-Nemesis-
New Member
Max you really need to follow through on this:
http://lextreme.com/forums/showthread.php?t=4183&page=2
http://lextreme.com/forums/showthread.php?t=4183&page=2
Air will only flow if there is a pressure differential. This is a really important point to grasp – air doesn’t pass through the radiator just because the car is moving forward. Instead, there needs to be a higher pressure in front of the radiator and a lower pressure behind it – that is, a difference in pressure.
Article:So the airflow through a radiator doesn’t depend on the pressure in front of the core; it depends on the pressure difference across the core. IOTW, the air exit is just as important as the air entrance – if the air exits aren’t big enough (or the airflow doesn’t pas through them quickly enough), pressure will build up on the downstream side of the heat exchanger, decreasing the flow that’s occurring through it.
Bonnet entrance vents – eg to an intercooler – are located and shaped to build-up a positive pressure on one side of the heat exchanger. For example, this Impreza WRX uses a very large forward-facing scoop to cause increased air pressure on the top surface of the intercooler. If at the same time there is a lower pressure on the other side of the ‘cooler, air flows through it. However, this in turn directs more airflow into the underbonnet space, creating an even greater need for a lot of exit flow capability.
So if you’ve added a bonnet scoop to pick up air – or you have enlarged the standard scoop – it’s quite possible that there’s a pressure build-up under the bonnet which is dropping the efficiency of your radiator, intercooler, oil cooler and/or air-conditioning condenser.
Get rid of that pressure build-up and all of the above will work better...
No probs mate. You certainly know someone who's good with the bling metal fab, looking goodMax Hardcore said:We have swapped the Hoses around a couple of days ago, and i will be testing over the next few days but i can say it runs much cooler now......
Thanks Nemises and Twisty, thanks to your keen eye i may be able to get an m90 under there seeing it cools now![]()