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pfos1 said:

I Was thinking of manually lowering lowering the DNK red line to maybe 7200 just to be a little extra safe but who knows what this engine can take I just don’t wanna push it too hard it’s not like an extra couple hundred Revs are really going to make much of a difference in daily riding etc. I do wonder if Max horsepower will be slightly increased at 7400

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pfos1 said:

Anybody with the DNK tune have a comment in raising rev limit to 7400? I have DNK but still breaking the bike in and not exceeding 6000 (I am really trying hard!!!) Do folks really think 7400 is bad for the non TFC bike? Why would DNK raise it to 7400 if it was going to kill bikes that would be super bad for business!!!

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pfos1 said:

Ir

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pfos1 said:

Never mind. There is no fuel shutoff with the Penner tune until 7000. So the HP drop is natural from the engine.

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Dr.D said:

The operator of the dyno shuts down the throttle at a determined rpm, that’s why the power drops off sharply. I’ve watched them tuning my bikes.

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pfos1 said:

So would it keep rising until whet RPM? When would the engine naturally stop making more power and flatten out?

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dougl said:

It would flatten, which it appears to be doing on the chart.

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Penner said:

The rev limiter usually has two limits. First is the "soft cut" where power is reduced. The other is the "hard cut" where igntion and injection are completly shut off. I think that Alain found the hard cuts and that is what you see in Tune-ECU and my dyno graphs.
But as there is also the speed limiter coming in at this area, I am not 100% sure .

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