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
what the hell is mpg?Originally Posted by ChevyLee
but how is the mpg?
1951 3100
1984 C10
Yeah what is this MPG you speak of?
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
Sounds foreign to me..Yeah what is this MPG you speak of?
1951 3100
1984 C10
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.
hmm thats new to me
1951 3100
1984 C10
mpg's we don't need your stinking mpgs
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
Cam'd 5.3L (w/ some other SLIGHT mods).... mpg = 18 (hwy)
My motor's fuel injected. Thought about carb'd, but didn't like the idea of cold-starting during winter months. Someone on this board did a carb'd setup in a mid-80s truck. Don't recall any major downfall.
5.3L '86 Silverado (E/T: 14.37s @ 94mph) - First Time Out!Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph
yeah but i dont need to worry about that cause my truck is stored from october to march. i just think carbed would be so much easier for me and a lot less work and cheaper cause i got some good holleys sittin on the shelf. and i can rebuild them real fast since both my race cars have holleys.
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
but what would run the coil packs? would i dtill need the pcm for them cause if i do then f it ill just fuel inject it.
White 1992 C1500 RIP, lost to fire
Orange 1997 C1500 Autocross truck
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