-   General Efficiency Discussion (
-   -   Mustang HP2g engine efficiency (

Ernie Rogers 04-25-2009 11:00 PM

Mustang HP2g engine efficiency
Hello, folks,

I know some out there would like to know just how efficient that engine is in the Mustang HP2g. I have the answer.

I used the published data for the car, and added the following information needed to determine engine efficiency--

Wheel rolling resistance coefficient..........0.006
Air density........................................... 1.20 kg/cu.m.
Drive train efficiency, shaft-to-wheels.......85%

Okay, then I calculated the engine efficiency, assuming the numbers are for gasoline, not E85 (giving the car owners the benefit of the doubt). I also did the calculations ignoring wind. Here is the engine brake efficiency range:

104% min to about 112% max.

Based on numbers in their fuel economy log.

I conclude that these folks should receive a prize for the first internal combustion engine to achieve over-unity output.

I admit I may have overlooked some important detail, and in that case I am sure somebody will come forward with that information.

Ernie Rogers

Frank Lee 04-25-2009 11:19 PM


How about a Linc-Volt analysis?

roflwaffle 04-26-2009 11:13 PM

They're running BS95 or whatever, so not counting whatever proportion of the energy is O.K.

All times are GMT -4. The time now is 12:39 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright