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Old 07-25-2009, 11:20 AM   #206 (permalink)
gargoyle865
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Join Date: Jun 2008
Location: Trenton, NJ
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Scion - '05 Scion Xa
90 day: 35.97 mpg (US)

Sisyphus' Bolder - '81 Jeep CJ5 base

Truck - '99 Chevy Silverado 1500 4x4

Harley - '00 Harley-Davidson Sportster XLH883
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on-demand charging

Quote:
Originally Posted by Xringer View Post
So, you are going to use idle mode sensor to start charging..

Wouldn't that load on the Alt cause it to load up the ICE,
increasing the TPS to maintain idle RPMs??
And use more fuel than a normal idle?
I was thinking about that too. Maybe I'll wire the "clutch disengaged when starting" idiot switch in series with the TPS signal to the relay. That way it would only charge when the throttle's at idle AND the clutch is engaged, aka fuel cutoff mode (or when idling in neutral, but one thing at a time). But I think that the reduced drag on the engine when the alt is freewheeling would more than offset the extra drain at idle . I suppose the first step is just to disconnect the alt winding wire and see how many dummy lights come on, and what happens to the RPMs.

Regardless, I'll stop here before I get in trouble for hijacking the thread...

Last edited by gargoyle865; 07-25-2009 at 11:37 AM..
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