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Originally Posted by Rat3d ///M
When I did mine I bought 3 bottles (0.5L each) and I only ended up using 1.5 bottles IIRC. I know everywhere I read it said to buy at least 1.5L, but I tried and tried and couldn't get anymore old fluid out after bleeding a little more than a full bottle through. I may have actually only used one complete bottle, I don't recall exactly. I suspect I didn't end up getting all the old fluid out, but no matter how long I bled I was getting clear fluid, so I figured it was good enough. Don't take my scenario as "I only need 1 or 2 bottles" though. I still recommend getting at least 1.5L in case you need it. If not, just keep whatever is left for next year and bleed again (as long as it's not opened, it will last a couple years on the shelf).
Regarding the fluid you chose, I too was looking into the Castrol SRF as I was told it was the best, but at $70 a bottle I felt it was overkill and I opted for the Motul instead at around $16 a bottle. Unless you are doing multiple track days a year and running back to back laps, I feel like you would just be wasting money going with the Castrol. It's a solid brake fluid, but I think you would be fine with the Motul or another cheaper alternative instead for a lot less money. I don't know what you use your car for, and my opinion may differ from others, but if you track a lot as described above, definitely go for the Castrol. If you just daily drive or even do the occasional track day for fun, the Motul or even Endless fluid would be fine for you and save you a ton of cash.
On a side note: The reason I opted for the RBF600 vs the RBF660 despite them being nearly the same price, is that the RBF600 has a wet boiling point of 420 while the 660 has a wet boiling point of 399 degrees, despite the 660 having a higher dry boiling point. For the driving I do, I figured I would NEVER approach the dry limits of the 600, so it was a better trade off to go for the one with the higher wet boiling point, as the wet boiling point is far more important to consider.
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Quote:
Originally Posted by aus
Are you really getting the WP BBK?? How did you get hooked up with them?
Back in 2008, I was their test vehicle. The kit came after waiting many weeks and I paid the shop to install it.. bracket didn't fit at all.
They were cool about it and refunded me everything including the shop fee, but it sucked to wait that long and not be able to have the kit installed after looking at it for a week until I had time to get it installed. I'm sure they learned from that episode!!
As for the brake fluid, ATE is fine for street use and even track use until you get faster.
The reason people love SRF is because the wet boiling point is so high. This allows people to run the brake fluid FAR longer than they would with other fluids. You also feel better about using the left over fluid after doing a bleed before a track event because of the high wet boiling point. Many people will say don't use left over brake fluid after the bottle has been open since it'll absorb moisture in the air.
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Ah you guys have me going back and forth still! I am not that intense and am still getting some lessons (will be doing a lot more starting mid December) and do not anticipate being that crazy on the track, which makes me think Motul will be fine, but at the same time reading what you just said (thank you for that info btw!) I do not want to keep changing my brake fluid all the time. I just googled SRF wet boiling point and its all the way to 520F! How often would I have to change the Motul 600 vs the Castrol? Is the jump from 420F to 520F just overkill? I would pay extra to avoid doing more labor.
Haha that's funny to hear you were WP Pro's test vehicle! Sorry to hear about the bracket, I hope I don't run into that same issue but at the same time that is pretty great customer service. Thank you for helping them ironing out the bracket issue for me to have a flawless install
I too have waited weeks but I was kept updated of the build process (since they're actually the ones who manufacture their own brakes) - which makes me think each set is built to order? I don't have any events or an organized track schedule so the wait didn't really affect me
I got connected with them after consulting with Vivid Racing, I was leaning towards Brembo bc that's pretty much all I knew but learned more about everyone's build processes and why certain items were expensive and others were cheaper. Owner of Vivid Racing also has WP Pro on his own cars and he has access to all the other brake companies through his site so I figured why not?!
Also, I was able to get the highest % off of WP Pro compared to Brembo, more finishes and frankly better customer service. Nothing bad about other brake companies out there by any means, but for my budget and preferences WP Pro was my choice.