Hey, ive got a '88 GTA and im trying to figure out how to get better gas milage. Do i need to get new intake, exhaust or what should i do? Thank you, -Austin

 

What kind of mileage is the car getting?

best fuel mileage can be assured if you properly maintain your vehicle.

Aside from the widely understood items like tire inflation, brake inspection, alignment, and efficient driving practices, there are some less obvious items that can affect overall mileage. Lubricant selection, effective evaporative controls, avoiding A/C use, maintaining the air filter, having an active oxygen sensor, using a lower octane fuel, reducing weight in your vehicle, and keeping the coolant warmer can all improve mileage. There are a lot of easy things that can be done to improve mileage.

 

I cranked my fuel pressure down from 46 to 42

 

how do you crank your fuel pressure down? and how much of a difference does it make? wouldnt it hurt your engine?

 

Also, make sure your timing is set correctly, ignition system works 100%, and your O2 sensor is working 100%. Hot moist intake air will also increase the mileage (think 90F days with 90% humidity, joy!).
Driver is probably 50% of the equation also. Keep the RPMs low, and throttle inputs to a minimum.
Use thin synthetic oil.
Over-inflate the tires some.
Get a manual transmission.
Windows up, AC off.
Walk or ride a bike if you can.
Bum rides from friends.
Quit smoking (saves money for gas).
Drink less, hehe (as I set down my beer to type).
Lose weight, hehehe (not saying you're fat).
Actually, I've been out of country for 1.5yrs, so no driving!!!!!! But it sucks not driving. I'd rather pay $1million/gallon to drive than to never drive. Sure I've been back 3 times for vacation, but still...

 

The thing with buying mods in the hope of better fuel mileage is that you have to do years of driving to see any savings from it. Plus, most mods that are made for better economy also make the engine more powerful, and there's always the temptation to USE that power. Especially in a car like a GTA.

I used to get decent mileage with my 88 GTA, I'd get between 18 and 20 if I did more highway driving and stayed out of the gas (hard to do!!!). I have a hard time getting that with my 4.0 Jeep, so it's relatively good.

I find that keeping tire pressure up, using the cruise control whenever possible, keeping it in a good state of tune, and sticking to the speed limit help out alot. Not speeding in a GTA is hard, but it'll save you some money at the pump. You can also coast as much as possible, and plan your stops and red lights. As soon as the light turns red, start to coast...if you're lucky, it'll be green by the time you hit the light. You burn the most gas getting up to speed, so avoid stopping.

I try to do all these things in my Jeep, basically I drive like a granny. Not fun, but at close to 3 bucks a gallon I have to. I know that this driving style is counter-intuitive to driving a T/A, but if you're worried about saving gas, there you go.

Hope that helps.

 

remove the V8 and drop in a V6...