986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Has Anyone Modified the Front Radiator Intakes?

Steve Tinker · 12-23-2012, 08:54 PM

You're probably right, but a race car has totally different requirements to a roadcar.
I'll bet the ALMS / Rolex GT3's don't have A/C rads fitted and they probably don't have electrical cooling fans installed either. The screens are only there to protect them from flying debris.
The amount of air passing over the radiator surfaces @ 150mph is more than enough to cool the engine - running @ slower road speeds with many stop / start requirements will load up the cooling system far higher than on the track.

12-23-2012, 08:54 PM	#17
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	You're probably right, but a race car has totally different requirements to a roadcar. I'll bet the ALMS / Rolex GT3's don't have A/C rads fitted and they probably don't have electrical cooling fans installed either. The screens are only there to protect them from flying debris. The amount of air passing over the radiator surfaces @ 150mph is more than enough to cool the engine - running @ slower road speeds with many stop / start requirements will load up the cooling system far higher than on the track. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.