roughly 18 or so
3, HUGE improvement
*APR GTC-200 universal wing
* some misc bolts from ace hardware
*steel flat bar similar to this
available at home depot then cut into various lengths
*plastic ABS sheet from speedway motors
Size/thickness of materials:
1/8" thick plastic sheeting for airdam, L Stock to mount uni-GTC 200, 1.5" x 1.5" L stock, 1/2" x 1/8" steel flat bar.
airdam is attacked to front bumper via washers/nuts/bolts
Tracks tested on:
INDE Motorsports Ranch, 2.3 mile configuration 4
Race/TT class built for:
To start off, I got the APR GTC-200 for relatively free from my teammate who got it off craigslist for $40. yes, forty bucks. got to love crackhead pricing. I mounted that to the trunk using 1.5"x1.5" L stock, cut into ~10" strips and then grinded down into a wedge shape so that I could still use the trunk. still a very tight fit and has taken some paint off the trunk. oh well.
the airdam material is 1/8" thick and comes in a 10 foot roll from speedwaymotors.com. Found this material from a post within this thread, youd be a fool to not use this stuff. super easy to cut, stiff but flexible.
covers up MOST of the tire sticking out. current wheel/tire is a 15x8 +25 on 205/50 NT01s.
HUGE improvement with on-track behavior. before, all I had was a GV-replica lip. With this, I was able to take a corner at the end of the straight at INDE WOT in 4th, were others (comparing with miatas) had to brake and then turn in. There were a few times where I almost lost the rear end due to hitting a berm, but the car was VERY predictable to get back in control--almost drift like-- whereas before I would've probably spun out. turning the wheel seemed to be noticeably slower, yet the car went wherever I pointed the wheel and just stuck.
not my video, but this is the track/configuration I ran:
This was my first day with the aero on and as much of a shock it was to me and was trying to get used to it, I was able to run a 1:50.016 with this package/205 NT01s with roughly a day of tread left on them, FM front bar w/stock rear, 4.3 LSD, koni yellows with 500F/350R springs and a '99 motor swap w/122hp to the wheels. The next comparable Miata/my competition to mine was just over 3 seconds behind my time, usually we are within a half second.
track record is a 1:47.493 in TTD in a supercharged Miata with fresh hoosier 225's..
im hoping to break that record next time I hit that track in the fall with fresh hoosiers. also debating on tossing in the 4.78 gears I have sitting here.
as the car sits, I still have 6 points left before im maxed in D.