Posted by DaninKansas on June 16, 2014 at 06:11:45 from (24.248.193.103):
In Reply to: Re: E85 revisited.... posted by oldtanker on June 15, 2014 at 16:31:30:
Actually very few engines ran 11:1 compression back in the 1960s - and those did were the high performance cars and to take advantage of the compression ratio guys were buying aviation fuel to run down the 1/4 mile. The typical v8 and I6 engine in the other 99.9% of the vehicles ran around 8.5:1 to 9.5:1 compression ratio to use cheaper lower rated octane rated fuel.
The Ford 428 CJ ran 10.6:1 and required premium fuel, the typical 390 engine that went in most of the 4 doors and pickups was 9.5:1 and went to 8.5:1 after 1971.
Most engines today run 9.5:1 to 10.5:1 and run on 83 octane.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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