BurnoutZ Posted April 27, 2008 Share Posted April 27, 2008 Has anyone on here tried using one as a replacement to the stock z alternator? Is it necessary? How many amps are suggested? Quote Link to comment Share on other sites More sharing options...
zmaster Posted April 27, 2008 Share Posted April 27, 2008 Doesn't the stock 280z use I think off hand a 45 amp alternator? at least thats what I heard, I want to do a GM alternator swap anyway. Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted April 27, 2008 Author Share Posted April 27, 2008 These bosch alternators are expensive... The most powerful line puts out 235 amps at $500.00. But i dont know if 235 amps is really necessary for a z. I am planning on running a sound system in the future but i dont know if it will need that much punch. I was thinking about using bose speakers w/ 2 jl audio 10w7. Also I was planning on adding alot of electronics to my z... power locks... trunk release... power windows... keyless entry... electric fan... in dash flip dvd screen/player. I think with all these electronics im def. gonna need a good sized alternator. Heres a link to the highest output bosch alternator: http://store.summitracing.com/partdetail.asp?autofilter=1&part=BCH%2DAL7537HO&N=700+1007+4294771269+115&autoview=sku Quote Link to comment Share on other sites More sharing options...
fastzcars Posted April 27, 2008 Share Posted April 27, 2008 That's way over kill! The most you'll probably need would be a 140 amp version. Quote Link to comment Share on other sites More sharing options...
BurnoutZ Posted April 27, 2008 Author Share Posted April 27, 2008 So a 140 amp alternator should do fine with all the electronics i described? I am trying to make a reliable descision... Quote Link to comment Share on other sites More sharing options...
JeffGarcia77 Posted April 27, 2008 Share Posted April 27, 2008 Z Man of Washington (Oliver Naugle) sells 105 and 120 amp alternators which fit the Z car mounting bracket perfectly. He provides instructions for re-wiring, because the alts he sells have an internal regulator, instead of the big, external reg. found on the pre-78 Zs. I had one on my 280ZX, and it provided plenty of juice for the lights, wipers, blower motor, A/C clutch, radio, brake lights, all at the same time. You can go to zspecialties.com Jeff Quote Link to comment Share on other sites More sharing options...
Daeron Posted April 28, 2008 Share Posted April 28, 2008 step one, go to http://www.rockautoparts.com or http://www.thepartsbin.com and do some research. Look up nissans and suabarus of recent enough model years to be nice, but still available in JYs. I found that late 80s maximas came with 90 amp alternators, and once I swapped the pulley it was essentially a straight bolt in. (to tell the WHOLE story, I realized that the 60 amp internally regulated alt on my old subaru was the EXACT SAME CASING as the stock alt from my 75 280Z, and wound up installing a 90 amp maxima alt in the soobie.. i've bolted it into the Z-car but never installed a belt or run the engine with it. To ACTUALLY install it into a running Z MAY take minor minor bracket modification, but nothing serious.) Anyhow, back to my point: find a modern Inifinit, or Pathfinder, with a 110 amp alt in it. Pull it. $40 from a greedy junkyard. When it goes bad, rebuild it; chances are your rebuild will be at LEAST as high-quality as the "sweat shop" rebuilt alts that sell for upwards of $100. I don't know how strong an alternator you can find this way; 90 is ample for me, and its super easy to find an 89 maxima in these parts. Installing an internally regulated alternator in place of your externally regulated alternator is a conversion that has been done MANY times, and written up almost as many. HTH Quote Link to comment Share on other sites More sharing options...
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