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Old 12-31-2019, 12:24 AM   #85 (permalink)
Master EcoModder
Join Date: Jan 2012
Location: United States
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spyder2 - '00 Toyota MR2 Spyder
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The fan and bearings and brush eat up maybe what 100 watts at redline? Okay that's kind of significant but if it really bothers you, you can remove the stamped steel fan and wire in a 12V fan. Active rectifier + higher copper fill stator solve most of the alternator efficiency problem.
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