high output alt for 2008 impala 3.9

[coogismoove 10+ year member]

need h/o alt for impala 3.9 cost depends on amp and condition.

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[NASTY08IMPALA 5,000+ posts]

That's a little to high for me I'm staying around the 400-500 range with good idle amps

U need to run a external regulator on that car with that motor.thats a extra 125 bucks ..if u dont when the computer shuts down to 3cyl mode the voltage will drop to 12.9. Fyi i run the mechman 240 in my 08 with the 3.9

 

[Timmy13091 10+ year member]

No.
It's time to go to bed here

Fuccckk that I just got home got stuck with 4 cars at 7 .. People are dumb ..

 

[mylows10 5,000+ posts]

Let me ask u this Jim ..... What do u think about the price of eggs ?

Okkkkkkkk

 

[mylows10 5,000+ posts]

ok that sounds a little better.

Also the external reg or a bypass

 

[coogismoove 10+ year member]

U need to run a external regulator on that car with that motor.thats a extra 125 bucks ..if u dont when the computer shuts down to 3cyl mode the voltage will drop to 12.9. Fyi i run the mechman 240 in my 08 with the 3.9

did you switch the factory current sensor over to the new charging wire? its a little black plastic loop with a plug at the end its about the to four inches down from the pos on the starting battery. when i did the big3 my car was going into battery saver mode until i did that maybe that was your prob??

 

[coogismoove 10+ year member]

Also the external reg or a bypass

what is the difference between the two cost and function?

 

[mylows10 5,000+ posts]

what is the difference between the two cost and function?

The external reg is adjustable and cost $125. The bypass allows the alt to charge at a higher voltage by bypassing the ecu usually $60

 

[NASTY08IMPALA 5,000+ posts]

did you switch the factory current sensor over to the new charging wire? its a little black plastic loop with a plug at the end its about the to four inches down from the pos on the starting battery. when i did the big3 my car was going into battery saver mode until i did that maybe that was your prob??

No i ect regulated mine from the start..has nothing to do with batt saver mode..its the afm on the car when it switches to econ mode and goes to 3 cyl

 

[NASTY08IMPALA 5,000+ posts]

did you switch the factory current sensor over to the new charging wire? its a little black plastic loop with a plug at the end its about the to four inches down from the pos on the starting battery. when i did the big3 my car was going into battery saver mode until i did that maybe that was your prob??

I dont have the factory alt plug used at all ..but. i do have the batt saver active pop up ..what exactly did u do to bypass that ...i never really looked into it

 

[Timmy13091 10+ year member]

Okkkkkkkk

Is it worth the wear and tear on the chickens assss

 

[mylows10 5,000+ posts]

Is it worth the wear and tear on the chickens assss

You tell me

 

[Timmy13091 10+ year member]

You tell me

Nope I asked u first ..

 

[mylows10 5,000+ posts]

Nope I asked u first ..

No idea

 

[SounDrive Pro Seller]

I'm a mechman dealer, shoot me a PM if you're interested in a new alt. mechman usually has the best prices of all the HO alt manufacturers.

 

[BEEKAY]

Go with Singer.. You won't regret it.