Rear Diffuser? How much does it help?
#1
Rear Diffuser? How much does it help?
Hi guys, I've tried to search for the benefits of a rear underbody diffuser at a track event, but didn't really find anything in the racing/comp threads. Does anyone have any info on this? Thanks!
-stephen
-stephen
#3
Well there's no doubt that aerodynamics help. However, without a wind tunnel, it's hard to quantify how much they help and on what tracks at what speeds. There was a thread in which underbody panels/aero was discussed not too long ago, too.
#5
Originally Posted by Nobody,Jun 27 2006, 01:00 PM
Well there's no doubt that aerodynamics help. However, without a wind tunnel, it's hard to quantify how much they help and on what tracks at what speeds. There was a thread in which underbody panels/aero was discussed not too long ago, too.
-stephen
#6
A diffuser on its own probably gets you nothing measurable but I'm sure it would work very well as part of a complete aero package designed by an expert and tested in a tunnel. That said there is more time and speed to be gained in driver mods vs. vehicle mods.
#7
Originally Posted by cthree,Jun 29 2006, 07:15 AM
A diffuser on its own probably gets you nothing measurable but I'm sure it would work very well as part of a complete aero package
I know that if the angle of the diffuser is between 8-12 degrees then it is possible to get downforce without the drag that you get from a wing, but the angle is just one of the pieces to the puzzle. Our rear ends do appear to allow for a diffuser of that angle.
I too would like to know if anyone is running a diffuser to any benefit. I wouldn't like one of the gargantuan Nascar type diffusers.
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#8
isn't the diffuser effectiveness as much dependent on the ride height..and cleaning up the airflow with a flat bottom..
it's a shame honda didn't do anything with the rear aero.. apart from making it a parachute.. even the most mundane cars have been running rear bumpers that help rather than hinder the areo..
for example, one of the new saabs.. with a shaped rear bumper.
it's a shame honda didn't do anything with the rear aero.. apart from making it a parachute.. even the most mundane cars have been running rear bumpers that help rather than hinder the areo..
for example, one of the new saabs.. with a shaped rear bumper.