fuel cooling intake air

Bruce Plecan nacelp at bright.net
Sat Jul 8 03:50:07 GMT 2000


> If you add anything even resembling a stoich mixture before the IC, some
of
> it will condense out in the IC, and puddle! Not a good thing for
consistent
> drivability! Or--for engine life!

NOT EVEN, close to that.
Was thinking along the lines of a 15lb/hr injector, and 50% DC, and lean
from there if possible.  One of the BIG items is not allowing any puddling.
Now the injector at the throttle body will be another matter, depending on
distribution.
Grumpy


>
> Greg
>
> >Grumpy,
> >
> >Won't the evaporation of the fuel cool the charge
> >where ever the fuel is added?  That is, if the fuel is
> >added before the intercooler then the fuel will
> >evaporate more quickly, and there will still be the
> >same amount of cooling.
> >However, if you add fuel before the intercooler then
> >the mix is more dense while traveling through the
> >intercooler.  What will that do to the the cooling
> >efficiency of the intercooler?  My knee jerk reaction
> >is that since the charge is more dense the volume will
> >be decreased and the charge will travel more slowly.
> >The slower charge will have more time in contact with
> >the walls and the efficiency will increase.  Note that
> >the change in exchange efficiency is a non-linear
> >curve that is almost flat at high velocity.
> >dh
> >
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