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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">I have a silly question, what voltage do yo=
u consider overcharging? My current one charges at over 14v (maybe 14.=
5v) and wondered if I should be worried. I=E2=80=99ve done total loss f=
or years and have just started using an alternator again.<div><br id=3D"line=
BreakAtBeginningOfSignature"><div dir=3D"ltr">Chuck</div><div dir=3D"ltr"><b=
r><blockquote type=3D"cite">On May 19, 2025, at 11:29=E2=80=AFAM, Tony Sheac=
h via Fot <fot@autox.team.net> wrote:<br><br></blockquote></div><block=
quote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
Hi all
<div><br>
</div>
<div>My experience is that if you are going to use one of these Nippon Denso=
derived alternators, you need to go for the OE part.</div>
<div><br>
</div>
<div>The various copies all have short lives, mainly because the diode set l=
acks up and usually starts overcharging the battery and causing the output v=
oltage to vary considerably, usually upwards. I=E2=80=99ve had this happen a=
nd it=E2=80=99s not pleasant when a dry cell
battery gets fat enough to pop.</div>
<div><br>
</div>
<div>You can buy diode sets for the original Denso units and these are a qui=
ck change =E2=80=98in the field=E2=80=99 so my view is to buy a decent one a=
nd a couple of spare diode packs (the assembly with the spade terminals on t=
he end) and replace as necessary.</div>
<div><br>
</div>
<div>I have one 80amp unit that=E2=80=99s done 10 years and is going back in=
after the current refit. I appreciate that most don=E2=80=99t need this sor=
t of output, but it=E2=80=99s usually wet and dark here so it=E2=80=99s ever=
ything on. The smaller 45/50 amp units are probably longer lived.</div>
<div><br>
</div>
<div>Best wishes to all</div>
<div><br>
</div>
<div>Tony </div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div dir=3D"ltr">Sent from my iPhone</div>
<div dir=3D"ltr"><br>
On 19 May 2025, at 16:12, Michael Moore via Fot <fot@autox.team.net> w=
rote:<br>
<br>
</div>
<div dir=3D"ltr">=EF=BB=BF
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Do you have the part=
number for the powermaster?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p> </o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"PPC Handwriting"=
;;color:#006600">Have a Good Day</span><span style=3D"font-size:11.0pt;font-=
family:"PPC Handwriting";color:#006600"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"PPC Handwriting"=
;;color:#006600">Mike<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri",sans-s=
erif;color:#006600"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">Michael T. Moore, CPA<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">3255 West 26<sup>th</su=
p> Street</span><span style=3D"font-size:11.0pt;color:#006600"><o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">Erie, PA 16506<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600"><o:p> </o:p></span=
></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">Phone: 814-616-86=
52 ext 100<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">Fax: &=
nbsp; 888-865-5279<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600">Email:  =
; <a href=3D"mailto:mmoore@mtmcpafirm.com";>
<span style=3D"color:#0563C1">mmoore@mtmcpafirm.com</span></a><o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:#006600"><o:p> </o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-siz=
e:9.0pt;font-family:"Times New Roman",serif;color:black">This elec=
tronic mail message contains confidential and legally privileged information=
intended only for the use of the recipient.
If the reader of this message is not the intended recipient, the reader is h=
ereby notified that any dissemination, distribution, copying or other use of=
this message is strictly prohibited and is hereby instructed to notify the s=
ender immediately by return
email and destroy this copy of this message.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Cal=
ibri",sans-serif;color:#006600"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p> </o:p></s=
pan></p>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0=
in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:"=
Calibri",sans-serif">From:</span></b><span style=3D"font-size:11.0pt;fo=
nt-family:"Calibri",sans-serif"> Fot <fot-bounces@autox.team.ne=
t>
<b>On Behalf Of </b>JS Performance Motoring, LLC via Fot<br>
<b>Sent:</b> Monday, May 19, 2025 10:21 AM<br>
<b>To:</b> Mike Harmuth <ofracer@gmail.com><br>
<b>Cc:</b> FoTTriumph <fot@autox.team.net><br>
<b>Subject:</b> Re: [Fot] What alternators are you using on a Spitfire?<o:p>=
</o:p></span></p>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class=3D"MsoNormal">Mike,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"> The mini-denso style alter=
nators work great. There is a difference in quality between the cheape=
st, bottom of the barrel options, and the more expensive options.  =
;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">When my $10 Amazon special failed at VIR last year (h=
ad been in service since 2020), the backup unit I borrowed from Henry Frye l=
ooked identical, but weighed substantially more! There's clearly a dif=
ference. <o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Currently, I'm running a powermaster brand and it see=
ms to be well made.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I also like to run a larger pulley to slow things dow=
n. Here in the states, you can get a 4" pulley sold as Powermaster p/n=
182. This is a direct swap onto the mini denso.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"></p>
<div><image001.jpg></div>
<o:p></o:p>
<p></p>
</div>
<p class=3D"MsoNormal"></p>
<div><image002.jpg></div>
<o:p></o:p>
<p></p>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">We were also watching the J500 at my house, did you c=
atch the medium bore race, where under full course caution, the commentator s=
houted "Slow down, Henry!". We about fell out of our chairs laughing!<=
o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Jason Sukey<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">JS Performance Motoring, LLC<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">440.984.7720<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"mailto:jason@jsperformancemotoring.com"; ta=
rget=3D"_blank">jason@jsperformancemotoring.com</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"http://www.jspmparts.com/"; originalsrc=3D"=
http://www.jspmparts.com/"; target=3D"_blank">www.jspmparts.com</a><o:p></o:p=
></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://www.facebook.com/JSPerformanceMoto=
ring/" originalsrc=3D"https://www.facebook.com/JSPerformanceMotoring/"; targe=
t=3D"_blank">https://www.facebook.com/JSPerformanceMotoring/</a><o:p></o:p><=
/p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class=3D"MsoNormal">On Mon, May 19, 2025 at 9:01<span style=3D"font-famil=
y:"Arial",sans-serif">=E2=80=AF</span>AM Mike Harmuth via Fot <=
<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> wrote:<o:p>=
</o:p></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0in=
0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class=3D"MsoNormal">I'm getting tired of replacing the stock type alterna=
tors. They used to last a few seasons but now it seems like a few weekends i=
s the norm.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<p class=3D"MsoNormal"> Like oil, I know there will be many different o=
pinions, including running without one. That being said, any suggestions/par=
t numbers/suppliers of a system that works for you?<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">BTW, I enjoyed watching the Jeff 500 last weekend on t=
he VRG live stream (currently available on YouTube). Nice job against t=
he 911 Mr. Frye.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">thanks<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">mike h<o:p></o:p></p>
</div>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">______________________=
_________________________<br>
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<o:p></o:p></p>
</blockquote>
</div>
</div>
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