For these tests we were using a SE Heavy Breather with a larger custom element. We have also been testing FM prototype units with assorted size elements.

Here is the latest on our H-D M8 development after a cylinder head swap. This is our 120" big bore kit with Wood WM8-999 cam, cylinder heads ported by Gary Williams, SE 64mm TB, Jackpot prototype 2/1, AIM VPC clutch, tuned with Dynojet Power Vision. There is definitely more work to be done; the clutch needs to be attended to, there's several more cams to test, and we're building a new 2/1 header. We will be testing more parts end of the week.

https://s21.postimg.org/sprr207pj/M8_120.jpg

Seeing that chart just made my heart stop, for a brief moment. Impressive work and research. Looking into getting an M8 next spring time frame, you guys are definitely not going to help me keep my wallet closed.

Sweet job Jamie ����

Nice power increase, at what point do we think the drive belt will be the weak link?

Unless you're slamming it with 2 up I don't think there's enough traction available to break it...adjusted properly. Smoke the tire first

What about heat dissipation at those significantly higher power levels. Or it is meant for a very short duration rather than something like hi speed cruising that is so common out west.

Subscribed! I am very interested in this development.

Idea, how do you think the 120 kit with ported heads would react with the M8-408 cam? I'm looking for a strong torque curve more than power.

Thanks and keep up the innovation!

2017 CVO Limted Stage IV Fuelmoto Jacpot headpipe 128/128
 

Jamie did a terrific job on my 2017 CVO Limited Stage IV with SE Street Cannons.

So, with the M8 107 base motor, given unlimited options, 150^2 is achievable in a daily rider?