Quote:
Originally Posted by CHRISCAM
I'm having a difficult time understanding how a given transmission and rear end assembly doesn't use the same amount of torque/ hp to turn, regardless of what engine is mounted to the front of the bellhousing.
The shop installs an electric test motor to determine the amount of torque/ hp required to turn the existing driveline at a given rpm. It's determined by this test procedure that 50 hp/ lb. ft of torque are required to turn the assembly at 3000 rpm.
Someone explain in the flaw in my logic. I'm not being sarcastic here, by the way.
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Yes you are correct, having a 1000hp engine on the front of the assembly or a 50hp electric motor it would still require the
same power to turn the drivetrain at a given rpm with "no" or the same load at the wheels (at the same temperatures-friction).
But it isn't turning only that we are talking about. It is transmitting differing loads that also change direction and speed. More load, more friction. Did you not read my post?