Kevin Shasteen Posted December 11, 2003 Share Posted December 11, 2003 Found a good site w/some good info on wiring upgraded alternators in cars they didnt initially come in: specifically the one wire -vs- three wire system along w/its pro's & con's. http://www.hotrodders.com/kb/electrical/articles.html The articles that inspired this posting are found on that site and they are: http://www.madelectrical.com/electricaltech/brighter-headlights.shtml http://www.madelectrical.com/electricaltech/remotevoltagesensing.shtml http://www.madelectrical.com/electricaltech/onewire-threewire.shtml Those of you using a one wire set up to your high amp alt on the car's original old wiring system may be surprised to find that your wiring system isnt getting all the juice you think it is: anyway, read for yourselves and you be the judge. I found the site very informative. Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted December 11, 2003 Share Posted December 11, 2003 I second the opinion on those articles from MAD. A must read for anyone hacking into their electrical system. The day I read those I immediately went out and rewired my charging system! Quote Link to comment Share on other sites More sharing options...
blueovalz Posted December 11, 2003 Share Posted December 11, 2003 Nice info. The guy who set up my one-wire system told me I had to have some kind of small resistance (idiot light) in order for the system to operate correctly. So installed a small filament bulb as suggested. When I reach about 15MPH (driven off the propeller shaft), the light goes out, and the voltmeter jumps up to about 14vdc, and stays there, regardless of the load (90 amp) until I slow back down again. Surprising observation about having an alternator in the car with you. It starts a very pronounced whinning (almost like a jet turbine) at the point in which it starts charging, other wise, very quiet. Things you don't realize when they are under the hood. Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted December 12, 2003 Share Posted December 12, 2003 humm. I must have missed something but in the JTR book I thought they mentioned that the 1 wire alt will not start charging till 2k or 2500 rpms. I have the 1 wire on mine with no problems..... Mabey I missed something.... Dave Quote Link to comment Share on other sites More sharing options...
blueovalz Posted December 12, 2003 Share Posted December 12, 2003 My understanding is that the higher the amp rating the higher the "turn-on" RPM. My driveshaft driven alternator pulleys give it a 2:1 ratio so that the alternator spins at twice the speed of the driveshaft, which is a bit high in my opinion, especially with the new 4:11 gears in the dif. Quote Link to comment Share on other sites More sharing options...
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