Some interesting facts. Chris P....still looking for a bigger alternator! ----- Original Message ----- From: <dherv10@xxxx> To: <dmcnews@xxxxxxxxxxxxxxx> Sent: Monday, February 12, 2001 6:30 PM Subject: [DML] Re: Alternator Question! > Scott, Your correct that the car will only take what it needs as long > as the source can deliver. My builder told me that he test at 2000 ( > Factory 3000 ) rpm, 100amp fixed load, ( factory 80 amp load )and he > cranckes up a variable load on top of the fixed load till the > alternator reaches 13 volts. Lower RPM and all comes down in > proporation. That's also why we use a smaller pully for a faster spin > at lower rpm. Original used a small also. At that point 150 amps +/-. > I can't tell you exact, but here is what my builder told me this > morning. > Current draw ( average ): 12vdc > AC Compressor--16 to 18 amps > Wire resistance for compressor add about 20%+ 3.5 amps > De Lorean Cooling Fans= 28 to 30amps > Head lamps depending on dim or bright=10-15 amps > Battery to charge and to keep hot=20-30amps,you can charge as low 3v. > Other,Resistance in wire all over + radio,dome,door=5amps. > On the low side the total is 82.5 amps > On the high side the total is 101.5 > As we all know most all these thing may not be on at the same time. I > have not tested all this but it was just a quik summation. Now factor > in heat and how much does it drop. Watch how your gauge,up and down, > hot weather to cold weather, idle to running, loaded to unloaded and > cold alt in morn to hot after running a while. The idea as I see it > is to keep the needle above 13 volts as much as you can in the worst > case. I think DMCJOE said something about 11 or 12 volts a while back > before you start running other trouble. I'll let him expound on that > if he wants to. But:Texas heat, 95 Degree out side, crusing stop and > go at low RPM at night with lights on and air on. That's about the > worst. > If you look at the shop manual, I don't think there is any way to > meet the spec. Oh. and they are talking at 68 degree. > John > > > > --- In dmcnews@xxxx, "Scott Mueller" <scott.a.mueller@xxxx> wrote: > > If I remember correctly, the alternator will only produce the > amount of > > current that the car requires. The rating 105 Amp or 150 Amp is > the maximum > > rated current for the alternator. I am curious though, how much > current can > > the wiring handle between the alternator and the battery? > > > > Scott Mueller > > DOA/DMCNEWS > > 002981 > > ----- Original Message ----- > > From: Stian Birkeland > > Subject: [DML] Alternator Question! > > > > > > > > > > I have one question regarding the "new" alternators. I see that > there are > > > various suggestions for replacement alternators... > > > > > > DeLorean Midstates offers a 105 Amp alternator as do Grady and > DMC Joe. > > > Mr. Hervey now offers one with even a higher output (150 I > believe it was) > > > > > > My question is: > > > Is it advisable to replace the original alternator with one with > a much > > > higher output than the original one? > > > > > > Is there a "limit" as to how high output should be in the > DeLorean? > > > What difference is there between the 105 and 150? I have 90amp > with > > FanZilla > > > and I "feel" its enough power for all the systems in the car. > > > > > > Can a very high alternator output damage anything in the > electrical > > system? > > > What about the battery's condition? > > > > > > Just curious... > > > > > > Best wishes > > > Stian Birkeland > > > Norway > > > > > > VIN # 06759 (w/original 90amp Motorola) > > > > Before posting messages or replies, see the posting policy rules at: > www.dmcnews.com/Admin/rules.html > > To address comments privately to the moderating team, please address: > moderator@xxxx >