Just fitted a rs 500 intercooler and new radiator to my sapphire cosworth car. It runs fine on tick over and fans work but when driving at 60mph noticed that the fans are on and when pull up to lights they go off. Any ideas?

 

are they staying in for long periods of time??have you used the standard fan switch?

 

No not staying on long. Yeah new standard fan switch

 

Not an alloy new rad is it? They need a different swithch for the temps

 

as above if it alloy rad you need a different switch!stu supplies these fella!

 

Yeah alloy rad. What switch do i need and where from?

 

contact stu at msd in bispham as he has tested many fan switchs and found one that is best suited to alloy rads i think he charges £20 a piece for them not sure if that includes postage
give him a bell he a very helpful chap 01253 508400

 

Highly recommended - they do the business and sort out the changes in rad material. I also like the fact they are coloured green for some reason

 

Thanks everyone. I ordered one today fom Stu

 

me 2

 

Quality bit of kit these switches!

Got an alloy rad in mine and the fan was on virtually permanently!

Fitted this one and its spot on now!!