Carburated ls1 camaro
Carburated ls1 camaro 
03-01-2009, 03:27 PM
#2
Yeah..I've seen one.
It'was an abomination. A hacksaw cut cowl..& other ghetto-rigged POS traits.
If you plan on keeping tags on it & you deal with smog inspections,it's pretty much a no go.
An Ls1 Camaro is NOT an 87 fox body 5.0.(an engine originally developed with a carb.)
Don't ruin the car.
It'was an abomination. A hacksaw cut cowl..& other ghetto-rigged POS traits.
If you plan on keeping tags on it & you deal with smog inspections,it's pretty much a no go.
An Ls1 Camaro is NOT an 87 fox body 5.0.(an engine originally developed with a carb.)
Don't ruin the car.
03-01-2009, 03:30 PM
#3
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Ok i was just wondering i have a 4inch hood so i know it would clear and i dont have to do smog checks i was just wondering what if any performance gains i would get
03-01-2009, 04:06 PM
#5
Guys who have wild combinations with lots of boost, etc can exeed what even a FAST can flow & become a restriction..So they will swap on carb style Wilson or Vic Jr.
They run that in conjuction with an elbow bolted on the carb mountiong pad.
LSx carb compatible manifolds also have bosses that can be machined to accomodate fuel injectors..So they lose the resriction ,but they stay EFI.
The 4th gen F-body was the designed from the outset with EFI..As opposed to the early 3rd gens which were carburated.
So to back date a 3rd gen wasn't that big of a deal(it was still shade tree sacrelege on TPI motor)
The LT1s were a close cousin to an engine that had accomodated a carb from the factory ,the small block chevy...So the idea of a carb'd LT1 in an engine swap type set-up wasn't that big of deal, either
The LSx was never developed with a "wet flow" manifold or heads.
The 4th gen f-body itself was engineered from the outset to operate with all of those electronics for a reason.
Carb'd LSx belong in swap applications (they do run OK), not in cars that were originally LSx equipped, unless you plan on installing a window net & racing it down at the local dirt track.
They run that in conjuction with an elbow bolted on the carb mountiong pad.
LSx carb compatible manifolds also have bosses that can be machined to accomodate fuel injectors..So they lose the resriction ,but they stay EFI.
The 4th gen F-body was the designed from the outset with EFI..As opposed to the early 3rd gens which were carburated.
So to back date a 3rd gen wasn't that big of a deal(it was still shade tree sacrelege on TPI motor)
The LT1s were a close cousin to an engine that had accomodated a carb from the factory ,the small block chevy...So the idea of a carb'd LT1 in an engine swap type set-up wasn't that big of deal, either
The LSx was never developed with a "wet flow" manifold or heads.
The 4th gen f-body itself was engineered from the outset to operate with all of those electronics for a reason.
Carb'd LSx belong in swap applications (they do run OK), not in cars that were originally LSx equipped, unless you plan on installing a window net & racing it down at the local dirt track.
Last edited by BYE RICE; 03-01-2009 at 04:24 PM.
03-01-2009, 04:22 PM
#7
It's cheaper/easier/more reliable to modify exsisting EFI arcitecture
than ripping it all out & trying to figure out what you need & don't need & what to bypass..& how your going to fire your plugs..If you have an auto,you will need a stand alone computer to run your 4L60e unless you want to install an older unit,like a 700R4 or a Turbo 400.
A six speed car I guess would be a little easier.
You will need a new fuel system with carb style fuel pump...& come to think of it..In order to fire the plugs in an F-body you would have to stay with a Coil near plug setup with an MSD/Edelbrock timing controller.
There's no room up front for the distributor (the only place that can be adapted to run one).
Keep the car EFI unless it's a full on tube chassis drag car..Then put a BBC in it.
Last edited by BYE RICE; 03-01-2009 at 04:49 PM.
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03-01-2009, 04:31 PM
#8
It's your car, man.
The only reason to do that is because you're tired of blowing up 4L60's.
TH350's have more aftermarket parts available & can be made stronger for cheaper.
But a basic TH350 isn't any stronger than modern 4L60/65's..
So slappin in stock one out of an mid 70's Cutlass wouldnt make the car any better.
Personally,I'm a big fan of overdrive.
The only reason to do that is because you're tired of blowing up 4L60's.
TH350's have more aftermarket parts available & can be made stronger for cheaper.
But a basic TH350 isn't any stronger than modern 4L60/65's..
So slappin in stock one out of an mid 70's Cutlass wouldnt make the car any better.
Personally,I'm a big fan of overdrive.
03-01-2009, 04:46 PM
#10
As far as carb tuning it is concerned, it's harder to get right (especially if your just starting out) than modern EFI.
You have to first of all,install a quality carburator(not the chrome Edelbrock on the shelf at Autozone).
At the minimum you would need a 770 Holley Street Avenger..Even better would be an HP or a Demon..Those are NOT cheap carbs...Then you get to screw with setting the idle, after that, jetting,float level,secondary opening rate,& plug reading..DynoTuning with a wideband helps alot..But at thet point,you might as well have stayed with EFI where tuning is done with a few strokes of the keyboard..
& since the car is now carb'd ,you have no knock-retard to save you if you get too carried away with the timing map that you dialed into the ignition controller.
You have to first of all,install a quality carburator(not the chrome Edelbrock on the shelf at Autozone).
At the minimum you would need a 770 Holley Street Avenger..Even better would be an HP or a Demon..Those are NOT cheap carbs...Then you get to screw with setting the idle, after that, jetting,float level,secondary opening rate,& plug reading..DynoTuning with a wideband helps alot..But at thet point,you might as well have stayed with EFI where tuning is done with a few strokes of the keyboard..
& since the car is now carb'd ,you have no knock-retard to save you if you get too carried away with the timing map that you dialed into the ignition controller.
03-01-2009, 04:51 PM
#11
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So whats the best cam i can run with stock heads and what would be the best intake.So far ive made my own ram air i just put long tube headers on and still figuring out what size exhuast i should run its got msd wires on it it got a k&n and thats it so far 13.15 at 106 with ram air then with the 150 shot it went 12.27 at 116 so what would it take from here to just get in the 12s with out the bottle
03-01-2009, 04:56 PM
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well if i went to a card i like holley street hp cause it has adjustable air bleeds wich help out alot on tunning the carb on my dads dragster i just know more about carbs then EFI ithats why im on here i love my Z i just want to to be one of the faster ones in rockford you know so i want help to go the right way with my z so thanks for the help you guys can give me
03-01-2009, 05:06 PM
#14
well if i went to a card i like holley street hp cause it has adjustable air bleeds wich help out alot on tunning the carb on my dads dragster i just know more about carbs then EFI ithats why im on here i love my Z i just want to to be one of the faster ones in rockford you know so i want help to go the right way with my z so thanks for the help you guys can give me
Read the stickies at the top of the various forums (like newbie tech)..If it's knowledge you want,you've come to the right place.
If you want to be "one of the faster ones"..
Remember,there's no replacement for cubic dollars!.
Fast,cheap,or reliable..Pick any two!
& of course,there's ALWAYs someone faster.
03-01-2009, 05:54 PM
#17
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im kind of partial but i just swapped a carb'd lsx into my lt1 body camaro. just fyi you can use factory intake pump, w/ adapter fittings to run an lines to an aftermarket aeromotive regulator that will convert hi press (efi) down to a low pres. system needed for a carb, and its a return style regulator as well.
it can be done, it isnt as simple as hooking up a laptop and changin values, but to each his own.
it can be done, it isnt as simple as hooking up a laptop and changin values, but to each his own.
03-02-2009, 08:06 AM
#19
And yes GM made the intake LS1 intake for fuel injection, Edelbrock made theirs for wet flow.
03-02-2009, 11:16 AM
#20
THERE IS NO ROOM IN A 4TH GEN F-BODY FOR A FRONT MOUNTED DISTRIBUTOR!
I've ******* seen one installed in on an LSX HHR swap back as far a 2006.
I know what the **** I'm talking about..Sorry if you didn't understand.
It's not to say they dont work in a wet flow application...It's just luck that they do.