Is the electrical fan conversion any good?

[jondee86]

Gnugfur Wrote:Anyway, we ran a 550bhp 200sx S14 on a small track
that we got here and it overheated after one lap. Changed its thermostat, it improved. But after mounting up dual fans that ran constantly when we did laps we never had a problem with overheating.

No mystery here !! The cooling system is essentially a water to air heat
exchanger. For the engine temperature to remain stable, the heat gain to
the water from combustion etc, must equal the heat lost to the air.

In any race car the cooling system must be rated to handle the heat load
from the engine. In your case, the cooling system was inadequate for the
power output on a low (road) speed track. You increased the airflow (and
therefore the heat rejection) by installing two fans. On a faster track, one
fan would probably have been enough

Cheers... jondee86