Forum Discussion
ShinerBock
Mar 05, 2019Explorer
RCMAN46 wrote:
Boy there are many on this Forum that do not understand Horsepower and Torque.
At a given engine RPM and throttle setting gears and transmissions can not and do not change the horsepower that is delivered to the rear wheels.
Gears and transmissions can only change the torque delivered to the rear wheels which also changes the rear wheel rpm for a given engine rpm.
If anything the gears and transmission will lower the horsepower delivered to the rear wheels due to losses in the gears and transmission.
A torque converter can alter the amount of the engines horsepower going to the trans and rear wheels. When it is unlocked it is passing through less power that is being made by the engine. How mush less depends on its efficiency. When it is locked, it is passing all power made by the engine.
One of my tunes locks up my TC in 4th at 45 mph when not towing. It was very pronounced with my old TC due to how inefficient it was and almost felt like it was shifting into another gear. All you see is the engine revving about 1,800 in 4th, and then all of the sudden it would lock and you would feel a rush of power with the rpms dropping to around 1,400 in 4th. With my new tighter TC, you hardly feel it lock because you get almost the same power with it unlocked.
These articles better explains what I am talking about.
Put More Power to the Ground with the Right Torque Converter
Transferring The Power Back, Understanding Torque Converters
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