Here is a preliminary test of my new cam vs the HC III tested above. This cam has 20� less duration than the Hotcam. There are substantial design differences between these cams. You will notice the power flattening off above 6800 RPM on my cam.... This was due to valve float. We have since addressed the valvesprings with a much better design. I am also implementing some timing changes on this cam, such as advancing the cam intake centerline and reducing the lobe separation angle. Add those changes along with a more aggressive lobe and you are gonna see a big improvement across the entire range(especially at the bottom). The dyno chart doesn't tell the entire story here. With the lower duration numbers there is a HUGE improvement in response. Even with these less than expected results, when the cam is tested for HP vs time, my cam was 14hp up @ 1.5 seconds into the pull. I should be seeing some very nice improvements with the next grind.
Ideally I want to make way more power than the XT cam and kill the rev limiter. I already have valves and springs that are more reliable @9,000 RPM than the stockers are @ 7200. And of course the reliability of the rest of this engine is beyond reproach.