In essence, the PowrPro achieves its seemingly magical results by comparing fuel-injector pulse width (the amount of time an injector nozzle is open during each combustion cycle) with rates of engine acceleration, thenóregardless of load, rpm, road speed or other riding conditionsóconstantly adjusts the pulse width as necessary to improve acceleration. The module takes comparison samples and reacts to them up to 80 times a second, so as far as the rider is concerned, those adjustments are instantaneous. Cobra calls it CVT, for Continuously Variable Tuning. But unlike other EFI tuning devices, PowrPro does not retain any fueling information; itís active when the engine is running but has no memory.
For the most part, PowrPro only adjusts the mixture when the engine is accelerating; when cruising or decelerating, the system reverts to the stock mappingówith a couple of exceptions. For one, if the mixture at cruise is lean enough to cause surging, PowrPro senses those fluctuations in rpm and adjusts the mixture to smooth them out. CVT also can help prevent lean-burn afterfiring (commonly but erroneously called backfiring) when the throttle is snapped closed by adding a little shot of fuel at that point.
all this for $500 bucks and what another $500 bucks for exhaust
and you don't want to spend money on a dyno to get the full potential out of your investments. Kinda strange or you already know of the poor outcome
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