My Rover V8 car gets very warm under the bonnet. I have done a couple of checks and the incoming air temp is > 20 degC higher than ambient. Based on the assumption of 1% more bhp per 7deg difference in theory I should get 2-3% more bhp. I may look to getting cool air in and see if I can feel a difference. The ultimate test would be a rolling road though. I wonder how the Gems system would react to the cooler air. That is the crux. The MAF is just after the filter box and no easy moving of it without fairly major surgery. I am not chasing more bhp/torque but cooler air is beckoning.
