I now have 355mm fronts and 300 rears- as the rears are bigger and I assume more powerful do these effect the brake bias at all, ie if I brake really hard will I;

A-Get forced into the seatbelt and my eyes pop out?
B-slide sideways for 100ft before coming to rest in a ditch?

I havent driven it yet with both front and rear and wondered if any changes need to be made before I do?
Cheers

 

even from standard the fronts allways do the most of the braking anyway about 70% 30% or something like that,i wouldnt be to concered but i maybe wrong good luck

 

that is what i had on my escort befor i upgraded and you wont have any problems mate as long as all is working fine it will stop very well in a straight line with the abs working over time its great. Just bed them in well then find a nice wide empty road and slowly go faster just to make sure, mine pulled up very well from 172 mph many times

 

You should have no problems as you have upgraded the fronts massively too, I would check they work correctly 1st time out on a private road just to be sure too

The rears got bigger calipers? 4pots or std?

 

If you havn't changed the calipers then they should be spot on, mine are & its the same set up as yours

 

Still standard calipers - they are Duncos's old 300mm discs before he upgraded