old motorhead

iTrader: (10)

A 2.3L twinscrew is going to have a pretty strong top end on a 5.3L. It's also going to have a pretty strong low end.....and a pretty strong mid range. In a 5.3L, it won't have all that brutal low end torque that the folks that don't have it complain about. Hmmmm. How much power are you trying to get out of your 5.3?

Link2603

iTrader: (4)

Just my opinion. Everything has its strong and weak points. I just belive whipples weak point is in the big end.

fortplainman

hey man i cant really comment on either but here is a great thread to read up on the whipple and how mike at new era performance has built his up so far:

https://www.performancetrucks.net/fo...rmance-505827/

ZO6Ted

Many Lightnings run low 11's and better with 2.3s. They feed a 5.4 just fine so they would a 5.3 as well. Top end is where a screw does better than a Roots but not as good as a belt driven turbo. My .02.

Duntov1967

iTrader: (21)

I must have the 3rd one. We must just be lucky. LOL

Bromaguire

I would go with an intercooled Whipple setup over a Procharger any day. I had a 2.3 Whipple on my stock 6.0 in my Yukon Denali and it pulled hard throughout the power band including the top end. I would have gone with a Procharger on my current motor if I felt it would have had better results but you can't beat the power delivery of a Twin Screw blower.

Silveradorst07

Go with 85lbs injectors just in case you plan on going with more boost later on or a bigger supercharger or turbo so you wont run lean. After you hit a certain rwhp

burdman864

I have a Procharged p1, 07 gms sierra classic with a 4l60. I put 60lbs injectors in for room to grow and keep down duty cycles! THE kit call for 42 but 42 and 60 are about the same price, around 500 on ebay. The truck has 35" Mt on R20 and still put down 380 to the tires and around 500 at the enigne. my trans went out around 3,000 miles AT 8psi so under any boost you are on borrowed time with the 4l60. with that said at 8psi around 3,000-6,000rpms the truck is a beast. I'm happy with what I got but it all starts as its not going to be a project truck but about 10 grand in trans,headers,exhaust,meth and labor it quickly was!

Mike @ New Era

iTrader: (10)

I strongly disagree with the Whipple lacking top end power. My truck (2012 5.3)ran 11.9 @ 117 mph last year with the whipple 2.3, meth, and headers. Now find another 4wd truck that trapped 117 mph with an 11.9 ET... This clearly justifies some impressive top end power... Just saying...

Check my build thread for more information if you like, the link is in the bottom of my sig.

Video at the track last year:

http://youtu.be/I8tTzzaOdrw

Link2603

iTrader: (4)

That's easy to find he posted in this thread already. Are you strictly talking about superchargers? You are the fastest Whipple time I've seen on our trucks.