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Mazda Rotary Club

Cars by Model Type => 2nd generation RX-7's => Topic started by: m1tch on May 15, 2009, 11:39:28 PM

Title: Subtle rear diffuser
Post by: m1tch on May 15, 2009, 11:39:28 PM
Hi guys, just wondering if anyone knows any good places or designs of subtle rear diffusers for FCs, the ones I have seen are a bit big for a subtle aero package eg:

(http://tunerzine.com/coverage/249/images/tokyoautosalon_day1-206.jpg)

Im just looking for something subtle that does the job of giving me better rear end traction :)
Title: Subtle rear diffuser
Post by: Nocturnal on May 16, 2009, 01:13:28 PM
If it helps, on Rotary Art (//www.Rotaryart.co.uk) there is a fibreglass diffuser for £125, which I\'m told is an RE Amemiya rep. No idea how suitable it is for an FC, but I came close to buying one to adapt for the MX5, and it looked pretty straightforward.
Title: Subtle rear diffuser
Post by: L18M on May 17, 2009, 12:34:05 AM
where did you find the one for £125?
the only one i see is £200 which is same as above.. but without the curvey things on either side..
Title: Subtle rear diffuser
Post by: m1tch on May 17, 2009, 08:49:52 AM
I just chatted to JM Garage and basically for a rear diffuser to work correctly I would need to have those vortex generators to get any benefit to a rear diffuser, I think I might get some vortex generators for the roof to draw air onto the rear spoiler instead :) hmmm
Title: Subtle rear diffuser
Post by: Nocturnal on May 17, 2009, 12:15:04 PM
The £125 diffusers are Rotary Arts \'Xtreme diffuser\'  (http://www.rotaryart.co.uk/acatalog/RotaryArt_Xtreme_Deffusers_FD.html).
 
I\'m not an aerodynamic expert, but as far as I understand, a diffuser can work perfectly fine without vortex generators (such as canards). But you do need a perfectly flat underbody, otherwise the air is too \'dirty\' by the time it reaches the diffuser for it to make any great difference. I tried looking into it quite heavily (such as the angles that a diffuser needs to be placed at, why creating a vortex is good for the car), and I essentially found that the more I learned, the stupider I realised I was.
Title: Subtle rear diffuser
Post by: m1tch on May 17, 2009, 01:46:52 PM
That fits the FD, not the FC I don\'t think
Title: Subtle rear diffuser
Post by: rx7boy on May 17, 2009, 01:50:32 PM
Quote from: m1tch;608377That fits the FD, not the FC I don\'t think
#

Was just about to write that !!!yeah its for FD,
Title: Subtle rear diffuser
Post by: Nocturnal on May 17, 2009, 05:08:52 PM
If memory serves me right, they\'re the same.
Title: Subtle rear diffuser
Post by: L18M on June 13, 2009, 12:33:31 AM
emailed gary about the diffuser..
i think they are diff.. but either way.. the fc one is same price as the fd one.
was a error in updating the website :)

comes with bracket (as top pic) but without the wide things that stickout on the side.
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