A friend of mine has a 92 Camaro RS with a 305 and he says he is only getting about 15mpg. What would be the cause? He also said before that he was getting lower before he added auto tranny fluid. Could he be running rich or something?
Any help would be needed thanks

 

Just needs a tune up probably...

 

Maybe but the engine was rebuilt just a over a year ago with only 9xxxx miles after he bought it off his cousin. Ill tell him if he is ever AIM

 

It may have been rebuilt, but maybe they just re-did the longblock and kept all of the old equipment without freshening them up as well. My buddy had an '81 Chevy pickup with a 305 that he had a shop exchange the motor for a rebuilt one after 200K miles and all they did was give him a fresh longblock and transferred all the old stuff over without giving it a tune-up, therefore after a couple of weeks it was running like crap. Tell your friend to give it a complete tune-up=ignition module, coil, cap, etc.; clean the TBI or carb with some carb. cleaner, and change the air and fuel filters. The feedback, electronic carb., if equipped, are notorious for running crappy no matter what you do to them after some high mileage, so your buddy may have to fork over some loot to get a fresh one. Don't even bother going to a junkyard for one of those carbs. because you'll just end up with the same crap all over.

 

If he gets the carburetor rebuilt, and this is just because I was trolling through and noticed the carburetor thing, I had both carburetors on my 86 Prelude rebuilt for around $400 at Hayward's Auto...not sure exactly what street it was on.

I had called EVERYWHERE recommended for carburetor rebuilding, even Pinellas Carburetors (Duh, they do them right?!) And was turned away like I carried the plague. Of course that's because the 86 Prelude appearantly is a bitch to work on as far as the carburetors go. The Honda Dealership wanted around $1400 to put in new carburetors.

My uncle and his friend laughed a good hearty laugh when they saw the dual carburetor setup on the Prelude, saying they'd only seen that on some big trucks and such. Then they tested the engine and told me one of them is bad, because it's dumping fuel.

4-cylinder engine dumping fuel into 2 cylinders was getting 13 mpg. 4-cylinder engine with rebuilt carburetors running properly was getting 26 mpg.

Just a thought if you're looking for a place to get them rebuilt, I thought it was fairly cheap for 2 carburetors to be rebuilt. I thought the guy had gotten my request mixed up or something, so I had to be sure what he was going to do when I brought it in. Sure enough, 2 carburetors, ripped apart and reassembled or whatever they do, back to me within a week or so, and running like...well like it should!