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An air to water intercooler is employed, as opposed to the more common air to air.
There is more work involved with an air to water system, but I would have struggled
to find somewhere to mount the large intercooler element used in an air to air system.
A CB400 motorcycle radiator is used to remove heat from the cooling liquid. The
heat exchanger is mounted directly above the inlet manifold and was originally designed
for marine turbocharger applications. An electric water pump is used to circulate
the cooling liquid and is manufactured by Jabsco 59500 Series. An electric fan draws
air through the radiator at slow ground speed, this is controlled by the ECU and
switches off at a predetermined speed. The electric water pump turns on at a predetermined
engine temperature and then stays on, in fact the fan will not turn on until this
temperature is reached as well.
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