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Old 08-17-2011, 02:51 PM   #59 (permalink)
California98Civic
60+ mpg at posted speeds
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 1,187

Black and Green - '98 Civic DX Coupe
Team Honda
90 day: 64.83 mpg (US)
Thanks: 381
Thanked 163 Times in 113 Posts
Quote:
Originally Posted by oil pan 4 View Post
Has any one considered running water mist or water methanol mist injection on there turboed gasoline engine?
You mean that water injection stuff? I have read about it a little. Seems dangerous to the engine if your system is unreliable. But I have not seen much in the way of posts on this site.

Quote:
Originally Posted by pgfpro View Post
My best increase in fuel mileage was with the Greddy 15G turbo and Greddy cast turbo manifold. This was all done using a Neptune Management system. You could easily go with a 1.5L and still have great power when needed. Feel free to pm with any questions.
Thanks for this pgfpro. I'll read some more and pm you if I have questions now or later. Thanks. -james
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Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.

Calculators: standard deviation, Ohms Law, & drag HP losses.
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