That engine wasn't Ethanol only but it did run better on a Ethanol Blends.
Quote:
Originally Posted by serialk11r
Yea that's right, Flex fuel engines would ideally have variable compression (which is somewhat difficult to implement), different spark timing for different fuel, and direct injection which makes a bigger difference on ethanol since its latent heat of vaporization is very high.
The Lotus omnivore concept engine basically has this, although that's not anything close to a production engine.
|
The omnivore was a good concept but I see more merit for turbocharged engines with high Static compression. They would run efficient on Gasoline during partial loads but they trade some power and efficiency at moderate to heavy loads. And then run at full power and efficiency with E85 or even a midgrade like the Ricardo engine.
I still see Ethanol as the power with efficiency option unless they start making Ethanol fueled Diesel engines in the US.
And 82mm 4g63, please stop calling the MPG loss efficiency loss. That word you keep using, it doesn't mean what you think it means.