Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Jas on May 20, 2009, 08:36:43 PM

Title: whats just right
Post by: Jas on May 20, 2009, 08:36:43 PM
Will you gain or lose topend or lowend speed with or with out a rear spoiler
pluss wheels is bigger better a 18" or smaller like 15" with depper tyer pros and cons
or is it just looks
can you help with this
 
Jas
Title: whats just right
Post by: probedb on May 20, 2009, 09:45:49 PM
At the speeds you\'re likely to be going I don\'t think most spoilers will do that much.

As for wheels it\'s up to you, bigger than 18s is probably a no no for handling. Also make sure they\'re as light as possible.
Title: whats just right
Post by: Timmy on May 20, 2009, 10:37:03 PM
The stock spoiler reduces rear end lift, the car becomes unstable at high speeds without it, it also tidies the airflow and reduces the drag.
Aftermarket one sometimes are fuctional some are purely for show.

17" wheels i think are considered the best for performance.
Title: whats just right
Post by: jackaleks on May 21, 2009, 08:53:27 AM
i\'ve had mine up to 140-150 on open road (my private open road, of course) with no stability problems. i have no wing and 255/45/17 tyres on the rear.
Title: whats just right
Post by: chrisJDM on May 21, 2009, 09:52:37 AM
im sure i read somewhere that 90% of spoilers dont do jack unless you are doing 150+
Title: whats just right
Post by: Bobbit on May 21, 2009, 10:02:43 AM
the stock spoiler does nothing unless you have a later spec one. I\'ve seen the wool test (bits of wool tped to a car and then photos are taken when the car is moving, the air moves the wool so you can "see" the air flow over the car as the wool moves) on the FD and the 93 spec spoiler is useless.
Title: whats just right
Post by: Jas on June 07, 2009, 08:00:28 PM
so looking at it guess 17" stagerd lite wheels and something like the rz spoiler is the way to go
Title: whats just right
Post by: chrisJDM on June 07, 2009, 08:05:09 PM
yeh lightweight 17\'s would be the best way to go :Thumbsup!