Brakes
Is anyone running a residual valve on their brake systems? I’m having some pedal bleed down. Have to pump pedal after a bit. Thinking I might need a residual valves. 7/8 Willwood master cylinder was stoptech brakes.
Is anyone running a residual valve on their brake systems? I’m having some pedal bleed down. Have to pump pedal after a bit. Thinking I might need a residual valves. 7/8 Willwood master cylinder was stoptech brakes.
Typically, as long as the master cylinder is higher than the brake calipers, when you have some pedal bleed down, there is some air in the system. Using a power bleeder that pushes the fluid & air out of the lines & back in the master cylinder reservoir is the best way to fix it. If you try & just can't get it, running 2# residual valves is a fix. Not ideal, as it it creates a little drag in the brakes.
I’m a veteran racer & race car designer committed to staying on the leading edge of racing technology, for one reason, to win. Everything else is BS. I'm only semi-retired because I still love helping build bad ass race cars. <br><br>While engineering, geometry, trigonometry, physics & more affect everything in race cars, I do my best to make the complicated easier to understand. One of my racing friends said, “Ron is a race car designer that did not go to engineering school, so he speaks car guy.”
We run them on street driving applications when the calipers are higher than the master cylinder reservoir. But as Ron mentioned if you are trying to race with them they will not let the brake cool properly due to the little bit of drag left in the system. It has been by experience that the pumping you are referring to could be being caused by brake knock back.
Scot Rods Garage<br>Scot McMillan Jr.<br>817 716 9664
Ok I haven’t power bleed the brakes yet. Iam running stoptech brakes on a 67 fire bird did not think about knock back thanks for the information I will definitely check into that. Thank you.
Ok I haven’t power bleed the brakes yet. Iam running stoptech brakes on a 67 fire bird did not think about knock back thanks for the information I will definitely check into that. Thank you.
Scot is spot on about knock back. I don't "think" you're experiencing knock back in the StopTech calipers, as I designed those with 6# of anti-knock back spring rate on each piston. But it's still possible. Power bleed the master first. Then run it & see.
I’m a veteran racer & race car designer committed to staying on the leading edge of racing technology, for one reason, to win. Everything else is BS. I'm only semi-retired because I still love helping build bad ass race cars. <br><br>While engineering, geometry, trigonometry, physics & more affect everything in race cars, I do my best to make the complicated easier to understand. One of my racing friends said, “Ron is a race car designer that did not go to engineering school, so he speaks car guy.”
Hey Ron, also wanted to ask what about stop tech brake pads. Are brake pads going to be available through other sources.
Thanks, PJ
Thanks, PJ
Edited 2 months ago
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