Hybrid Car – More Fun with Less Gas

simple stirling hot air engine made at home with simple tools ,2 cans a baloon - Page 26

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Posted by Johny B Good on February 24, 2012, 3:03 am

  One big error in that wiki article, "The intake vacuum creates the drag  
effect felt in gasoline engines when going down a hill with the throttle  
closed." is total bollocks.

  I've actually verified the theory, regarding reduced pumping losses when  
a gasoline (petrol) engine's throttle is closed, by switching the ignition  
off when rolling down a suitable incline and feeling the variation in  
retardation due to operation of the accelerator (gas) pedal as if it were  
the brake pedal. Of course, this was with a vehicle without all this new  
fangled engine management junk fitted.

Regards JB Good

Posted by Your name on February 17, 2012, 5:46 pm


I like the bandsaw...

Posted by Jim Wilkins on February 17, 2012, 6:16 pm


Motorcycle wheels turned out to work very well. The previous owner had
burned the rear tire to the cords, giving them almost the perfect crown. I
had to grind down the front tire to match. Both wheels have axles protruding
from very good bearings and the rear has the convenient sprocket to drive

The straight-line ladder frame is much simpler and stiffer than the usual C
frame and still gives 13" of throat depth.


Posted by harry k on February 15, 2012, 5:25 pm
Your saying so does not reality make.  Post one cite showing that any
are being produced.

Of course you can't. None are being produced and if even one exists it
is in a museum. IIRC none were ever sold, only given to a few people
for real world testing and all destroyed afterward.  What was your

Harry K

Posted by News on February 17, 2012, 4:02 pm
 harry k wrote:

Do some Googling (do you know what that is?) and many jouros, from respected
papers and mags, have ridden in the car.

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