MR2 Roadster Owners Club

The Workshop => General => Topic started by: ShieldsOnTour on August 19, 2013, 14:17

Title: Caliper position
Post by: ShieldsOnTour on August 19, 2013, 14:17
In a bid to learn "stuff" .....

Just been looking at a post and I noticed that the calipers are at different positions around the rim of the brake disc - the fronts are at "3 O'clock" and the rear are at "11 O'clock". Is there a reason for this (assume there is) and is it more technical than "... that's just the easiest place to have em ..." ?
Title: Re: Caliper position
Post by: mikeyboy_b16 on August 19, 2013, 16:00
I would say it is to do with manufacturing costs primarily,as the car is built to a price rather than out and out performance. There should be better caliper cooling with the fronts in that position, but a good amount of braking is done with the rears due to the weight distribution of the car. Mike
Title: Re: Caliper position
Post by: StuC on August 19, 2013, 16:06
I think its to do with braking efficiency and biasing the front and rear brakes.
Title: Re: Caliper position
Post by: Joesson on August 19, 2013, 20:45
The brake discs distort under load when the car is cornering so the caliper is positioned in the area of minimum deflection. This reduces "knock back" of the brake pedal as the movement of the caliper piston is kept to a minimum.
This position will vary somewhat from car to car.
I'm no expert but I am related to one!