CARB LS COMBOS-DO THEY WORK? LET'S TALK TECH
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- Опубликовано: 4 дек 2024
- WHAT IS ALL THE UPROAR ABOUT A CARBURETED LS MOTOR? IS IT BECAUSE IT ORIGINALLY CAME WITH EFI? LOT'S OF GUYS THINK A CARB IS A STEP DOWN, BUT LOTS OF THESE GUYS HAVE NOT RUN TESTS. I HAVE SOME CARB INTAKES FOR SALE TOO. LET'S TALK TECH.
I'm old, I've been swapping LS for over 10 years now. When I first started out everything was fuel injected with a stock harness and manifold, the fuel system and tanks were a learning curve. Last year I finished a swap of a 5.3 into my '68 C10, I had to go thru everything and the truck was in the garage for 3 years. I had bought a Fitech Ultimate EFI system for it but I wanted it running so I got a Holley dual plane, MSD 6LS box for it and thru an old Qjet on it I had on the shelf. It ran fantastic, so good it's still is wearing that mixer. I had another 5.3 and a 4.8, I went thru them quick so a couple of my friends had motors for their rides. After riding in my C10 they both opted for the carb and with all of us being older than dirt they were both very happy because they understood the carbs and could work on them, , the 4.8 got a Holley 590 Truck Avenger and the 5.3 got a new Edelbrock AVS. They weren't looking for the most power, just a reliable engine to replace the worn out small blocks they both had under the hood. I still have that Fitech system on my bench, I also have a 2009 4.8 long block I picked up for 200 bucks and a World Class T5 under the bench. The '88 S10 that is in the driveway doesn't have an engine so I see a match made in heaven there, I'll use that Fitech system on it just because I have it but IMHO for everyday drivers those carbs work just fine and they aren't lacking in power in any sense of the word.
Yes. Test the Quadrajet!
Yes. Ace's efi throttle body E85. But someone has to make a better intake.
Carburetor is so much easier if you know what your doing. Case and point my wife surprised me with a newer harley for my birthday a couple years ago. Only bike I ever had that still has stock exhaust cause it use to be $100 set of pipes and ten dollars worth of jet kit. But now it's at least $500 for pipes
and an additional $400 for a tuner
If im not mistaken, gmpp's distributor conversion front cover kit has a mounting pad for a mechanical pump and a eccentric that bolts on the cam's timing chain sprocket
good info
@@richardholdener1727 and it might be due to dirt track regulations for ls engines...
I bent an axle on my 8.8 fox body rear end. I think it went a high 130 60 ft. time that night.
It all depends on what you can afford also.
In thinking tat with fuel injection. You have to tell it what to do. But with a carburetor it does it on its own. Providing proper calibration?
Actually a little curious about the different options for ls carb intakes I have seen them dirt cheap $130 or so on Amazon. And it would be intresting to see what kinda difference between them there is
For fun how about running a side draft carb on the truck manifold? Then test the TBSS with a carb to see if it's better
Fuel distribution eould be horrible. He once cut up the top od a tpi plenum and bolted on a carb.
I would like to see a 800 Quadrajet
What up Mr Dyno 👑
Hey Richard man i missed a good live dam work getting in the way lol would a dual plane you have for sale would it be good for a blow thur setup im undecided on efi or card for my turbo ls build it. It will be mainly a drag and drive set up 1200hp is the goal and i cathedral heads I'm going to use
I heard someone say port-injected manifolds vs carb/tbi manifolds flow better due to there not being fuel to take to take up plenum volume. Or some variation of that theory have any validity?
that is the case with direct injection
Are you following Eric's videos on the LS cam challenge?
I'm aware
Are these low carb or no carb ls diets?
Perfect video!
I have a 5.3 LM7 with 862 heads. Here is what im thinking. Edelbrock duel plane with an Edelbrock AVS carb. Truck torque cam, Shorty headers, MSD spark control.
Stock rods and bore. Maybe a stall converter but it is a daily driver. Not a racer and will sometimes tow a 4k trailer.
Will it all work nicely together?
yes-I would pick long tubes over shorty headers, but that will all work
@@richardholdener1727 Forgot to mention Flat top pistons also. I don't mind running 93 pump gas either if i need to.
Have you come across bad fuel distribution on a carb lS intake manifold?
NOT JUST ON LS MOTORS
@@richardholdener1727 yes
Hey Richard I know I'm a little late to the party here but do you know if I can run my ls using a holley Projection system and the msd 6010 for ignition? I know that may not sound like the most ideal setup in the world lol, just trying to use what I have. Thanks in advance
I DON'T KNOW IF THE PROJECTION WILL ACCEPT THE SIGNAL FROM THE MSD-BUT IT MIGHT TAKE THE TACH OUTPUT
Do you still have the dual plane intake and msd for sale
no sir
Jet boats run a 5.3 ls with carb. 525 horse. They will get 100 mph.
Will I have problem running a 78 mm throttle body on my .5.3 LS with Porte had mile Camshaft or do I need a big throttle body
for what intake?