3g Alt Question

[TOOLOW91]

Yes I am just full of questions

Did the swap , very happy with it except at idle it dips to about 12.5 v , I notice the pulley is bigger on the 3G . if I swap my fox pulley do we feel it would help ?

4ga wiring from alt to Solonoid with fuse as well



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[madspeed]

is it the 1 wire version with internalregulator? Those require a bit of rpms to get them "started"

 

[TOOLOW91]

is it the 1 wire version with internalregulator? Those require a bit of rpms to get them "started"

no sir has the same connections as reg 3 g the reg is on the back 3 wires

the white goes from the big connector to the small square one , green to green yellow to yellow and then my 4ga


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[revhead347]

Yes, swapping the pulley will help keep the alternator up to speed.

Kurt

 

[TOOLOW91]

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[TOOLOW91]

Yes, swapping the pulley will help keep the alternator up to speed.

Kurt

Thanks that's what I figured but wanted an opinion


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[Mustang5L5]

Yes, swap the pulley.

You'll need a 5/8 ID washer to act as a spacer. You'll see what I mean when you try to slip the 2G pulled onto the shaft.

 

[madspeed]

that smaller pulley should fix you up

 

[85rkyboby]

If you put a smaller pulley on a 2g will it overheat and burn up?

 

[mikestang63]

If you put a smaller pulley on a 2g will it overheat and burn up?

no. I run a over drive 1 11/16 pulley. People have been doing this mod for years with no problem.

 

[MikeH686]

Yeah the pulley change will help im running 14.4v at idle

 

[TOOLOW91]

Yes, swap the pulley.

You'll need a 5/8 washer to act as a spacer. You'll see what I mean when you try to slip the 2G pulled onto the shaft.

use it on the back side because it will sit to close to the case ??


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[Mustang5L5]

Yup.

If appearance is an issue, ASP makes compatible alternator pulleys of various finish. Diameters are 1 7/8", 2" and 2.5".

 

[TOOLOW91]

Yup.

If appearance is an issue, ASP makes compatible alternator pulleys of various finish. Diameters are 1 7/8", 2" and 2.5".

Got it will do it tomorrow thank you !

 

[Mustang5L5]

Just to clarify, the 5/8" is the ID. That's the shaft diameter so the washer would slide on.

Just don't want anyone to buy a 5/8 OD washer!

 

[TOOLOW91]

Just to clarify, the 5/8" is the ID. That's the shaft diameter so the washer would slide on.

Just don't want anyone to buy a 5/8 OD washer!

I assumed LMFAO . I will grab one tomorrow at work Thank you again pal

 

[85rkyboby]

no. I run a over drive 1 11/16 pulley. People have been doing this mod for years with no problem.

Alright cause my Power Master is low at idle and about 12.9 or so when I'm driving.

 

[Mustang5L5]

When you rev the engine it's still 12.9? Might be a voltage regulator issue. Should have 14v above idle.

 

[85rkyboby]

I thought so as well but I had it tested its fine. Its internal. I'm just thinking its cause my underdrive pulley

 

[mikestang63]

I thought so as well but I had it tested its fine. Its internal. I'm just thinking its cause my underdrive pulley

yep. ditch the U/D alt pulley as it's probably 2 1/2" and is meant to slow the alt- not good. . I bought the March overdrive pulley off Flea bay.. Sorry don't remember the PN off hand but it made a big difference. You can see it in my sig pic.