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KonaGuy

  • Karma: +0/-0
Is alt charging affected with crank underdrive pulley?
« on: June 07, 2010, 11:11:10 PM »
I am gunna purchase a billet crankshaft pulley and was thinking of going underdrive, Im not sure if this will affect my charging from altenator?
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crewchief22

  • Karma: +66/-0
Re: Is alt charging affected with crank underdrive pulley?
« Reply #1 on: June 08, 2010, 05:48:38 AM »
In an automotive application I would say yes, but in a jet boat where you spend most time above 3000 rpm you shouldn't have a problem.
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  • Boat #1: '77 Hondo Pantera GT Jet
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"Racing is life!  Anything that happens before or after, is just waiting"    Steve McQueen

The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

walshmotorsports

  • Karma: +0/-0
Re: Is alt charging affected with crank underdrive pulley?
« Reply #2 on: June 10, 2010, 11:00:53 AM »
  I use one myself, works fine. :thumbup:
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IRRebel

  • Karma: +16/-0
Re: Is alt charging affected with crank underdrive pulley?
« Reply #3 on: June 10, 2010, 11:30:20 AM »
Quote from: walshmotorsports on June 10, 2010, 11:00:53 AM
  I use one myself, works fine. :thumbup:

X2!

You also have to consider that we have little demand on the alternator. No lights, brake/turnsignals, etc. Kickass stereo in some cases, but other than the ignition system and guages, no draw. Consider the rpms we run at, yeah, reduce it to the rediculous.....

Ray
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"Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways totally worn out shouting 'Holy Shit what a ride!"---Crewcheif22 AKA Keith
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