How much HP does an average starter put out?

I know you guys could answer this question for me.

Aproximately, how much HP/TQ does an average starter produce?

 

Anyone?

Anyone?

Bueller?

Bueller?

 

0.8-1.2 as i recall.

 

Enough to move the car a ways. How much torque does it take to overcome the typical rolling resistance?

 

I don't know but it was enough to pull my jeep out of the big puddle that killed the ignition.

 

IRRC.....

HP= (Volts x Amps)/746.

I'm sure the amps (guess #1; 150??) required depend on the temp of the motor/oil, and I would derate the volts to 10 or less (guess #2) because of drop during high load. Gives you a number around 2 HP if the amps guess is close; otherwise adjust accordingly.

And

HP= (Torque X RPM)/63000. So Torque = (HP x 63000)/RPM.

........Torque is in inch-pounds for these equations, and RPM is the starter RPM. Hafta (guess #3) that one, too.


But I ain't no 'lectrical injuneer. Just a simple old gear head trying to make his way in an electronic world.

 

I had worked for a well known aftermarket motorcycle starter company a while back. We actually modified Nippondenso forklift truck starters for Harley applications. Our starters were rated by kilowatts.We offered 1.4 to 2.0kw., which translates to approx. 1.3-1.9 horsepower. Frank