Frederic's radiator cooled intercooler.

Shannen Durphey shannen at grolen.com
Tue Apr 20 23:13:58 GMT 1999


Frederic Breitwieser wrote:
> 
<snips snipped>

> > You say you sourced your IC water at the outlet of the radiator.  How did
> > you hook up the return?  In order for water to flow through the IC, the
> 
>     <snip>
> 
> > back into the lower radiator hose, preferably as close to the water pump
> > as possible.  Even then though, the pressure difference between the inlet
> 
> I tried using the heater core lines, but of course this is post engine, so it
> would heat the intake air, and tapping the bottom radiator hose partially (two
> "Y"' facing each other) resulted in no flow at all, because the plenum
> intercooler is mounted at the top of the engine.  I didn't want to run the
> entire coolant stream through the intercooler, because its a trans/oil cooler
> that i brazed inside, so the piping for fluid flow is much less than the engine
> can withstand.  The final version was a "Y" at both radiator inlet/outlet ports,
> with a 120V pump on the cold side pumping up the hose to the intercooler, to a
> peterson 3 gallon swirl tank, then back into the radiator directly via another
> "Y".  I don't know if this is ideal or not, but it did work at least in a basic
> sense.  The next step is to figure out how to remove the 120V pump, and use
> either an externally mounted belt driven pump, or preferably, the water pump.
> The 120V pump is acceptable for testing 'cuz the engine's not in the truck at
> the moment, its on a stand.
> 
If you're using a trans cooler, is it 3/8" line or smaller?  No
matter, I am picturing drilling and tapping the outlet of the water
pump to feed the cooler, then running the return into the top of the
T-stat housing at an angle to form a venturi of sorts.  If there's
concern about reduced circulation through the block, a plate installed
on the back of the pump rotors can increase pump efficiency.  You'll
lose core value, and each pump would need to be modified similarly.

Doesn't the Dodge have an aluminum timing cover?  Maybe you could tap
into that for a coolant source.  
Shannen




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