What is easier to do? a carb setup 5.3 swap in a OBS truck or a fuel injected setup 5.3 swap in a OBS? I know how to set up carb motors really well but not to sure on fuel injection stuff.
Whats easier?
What is easier to do? a carb setup 5.3 swap in a OBS truck or a fuel injected setup 5.3 swap in a OBS? I know how to set up carb motors really well but not to sure on fuel injection stuff.
Last edited by Chevlowrider; 07-15-2008 at 07:17 PM.
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
fuel injected setup
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
alright just curios and searching my options, thanks bud
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
What would be the point in going to a carbed 5.3? If you were to do anything carbed it would be a old school 350 or 383 possibly 400 SB.I definately would'nt even think about an lsx series motor carbed?
Tired ol' 5.7, 5.3 swap in progressHandle every stressful situation like a dog.If you can't eat it or hump it.Piss on it and walk away.
i have seen a few, butIMO the hole point of going to a lsx, is for the fuel injection an they get awesome gas mileage. with out sacrificing power.Originally Posted by aarolar
What would be the point in going to a carbed 5.3? If you were to do anything carbed it would be a old school 350 or 383 possibly 400 SB.
Not so fast...an LS2 picks up over 40hp over the fuel injection by just slapping the carb intake and an 850....that and a nice cam and your looking at over 500hp on an LS2. These motors respond well to carburetors, GM holds them back with these plastic intakes.
30' Ford Model A Tudor Sedan - Custom chassis - Big bore LS2 - twin B76's - Glide - 9" w/ 3.07 gears - 30" DR tire - 2k lbs cruiser
TY
Simple: 408 on steroids!
single digits coming soon!
but how is the mpg?
Yeah my buddy has a carbed 5.3 in his camaro and it runs low 10s and before when he had the fuel injection he ran low 11s. i think thats a real nice gain. and im not really worried about mileage cause i only drive this truck during the summer.
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
I think the LSX engines are impressive either carb'd or fi.
I have a 5.3 in an obs, and stayed with the fi, as I figured all the technology and tuning would be going in that direction.
The software, though challenging to learn, gives you nearly infinite options for tuning which is very fun.
That said, the carb is definitely not dead, and some carb'd lsx engines are making big power.
My vote would be stick with the injection. FWIW
'92 Fullsize, swb rc
5.3L/T56 conversion, comp XR275 HR cam .566/.568 lift 222/224 duration 112 lsa, crane dual springs, trick flow push rods, K&N Filter, Nelson Performance tune, Keisler shifter relocation kit, Boyd Coddington Smoothie II 18x8 235/55 up front, 18x10 295/45 out back, 2/4 drop, eaton lsd w/4.56 gears
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