I'm planning on buying a 1985 Camaro 2.8 V6 and am wondering if anybody knows if it's more economic regarding fuel consumption than a 350 TPI.
FACTS if you have, please.

 

my best friend had a 92 RS 3.1L Auto and got about 18-20 combined city highway

 

My 2.8 fuel injected with the V6 fuel injection mod on this forum and k&n filter and flowmaster gets around 29mpg freeway, maybe more. And the last time I checked with just normal driving it was at 25mph. Though if yours is a carb it might not get that good.

 

I get around 25 with normal driving

 

Not to sound like too much of a jerk here, but, what would you expect? A 350 is twice the size of our V6 engines, do the math. Of course it gets worse mileage. Not just because the same fuel tank is feeding 2 more, larger cylinders, but it's also pulling more weight due to increased engine, accessory, and fluid mass (more oil and coolant in the engine).

I've hit 30-31 MPG highway with a code 45... Took years to get there.

 

^This, an engine is an air pump, think about it, a 5.7 is twice the displacement, which means it requires more fuel and air to fill the cylinders, everything but displacement being equal, the larger engine will ALWAYS consume more fuel. And yeah, weight is also a factor, not to mention driving habit, a the gas pedal of a 350 is gonna be a bit tempting at time. Also don't take this as meaning it will get half the mileage, you have to consider that much of the energy is wasted away and that this is a constant.

 

Way back when I cared and took note, I got 25+ driving like I stole it with a 2.8 T5 combo. Gas was only like $1.30 a gallon then too. [I member as if ultra 94 was $1.50 or less id buy it]

don't really watch it anymore, as its well beyond my V8 car that gets 10-12 on a good day.

I just enjoy putting 5gallons of gas in the Bird and having a half of tank that last forever.

5gallons in the V8 car is 1 drive around the block

 

i get about 22 on the highway with my foot in it and 27 to 30 straight hwy traveling 65-70mph ignition timing safely maxed and code 32 (EGR) and due for oil change...cooling system service...maybe even an ignition tune up as well which was done last january...straight piped to the muffler...

 

Thank you guys for all your anwers!
Talk of the engine working as an air pump, two cylinders more to feed etc:
I get 25 mpg moderate highway cruising with my 1957 Pontiac powered by a 1987 GTA 350 cu in TPI engine.
Of course, with a voluptous body like that, the mileage suffers real fast if I drive it hard...
Compared to a german Ford I owned powered by a 121 cu in (2000ccm) V-6, which never got me more than 20 mpg.
You never know for sure...
The V-8 makes more power and torque as it sucks in more air and gas, so a lot of the difference is in the induction efficiency, rear gears etc.

 

Key words in your statement being "Ford" and "20 MPG"... Ford. They circled the problem.

 

I'm getting literally 15 right now on the second check and I can't figure out WHY. Any ideas guys? I can't find threads on my car which is a 2.8L V6 Berlinetta. read my profile to get an idea about the car. This is getting annoying so any help is appreciated.