 914/4 914/6 brake master cylinder, Difference? |
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| Driver174 |
 Feb 24 2025, 03:42 PM
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#1
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Member  Group: Members Posts: 114 Joined: 2-February 17 From: Nevada Member No.: 20,806 Region Association: None 
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I’m looking at a FTE master cylinder for my 1974 -4, and website says it’s for a 70-70 six, and is not compatible with my car.
I’m curious as hat the difference is between the -6 and -4. I rebuilt my complete brake system including an ATe master cylinder two years ago, and now needing to replace the it already. Was told the FTE unit had silicon seals and would withstand the heat better than seals in the ATe. Your thoughts are appreciated |
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| rgalla9146 |
Feb 25 2025, 07:52 AM
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#2
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Advanced Member Group: Members Posts: 4,711 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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In some cases a 23 mm MB master cyl is adapted.
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| flyer86d |
Feb 26 2025, 06:49 AM
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#3
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Member Group: Members Posts: 458 Joined: 12-January 11 From: Corea, Maine Member No.: 12,585 Region Association: North East States |
QUOTE(rgalla9146 @ Feb 25 2025, 09:52 AM)  In some cases a 23 mm MB master cyl is adapted. I had a 23mm Mercedes master cylinder on my 911SC track car with turbo brakes. It was very firm but confidence inspiring. I was standing on the inside of the 90 at Watkins Glen watching my wife. On one lap, I heard a pop as she applied the brakes and then a scraping noise. She continued on and finished the session without any change in lap time. When she got back to the paddock, she mentioned having to pump the brakes once. I inspected the brake pads and one had separated from its backing plate and was gone. Sue said the brakes worked fine! Charlie |
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Posts in this topic
Driver174 914/4 914/6 brake master cylinder Feb 24 2025, 03:42 PM
brant The stock 4 was a 17mm
They are nla
The 911 unit ... Feb 24 2025, 03:55 PM BENBRO02 I believe the larger the master cylinder requires ... Feb 25 2025, 04:25 PM
zoomCat
I believe the larger the master cylinder requires... Feb 25 2025, 04:39 PM flxzcat I use the 23 but I like a stiff pedal, oh, and I u... Feb 25 2025, 05:12 PM bdstone914 @[url=http://www.914world.com/bbs2/index.php?showu... Feb 26 2025, 04:35 AM zoomCat
I use the 23 but I like a stiff pedal, oh, and I ... Feb 26 2025, 09:40 AM Driver174
I use the 23 but I like a stiff pedal, oh, and I ... Feb 26 2025, 10:47 AM |
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