Brakes spongy brakes

[GTMAXX]

Just installed Brembo GT 500 brakes with new ss lines on 06 GT, bled the crap out of them, getting no bubbles, but still have a spongy pedal. A couple of pumps gets a firm pedal but this is not acceptible. Any ideas are appreciated. Also, if I wind up flushing whole system what is the best brake fluid for a weekend car that sees occasional track days?

 

[madspeed]

not that up to speed on the newer stuff, but im guessing your master cylinder cant handle the gt500 brakes

 

[earleys94gt]

Do the GT500's, like the Terminators, have the hydro-boost master cylinders?

 

[GTMAXX]

thanks , don't know if they are different but will check it out.

 

[Scott2]

Did you follow FORD instructions and bleed all four wheel cylinders starting from the one furthest away to the master cylinder to the closest in order?

 

[GTMAXX]

I was under the impression that was not needed since I didn't touch the rears but think I will try that this week when I get time. Thanks for the input. Just hope I don't have to start throwing parts at these things to get them to work right.

 

[madspeed]

i eould say if you didnt bleed the rears you need to definitely

 

[GTMAXX]

UPDATE! Messaged Brembo about problem with the GT 500 brakes and got back a condescending note about my lack of knowledge about master cylinders and compatible components while trying to sell me a $3,000 set of brakes. NO HELP. Got in touch with one of the "tech" guys from FORD RACING and got the help I needed. Turns out I did need more knowledge as there are two bleeder valves on each caliper-one on each side- and you gotta bleed both. Silly me. All other components compatible and working good. Problem solved. No spongy pedal. Work great. Thanks FORD RACING!

 

[madspeed]

cool beans