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Registered
Join Date: Nov 2006
Location: Norway
Posts: 25
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Which PMOs !!!
I have a -79 SC engine large ports, SS 3.2 syl, JE 9.8 pistons. 964 cams, ssi ex. blue printed, and would like to have a pair of PMOs on this engine.
The car is mostly driven on common roads. Should I go for 40s or 46s ?? |
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08-06-2008, 11:10 AM
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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46's would be appropriate w/38mm venturis.
__________________
Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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08-06-2008, 11:47 AM
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Registered
Join Date: Nov 2006
Location: Norway
Posts: 25
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Will this give some more HP ??
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08-08-2008, 03:22 AM
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Quote:
More HP than CIS???? OMG, yes. 
__________________
Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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08-08-2008, 10:59 AM
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Registered
Join Date: Nov 2006
Location: Norway
Posts: 25
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Thank you Steve !!!!
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08-08-2008, 11:36 AM
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Registered
Join Date: May 2003
Posts: 3,346
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My race group has found about a 7HP peak improvement with 46mm carbs vs 40mm carbs. This only occurs above about 6000 RPM.
-Andy
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72 Carrera RS replica, Spec 911 racer Last edited by Eagledriver; 08-10-2008 at 07:56 PM.. Reason: changed 60 to 40 |
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08-10-2008, 07:56 PM
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