At this point, i've taken the S out to our local race track and felt a bit of understeer, a lack of dive was occurring and I could not get the car to turn in as quickly at speed. I did research and wanted to keep the car as stock looking for now as I could and got a CR lip, the change was noticeable. And dropped a half second around the course consistently to be around 1:37.5
The 250 Treadwear tires that came with the car were decent. However, we all know tires make the car run well, a set of 17x9 Enkei RPF1s and 255/40/17 Square setup with RE11As were in order. This setup dropped my lap times a full second consistently to 1:36-1:36.5
I felt some oversteer with the new setup as I was getting a little more balsy and taking turns with more speed. I did more research on the aero for the car and bought a small diffuser, not much quicker round, but it did keep the rear end from stepping out so much.
Did a little more experimenting with the aero setup and bought a front splitter, it did help dive the car into corners, however, at speed I found it was just short of the optimal length for the S2000 and was generating drag, slowing me down on the straights.
At this point, I finally invested in some power adders, an intake, exhaust, test pipe were added. I had it tuned and dyno'd at 210 WHP at 5500FT in elevation and 136ftlbs. VTEC was lowered to 4500RPM and i saw my lap times drop by 2 full seconds to 1:34. I also felt brake fade, and invested in some slotted rotors and RBF600 which resulted in a half second off, braking later into corners. 1:33.5.
I did some MORE experimenting with the aero and ditched the drag producing splitter and bought a CR wing to complement the front CR lip and rear diffuser. The wing bumped my speed on the last corner from 66MPH to 73MPH, resulting in another second lost. 1:32, this setup ran me well, and I decided it might be time for an alignment.
First go around was 2 degrees camber up front, 2.5 rear, zero toe; another second lost; 1:31.
Then I really started to get crazy, the tail end would push ad I decided to get more rear downforce to stick it in the corners at higher speed. I invested in a Spoon rep Diffuser, this alone was an amazing upgrade. I dropped a full second yet again, 1:30 dead.
Until I got the bright idea to get rid of the 17x9 wheels for 18x8.5 on a 255, my lap times increased a second and a half, and changed my alignment.
The ASM replica bumper, with active brake ducts. Enkei TS9 17x9 Wheels, RE71R tires. Switched up the power adders, ditched the duel exhaust for a single, dropping 30lbs, also going from a 70mm to a 73mm, its louder, but more powerful. Ditched the old CAI, for a K&N FIPK (Known to make power on the S), bought a cooling plate that direct feeds air into the intake via a custom ram air setup. And finally added a BC 330mm BBK.
The result, 1:27 consistant lap times, which is the record at our local track for non-racecars (IE; trailered cars/non street legal.)