Recommended pulley size/setup for stock Eaton?

[SoCalCobra]

Like the topic says, I'm going to be swapping out the stock pulley for another size. I've been doing a lot of reading and am curious to what you guys would recommend? I read that idlers help decrease belt slip, so what would be a good combo with or without the idlers, it doesn't matter.

I've been looking at this combo from LFP. Click Here.

Suggestions?

 

[TrickStang37]

2.76 pulley, 100mm idler.

 

[jm@ReischePerf]

This question gets asked every week and I'll say it again: 2.93 FTW. Less chance of fuel or MAF issues. I'll agree on the aux idler though.

 

[64comet]

Had a 2.8" and was very happy.

 

[Almo]

2.76 pulley, 100mm idler.

+1 :rockon:

 

[TrickStang37]

This question gets asked every week and I'll say it again: 2.93 FTW. Less chance of fuel or MAF issues. I'll agree on the aux idler though.

true, i needed a MAFia and my fuel pump is maxed.

 

[suaveflooder]

2.93 is the best overall from what I've read. You won't overspin the eaton, and you're really not going to get THAT much more power by going smaller.

 

[skaarew04SVT]

depends. Do you plan to port in the future. I have a 2.76 on a non ported eaton. Zero MAF or fuel pump issues here. When I get her ported here in the very near future, I am keeping the 2.76, adding a 2 pound lower and supporting mods

 

[SoCalHarley]

I have been using a 2.93 with great results... no idlers and no belt slip. Good choice for an unported eaton.

 

[Ex President]

2.93 upper and a 2lb lower...

 

[LargeOrangeFont]

3.1 and a port.

 

[SNAKE CHARM]

I started with the 2.93, big difference then I switched to the 2.76 and noticed a bit more, I don't plan on porting or doing a lower just switching to a Whipple. All depends on what you want out of it.

 

[JedWele]

Without a port , I think the 2.93 with a aux idler is the better choice. As mentioned above with the 2.76 your close to maxing out MAF, plus it will heat the air much more without a port.

I just did a Billet flow 2.93 with idler and Dayco belt last Sunday and not only is the power increase great over stock pulley, the whistle that I got now sounds like a centrifugal and that alone was worth the money.

 

[Snakebite2k3]

2.93 with a 4lb lower FTW!

 

[PWORLDSTANG]

2.76 pulley, 100mm idler.

+2!

 

[SoCalCobra]

Without a port , I think the 2.93 with a aux idler is the better choice. As mentioned above with the 2.76 your close to maxing out MAF, plus it will heat the air much more without a port.

I just did a Billet flow 2.93 with idler and Dayco belt last Sunday and not only is the power increase great over stock pulley, the whistle that I got now sounds like a centrifugal and that alone was worth the money.

What kind of tuner, if any did you use?

Also, looking on lethalperfomance's website, they have the Billetflow w/ hub and 1 pulley: here, and then just the pulley by itself here. If I have the stock pulley, would I have to purchase the pulley w/ the hub for it to fit, or is that more like a quick change hub to allow me to swap out pulleys faster?

 

[ViciousJay]

agreed with most of th posters, get s 2.93 i have nasty slip with my 2.76 and idlers, i think im gonna try to find a 2.93 off a lightning to look stock and maybe throw a 4lber on or 6lber

 

[JedWele]

What kind of tuner, if any did you use?

Also, looking on lethalperfomance's website, they have the Billetflow w/ hub and 1 pulley: here, and then just the pulley by itself here. If I have the stock pulley, would I have to purchase the pulley w/ the hub for it to fit, or is that more like a quick change hub to allow me to swap out pulleys faster?

Yeah you’ll need the pulley ring and hub, (although I would get the idler pulley also), and yes once you have the hub you can buy just the ring and do a quick swap.

I got a mail tune from RWTD , which I will get on a dyno just to double check it soon just to be on the safe side.

 

[Almo]

2.93 upper and a 2lb lower...

Nice O/Wheel Mod in your sig. :beer:

 

[ReVviNg HiGh]

2.76 / 2.80 with all idlers No belt slip here at all.