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need help on wiring up 100 amp alt &volt reg #1227116
05/04/12 09:24 AM
05/04/12 09:24 AM
Joined: Jan 2003
Posts: 525
Shannonville, Ont
Blown 68 R/T Offline OP
mopar
Blown 68 R/T  Offline OP
mopar

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Shannonville, Ont
Coming closer to the end of my F2 Procharger build but am stuck on wiring. The YO catalog suggests using a points style wiring harness if using aftermarket electronic ignition, so i picked one up. I have the 100 amp alt fm tuffstuff and my igniton is a MSD Dig 7 with HVC 2 coil.My question is how do we wire up the alt and volt reg using this points style harness?

Re: need help on wiring up 100 amp alt &volt reg [Re: Blown 68 R/T] #1227117
05/04/12 09:52 AM
05/04/12 09:52 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Romeo MI
Quote:

Coming closer to the end of my F2 Procharger build but am stuck on wiring. The YO catalog suggests using a points style wiring harness if using aftermarket electronic ignition, so i picked one up. I have the 100 amp alt fm tuffstuff and my igniton is a MSD Dig 7 with HVC 2 coil.My question is how do we wire up the alt and volt reg using this points style harness?




Theres no reason you nee the one wire reg... factory
big alt had the electronic type reg... here is a
diagram for a new reg

7191949-DSC00021.JPG (55 downloads)
Re: need help on wiring up 100 amp alt &volt reg [Re: MR_P_BODY] #1227118
05/04/12 10:17 AM
05/04/12 10:17 AM
Joined: Jan 2003
Posts: 4,152
SO. CAL.
7
70blackfish Offline
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SO. CAL.
don't run that 100 amp through the factory bulk head at the fire wall.....look into what I'm saying, if you haven't already.

Re: need help on wiring up 100 amp alt &volt reg [Re: 70blackfish] #1227119
05/04/12 10:23 AM
05/04/12 10:23 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Quote:

don't run that 100 amp through the factory bulk head at the fire wall.....look into what I'm saying, if you haven't already.




Yeah... but as soon as it lets the smoke out it would
be fine...LOL... depending on what your doing with
the car you would most likely be running the output
lead to the back of the car so you would be by passing
the bulkhead

Re: need help on wiring up 100 amp alt &volt reg [Re: MR_P_BODY] #1227120
05/04/12 11:35 AM
05/04/12 11:35 AM
Joined: Jan 2003
Posts: 525
Shannonville, Ont
Blown 68 R/T Offline OP
mopar
Blown 68 R/T  Offline OP
mopar

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Shannonville, Ont
Mike,
i'm using the race reg #P3690731

Blackfish, i'm bypassing the firewall. been there done that!

Re: need help on wiring up 100 amp alt &volt reg [Re: Blown 68 R/T] #1227121
05/04/12 12:10 PM
05/04/12 12:10 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
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Romeo MI
Quote:

Mike,
i'm using the race reg #P3690731

Blackfish, i'm bypassing the firewall. been there done that!




Is that P/N the one wire mech reg or the newer elec
reg

Re: need help on wiring up 100 amp alt &volt reg [Re: MR_P_BODY] #1227122
05/04/12 12:17 PM
05/04/12 12:17 PM
Joined: Jan 2003
Posts: 525
Shannonville, Ont
Blown 68 R/T Offline OP
mopar
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mopar

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Shannonville, Ont
mike
It's the elect one (blue) race 13.5 constant 2 pin.
Just wondering what wires to hook up to alt which ones to splice for reg.

Re: need help on wiring up 100 amp alt &volt reg [Re: Blown 68 R/T] #1227123
05/04/12 12:22 PM
05/04/12 12:22 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Romeo MI
Quote:

mike
It's the elect one (blue) race 13.5 constant 2 pin.
Just wondering what wires to hook up to alt which ones to splice for reg.




If you look at the diagram I put up you can see where
the wires go.. you can use either wire and it will
work either way... just need a sense wire(hot with
the ignition on)and the other wire goes to the reg
from the alt... sorry that pic is blurred

Re: need help on wiring up 100 amp alt &volt reg [Re: Blown 68 R/T] #1227124
05/05/12 03:57 PM
05/05/12 03:57 PM
Joined: Mar 2007
Posts: 3,285
West Coast, USA
jbc426 Offline
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West Coast, USA
Quote:

mike
It's the elect one (blue) race 13.5 constant 2 pin.
Just wondering what wires to hook up to alt which ones to splice for reg.




This must be a drag car only. It will overcharge the battery on extended street use.

The factory alternator main wire is too small for 100 amps and is routed directly routed through the bulkhead to the amp guage and then back out to the starter relay.

It sounds like you are aware that is bad, and will bypass the amp gauge by bolting both wires to one side of the gauge and supplement the alternator power distribution with a fusible link protected cable.

Under the hood, add a larger cable with a fusible link directly from the alternator output to the starter relay, and then you can use that relay stud as the distribution point for your high current accessory items, ignition, fuel pump etc.

Use fusible links leading out on all those wires.

Consider adding relays for things you need to turn on and off that need that high current flow.

Last edited by jbc426; 05/05/12 04:00 PM.

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: need help on wiring up 100 amp alt &volt reg [Re: jbc426] #1227125
05/05/12 04:47 PM
05/05/12 04:47 PM
Joined: Feb 2003
Posts: 1,646
Ontario,Canada
F
firefighter3931 Offline
top fuel
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Posts: 1,646
Ontario,Canada
Quote:

Under the hood, add a larger cable with a fusible link directly from the alternator output to the starter relay, and then you can use that relay stud as the distribution point for your high current accessory items, ignition, fuel pump etc.







That's how mine is wired with the same 100 Amp alternator.

Kev, There is enough leftover wire & fusible link to do yours



Ron







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