Reply to "RESIDUAL PRESSURE VALVES"

lf-tp2511Member

Did you get your system from Quella?

2511 has Wilwood calipers, aftermarket MC and the two blue RPV's.

I asked Dennis about this years back. He told me he uses them for a reason, but not the height issue.

He said the Wilwood piston seal o-rings are not really o rings, but quad rings - flat on all four sides. He feels they tend to pull the pistons back into their bores more than a true round o-ring. So, to counteract that piston recession, which would result in a somewhat further piston travel, (and thus slower), before full stopping power, he adds the RPV's to hold the pistons closer to the rotor.

I still have them in, and bleeding the brakes doesn't seem to suffer due to their presence.

Larry

6/14/089:57 PM

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