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 05-28-2006, 21:22 Post: 129974
Peters

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 80 s Sentra 65 mpg

Well most of the Sentra's of that era were a collection parts barely rolling in formation but it was the era of the lean burn experiments. Like Ken said they ran well for a time until they burned a hole through the piston. As he wrecked it who knows. They were also experimenting with ceramic pistons to over come this but it is still just a dream.
In the mid 80's a company in Australia had a fuel injection system that used air and fuel like a paint gun to inject fuel into the cylinders. In theory this provided greater atomization of the air. I noticed the other day a car manufacturer talking about the same concept in a new car.






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 05-29-2006, 09:49 Post: 129984
Peters

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 80 s Sentra 65 mpg

I agree Murf he is likely making a mistake in the calculation or using a pump that is generous.
This is the Australia engine design that claimed very high effiencies and was using the air and gas high pressure injection design. The site say Malhindra has bought the technologies so maybe we will see a new tractor engine design?






Link:   Australian Revetec 

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 05-29-2006, 10:07 Post: 129986
Peters

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 80 s Sentra 65 mpg

It could also explain why the thing should never have left Japan.






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 05-29-2006, 13:00 Post: 129992
Peters

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 80 s Sentra 65 mpg

They claim 1/4 the weight and 100% more power. I am not sure this is the same engine I was thinking of. There was another design using a Geneva wheel that uses a slightly different placement. This is out of Australia also.
The other engine was tied to Jack Brabham as with the page below that describes the air/fuel injection technology. The orbital technology is similar also.






Link:   Jack Brabham Engines 
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Website Operations Howto: 80-s-Sentra--65-mpg

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