HalfTonKid

what kind of gas mileage are you guys getting with these cars? highway and city.

also how much was your gas mileage affected by say an LT4 cam or 58mm Throttle body

sdm1234

iTrader: (8)

I'm not sure about the LT4 cam or anything, but with my once-stock LT1, my average was 18/25.

3pnt4maro

iTrader: (2)

i got 275 miles on this tank today..so i guess i averaged about 17 mpg and thats a blend of highway and city....with some showing out for my buddy who wanted to see what it would do..

98silverz28

iTrader: (6)

wow 275 miles per tank isnt bad at all!

most ive got is like...250

pyronotic138

iTrader: (1)

i just picked up my TA and got 35 mpg on the highway and 22 in town

crAzy95Z28

iTrader: (3)

185-200

thats with a 355 and a very BIG cam and a 3200 stall.

01WS6/tamu

iTrader: (37)

235-265

Captainofiron

iTrader: (1)

I usually get 320-300, thats an average of highway and city driving, it also depends on how heavy my foot feels that day.
Its a basically stock LT1, only minor bolt ons, and free mods.

urbanhunter44

iTrader: (1)

15ish in city, 27ish highway

98silverz28

iTrader: (6)

how in the hellllllllllllllll are you guys gettin 300+ miles per tank?

i usually cruise at 65-70 a4 w/ 3.23's

i drive about 65% hwy and im only gettin about 240-250 miles per tank

Kanes2413

iTrader: (9)

No way 250 Plus im mostely city and im filling up once a week and getting about a range of 220's more if i do highway 300 WTF and im all stock new air filter its a 93 t/a its that a diffrence but come on

StealthFormula

iTrader: (35)

I get about 10-11mpg but my O2's are fucked. I use to get 15ish before.

sdm1234

iTrader: (8)

because you have an automatic.

Captainofiron

iTrader: (1)

You just answerd yourself, you have an automatic, they use up more energy than a stick does, that is the reason you get worse gas mileage.
Its Science

98silverz28

iTrader: (6)

i understand that but having a 6spd cant add another 50-75 miles per tank. thats unreal

Captainofiron

iTrader: (1)

Well I also did some mods that would increase my mileage, alot of people put the underdrive pully kits on to get power but I did it to get better mileage. It gave me about 2-3 mpg, and I drilled out some holes in the baffles to my Ram Air, that gave me a little more, and I switched back to the original AC delco plugs, it gave me a few more miles.

Captainofiron

iTrader: (1)

Manual transmissions in good working order have a parasitic efficency loss of about 10 percent, while an automatic can have anywhere in the range or 15 to 25 percent. that is a big difference. and if your slushbox is in disrepair, even higher

98silverz28

iTrader: (6)

damn a4's suck lol

Kanes2413

iTrader: (9)

So what i hear is underdrive pulley with it get better what else i really dont want to be getting 200 hundred to the tank and i dont have a lead foot at all All my car has right now is a upgrade air filter off ebay and under 70k miles

Captainofiron

iTrader: (1)

The way to get better fuel mileage is get more air in and out for the same amount of fuel, keep your cars front end well aligned, keep your tires at the right pressure, run with the AC off if possible, let the engine get hot, the hotter it runs the better mileage usually, when I say hot i mean in the 195-210 degrees. other than that short shift its a stick and dont let the car idle alot. Change the oil regularly use synthetic,

thats everything I can think of, any other Ideas guys????