I liked my 300D's driving habits enorgh that I wanted to combine it with my other passion... steam engines. I decided to use one of my 300's for the donor vehicle. As anyone familar with piston steam knows they only turnover at 1000rpm when redlined. But develop 1000-2000 foot pounds of torque at stall speed. The torque numbers are for 10hp and 20hp ,respectively Any rate,if someone knows how much torque the transmission can handle....that gives me an overdrive ratio to divide the torque down to. Stanley,Doble,and White in antique car museums ran direct drive at 1.25 street and .75 to1:1 racecar. The torque numbers are the reason , 7-15 hp Stanleys were compepteing with 40hp Mercedes gas and 60hp Napiers in hillclimbs and flattracks at the turn of the century. A 30 hp Stanley hit 150 mph at Osmond speed trials (later moved to Dayton) in 1906.
With luck, the transmision can handle enorgh torque ... that I can use double 10hp Stanleys on a mercedes differentail reverse coupled to the transmission for 1:1 overall ratio. If not ...then the same arrangement less transmission to get the 1:1 overall ratio.