Racelogic PerformanceBox Manual

Also see for PerformanceBox: Quick start guide

Contents

Racelogic PerformanceBox Manual Manual pdf 27 page image

Racelogic Ltd Power Mode02/05/2014 Page 27Power ModeYour car’s power output can be measured using the Power Mode. There are two parts to thisprocess: the acceleration run, which gives you the power at the wheels minus the losses causedby tyre and air resistance. The second part of the test measures these losses and also estimatesgearbox losses. The Power Mode is also an additional tool for car tuning, where access to achassis dynamometer is not possible.Note that this is an estimation of power, and as such when carried out correctly will probably bewithin 5% of the true figure. It is very important that the test is carried out on a completely flat roadand the correct procedure is followed very carefully. Power output can only be measured on a carwith a standard manual gearbox.Power TestingPlease note that due to the nature of this test and the amount of spacerequired, it is strongly recommended that such measurements areconducted on private roads.Setting the Vehicle WeightIn order for accurate measurements to be made, the vehicle weight must first be entered via thePower Menu:POWER MENUUNITSSET WEIGHTSETUPEXITThe weight you enter must be as accurate as possible - for best results have the car weighed priorto carrying out any tests as even a small inaccuracy will not give correct power figures, a 10% errorin weight will give a 10% error in power. Use the ▲▼ buttons to increase or decrease the weightvalue (Holding down the buttons increments/ decrements faster). Altering the units from the menuwill change the weight values from lbs to kg, and the power values from bhp to kw.Power and losses runs should be carried out on level ground and always in the same direction,and it is recommended that power runs are conducted with the car in second gear.