3483x2
Contributor
Posts: 180
Loc: Middlesex, CT
Reg: 01-02-09
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10-15-23 06:24 AM - Post#2863323
My 58 Chevy build plan:
348 4bbl Rebuilt stock lower end. Open water passages to match Edlebrock 60819 Heads & 7159 Manifold. Holley Terminator, Hyperspark Dist Box and Coil.
Should I concern myself with staying with my stock generator and PS pump?
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 Shepherd
Valued Contributor
Posts: 3182
Loc: Lake George, NY
Reg: 11-11-15
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10-15-23 08:01 AM - Post#2863328
In response to 3483x2
I would suggest a 80a or better alternator, between the ecu demands and the elec fuel pump, you need a constant output rate, more than the generator can supply.
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3483x2
Contributor
Posts: 180
Loc: Middlesex, CT
Reg: 01-02-09
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10-15-23 10:10 AM - Post#2863336
In response to Shepherd
Darn! That might be a real game changer. :sad :
Since my PS pump also connects to the Generator. That extra Power Steering draw would only expand on your caution. Still, I'm so very glad I asked.
I remain firm on the 348 stock lower with an Edlebrock top end build since it increases valve sizes to 2.19/1.72 from 1.99/1.66.
(Wanting the 348 to breath better with controlled spark and all the tuning benefits of EFI)
Have to go back the drawing board for best fuel delivery options. Thx
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kzhurley
Contributor
Posts: 161
Age: 40
Loc: Orrville,Ohio
Reg: 01-02-12
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10-15-23 07:57 PM - Post#2863354
In response to 3483x2
I just bought one of these for my 348 with the power steering generator.
http://www.classicgenerator.com/ClassicAlternators...
Very well made and look very close to a generator. A little pricey though.
1950 Styleline Deluxe 2-door sedan..
348 tripower/NP833 4-Speed/3.73
1950 Styleline Deluxe 4-door..
Vortec 4200 I-6/4l60e/3.42/current project car
1956 Cadillac Coupe de Ville 500 efi/4l80e
1987 GMC R1500 Sierra Classic
454 tbi/700r4/3.42
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Edited by kzhurley on 10-15-23 07:57 PM. Reason for edit: No reason given.
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Shepherd
Valued Contributor
Posts: 3182
Loc: Lake George, NY
Reg: 11-11-15
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10-16-23 06:48 AM - Post#2863368
In response to kzhurley
I put one on a 55 Chev, whole set up worked fine. This was 3 years ago, 100.00 less, same company
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3483x2
Contributor
Posts: 180
Loc: Middlesex, CT
Reg: 01-02-09
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10-16-23 02:43 PM - Post#2863381
In response to kzhurley
KZhurley, Shepard:
Thanks so much. That'll be the ticket for me.
Yeah, 7 Bills less for the budget, but it'll keep me on track and in the game.
Very glad an option like this exists.
Cheers
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3483x2
Contributor
Posts: 180
Loc: Middlesex, CT
Reg: 01-02-09
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11-09-23 05:45 PM - Post#2864023
In response to kzhurley
OK, Ordered and received the 9029 Alternator from Classic Generator. 
Everything looks as expected and it mounts to the PS Pump as expected.
No dig here, just an observation:
The front fan pulley differs from original both in looks and specs.(perhaps because of unavailability)
The belt portion of the pulley measures quite a bit smaller than the original pulley from my generator.
How did you folks address this difference?
1) A different fan belt?
I might have a extra GM pulley kicking around which would offer a more closer to original look.
So far, I've confirmed the same size 7/8ths retaining nut on both units. Haven't measured the mount spindle diameter yet.
Would there be any harm in swapping the pulley's or would be simply not a good idea. Thx
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3483x2
Contributor
Posts: 180
Loc: Middlesex, CT
Reg: 01-02-09
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11-15-23 08:23 AM - Post#2864188
In response to 3483x2
FWIW - I contacted Ken @ Classic Generator who responded with the following:
"The alternator comes with a smaller pulley in order to increase RPM on the alternator at lower engine RPM.
Yes, a smaller belt may be needed if you do not have enough adjustment on top.
The original one piece fan pulley for 58-59 were specific in appearance and pulley size.
The original fan pulley can be installed as the shaft size, nut and lock washer are all the same size.
When changing out that pulley there is a small spacer required to space the fan out away from the front housing.
There aren't any RPM requirements.
As mentioned above you just get into output at different RPMs.
So if you went to the original pulley, which you can do, you would just loose some RPMs on the alternator which means you loose amperage output as well.
That being said, even if you switched pulleys you would still have more amperage output at lower RPM with the new unit than your original 35 amp 1102115 generator."
As for me, I gonna stay with pulley fixed to the alternator for now since more RPM's for the EFI is my main reason going this way in the first place.
Great info IMO
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bobb
Super Senior Member
Posts: 6461
Loc: paradise
Reg: 09-05-03
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11-19-23 10:29 AM - Post#2864279
In response to 3483x2
The belt portion of the pulley measures quite a bit smaller than the original pulley from my generator.
you mean like its for a narrower belt? if so i would run the old one. wont hurt to see if its up to par. if the pulley groove is too narrow you could throw a belt.
| 70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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