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VN 1600 DYNO TEST RESULTS
Well we said that we were not interested in performance figures. But after many requests we decided that it was time to authenticate the many claims of 15% plus, performance increases constantly reported by our users.
We decided to dyno a 2005 VN1600 Classic. But to give better proof of the power increase expected, we used a bike that had already been fitted with a free flowing exhaust.
Our reasons for this approach was to high light the difference when the kit is fitted to an improved machine over and above a standard ‘off the floor model’. The free flowing exhaust was an original equipment Kawasaki exhaust system that had been modified as outlined in our exhaust modification section. Owners will know that a free flowing exhaust does make a lot of difference to the stock motor cycle, and here’s the proof of what can be achieved by fitting the induction kit complete with computer.
The 15% increase in power is the basic increase. Further gains can be made by fitting a designed exhaust system. Also, keep in mind that the motor cycle is on a dyno and the ‘ram effect’ that is present on the road is not present while the machine is stationary on a dyno bed. In real terms, the ram effect will further sharply increase the power output as the motor cycle increases speed. Therefore, claims of 20% power increases would quite easily be attainable.
First, the horsepower graph. Power starts to increase earlier and has a smooth climb all the way to 4400RPM where as the original power curve starts later, has about the same curve to 2500RPM but then starts to flatten out. By 3000RPM the original bikes power increase is pretty ordinary and by 3500RPM nothing seems to be happening up till 5000RPM where the power starts to drop off, taking a nose dive after 5500RPM. The Aus Air kit provides a steady power curve from idle right up 4500RPM. Which basically covers all the riding range, from street to highway.
Torque starts early as well. The initial torque rise is approx 60% to around 1600RPM. At this point it is not that far lower then the maximum torque of the original test bike. This is why you now have all that low down grunt and are able to negotiate tight curves in a higher gear. Throttle surge in roundabouts becomes a thing of the past. Torque continues to climb a steady curve to around 2700RPM and then displays a steady downward curve. Where as the original torque curve actually drops and even dips.
The fuel curve. It is very apparent that the Techlusion computer takes over control right from idle speed. The fuel line has been flattened right from the start. Fuel supplied/used is a steady flow from around 2000RPM to over 5000RPM. This is why you enjoy all that extra power and still receive excellent fuel economy. This flattened fuel curve is a good indication of how well The Techlusion computer system manages your fuel injection. Something that Techlusion’s competitors really don’t want you to know.
In conclusion. A large increase in power with a smooth power curve all the way to the top. Just how you need it. Low down torque for low down hauling around town and still covers highway speeds. Just how you need it. And a flat fuel curve indicating the most efficient supply required for your machine.
As mentioned earlier, one has to take into account that a tuned exhaust system will bring increased benefits. And the ram effect as the bike is moving does increase the overall performance by a large amount. One has to keep in mind that some after market filter systems rely mainly on this ram effect to produce performance increases.
The Aus Air induction kit was developed to solve engine and throttle surge, but it turns a good machine into a great machine.
