 Brake Pressure Regulator on Race Car |
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| jhynesrockmtn |
 Apr 24 2019, 07:29 AM
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#1
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Member  Group: Members Posts: 420 Joined: 13-June 16 From: spokane wa Member No.: 20,100 Region Association: Pacific Northwest 
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I am putting together a 4 cylinder vintage race car a friend who passed 5 years ago had started. I'm getting calipers from PMB, going with stock brakes for now. How many are running the stock brake pressure regulator in their race/track cars? Should I remove it and put in a proportioning valve?
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| campbellcj |
May 12 2019, 07:01 AM
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#2
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I can't Re Member Group: Members Posts: 4,550 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California
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With stock brakes I'm not sure I would do it. In my case I have one, with 911 Carrera brakes, but it stays full open all the time and I just as well could have a 'tee'. I've left it in the car mainly in case of rain where I figure I may at some point want to dial-down the rears, and also cuz changing any of this stuff would be a PITA.
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| ChrisFoley |
May 14 2019, 07:14 AM
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#3
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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QUOTE(campbellcj @ May 12 2019, 08:01 AM)  ... I've left it in the car mainly in case of rain where I figure I may at some point want to dial-down the rears... Actually, it is better to increase braking pressure to the rear in wet conditions. Reduced overall grip from the wet means less weight transfer to the front is possible, thereby allowing the rear brakes to do a greater proportion of the work. I am an advocate for adjustable brake bias in any race car. If you don't have it you are leaving time on the table. If you have it but don't know how to use it, you need more practice with threshold braking. |
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| GregAmy |
May 14 2019, 07:33 AM
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#4
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Advanced Member Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States
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QUOTE(ChrisFoley @ May 14 2019, 09:14 AM) Actually, it is better to increase braking pressure to the rear in wet conditions. ^^^ Many think otherwise because we were fed a steady diet of Trans Am and Indy cars spinning in the rain, with talking heads commenting about how they had too much rear brake bias. Which is true; it's a fine line between hero and zero... |
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Posts in this topic
jhynesrockmtn Brake Pressure Regulator on Race Car Apr 24 2019, 07:29 AM
GregAmy Should I remove it and put in a proportioning valv... Apr 24 2019, 08:16 AM
Krieger Under the advice of Mr Shea at PMB I am using it o... May 12 2019, 10:05 AM stownsen914 Correct that that it's not a true proportionin... May 14 2019, 06:57 AM |
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