it does not account for the elivation but i do have a caculater app on my phone that will.i am hoping for at least 50 at the rear wheels.elevation alone will drop me from 109 stock to about 85 at the flywheel then all the losses from tranny rear end ext....

87 dodge power ram 50,35" tires,5 1/2" total lift,4.6 gears,lockers front and rear,Rancho RS5000's,custom front bumper,custom rock sliders,cct extended diff breathers,75 amp alt(40 amp stock),thorely header,K&N,wheeled hard...