Hemi Killer

iTrader: (6)

How would this do with my set-up? I figure that I'd have to have injector bosses drilled for the truck injectors. An intake elbow from intakeelbows.com and some kind of bracket for the throttlebody cables. Then maybe upgrade to a 90mm throttle body.

My main concern is gaining alot of top-end without loosing a bunch of low end. I could manage loosing a tiny bit, but not enough to where it would bog during daily driving. I think the rpm rating is like 1500-6000 or something. So what do ya'll think?

Steve Bryant

iTrader: (1)

If you want to gain top end performance, none of the single-plane traditional intake manifolds are as good as an LS6 or FAST manifold design in my opinion. For that matter, the truck manifold isn't far behind the LS6 and the LS6 is not far behind the FAST until you get above 6,200 or so. Also, in my opinion, the main advantage of the single plane manifolds is that they allow folks who want to stick with a carburetor the ability to use the wonderful LS series engines. Westech has done some tests on both the GMPP and the Edelbrock single plane manifolds that have been published in some of the PRIMEDIA magazines.

Do some looking and see what you think.

Steve

Hemi Killer

iTrader: (6)

I thought one of the carb manifolds outflowed the LS6 by over 40rwhp?

Cop Car

iTrader: (14)

you wont be loosing that much bottom end, but gaining tons of top end.

get a stall, itll take care of it and shave a second off your quarter mile time with your setup.

not sure that you would have to even use an intake elbow, im trying to get an answer myself right now. i think you could just stick the throttle body ontop of the intake and be fine, or get a kinsler 4bbl injection kit, because an aftermarket 90mm tb is going to cost you 500 anyways.. plus an elbow.. it adds up..

Hemi Killer

iTrader: (6)

Good point, thanks. Anybody else?

Hemi Killer

iTrader: (6)

Does anybody have a link to that article? It was on here a while back. Can't remember if a sponser did it or somebody else.

cws T/A

iTrader: (3)

You will not lose torque only change the rpm range in which it produces it . Long runner is better for a street vehicle. I went from a Victor to a performer rpm and gained a ton of under the curve power , my stall would flash higher , overall the truck was quicker with the less racey looking intake . This was on a 355 sbc 95 s10 .

chevydad

the ls2 crate motor is rated at 400hp. the same 6.0 with a gm carbed intake is rated at 440hp. that's right out of the gm performance catalog.

here's the link

http://www.gmperformanceparts.com/Pa...l.jsp?engine=2


ls2 400hp
http://www.gmperformanceparts.com/En...6261&engCat=ls

ls2 440hp
http://www.gmperformanceparts.com/En...2134&engCat=ls

cws T/A

iTrader: (3)

I guess I was wrong in the not losing torque part ,it lost a crap load .

http://vetteweb.com/tech/vemp_0612_ls2_crate_motor

I believe the Gmpp single plane may be better ? FWIW a LS6 intake is better than a LS2 instock form . Fast 90 is better than both of those

Hemi Killer

iTrader: (6)

Looks like a LS6 intake might be what I need. Anybody see any benefits of having an LS6 intake ported? Or would that loose velocity down low and cause a loss of low-end torque? Or would it be smart to just do a 90/90 FAST set-up? Would the FAST 90/90 hurt gas mileage?