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spuggy spuggy is offline
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Join Date: Jul 2003
Location: Perfidious Albion
Posts: 4,184
Quote:
Originally Posted by tonyduc View Post
Are boosters themselves somewhat generic ?
All the master cylinders interchange, and so do the boosters, AFAIK.

Quote:
Originally Posted by tonyduc View Post
AI ask because I cannot find any available for a 77 from the Porsche parts suppliers like Pelican, but I do see them from ********, O'Reilly, Advanced etc. There are plenty of rebuild kits for the MC, but not for the booster-just wondering if rebuilding it is an option.
Thanks
1977 MY used a one-year-only part, 911.355.027.00, for both 930 & 911S of that year. A guy with an otherwise original '77 930 was very happy to take my booster when I upgraded to a late 930 servo, M/C etc for big brakes, as his had failed.

1978 up, SCs, 3.2 and 930s used a different booster, 930.355.027.00. The 85- turbos switched to 930.355.027.02.

I think the 78 on boosters are 8" diameter rather than 7"; bolted straight in to my original pedestal. Pretty sure the 85-up 930 servo has a bigger "slave" or "assist" ratio, hence my choosing it (but my pedal still feels like there's a block of wood under it).

Also pretty sure I got that from information Bill V posted. He's the man to ask.
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'77 S with '78 930 power and a few other things.

Last edited by spuggy; 07-11-2022 at 12:37 PM.. Reason: usage of "later" was vague; provide dates.
Old 07-11-2022, 12:28 PM
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