Prototype Performance cams for the Rocket.

mando said:

you can pm me when you are ready to sell the cams, it would be a great start, cams and software upgrade and I believe 200hp should be there already lol

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RICHARD ALBANS said:

Ok Dyno results are in. So we set the cams at reasonable lobe centres. 108/108. The cams were base circle ground so we were limited to 0.7mm more lift and more duration on both cams, so a pretty mild increase ( a stage 1 grind you might say). We know my exhaust mods did nothing for power, just made a nicer noise. We know the throttle valves shut down to about 60% at the top end so this will limit the power. Even so we made some great gains. The first graph shows The gains std bike to my bike. The second shows what happens when you remove the stock intake system, in other words if you were stupid enough to put a set of 3 K & N filters you would lose a ton of midrange power. Just to clarify the cams gave us around 30 ft.lb of torque across the board and 22 whp again across the board. NICE!

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dougl said:

Throttle tables easily set unrestricted with Tuneecu.

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pfos1 said:

Yeah I am confused. Of course you are tuning if working on supercharger what do you mean shut down to 60%? You mean to take that into consideration when comparing your dyno results to the stock numbers/dyno runs because your cam is not responsible for all the increase and some is due to opening them up in the tune? Or take that into consideration with cam change only (ie your cam is being limited by the stock high end power roll off for speed control?) Please clarify what you meant in your post.

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dougl said:

Dyno numbers are usually at WOT. If the electronic throttle (throttle plate) is at 60% when the throttle position is 100%, then power will be limited. Like closing the secondary throttle plates on the older Rockets. The Penner and DNK tunes both set the ETV to 100% at 100% TP. Look at Estoma’s ETV table in the free unrestricted tune thread.

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RICHARD ALBANS said:

Ok Dyno results are in. So we set the cams at reasonable lobe centres. 108/108. The cams were base circle ground so we were limited to 0.7mm more lift and more duration on both cams, so a pretty mild increase ( a stage 1 grind you might say). We know my exhaust mods did nothing for power, just made a nicer noise. We know the throttle valves shut down to about 60% at the top end so this will limit the power. Even so we made some great gains. The first graph shows The gains std bike to my bike. The second shows what happens when you remove the stock intake system, in other words if you were stupid enough to put a set of 3 K & N filters you would lose a ton of midrange power. Just to clarify the cams gave us around 30 ft.lb of torque across the board and 22 whp again across the board. NICE!

Click to expand...