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Registered
Join Date: Jan 2006
Location: Clayton NC
Posts: 1,674
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quick questions
What is the compression ratio for a 2.4T and can mid grade gas be used, 89 octane.
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gary 70T coupe forever almost done 88 Carrera Targa diamond blue |
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,516
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As I recall, 2.4 S is 8.5 CR, E is 8.0, T is 7.5 CR.
Anything will run in any of the CRs |
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If its a stock mfi car and you don't run a lot of advance, then 87 works just fine.
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72 911 Although it is done at the moment, it will never be finished. |
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Registered
Join Date: Jan 2006
Location: Clayton NC
Posts: 1,674
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Now that was quick. Thanks.
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gary 70T coupe forever almost done 88 Carrera Targa diamond blue |
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Interesting, but here in Montana (and elsewhere too) I can find alcohol free gasoline but it's 91 octane. Am I wasting my money? By avoiding the water-gathering nature of ethanol, I don't think so. Should I adjust my mixture to compensate? (I have a '75 911 Carrera engine.)
Questions beget more questions!!! Thanks, Tom |
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Registered
Join Date: May 2002
Location: Portland, Oregon
Posts: 12,667
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Tom:
The risk of ethanol to our cars is from corrosion of the steel and rubber parts wetted by the fuel. The metal corrodes and the original rubber gaskets are not compatible with ethanol. The octane is a secondary concern. It does not hurt to have too much octane.
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Harry 1970 VW Sunroof Bus - "The Magic Bus" 1971 Jaguar XKE 2+2 V12 Coupe - {insert name here} 1973.5 911T Targa - "Smokey" 2020 MB E350 4Matic |
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