I have a '94 trans am equipt with a LT1. I've heard great things about these small blocks. My LT1 doesn't even break the tires from a dead stop. I'm thinking of put a Holly 750cfm double pumper. This will do alway with the ECU. A nice HEI and a ignition this should hit a lick

Anyone have suggestions

 

The LT1 holds little worth over a gen1 if you scrap the injection. The downsides of what you want to do are covered weekly here. Mostly just the ignorant want to do this and some are just to lazy to learn about injection.
The 94 is cheap and easy to reprogram and in injected form will be superior to a carb, the fueling, spark and tranny control is much more precise adjustable and accurate.

 

Anyone have suggestions[/QUOTE]


Probably the best thing to do with your car is to fix whats wrong or at least properly diagnose it first.... It's possible that your problems are with the engine itself & not the electronics.... so even if you reeeealy want the carb you should go through the diagnostic process to find out what the real problem is anyway.... theres no point into putting that work into a hurt motor if that's what your problems are. Keep in mind that if you have an automatic you'll also have to deal with the electronically controlled trans issues. If you ever want to sell the car you may have a hard time getting decent money for it with the injection removed unless you run into a knucklehead like me

Carb'd LT1's do run great...... just like anything else I now have a carb on my 79 Z28 (w/ LT1) which I had Accel DFI on for awhile. If you do go the carb route... (& personally I would not with a 94 Trans Am unless you were building a race or custom car of some sort)....the 750 DP would be a little too much... a 650 is about right... especially if you get a BG Speed Demon.. I can't say enough good things about Barry Grant carbs... & theyre not too expensive either.

 

If injection is better than a racing carburetor then why do you see carburated 350's with average heads and cams putting out 350hp. Keep in mind my LT1 won't break the tires with a .323 rearend

 

My LT1 with 105k miles and a 2.73 rearend will smoke the tires 'till they dissipate. Something's wrong with your car. Do you seriously not realize that?

This post is really stupid.

 

jeez, and most people just try to get their car to have enough traction to not spin the tires.

but you want to break the tires loose? buy a bigger stall converter, or learn how to drop the clutch.

maybe a tuneup would help?

 

yeah, you definitly have something wrong if you cant brake the tires loose. it should smoke em all day long. maybe not without powerbraking a little, but it should still break loose off of a stop light and kick 'er sideways.

 

Mine's stock and I can break 'em loose at 30MPH. Last year it surprised me on the highway when it shifted from 4th to 2nd at 60MPH. Broke 'em loose then and just about sent me into the side of an on-ramp. And all I have done is CAI, Headers, and a yearly tune-up...........

 

I got a 97 z w/ 2.73s and i got good G-force kdsw's. I can easily spin them whenever I want, Id have to agree that you may have something wrong. Definentally do a tuneup.

 

I have a mild heads cam setup and i put 380 to the wheels.


Just because your car wont spin the tires doesnt mean your not making anypower.

 

If carburetion is so much better than injection then why do LT1s put down 400 at the wheels with a budget heads/cam package?

Claiming that you'll get more horsepower with a carb on the same manifold is just ridiculous. The only reason to go carbureted is if your car is track only and you want more options on the intake, plus injection gets really expensive at high hp levels. The torque gains advertised on the carbureted LT1 manifold are because the intake runners are longer. So by running a carb you'll be giving up gas mileage, driveability (especially if you do heads/cam), and emissions.

If you've got something wrong with your car you need to fix the problem, not throw parts at it.

 

You can see the same thing with a well tuned EFI set up

What myself & others were getting at is there is something wrong with the car that switching to a carb may not solve for you. You may have electronic problems, but then again you may have problems with compression etc..... A decent running stock LT1 will have no problem at all blazing the tires. If you want to keep the FI there are plenty of people on here that can help you with trouble shooting it & getting it back into good running condition.

I like carbureators too although you will find people here who dont. If you prefer carbs & are not concerned with resale value & don't need to go through emmisions tests go for it! After all it IS your car & you have every right to make it the way you want it to be. Even with the GM dual plane manifold a stock LT1 has a nice amount of power & with the carb intake you will pick up a bunch of low end torque due to the longer runners as GreenDemon mentioned.

If you have specific questions about converting your car to a carb feel free to PM me with them.... I'd be happy to help as much as I can

 

I just got a tune up and my car will blow the tires off if i powerbrake it. It will not kick sides or break loose after its rolling a little. It isn't throwing codes either.

If all of you are against the idea, how should i upgrade the motor.

 

My car is the same way. If i am on any kind of GOOD pavement and just take my foot off the brake and slam the gas it will barly spin Usally not at all. But if i power brake or on ****ty pavement then it will light them up.. Also when it dont spin it bogs down and sounds like its missing...???...

 

Ohh yeah just did a tune up Plugs, wires, and fuel filter...???...