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alternator drag vs engine rpm.
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<blockquote data-quote="bptjr" data-source="post: 371812" data-attributes="member: 15529"><p>thanks to all for the helpful ideas. today I tried changing props again , from solas Saturn 9.25/9/3/ss to solas Saturn 9.25/10/3/ss. it lost 330 rpm and 1 mph. possibly somewhere in between? 9.25/9.5/3/ss ? probably not cost effective. im currently jacked up 5.25 inches above transom with a vance 6 inch jack plate. still peeing water normal. went from 2 trolling mtr. batts. to 1 (this should be ok ,I usually only fish aprox. 4 hours a day) I took cranking batt. out &replaced with smaller one. moved front mounted t/m batt. a little further back. these changes have got me from 13 mph to now at 19mph. im thinking the jack plate might be dragging water,but raising front half then lowering back half might help? so close to 20 I can almost see it!!</p></blockquote><p></p>
[QUOTE="bptjr, post: 371812, member: 15529"] thanks to all for the helpful ideas. today I tried changing props again , from solas Saturn 9.25/9/3/ss to solas Saturn 9.25/10/3/ss. it lost 330 rpm and 1 mph. possibly somewhere in between? 9.25/9.5/3/ss ? probably not cost effective. im currently jacked up 5.25 inches above transom with a vance 6 inch jack plate. still peeing water normal. went from 2 trolling mtr. batts. to 1 (this should be ok ,I usually only fish aprox. 4 hours a day) I took cranking batt. out &replaced with smaller one. moved front mounted t/m batt. a little further back. these changes have got me from 13 mph to now at 19mph. im thinking the jack plate might be dragging water,but raising front half then lowering back half might help? so close to 20 I can almost see it!! [/QUOTE]
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