I have a 01 5.3l a.r.e stage 1 heads, stock bottom end,180 electric fans, jba shorties, custom y pipe, gibson side exahust, level ten tranny, 2900 stall, level ten posi rear , eaton 3.73s, maganacharger side mounted one makin 4lbs of boost.
Cartek dyno tuned it and got 340 torque and 310 rwhp, on 4 lbs.

AND 20's LOL

 

Power potential is the only thing that centrifugals have over some roots or twin screw blowers for the most part. Turbo's usually have more power potential than centrifugals and make power much sooner in the powerband. Usually the difference between the centrifugals and the turbo's is a few hundred bucks. Do a little more research on the new turbo's available. I wish I would have.

 

I have just finished tunning an 02 escalade with a 6.0, and it flat out hauls! 14.16 in the quarter, All wheel drive. A 2900 stall will be fine. This truck doesn't have any stall YET. We will be installing one in about 3 weeks with an updated trans, and gears as well. This should put this 6,000 pound brick into the low 13's.

 

neither! get a radix. if you must get a centrifugal, get the vortech. your converter isn't big enough either as the power won't really come on (depending on pulley selection) until at least 3k RPM or more. how high do you want to spin your motor? if you are going to keep it around 6k or less, reduce the pulley size and the boost will come on quicker but also at the expense of increased IAT's.

 

What's the shift extention of a 2900 stall?

 

Well I really dont want to change the stall Im actually tryin to sell the truck but No one wants it with the magnuson and its just becoming a hassle. So im tryin to put the right set up on it and get rid of it. But at the same time im thinking if i put the right set up on it I might like it and keep it.

My goal is to go mid 12's and what kinda power do I need to get that?

Vortech , Magnuson , ATI , Turbo what companys make turbo kits I know STS but im not to sure about mounting a turbo like that not that it will cause probs but i just cant see it being under their and all the way for boost to travel I just dont see it makin that much power that turbo set up IM sure im wrong but.
thanks for all your help guys
Nick
Keep the info comin

 

Honestly I think that a 2900 stall would be enough for an ATI running 8-9psi. Be just enough to where wheelspin wasn't uncontrollable, but still really put you back in your seat.

PS, if you are going to sell the truck, take off the blower, and sell it NA. It will be easier to sell, and you will end up with more $$ in the bank.

 

A 2900 is definately not enough. I had my PI restalled to 3000 and I need at least a 3500. Im only at 7# today, but I will be swapping pulleys this weekend to get 12#. Once I get it retuned I'll update, but from an out of pocket perspective a Turbo is way more efficient. Have you checked out some of F8L's posts??? It also looks like that FMIC wasnt too hard to fab up. It seems pretty apparent that the turbo's are better in every respect. Have you driven a truck with a centrifugal??

 

I had a truck with a centrifugal with a stock stall and it didn't feel sluggish at all. It was a 96 vortec 350 with the little bd-11 powerdyne at 9psi, and a stock stall. Maybe it was because mine was the older style motor, but mine had more than enough bottom end power. I would have been extremely happy to have a 2900 stall though. My truck would have been tons faster at the track.

 

Heres the deal---- If you're looking for good timeslips with a centrifugal style charger, you need a 3500+ stall with at least 4500 rpm shift extension. That will get your 60' times down enough and keep you in the power band to get some decent times.

A 2900 stall would be fine, but not for a good ET.

I had a 3000 stall and the best 60' I could pull was a 2.3. You would need some serious power to run a 12 with that slow of a 60' I have a 3800 stall now, and the best 60 I've pulled is a 1.77.