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Many thanks to all of you for sharing your collective wisdom. The expertise=
available through all of you here on the List, and the willingness to shar=
e it, continues to amaze.=20
I did find what might be a useful under drive pulley.=20
https://www.npdlink.com/store/products/mustang_pulley_generator_stamped_fin=
s-100767-431.html=20
But at $280 it does not make sense to spend that amount of money together w=
ith the $110 for the remanufactured generator, I would have $390 invested i=
n a solution that is inferior to an generator look-alike alternator for abo=
ut the same amount of money. Plus something tells me that the pulley may on=
ly be 3.75 inches in diameter, whick would onlu give me about a 12 percent =
speed reduction. That is based on what I see for $900 on ebay:=20
http://www.ebay.com/itm/Ford-Mustang-AC-Cobra-OE-Restored-Fomoco-HIPO-Gener=
ator-Dynamo-/350893612053?hash=3Ditem51b2e39c15&vxp=3Dmtr=20
Cost aside, I had not factored in the possibility my 347 may need a pusher =
fan for cooling in very hot, slow speed weather/driving conditions. So far =
in 80 degree weather last year, the griffin radiator, 6 blade fan and reduc=
ed diameter pulley keep things nicely in the desired 195-205 degree engine =
temp range. Have not had a chance to see how things go under more stressful=
conditions. Thanks Mark L for mentioning a cooling aspect I had not though=
t of. Hate to have a generator setup that will not drive a pusher fan near =
idle if it turns out I need one.=20
So for the time being I will just stick with the new generator and stock pu=
lley. We will see it it lasts through its one year replacement warranty.!=
=20
I learned a lot through asking the questions, thanks again everyone for sha=
ring your knowledge.=20
Best regards, Gene=20
----- Original Message -----
From: "Mark Rense" <mark44124@gmail.com>=20
To: genepadgett@comcast.net=20
Cc: "tigers" <tigers@autox.team.net>=20
Sent: Monday, April 6, 2015 5:35:02 PM=20
Subject: RE: [Tigers] high speed generator pulley=20
I don=E2=80=99t think the Hi-Po pulley has the same offset as the Tiger pul=
ley, you will have to redo the mounts if that is the case to get the belt a=
ligned.=20
I=E2=80=99ve been through this dilemma on Tigers and other old Fords with g=
enerators. They were marginal when five grand was the upper rev limit, toda=
y most modern engine rebuilds are good for 6500 or more. Mechanically the g=
enerator is not really designed to spin at high speeds very long (Tigers ru=
n around 3K at 70), the bearings will overheat and spall, the brushes float=
and arc, the commutator breaks down, and then really ugly things begin to =
happen. Going to the Hi-Po larger pulley helps but you now have a lack of c=
urrent at lower speeds from a 25% or so reduction in rpm. The combination o=
f your headlamps, tail lamps, gauges, fuel pump, and ignition will consume =
around 270 watts, that=E2=80=99s 20 amps at 13.5 volts, and the generators =
I=E2=80=99ve had rebuilt might pump out 25 amps on a good day at max rpm, b=
ut at cruising speeds you=E2=80=99re lucky to get half that. Add a GPS, coo=
ling fan or other accessory and you will run out of juice.=20
So what=E2=80=99s the option? Obviously an alternator is the way to go, eve=
n under-driven they put out three times the current. But they look so moder=
n. As an alternative I have now installed three PowerGen alternators that l=
ook just like the generator. They can generate over 30 amps at idle and are=
good for 7000 rpm engines. They ain=E2=80=99t cheap but they look just lik=
e the OEM generator. They make a one-wire and a two-wire version, the Tiger=
offset pulley bolts right up.=20
http://www.summitracing.com/parts/PWM-82101/=20
The pictures are from my car.=20
Bugz=20
From: Tigers [mailto:tigers-bounces@autox.team.net] On Behalf Of genepadget=
t--- via Tigers=20
Sent: Monday, April 06, 2015 2:57 PM=20
To: Tiger's List=20
Subject: [Tigers] high speed generator pulley=20
Hi All,=20
In the book Performance Tuning the Tiger there is mention and a picture of =
a larger than stock generator pulley which slows the generator down and mak=
es it happier to be run at higher motor RPM's. Call me crazy, but I would l=
ike to find such a pulley and keep using a generator for the totally stock =
look on my higher reving 347 motor. BTW, my current pulley is about 3.25 in=
ches in diameter.=20
My current generator needs to be replaced and I have a remanufactured one o=
n order. It comes without a pulley. So as long as I have to put a pulley on=
it, I am thinking if I could find a la rger diameter one that would fit, w=
hy not?=20
I know there are alternators now available packaged in a generator looking =
style case but I really do not want to go there at the present time.=20
So does anyone know anything about that larger diameter generator pulley me=
ntioned in the book? A part number? Maybe it is stock for some of the other=
generators back in the day?=20
Any and all info would be greatly appreciated, and thanks in advance.=20
Gene=20
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<html><body><div style=3D"font-family: Times New Roman; font-size: 12pt; co=
lor: #000000"><div>Many thanks to all of you for sharing your collective wi=
sdom. The expertise available through all of you here on the List, an=
d the willingness to share it, continues to amaze.<br></div><div><br></div>=
<div>I did find what might be a useful under drive pulley. </div><div=
><br></div><div><a href=3D"https://www.npdlink.com/store/products/mustang_p=
ulley_generator_stamped_fins-100767-431.html">https://www.npdlink.com/store=
/products/mustang_pulley_generator_stamped_fins-100767-431.html</a></div><d=
iv><br></div><div>But at $280 it does not make sense to spend that amount o=
f money together with the $110 for the remanufactured generator, I would ha=
ve $390 invested in a solution that is inferior to an generator look-alike =
alternator for about the same amount of money. Plus something tells =
me that the pulley may only be 3.75 inches in diameter, whick would onlu gi=
ve me about a 12 percent speed reduction. That is based on what I se=
e for $900 on ebay:</div><div><br></div><div>http://www.ebay.com/itm/Ford-M=
ustang-AC-Cobra-OE-Restored-Fomoco-HIPO-Generator-Dynamo-/350893612053?hash=
=3Ditem51b2e39c15&vxp=3Dmtr</div><div><br></div><div>Cost aside, I had =
not factored in the possibility my 347 may need a pusher fan for cooling in=
very hot, slow speed weather/driving conditions. So far in 80 degree=
weather last year, the griffin radiator, 6 blade fan and reduced diameter =
pulley keep things nicely in the desired 195-205 degree engine temp range. =
Have not had a chance to see how things go under more stressful condi=
tions. Thanks Mark L for mentioning a cooling aspect I had not thoug=
ht of. Hate to have a generator setup that will not drive a pusher fa=
n near idle if it turns out I need one.</div><div><br></div><div>So for the=
time being I will just stick with the new generator and stock pulley. &nbs=
p; We will see it it lasts through its one year replacement warranty.!</div=
><div><br></div><div>I learned a lot through asking the questions, thanks a=
gain everyone for sharing your knowledge.</div><div><br></div><div>Best reg=
ards, Gene</div><div><br></div><div><br></div><hr id=3D"zwchr"><div s=
tyle=3D"color:#000;font-weight:normal;font-style:normal;text-decoration:non=
e;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Mar=
k Rense" <mark44124@gmail.com><br><b>To: </b>genepadgett@comcast.net<=
br><b>Cc: </b>"tigers" <tigers@autox.team.net><br><b>Sent: </b>Monday=
, April 6, 2015 5:35:02 PM<br><b>Subject: </b>RE: [Tigers] high speed gener=
ator pulley<br><div><br></div><style><!--
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--></style><div class=3D"WordSection1"><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:"Calibri","sans-serif"=
;color:#44546A">I don=E2=80=99t think the Hi-Po pulley has the same offset =
as the Tiger pulley, you will have to redo the mounts if that is the case t=
o get the belt aligned.</span></p><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#44546A"> </span></p><p class=3D"MsoNormal"><span style=3D"font-size:1=
1.0pt;font-family:"Calibri","sans-serif";color:#44546A"=
>I=E2=80=99ve been through this dilemma on Tigers and other old Fords with =
generators. They were marginal when five grand was the upper rev limit, tod=
ay most modern engine rebuilds are good for 6500 or more. Mechanically the =
generator is not really designed to spin at high speeds very long (Tigers r=
un around 3K at 70), the bearings will overheat and spall, the brushes floa=
t and arc, the commutator breaks down, and then really ugly things begin to=
happen. Going to the Hi-Po larger pulley helps but you now have a lack of =
current at lower speeds from a 25% or so reduction in rpm. The combination =
of your headlamps, tail lamps, gauges, fuel pump, and ignition will consume=
around 270 watts, that=E2=80=99s 20 amps at 13.5 volts, and the generators=
I=E2=80=99ve had rebuilt might pump out 25 amps on a good day at max rpm, =
but at cruising speeds you=E2=80=99re lucky to get half that. Add a GPS, co=
oling fan or other accessory and you will run out of juice.</span></p><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Calibri=
","sans-serif";color:#44546A"> </span></p><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:"Calibri",&=
quot;sans-serif";color:#44546A">So what=E2=80=99s the option? Obviousl=
y an alternator is the way to go, even under-driven they put out three time=
s the current. But they look so modern. As an alternative I have now instal=
led three PowerGen alternators that look just like the generator. They can =
generate over 30 amps at idle and are good for 7000 rpm engines. They ain=
=E2=80=99t cheap but they look just like the OEM generator. They make a one=
-wire and a two-wire version, the Tiger offset pulley bolts right up.</span=
></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri","sans-serif";color:#44546A"> </span></p><p =
class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Calib=
ri","sans-serif";color:#44546A"><a href=3D"http://www.summit=
racing.com/parts/PWM-82101/" target=3D"_blank">http://www.summitracing.com/=
parts/PWM-82101/</a></span></p><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:"Calibri","sans-serif";color:#44=
546A"> </span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:"Calibri","sans-serif";color:#44546A">&n=
bsp;</span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-=
family:"Calibri","sans-serif";color:#44546A">The pictur=
es are from my car.</span></p><p class=3D"MsoNormal"><span style=3D"font-si=
ze:11.0pt;font-family:"Calibri","sans-serif";color:#445=
46A"> </span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0p=
t;font-family:"Calibri","sans-serif";color:#44546A">Bug=
z</span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fam=
ily:"Calibri","sans-serif";color:#44546A"> </span>=
</p><div><div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3=
.0pt 0in 0in 0in"><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt=
;font-family:"Tahoma","sans-serif"">From:</span></b><sp=
an style=3D"font-size:10.0pt;font-family:"Tahoma","sans-seri=
f""> Tigers [mailto:tigers-bounces@autox.team.net] <b>On Behalf Of </b=
>genepadgett--- via Tigers<br><b>Sent:</b> Monday, April 06, 2015 2:57 PM<b=
r><b>To:</b> Tiger's List<br><b>Subject:</b> [Tigers] high speed generator =
pulley</span></p></div></div><p class=3D"MsoNormal"> </p><div><div><p =
class=3D"MsoNormal"><span style=3D"color:black">Hi All,</span></p></div><di=
v><p class=3D"MsoNormal"><span style=3D"color:black"> </span></p></div=
><div><p class=3D"MsoNormal"><span style=3D"color:black">In the book Perfor=
mance Tuning the Tiger there is mention and a picture of a larger than stoc=
k generator pulley which slows the generator down and makes it happier to b=
e run at higher motor RPM's. Call me crazy, but I would like to find=
such a pulley and keep using a generator for the totally stock look on my =
higher reving 347 motor. BTW, my current pulley is about 3.25=
inches in diameter.</span></p></div><div><p class=3D"MsoNormal"><span styl=
e=3D"color:black"> </span></p></div><div><p class=3D"MsoNormal"><span =
style=3D"color:black">My current generator needs to be replaced and I have =
a remanufactured one on order. It comes without a pulley. So =
as long as I have to put a pulley on it, I am thinking if I could find a la=
</span><span style=3D"color:#44546A"> </span><span style=3D"color:black">rg=
er diameter one that would fit, why not?</span></p></div><div><p class=3D"M=
soNormal"><span style=3D"color:black"> </span></p></div><div><p class=
=3D"MsoNormal"><span style=3D"color:black">I know there are alternators now=
available packaged in a generator looking style case but I really do not w=
ant to go there at the present time.</span></p></div><div><p class=3D"MsoNo=
rmal"><span style=3D"color:black"> </span></p></div><div><p class=3D"M=
soNormal"><span style=3D"color:black">So does anyone know anything about th=
at larger diameter generator pulley mentioned in the book? A part nu=
mber? Maybe it is stock for some of the other generators back in the =
day?</span></p></div><div><p class=3D"MsoNormal"><span style=3D"color:black=
"> </span></p></div><div><p class=3D"MsoNormal"><span style=3D"color:b=
lack">Any and all info would be greatly appreciated, and thanks in advance.=
</span></p></div><div><p class=3D"MsoNormal"><span style=3D"color:black">&n=
bsp;</span></p></div><div><p class=3D"MsoNormal"><span style=3D"color:black=
">Gene</span></p></div></div></div></div><div><br></div></div></body></html=
>
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