Has anyone here fitted a larger Brake Master Cylinder on their S2000? My track only S2000 has larger brake calipers and the peddle feels mushy. After many tries of bleeding (including engaging the ABS System) I have come to realize that installing a larger master Cylinder might help me solve the issue. I found generic Master Cylinder sold by Wilwood and I am considering buying one http://www.wilwood.com/MasterCylinde...ter%20Cylinder.

Any thoughts ideas are welcome.

 

Bigger brakes won't cause a mushy pedal, if anything it would cause a longer throw.
Are your pads seated? Have you driven around yet? New pads can cause a mushy pedal as well as not bleeding both sides of the caliper.

 

Do you mean remove the brake booster and add a larger MC?

 

No, keeping the booster just installing one with larger diameter piston.

 

I've never heard of anyone swapping their master cylinder but I have heard that a master cylinder brace firms up the pedal.

It takes a while to get all the air out of the system after replacing calipers or lines. Just keep bleeding them before/during/after a track day and you'll eventually get it all out and firm up the pedal.

Your brake pad's bite will also affect how you perceive pedal firmness.

 

Rob, we had this conversation at the track and you said you had mushy pedal too after the larger accord calipers... Were you able to solve that issue?

 

Yes, it firmed up after repetitive bleeding but the pedal is a little longer due to the larger caliper pucks.