Today we had an opportunity install a few goodies on Kevin's 2008 S2000 CR:
- Toda Spec C Camshafts
- Toda Up Rated Valvesprings
- Hondata Flashpro Engine Managment
- Dynotuning
Current Modifications:
- Toda header
- Toda test pipe
- Toda 60mm Dolphin exhaust
- Everything else stock
Here is a baseline off the stock map after the cam install. As you can see the air/fuel ratios started to lean out at 5k rpms into Vtec.
Here is the TQ & HP curve of the same baseline pull, yielding close to factory numbers at 7k rpm's. Even with Vtec at it's standard 6k rpms, the vtec transition was very smooth/linear.
This is a comparison of a completely stock AP2 S2000 vs. Kevin's final Fpro tuned numbers.
The RED curve is what factory S2000 Vtec looks like on a dyno plot....it pretty much feels that way too. Vtec transition with the Toda C's were a lot more linear. The idle quality surprisingly was very good as it started and idled fine on the basemap. The valvetrain was not noticeably loud. Majority of the part throttle map did not need much editing. Most of the editing was fuel related, from 5k rpm's to redline at wide open throttle.
Pros:
- Combo makes great power from 5K+
- Fpro tuning these cams was simple and straight forward
- The tops of the exhaust rockers MUST to be grinded down for the increased lift/duration. Do not install these cams without clearancing the rockers.
Recommendations:
- We could have made more with an aftermarket cold air intake. We recommend Mugen with Mugen bumper or similar cold air with ducting.
- The Toda 60mm Dolphin Tial is one of the smaller exhausts on the market. It had great sound with no cockpit resonation (CR does not have a soft top so we were quite surprised). Power numbers could have been higher with a larger diameter exhaust.
