Garry,
An intercooler enhances the performance of the turbocharger. The turbo pump
compresses the air thus heating it up. An intercooler cools the air back
down to deliver cooler/denser air to the carburetors. More boost, more air,
more HP. Most all auto turbo applications come with intercoolers. Rotax
recommend installing an intercooler and provided specific performance specs in
the
installation manual. Integration of an intercooler is much like that of the
radiator and the oil cooler in that it is installation specific. Except in
an intercooler installation, flow and pressure drop is even more critical.
Rotax could not provide a one size fit all accessory.
Hope this helps,
Tam Pho
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