[subcooledheatpump]

Heads up on the civic gear ratio chart, you multiply the gear ratio by the final drive

Most cars first gear are something like 11:1 overall ratio

The van that I converted had original first gear of 3.06:1 and final drive 3.73:1.

So 3.06*3.73= 11.4

Torque from engine, 340 ft lbs* 11.4 =3880 ft lbs at the wheels.

old 90's civics got about 100 ft lbs at the engine, so just an estimate 100*11=1100 ft lbs at the wheels