Poll: Brake upgrades..what kind of ratio?, F=big/R= big or F=big/R=little or ??? |
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Poll: Brake upgrades..what kind of ratio?, F=big/R= big or F=big/R=little or ??? |
Mueller |
Feb 3 2005, 07:27 PM
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#1
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
okay...for a factory 914 /4, the front calipers (piston area wise) are 1.61 larger than the rear....(42mm and 33mm)
for early 911's (up to '84), the fronts are 1.6 larger from '84 to '89, the fronts are only 1.3 times larger than the rears....then the ratios vary from 1.4 to 1.7 until the arrival of the 1st Twin-turbo, that car has calipers that have piston areas 2X the size of the rears !!!!! I'm just wondering what combo people have successfully ran.....it's interesting to note that the standard Boxster front calipers if bolted to the front of a 911, the Boxster piston area is only 1.05 larger than the standard 911 fronts.....seems like a darn near equal swap, except for the bigger pads you get with the Boxster calipers (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) |
anthony |
Feb 16 2005, 12:17 PM
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#2
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2270 club Group: Benefactors Posts: 3,107 Joined: 1-February 03 From: SF Bay Area, CA Member No.: 218 |
Does this ratio take into account the proportioning valve? It must change the "ratio" in the stock system. Most people, when they add 911 front brakes, remove the proportioning valve to make the rear brakes work more. |
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