Which size alternator pulley with 6 pound lower pulley and stock upper?

[brasil]

I am going to add a 6 pound lower pulley and keep the stock upper. I have heard different opinions on the size of the alternator pulley. SOme say to get the 3.5 for the 6 pound lower, others have said to get the 3.2 because the 3.5 will slow the accessories too much. WHich is the correct size to get?

 

[brasil]

Ttt

 

[brasil]

Ttt

 

[brasil]

ANyone using lowers that can reply?

 

[racerat]

3.5" for a 6lb lower.

 

[Slow04Cobra]

3.5" for a 6lb lower.

Yes, she is correct :thumbsup: .

Slow

 

[brasil]

Thanks!

 

[JasonHogan]

Mark at LFP said 3.2 due to slowing the alt to much with a 3.5

 

[brasil]

I keep getting conflicting info. as well on this subject.

 

[brasil]

Terry from SFPH said the same thing

 

[brasil]

I was told that not even Metco carries the 3.5 any longer.

 

[brasil]

Jason, you are correct, I checked with Mark, and he recommended the 3.2 as well.

 

[jrh99]

The 3.2 gives me around 13.9V at idle with no accessories loading the alt., I would never want a 3.5 alt pulley unless I had the 8lb lower, even then the 3.2 should be fine.

I have a 6lb lower w/ stock upper. Also, Metco claims they stopped selling the 3.5 alt pulley.

 

[brasil]

THey did Joe, I spoke to Aaron and they only make the 3.2 now.

 

[brasil]

blown, what are your mods?

 

[jrh99]

power mods are:

6lb lower, bassani offroad x and catback, pro-m meter and filter, sct 9100, and tr6 plugs