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Scott S |
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#1
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Small Member ![]() ![]() ![]() Group: Members Posts: 1,698 Joined: 30-April 03 From: Colorado Member No.: 633 ![]() |
Hi All -
Got a line on a rebuilt 2.7 out of a 1977 911S. It is 100% complete including the full CIS system. What kind of power loss would I experience if I stripped off the CIS and went with carbs? The motor is only 165hp to begin with... Thanks! Scott S |
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Cupomeat |
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#2
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missing my NY 914 in VA ![]() ![]() ![]() Group: Members Posts: 1,338 Joined: 26-November 07 From: Oakton VA Member No.: 8,376 Region Association: MidAtlantic Region ![]() |
I cannot support the following with empirical evidence, BUT;
I would say that you would not lose any peak hp with the switch. You will probably lose a little driveability as the CIS gets you a feedback Lamba circuit (correct me if it doesn't have a O2 sensor) and is more flexible for all kinds of weather. Also, CIS has a large plate (Read: Restrictor) in the airflow which controls the amount of fuel in the fuel distributor and this has an impact on the pumping losses and efficiency of the engine. All in all, I'd think you could get about the same peak HP. That being said, I'd stick with the FI as it will be a better car to drive. |
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