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Brakes, Suspension & Steering Conversion questions & more.

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  #1  
Old Oct 22nd, 11, 2:19 PM
Skier_Bob Skier_Bob is offline
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Default What is best brake fluid to use?

Experts - it's time to add fluid to and bleed new brake setup...... I have put in new lines from ground up, new tandem wilwood master cylinder and new wilwood two piston calipers..... my question is what is best brake fluid to use? ..... 71 chevelle, 550 hp...... street use only.... someday a test run at the track but not regular racing...... . Wilwood manual says Wilwood Hi Temp 570 grade fluid and not to use Silicone DOT5..... Thank you very much! what are your thoughts on DOT 3? DOT 4? DOT 5?
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  #2  
Old Oct 22nd, 11, 4:15 PM
9pass2drwgn 9pass2drwgn is offline
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Default Re: What is best brake fluid to use?

If I do a complete new system I use DOT 5. Rated for very high temp., does not absorb moisture, and don't think it lifts paint if you spill it. It is more expensive though.
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  #3  
Old Oct 22nd, 11, 6:07 PM
DN DN is offline
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Default Re: What is best brake fluid to use?

You'll get other opinions for sure, but for the street, I'm a Dot 5 guy too. Won't harm paint or booster plating. No problems for over 4 years.
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Old Oct 22nd, 11, 6:46 PM
Vegas69 Vegas69 is offline
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Default Re: What is best brake fluid to use?

I'd certainly follow Wilwood's recommendation on their product. I've found that GM fluid or quality dot 3 is fine for the street. However, I've overheated those types of fluids when I run my multi events. Usually in the 0-100-0 or 0-80-0 events. I'm running the Wilwood 600 fluid now which is expensive but seems to give me a firmer pedal and a little more protection. For you application, I wouldn't spend the money.
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Old Oct 22nd, 11, 6:55 PM
Mike Mike is offline
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Default Re: What is best brake fluid to use?

Quote:
Originally Posted by Skier_Bob View Post
Wilwood manual says Wilwood Hi Temp 570 grade fluid and not to use Silicone DOT5.....
Um,so Wilwood says not to use Silicone Dot5 and your questioning that?
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Old Oct 22nd, 11, 8:33 PM
Skier_Bob Skier_Bob is offline
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Default Re: What is best brake fluid to use?

Wilwood says" Silicone DOT 5 brake fluid is NOT recommended for racing or performance driving........ so DOT5 silicone is ok for street........ I missed the part about racing and performance driving........just trying to learn....
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  #7  
Old Oct 23rd, 11, 6:54 AM
Monte Carlo Monte Carlo is offline
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Default Re: What is best brake fluid to use?

Dont forget the cross drilled brake lines
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Old Oct 23rd, 11, 11:46 AM
72ragtop 72ragtop is offline
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Default Re: What is best brake fluid to use?

Quote:
Originally Posted by Monte Carlo View Post
Dont forget the cross drilled brake lines
Huh?
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  #9  
Old Oct 23rd, 11, 1:58 PM
Skier_Bob Skier_Bob is offline
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Default Re: What is best brake fluid to use?

i don't get that one either? thanks 72ragtop. Monte Carlo - what did you mean by that?
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  #10  
Old Oct 23rd, 11, 2:19 PM
Mike Mike is offline
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Default Re: What is best brake fluid to use?

Never visited Kaleco HUH?

Considering your set up and -Yeah,Yeah, street use only ,I'd go with the performance recommendation from Wilwood and not use the Dot5.
Your eventually going to play with it somewhat and you may also keep the warranty up ,if applicable
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  #11  
Old Oct 23rd, 11, 6:43 PM
Verle Verle is offline
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Default Re: What is best brake fluid to use?

High temperature DOT 4 is available if you don't want to use DOT 5.
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  #12  
Old Oct 23rd, 11, 8:50 PM
Skier_Bob Skier_Bob is offline
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Default Re: What is best brake fluid to use?

Thank you all very much. Agree that going with Wilwood recommendation seems best way to go. Calling them tomorrow to finalize and order.

Mike - just checked out the Kaleco site --- WOW! Cool to learn so much every day on this site. Thanks for taking the time to mention them.
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  #13  
Old Oct 24th, 11, 2:14 PM
UMI Tech UMI Tech is offline
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Default Re: What is best brake fluid to use?

Another vote here to use Wilwood's recommended fluid. Wilwood provides awesome technical support and whatever they say, when it comes to their systems, I follow to the letter. I've always run their stuff on my oval track cars and have had good success.

Good luck.

ramey
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  #14  
Old Oct 25th, 11, 10:05 AM
Geoff1200 Geoff1200 is offline
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Default Re: What is best brake fluid to use?

As a rule, fluid does not compress....but....DOT 5 does have some compressability. Brake pedal is often times a little softer, in my experience.This is why ABS systems don't use 5. Silicone DOT 4 is a real good compromise...
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