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Motorcycle Tuning

Air/Fuel Ratio

All motorcycles have an optimum air/fuel ratio for producing maximum power and torque. Factors such as emissions regulations, after market exhausts and air filters can alter your motorcycles fuel/air ratio resulting in loss of power and poor or snatchy throttle response.

Click the Air/Fuel graph for a closer look.

Air/Fuel Ratio Graph

Dynojet 250i Rolling Road

Our dynojet 250i rolling road can measure power output up to 750bhp and true speeds up to 200 mph enabling us to record your bikes performance through the entire rev range in all gears at the same time monitoring the air/fuel ratio. The dyno enables us to repeatedly test any adjustments we make to your bikes fuelling using a power commander for fuel injected bikes or a jet kit for carburetted motorcycles.

Dynojet 250i

Power Commander Mapping

Designing a custom map is a process where we run your motorcycle at each throttle position from 2% through to 100% to record the air/fuel ratio at each position. Using the power commander we can then change the fuel input throughout the rev range for each throttle position to give your bike the optimum fuel/air mix for any given throttle opening and engine rpm which in turn should provide the maximum power and torque.

Click the tuning screen to see the tuning stages

Example Mapping Process

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