If you have a look at some racing sedans (old DTM cars in particular), you'll notice that they all have the exhaust swept up into the low pressure area behind the car.
I'm not sure if that was in an attempt to either:
reduce exhuast backpressure,
get the exhuaust gas out of the underbosy airstream or
reduce drag by letting the exhuast gas fill the void behind the car
Either way, there would be some suction on the end, and it mustn't have hurt anything, or they wouldn't have done it..
Tue, 25 June 2002 07:50
