All Things Mk5 > Performance Modifications
Improving aerodynamics with aftermarket parts
rex:
Fuscobal... I looked at the under carriage. If we just give up the rear muffler and possibly install another muffler in the center of the car we might just install a diffuser and not make so much noise...
Richn83:
I think you can manage a couple of panels on the rear to cover the areas by the fuel filter and the first muffler for a start by using aluminium panels that aren't heat dependant you could improve the flow and another sheet could extend from this out between the rear suspension arms over the exhaust, it doesn't have to function as a diffuser it just has to smooth the flow to reduce the rear lift
If you can also create an amount of expansion by creating an angle to expand the air flow to reduce drag all the better and add some small ridges to control the lateral movement of the air then that is all the better I think it isn't that difficult rear fixing could also be metal strap fixed to the exhaust rear muffler.
rex:
--- Quote from: the bruce on February 02, 2012, 08:28:51 pm ---
--- End quote ---
Guys.. why is the exhaust so long? Is there any reason why it shouldn't stop where the diffuser begins?
the bruce:
Yes. Otherwise it would burn the diffusor.
There also may be some reasons dependent on the rules (RCN).
Richn83:
Bruce your friends car in the picture does it have the standard fuel tank or a race version, just wondering if he has fitted that panel flush under the fuel tank.
You don't have more pictures of the whole underside?
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