Brake upgrades

[MGBV8]

I know this is for going faster but any stopping slower thoughts

Front Only Brake Upgrades Increases Stopping Distance!

Double Dutch or not?

Paul

[MGBV8]

What a result

Tried this elsewhere without much agreement!

Anyone explain the theory - balance correct before front upgrade and upgrade of piston diams or pots, compared to just larger disc?

Paul

[MGBV8]

A few numbers ball park based on a MGF

OE brakes 60% Front 40% Rear
Upgrade front now 70% Front 30% rear

Maximum front tyre grip at point just before lock up 1500lbs

So OE Front 1500 rear 1000 total 2500lb of stopping force

Upgrade Front 1500 Rear 650 total 2150
Nearly 15% reduction in stopping force!

The assumptions are on the limit braking and a matched properly working system to start.

Also looking for a good explanation of tyre grip in relation to braking from high speed to low speed when the wheels hopefully fronts lock.


Paul

[MGBV8]

Alpha

The standard bias valves usually limit rear pressure, so you must have a tweaked version or set up.

As most prob most lower cars then the rears may require an upgrade rather than fronts.

Paul

[MGBV8]

Graham,

The above example was based on an MGF with weight transfer but road tyres, so say 1g. Assume with race you will pull over 1g increasing weight transfer somewhat so fronts will need a boost.

For RWD for road the split could be say 70F 30r.

Assume again in race trim its lowered, so would that balance tyres or increase towards say 80F 20R?

Interesting that some cars are overbraked at rear as again I would assume most would be cautious and underbrake rear.

Paul