Yes mate they are on the inter cooler, air will flow via the path of least resistance... in lots of cases this is through the intercooler and then out the gap between the cooler and rad, you need some way of forcing the air which has passed through the intercooler through the rad as well, rather than around which is what i believe is happening.

My rad is very close to the intercooler (touching), my fans don't come on when moving above 40, my temps are perfect on the motorway too. Give it a go, let you fans kick in and have a feel around the rad, you'll notice most of the air is blowing out from between them.

The above brings me back to my original plan of making a sealed rad/intercooler pack, although looking at my car it would probably be a mare to fit and remove... You see lots of OEM cars with fans after the rad with a cowl, the purpose of the cowling is to increase the fans efficiency (in a way), rather than the air being pulled through in a relatively small patch of rad (as it would be with no cowl), the fans pull air in from across the whole rad, ideally I would employ a similar system, fans behind the rad/intercooler pack, with a cowling and two high flow 10" fans... sadly to do this the turbo must be moved to above the gearbox.

I can see why blocking air flow after the rad with a fan is marginally better than blocking before, but the whole system still relies on air flow through the rad, a restriction after will stop this through flow of air, im not convinced the fans are such a large restriction any way....

Rob,