All Things Mk5 > Performance Modifications
Improving aerodynamics with aftermarket parts
the bruce:
The tank isn't the problem, Ric, but rear exhaust + lower arms are. :fighting:
fuscobal:
Bruce is right but for an efficient diffuser it depends how much further away from the rear bumper you want to go. As the slope/angle is constant (I've read 10-12deg would be best), if you want to make a rear diffuser that extends to the rear wheels, you need to either start the diffuser very low, either reach a high point on the bumper. The diffuser needs to be trimmed around the rear arms as they need to be able to move up-down while the car is on a ramp !
Richn83:
Hi bruce it is the problem in front of the rear control arms, where I have fitted the larger stone guards backwards is a very messy area that I want to clean up as well as the area across the rear muffler.
I know you guys are after extra down force but i think this is difficult so I think first and to keep the car looking oem the first task is to try and further smooth off the underside of the car as much as can be.
I have some small panels that I want to try over the exhaust and area by the fuel filter as the fuel tank blocks the are in the centre, what I really want is a larger panel to run from the rear axle mounting points I have them on both sides for the pass at panel with cut outs for the suspension arms over the exhaust and finally mount on the rear bumper to fit flush with the tiny lip I think this will give a smoother air flow and hopefully improve the aero up to higher motor way speeds beyond the existing blue motion panels. And the shape I think will have some diffuser qualities such as an expansion to slow the air.
Aluminium can also touch the exhaust without fear of melting and can act as a heatsink.
Tfsi_Mike:
Need to get myself a new bluemotion undertray :sad1:
mkviken:
the bruce this ones for you
never thought id say it but i really want a volvo!
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