Tuesday, January 27, 2009

Rear brakes

Jumping back and forth between front suspension and rear wheel assembly...

According to my quick and dirty brake calculations, outboard 2-piston calipers should be adequate for the rear. To keep things consistent on the car that means Wilwood, which pretty much means Billet DynaPro Single.

Not a bad CAD model if I say so myself, especially for an hour and a half and only two drawings to go from on the Wilwood site!

The DynaPro Single is the successor to the Dynalite Single, which we had used for many years on our FSAE cars (2 outboard on the front, 1 inboard on the rear on the differential). The Dynalite definitely had some rigidity issues and when pressurized and putting force on the rotor you could watch it flex significantly! May have been part of the reason we had trouble getting really good solid brake feel. Wilwood claims to have addressed the flex issue in the DynaPro Single. I hope so!

Likely will be using solid, relatively thin discs at the rear.

Ideally I'd be able to use the same L/R upright on the rear as the front, though the mounting style of the DPS may render that impossible. We shall see, may tinker around with that in CAD later tonight.

1 comment:

Unknown said...

Could I get this model from you?
-Sam