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Joe Ricard |
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CUMONIWANNARACEU ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 ![]() |
So my co-worker and I just had a wild idea. how hard would it be or better yet can I unplug the voltage regulator during and autocross run without hurting anything?
Benefits would be the altenator is free-wheeling vs stealing a couple HP. Should help acceleration too???? |
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lapuwali |
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Not another one! ![]() ![]() ![]() ![]() Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 ![]() ![]() |
Hm... If so, then the stock alternator is considerably less efficient than most. OR, a completely different effect: D-Jet has very poor adjustment for battery voltage fluctuations, which have a substantial effect on mixture due to changes in injector opening times. Counter-intuitively, a lower battery voltage means a richer mixture. With no alternator, system voltage will be 12.5v (more or less) rather than 13.5-14v, since that's what the battery is putting out by itself. This is why a bad or marginal voltage regulator can have a significant effect on mixture with D-Jet. Perhaps the "kick in the pants" you're feeling isn't caused by losing the alternator drag, but rather by a richer fuel mixture across the board caused by the lower system voltage. |
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