compound name
Front: PolyMatrix H
Rear: Hawk HPS

-------------------------------------------------------------------------------------------------------

I ran the calcs on this system ... an whoa Baby ... it swings the pendulum too far the other way. In the chart below, this is the system on the left. Look down at the total braking force #. It would have 7000# of braking force, which would simply lock the wheels up upon braking.

Now look at the chart on the right. By changing the pad compounds & the M/C sizes, we adjust the total braking force to about 4000#. That is a strong braking system.

Did you guys ever watch the Lassie TV show?
If you did, you remember the Dad always sat down with Timmy at the end of the show to explain the moral of their lesson. This was a planned in moment every show. The writers called it the "Ya know Timmy ..." part of the story.

Well ... Ya know Timmy ...
The lesson here is when building your braking system working out the details is just as important as buying great parts.


Attached Images
 
__________________
Ron Sutton Race Technology
Reply With Quote