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Rear brakes on a tintop
thefreak - 3/2/11 at 03:10 PM

Right then. I'm looking to do a rear brake upgrade to a car we're putting together.
It's currently running standard single floating caliper with integral handbrake mechanism in the caliper. It doesn't have rear drums for the handbrake. The car weighs in excess of 1000kg so the Wilwood Powerlite handbrake caliper isn't suitable.
It will have 6 pot Superlites upfront, so would like something to keep the rear in check.
I've been looking over Wilwoods site and the only ideas I can come up with is either use the combination P-Brake or use the Mechanical Spot Caliper with a matching 4 pot caliper for the foot brakes, both mounted to the rear 2 piece disk. Something like this

Firstly, assuming the spot caliper can provide enough effort for the MOT (as it needs to have one) will the kit pass with that sort of setup?
Secondly, is anyone able to offer any alternative solutions?


britishtrident - 3/2/11 at 03:57 PM

Pointless as on a Mondeo sized FWD car the rear brakes only do any significant contribution to the braking when the car is loaded up at the rear.


Ken-J - 3/2/11 at 04:07 PM

Hi,

How about a Hispec regal SVA caliper or Wilwood 2pod with side brake type?

I think important matter of caliper choice is front and rear stopping force balance.

Therefor, I've chosen piston area about front 65%, rear 35%.

http://www.hispecbrake.co.uk/Rear%20SVA%20Ultralite%202%20Sierra%20Lu g.html

http://www.rallydesign.co.uk/catalog/product_info.php?c Path=562_588&products_id=11370


thefreak - 3/2/11 at 04:12 PM

quote:
Originally posted by britishtrident
Pointless as on a Mondeo sized FWD car the rear brakes only do any significant contribution to the braking when the car is loaded up at the rear.


who said Mondeo and FWD?
It's approx 600bhp, 4WD.. Mondeo sized


thefreak - 3/2/11 at 04:14 PM

quote:
Originally posted by Ken-J
Hi,

How about a Hispec regal SVA caliper or Wilwood 2pod with side brake type?

I think important matter of caliper choice is front and rear stopping force balance.

Therefor, I've chosen piston area about front 65%, rear 35%.

http://www.hispecbrake.co.uk/Rear%20SVA%20Ultralite%202%20Sierra%20Lu g.html

http://www.rallydesign.co.uk/catalog/product_info.php?c Path=562_588&products_id=11370


The Hispec may be an option, but was trying to keep to Wilwoods if possible as the fronts will be Wilwoods.
The one from Rally Design say only upto 750kg and having spoken to them on the phone, they say they wouldn't provide the clamping force required for the MOT.