Thanks for the replies guys...
Yeah thats what ive heard..but i guess its pretty much the last thing on the car that hasnt been upgraded ? running 2530's, bigger injectors, fuel pump, clutch etc..motor in the car is also only 20,000 km old (been upgraded with fresh R33 GTR parts and some other goodies)
And plus it worries me on those 40c days having the 20yr old standard cooler there ? and I've heard the standed core runs out of its 'efficiency' range past 300kw ?
cheers