|MadSci Network: Engineering|
I have searched the archives but still do not understand about gear ratios and torque or what I found didnt seem that to answer my question clearly. Let me elaborate on what im doing... I have a Honda and have reprogrammed the ECU to allow me serial port access to the Sensors. I am logging the Speed Sensor, Rpm sensor, and weight of my vehicle while accelerating with a laptop and calculating HP and Torque according to the above referenced article(the subject line). Here is some info you could use as an example if you like... Front wheel Drive Automatic tranny 2100 lbs (pretty darn close anyway) gear ratios: 1 - 2.600 2 - 1.568 3 - .975 4 - .638 Final - 4.333 Now when I log data and perform calcualtions on it the HP seems very close in second gear but in 3rd gear or after its way off... its says Im generating something in the 1000's of ft/lbs of torque. I know I need to use some correction formulas for the gearing of the transmission but I dont know where to start or even how to apply it to my situation. I hope you understand my problem and can help me and anyone else who is trying to do something similiar.
Re: In reference to 'how to calculate horsepower from acceleration rate and
Try the links in the MadSci Library for more information on Engineering.