DIY_EFI Digest V1 #277

[Gordon Couger]

As I recall from my day in the air craft industry the power increase is from
lowered altitude density (more O2 in the carb.).

I also noticed that running a tractor at night often you could gain a gear
on pulling the load. Showing a good deal more power was being produced. Where
I was farming the day time altitude density would exceed 5,000 feet. 115 F and
15 percent humidity.

Gordon


Gordon Couger Senior Software Specialist
Biosystems & Agricultural Engineering Dept.  Oklahoma State Univ.
114 Ag Hall Stillwater, OK 74075
gcouger at master.ceat.okstate.edu

>Same thing... 10 mph difference on a cold damp morning in a Citroen 2cv   (600
 cc flat twin (BMW M/C engine))  ;-)
>----------
>From:  tom cloud[SMTP:cloud at peaches.ph.utexas.edu]
>
>        [ snip ]
>
>>On a side note, I notice that a number of the water injection posts over the
>>last week or so seem to imply that water injection can get more power out of
>>a normally aspirated engine. I don't think that is true. 
>
>I know on my motorcycle(s) -- they always ran noticeably better
>when the humididity was hi.