320i brakes in front and now..., The rears feel undersized Options

[banderson]

I did the standard conversion to 320i front calipers and removed the proportioning valve last summer and now I think that I may have increased the stopping distance. The rears don’t feel like they are working hard enough. I overhauled the system with new rotors, rear caliper rebuild kits, DOT SS lines and street pads.

Because my front brake pistons are bigger, it takes less effort to lock the front wheels than it did before. Now the front wheels lock well before the rears come close.

I havn’t heard of anyone complaining about this before and Grassroots motorsports reported that they needed an adjustable valve to keep there rears from locking. This makes me wonder if my rears are working properly. They get hot, so I know they are doing something. The pedal is solid and they don’t bind.

I am considering changing to a high performance street pad, or putting different ones on the back, but I don’t want them to grab too much.

Your thoughts?

[crash914]

brett, come by and look at my set up.

I have a tilton adjustable porportioning valve located at the old rear "T". I would recommend the dial in the cockpit.

I am running hawk hp+ in front, in the rear I am running porterfield r4s. plenty of stop...I know that I could out brake you at NHIS. had no power running pulling out of the corner though....

Your pedal should be HARD!!! If not, the rears might need to be adjusted. Pull up the hand brake and then stomp on the pedal...better?

Give me a call or stop by..I would be glad to show you what I have...on a side note, the engine is out, and cylinders are off.....ready for 103's........ (IMG:style_emoticons/default/laugh.gif)


see you later, herb