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ssi's on a 1975 911S 2.7 HP gain/oil lines
What hp gain can i expect if i upgrade the stock 2.7 exhaust to SSI's?
the engine is CIS and mostly stock. The car has a carerra front fender mounted oil cooler and i was wondering if i need any additional or different oil lines with the SSI's?
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1975 911S Targa Silver Anniversary Edition |
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12-21-2014, 03:45 PM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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10 BHP difference between the '74 & later 2.7's, all due to differences in the HE's and mufflers.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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12-21-2014, 04:16 PM
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I just replace the stock HX and exhaust on my '76 911S 2.7 with SSIs and a '74 2-in-1-out muffler. I haven't dyno'd the car, but the car definitely has more pep! I've read up to a 15 HP pick-up but someone like Steve at Rennsport Systems is more qualified to comment than I.
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1976 911S, sleeping for 13 years, back to life in 2013! |
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12-21-2014, 05:27 PM
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10 hp is pretty good
10 hp on a 165 hp car is pretty good boost.
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1975 911S Targa Silver Anniversary Edition |
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12-22-2014, 07:34 PM
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