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Old 05-26-2012, 11:17 AM   #8 (permalink)
brent777
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Join Date: May 2012
Location: tahlequah,ok
Posts: 76

ticker - '97 nissan d21 xe
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90 day: 27.06 mpg (US)
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Quote:
Originally Posted by mwebb View Post
all systems run most of the time at an
Air to Fuel ratio of 14.64 to 1
1 part fuel
14.64 parts air
by weight

so
1 part of fuel will have much less influence on the temperature of the complete mass entering the combustion chamber than the 14.64 parts of air

and
on systems that have a return line
that extra unused very heated fuel goes back to the fuel tank , heating the fuel in the tank
which causes heavy duty evaporation and pressure build up in the fuel tank much of that pressure and HC
can
be vented
to atmosphere
because most systems are not designed to handle that scenario
fuel vented to atmosphere does not increase FE as it is
wasted

10% improvement .... not very likely


your right!!!!!!!!! but what if we bypass the return line?
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