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Registered
Join Date: Aug 2006
Location: Steamboat Springs, CO
Posts: 98
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2.7 cams in 2.2 E?
Merry Almost Christmas
I have my 2.2 E engine apart to Timesert and install ARP head studs. Car is a track car only for PCA GT-6 and Vintage. Have the option of installing 1976 2.7 cam assemblies but cannot locate timing specs for the 2.7 cams. Does anyone have 2.7 cam specs? Is this a better choice than the E cams? Thanks Chris
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Chris 2002 Boxster S - summer car Ford Edge - winter car Sold in 2017, 911 '73 RSR Clone, Vintage Racer. Miss it every summer. |
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Max Sluiter
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No, CIS cams are way too conservative. The E will give more top end and midrange pulling power.
CIS is a terrible performance fuel injection system, it is made for emissions and mileage. The E with MFI will zing to redline.
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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Registered
Join Date: Aug 2006
Location: Steamboat Springs, CO
Posts: 98
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Thanks Max
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Chris 2002 Boxster S - summer car Ford Edge - winter car Sold in 2017, 911 '73 RSR Clone, Vintage Racer. Miss it every summer. |
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Chris,
If this is a race car, there are far better choices than E cams, much less those mild 2.7 CIS ones,... ![]() Ultimately, your selection depends on what pistons you have.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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Registered
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I think an early S would be a good cam for a race car. That is what I have in my 2.7. There are some aftermarket choices as well. Steve is an excellent resource for info.
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John Snodgrass 1973 Porsche 911 "Barney" (race car for sale) 2008 Nissan Maxima - Daily Driver 1999 F350 Diesel Crew Cab - Tow Beast 1990 Airstream 36' Land Yacht - Home Away From Home |
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Registered
Join Date: Nov 2000
Location: Longmont, Colorado
Posts: 1,859
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Merry Christmas Chris
good to see you again the above advice is good you want E (you have them) or better cams (if you want to spend the money) thos CIS cams are not the ticket if you have the money, consider S or better (GE60/80?) brant
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914/6 2.0S with twin plug all metal body panels 19quarts of oil 4 gallons of gas and 1826 lbs (wet) |
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Registered
Join Date: Aug 2006
Location: Steamboat Springs, CO
Posts: 98
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Thanks everyone.
I think I'll stay with the 2.2E cams. My longer term plan is to sell this 2.2 and upgrade to a 3.0 so saving my upgrade money for that motor, assuming the market ever recovers. See you on the track in the Spring. Chris
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Chris 2002 Boxster S - summer car Ford Edge - winter car Sold in 2017, 911 '73 RSR Clone, Vintage Racer. Miss it every summer. |
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