I would like to upgrade the brakes on my Z and having been down this route before (and failed) I would like to understand what impact any possible upgrade will have. There seems to be plenty of people that throw BBK on 1.9s - 2.8s but doing this must affect the braking bias, front to rear!
Facts I know:-
I have a 2 port master cylinder (DSC) and the ports are as follows:-
There are two lengths listed for the master cylinder, these are as follows:-
Port 1 is for the front brake circuit and port 2 is for the rear brake circuit.
My brake calipers have the following Pistons:-
My front disc sizes are 300mmx22mm
I have tried the following:-
E46 330ci front brake calipers and carriers with 325mm brake discs, these fit perfectly but the brake bias is not right, the calipers for the E46 have single 57mm Pistons.
Porsche 4 pot brake calipers and carrier, these would need some fettling to make physically fit and spacers on the front of the car so this is not an option.
Over to you gurus, how do I calculate the following:-
Relationship between the piston size in the brake master cylinder and the caliper piston size?
Current brake bias? I've tried to do this and got the figures to front 57% and rear 43% but not sure.
What are your thoughts
Facts I know:-
I have a 2 port master cylinder (DSC) and the ports are as follows:-
- Port 1 = 23.81mm diameter
Port 2 = 20.64mm diameter
There are two lengths listed for the master cylinder, these are as follows:-
- Length 1 = 35.9mm
Length 2 = 116.4mm
Port 1 is for the front brake circuit and port 2 is for the rear brake circuit.
My brake calipers have the following Pistons:-
- front caliper single 54mm diameter piston
Rear caliper single 36mm diameter piston
My front disc sizes are 300mmx22mm
I have tried the following:-
E46 330ci front brake calipers and carriers with 325mm brake discs, these fit perfectly but the brake bias is not right, the calipers for the E46 have single 57mm Pistons.
Porsche 4 pot brake calipers and carrier, these would need some fettling to make physically fit and spacers on the front of the car so this is not an option.
Over to you gurus, how do I calculate the following:-
Relationship between the piston size in the brake master cylinder and the caliper piston size?
Current brake bias? I've tried to do this and got the figures to front 57% and rear 43% but not sure.
What are your thoughts