Your splitter looks very interesting. You might need to balance out the car with a DIY rear Gurney Flap like the one Billy Johnson built for me in his parents garage. I was hesitant to put it on for about a year because i wasn't sure the performance was going to overcome the visual appeal of this contraption. Billy kept asking me after every track event "Did you put it on yet? How did it work?"? I finally gave in and... wow did it make a huge difference!! My lap times immediately dropped at every track by 2-4 seconds. Seriously, these are my home tracks that my lap times had leveled off at for the past 2 years. The car is so planted in the rear now that I can turn and brake with so much more confidence and grip. My corner exit speeds are quicker which really helps at the end of the straights agains todays high horsepower cars. My car has a vented hood, BBK on front, I/H/E, non compliance bits, PFC01 pads, R compound NTO1 tires, short gears and Penske double coilovers. Bone stock motor with 110,000 miles. The gurney flap was the single biggest improvement besides the Penske's and R compound tires. I'm a new believer in aero and I'm debating getting a real wing and splitter now... However, I have so much pride in Billy's spoiler that It's going to be hard for me to replace it with a real wing. It gets a ton of comments at the track which is fun.
- I picked up almost 4 seconds at Cal Speedway and 7mph entering turn one (was 137mph, now 145mph). Now 1:52.64
- I picked up 4 seconds at Laguna Seca. Now running 1:40.6X. Should easily get into the high 1:30's with new R comps.
- Picked up almost 3 seconds at Buttonwillow. 2:02.7x (I had been running 2:05's for 2 years). The car has a lot more in it, but I'm just not very good on this track. It's my worst track.
- I picked up about 3 seconds at Willow Springs as well, but don't recall my lap times.
By the way, the wing is far more secure than the photo's show. It has two c shaped arms that go around the front of the stock wing and are tie wrapped around on the backside. It handles 145mph wind with no issues. I keep a nice soft chamois and towel around my stock wing for padding and so my paint doesn't get scratched. I've seen similar on the wings of the Red Bull F1 team which is a big reason they were so quick this year I believe. Birds of a feather...