Wilwood brake fluid
#1
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Join Date: Aug 2007
Location: Delaware(US) & Nova Scotia(Canada)
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Wilwood brake fluid
Is DOT 3 brake fluid ok to use? Their FAQ only suggests their own product and says to not use DOT 5 Silicon Fluid but nothing regarding regular DOT 3. Not racing, just spirited road driving. Have Wilwoods in front and Exploder disks in rear. What should I look for locally for fluid?
#3
Their 570 fluid is actually like a DOT 3, just a much better DOT 3. Don't use the silicone based fluids because they'll cause the seals to swell and fail, use only the glycol based stuff. I have EXP 600 in mine right now, but I have 570 in my garage on the shelf Depending on which pads you're using, you might be better off with their 570, or you could use it because it's a better fluid. DOT 3 is hygroscopic(it absorbs water, so you don't have water particles boiling off in the fluid creating steam), so it has wet and dry boiling points, the dry is the fluid boiling point when it has 0% water in it, and the wet point is the boiling point of the fluid when it is 100% saturated with water. Once it hits 100% saturation though, it can no longer absorb the water so you'll get water buildup in the lines and steam. Their 570 has a higher wet and dry boiling point than standard DOT 3, and I've found it doesn't break down as quickly. The higher the temp range of the pads you use and the harder you run it, the quicker the fluid breaks down. I run the 570/600 stuff because it lasts longer, especially under abuse. But you can run regular ol DOT 3 and it'll work fine.
#5
If you're using Wilwood pads for street use and want the best all around braking performance, then use the BP-20 compound, it has the smoothest engagement with modest low temp friction for minimal wear under normal driving, but has the highest temperature and torque range of any of the "street" pads. It's one of their newer compounds. And run the 570 with it, standard DOT 3 won't survive long on brakes operating at over 800* F if you start driving really hard.
What pad compound do you have now? Or have you not gotten them yet?
What pad compound do you have now? Or have you not gotten them yet?
#6
5th Gear Member
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Join Date: Aug 2007
Location: Delaware(US) & Nova Scotia(Canada)
Posts: 2,035
Here is a pic of the Wilwood pad box. These came in a kit 140-10016. Looking that kit up shows the pad plate is 7816 with pad compound as BP-10. Calipers are the Dynapro Radial Mount (120-10000) which says they use type 7816 pads.
Looking at this pic it shows plate 7812-10. Only difference I see between the 7812 & 7816 is the later is slightly thicker. They fit in the calipers and rotors fine but I'm wondering if they shipped the wrong pads. Wilwood's site says they fit the calipers I have though. Everything is fully installed and they do fit fine.
Looking at this pic it shows plate 7812-10. Only difference I see between the 7812 & 7816 is the later is slightly thicker. They fit in the calipers and rotors fine but I'm wondering if they shipped the wrong pads. Wilwood's site says they fit the calipers I have though. Everything is fully installed and they do fit fine.
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