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1969 Camaro LS3 alternator concerns

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mdavidthomas

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Discussion starter · #1 ·
I am running a LS3/TR6060 and plan to run a PWM controlled ZL1 fuel pump module and a a PWM fan. I am running the LS3 Camaro accessories but due to interference problems I purchased a smaller case alternator from a 1999 GM truck and an ICT Billet alternator bracket. The alternator is rated at 105 Amps and the original alternator for the 2013 camaro was rated at 150 Amps. I know a PWM VA monster fan can pull upwards of 70 amps. Any suggestions on whether or not the 105 Amp alternator will be big enough for the car running the above options and the original light and radio circuits?

Not my engine but shows placement of alternator with ICT Billet bracket 551971-LS3-3.

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and here is the smaller frame 105 Amp alternator AC Delco 1035-1068.

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#2 ·
LS2 6.0 with LS3 heads...my alternator is on a home built bracket since the ICT didn't work well for me.

My alt (CS130) is maybe 3/32 MAX from the upper control arm bolt.

IF I could find a 1/2" shorter belt... I'd feel better about it.
 
#4 ·
I think you will be ok since it looks like you don’t have air conditioning. Monster fan should rarely draw 70 amps. Fuel pump is negligible.

Don
 
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#5 ·
That almost looks like a CS-130 alternator that GM used for many years, also rated at 105 amps. From what I see, the 1035-1068 had a short run with GM, mostly 1996 - 1999. IIRC, LS3's have something like a 200 amp alternator.

I had a CS-130 on my 79, but I have a ProFlo 4 EFI, fuel pump, dual electric fans, transmission cooler fan, a/c, halogen lights, etc. While the CS-130 was capable, it was marginal at idle.

I wound up buying a Power Master alternator that has the same footprint, but a higher output. Might be worth it to give them a call. They're a USA company - Chicago. Good luck with you swap, buy extra rear tires.
 
Discussion starter · #6 ·
The alternator is a CS130D rated at 105 amps but I am not sure where on the curve (i.e. idle, cruise, WOT) the rating occurs. Here is the Powermaster stated curve on their CS130D. They have a 120 Amp and 165 Amp model but both only generates ~ 100 amp at idle. Tuff Stuff has a 125 and 175 Amp models but probably just a battle of the numbers between the two.

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#7 ·
I run a CS130D alternator that is 102 amps with electric fuel pump & dual electric fans both on separate 30 amp relays, LED headlights, no air never had a issue. Its a REMY 91524, new not reman. from a member on another forum for 60.00.
 
#11 ·
I run a GM 140 truck alternator, 25% underdrive crank, and a 3" alternator pulley. I charge between 14.3 and 13.8.

I power a Holley ECU, 1994 ish Taurus fan, my lights, I'm turbo charged. No problems here.

I think my alternator is a 2002 Escalade style on Rock Auto.
 
Discussion starter · #12 ·
slazisme said:
I run a CS130D alternator that is 102 amps with electric fuel pump & dual electric fans both on separate 30 amp relays, LED headlights, no air never had a issue. Its a REMY 91524, new not reman. from a member on another forum for 60.00.
View attachment 317125
Click to expand...
What brand is the bracket you are running? Mine is a ICT Billet and is just raw aluminum. I like the black one.

mdavidthomas
 
Discussion starter · #13 ·
Pro Stock John said:
I run a GM 140 truck alternator, 25% underdrive crank, and a 3" alternator pulley. I charge between 14.3 and 13.8.

I power a Holley ECU, 1994 ish Taurus fan, my lights, I'm turbo charged. No problems here.

I think my alternator is a 2002 Escalade style on Rock Auto.
Click to expand...
Any pics of the Ford Taurus fan mounted. I am thinking of running one of these or a Lincoln MKVII.

mdavidthomas
 
Discussion starter · #14 ·
Worn Out Welder said:
If you’re not running all the accessories that are on the 2013 Camaro in question ( power seats, air, etc.
As was pointed out the rest is negligible.
Click to expand...
I figured that but those big Ford fans or the C6/C7 corvette fans I understand pull a lot of amps at full load. However, I am planning on running a PWM controller which will lower the initial inrush current.

mdavidthomas
 
#15 ·
mdavidthomas said:
I figured that but those big Ford fans or the C6/C7 corvette fans I understand pull a lot of amps at full load. However, I am planning on running a PWM controller which will lower the initial inrush current.

mdavidthomas
Click to expand...
The Mark 8 pulls 40 amps FLA from memory.
The northern radiator controller was designed with that in mind.
There is a lot of information on various combinations of cooling systems available…
A search would be more informative than I can be.
 
#20 ·
Kept most of the shroud and Jay added to it. I had to mount the fan low to clear my air intake.

My first choice if I have the room is to run a 6th gen Camaro or C6/C7 fan with a PWM controller. Only problem is some of those fans are pretty wide.
 
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Pro Stock John
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