Is Re-gearing worth it?
Hello all. My name is James. My wife and I just purchased a 2012 Coleman 274BH and we absolutely love it. It comes in at 4580 dry. Our TV is a very low mileage mint condition 2007 F150 with the 4.6...
Forum Discussion
Gearing changes the RPMs from input shaft to output shaft
It is a torque multiplier...increases torque or reduces torque
The 'power' on the input shaft remains the same no matter which diff
gear ratio you have...the MAGIC happens inside the pumpkin
100 ft/lbs at the input shaft
Choose a gear ratio...say 3.73.
Means that 100 ft/lbs is multiplied by 3.73 = 373 ft/lbs on the pumpkin output
shafts (AKA axle shafts). Etc on the simple math for any other gear ratio
Then the red line for the ICE that then must be taken into account. My 7.4L's
red line is 4,800 RPMs, but the dashed red line starts at around 4,200 RPMs
So going to a higher numeric (lower gear ratio) will have my ICE top out sooner
than a small block with a 6,000 red line and hope you folks know what
that means...think tranny
It is really that simple
It is a torque multiplier...increases torque or reduces torque
The 'power' on the input shaft remains the same no matter which diff
gear ratio you have...the MAGIC happens inside the pumpkin
100 ft/lbs at the input shaft
Choose a gear ratio...say 3.73.
Means that 100 ft/lbs is multiplied by 3.73 = 373 ft/lbs on the pumpkin output
shafts (AKA axle shafts). Etc on the simple math for any other gear ratio
Then the red line for the ICE that then must be taken into account. My 7.4L's
red line is 4,800 RPMs, but the dashed red line starts at around 4,200 RPMs
So going to a higher numeric (lower gear ratio) will have my ICE top out sooner
than a small block with a 6,000 red line and hope you folks know what
that means...think tranny
It is really that simple
