Since having my SIFAB alloy radiator fitted to my 4/4 Sigma engine, I now notice my fan doesn’t cut in as much, even on real hot days I would need to leave the car running at standstill for quite a while before the fan cuts in.
With the original black plastic coated radiator it used to come on all the time...
I’m not sure if this is a good thing or not ? ...
I only changed it becoaue quite a few on here have had failures with the factory radiators .
