View Single Post
  #18 (permalink)  
Old 09-18-2010, 08:26 AM
patrickt's Avatar
patrickt patrickt is offline
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
Not Ranked     
Default

Quote:
Originally Posted by Excaliber View Post
Now THATS what I'm talking about! That starter gonna do what it has to do, cable be damed, melt that sucker if it has too.
No, your DC starter motor doesn't "take what it wants," it uses what it's given. You can actually vary the speed of a DC motor by just using a large enough potentiometer. In that case, the motor doesn't say "Oh, I see you've turned up the potentiometer but I'm still going to rip more current through it and spin at top speed anyway." (And the torque of a DC motor is also proportional to the current that it's drawing.)
Reply With Quote