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Octane requirements
Don't have a manual to check but I'm looking to find out is what the minimum octane requirements are for a 3.0 w/ 9.3:1 compression?
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joe ------------------ '69 911 E Targa - aka "RoxiE" |
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03-27-2008, 02:49 PM
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i try to use a quality premium grade. chevron, shell, 76 etc.
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http://www.dropfiles.net//files/750/cars%20001.jpg 2003 golf TDI http://www.dropfiles.net//files/750/...aven%20013.jpg 1983 SC |
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03-27-2008, 03:31 PM
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In Mass. we can select from 87, 89, 91, 93 & 94 Octane on the street. I usually go with the 93, but I thought the US 3.2s & 3.0s could run on 91.
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joe ------------------ '69 911 E Targa - aka "RoxiE" |
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03-28-2008, 09:44 AM
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anybody?
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joe ------------------ '69 911 E Targa - aka "RoxiE" |
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05-07-2008, 05:17 PM
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Join Date: May 2001
Location: Peoples Republic of Long Beach, NY
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better to be safer than sorry.
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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05-07-2008, 05:21 PM
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Location: Greater PDX, OR
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My 1982 911SC Manual says:
Fuel Supply Regular, 91 RON (87 CLC on U.S. fuel pumps), gasoline, UNLEADED FUEL ONLY. If regular fuel of sufficient quality in not available, use high-octane fuel or mix regular with high-octane fuel. In Oregon, I use premium fuel which i believe is 91 on the pump label and have no problems.
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Jeff '82SC Pacific Blue '02 C4S Silver (Gone but fondly remembered) '11 GTS Amethyst |
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05-07-2008, 06:17 PM
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Air Medal or two
Join Date: Jul 2003
Location: cross roads
Posts: 14,123
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Depends on the C/R
Some one here has a chart............................................. ......
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D troop 3/5 Air Cav,( Bastard CAV) and 162 Assult Helicopter Co- (Vultures) South of Saigon, U Minh Forest, Delta, and all parts in between |
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05-07-2008, 07:21 PM
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Location: Peoples Republic of Long Beach, NY
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gas has become crap to start with.
911 upper cylinder areas is inadequately cooled imho. unless your using digital data acquisition use only high test. Grady posted some great info on engine monitoring CHT probe placement
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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05-07-2008, 07:38 PM
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Location: San Diego
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+1 Its a little depressing. We can build and tune the snot out our toys but we'll always be limited by the fuel that is available.
Here is a good thread on Rennlist: http://forums.rennlist.com/rennforums/showthread.php?t=419556&highlight=octane If I were you, I wouldn't use anything less than the best gas I could buy for my Porsche. The difference in price is negligible. Have you ever seen a piston with a hole burned in it from low octane gas that detonated?
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Donald 70 S Coupe 03 SLK 01 FXDX 05 Police Interceptor |
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05-07-2008, 08:51 PM
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1969 Porsche 911 E 3.0
1983 SC
VW Golf TDI
