redFLcobalt

just wondering what you guys think the max tire psi would be for an 06 LS 5 speed. its my econo daily driver. i really dont get more than 34 mpg and i run the car strictly at 70-75 mph on interstate. my drive is about 90 miles total a day and 87 of it is highway lol. thank in advance

halfj99

wish i got that milage, i drive about 20 miles a day all interstate (except for like 1 mile) and get 30mpg... all 65mph(except that one mile) 06 ls 5 speed as well

redFLcobalt

i am just saying that the best i get is 34 mpg. overall i get 30 mpg over a tank of gas @ 400 miles

FuriouS

34lbs.

no more, no less.

Mikey851

The recommended pressure is 32 psi. I would only increase from that pressure by a few pounds as stated above.

Xavipheus

Yeah I get 20mpg and i've been driving like grandma lately, its really starting to **** me off

denn454

iTrader: (1)

I run 35. there isn't much benefit going above 32 really.

if you want fuel economy take off the intake muffler thing. thats an easy 2-3 mpg.

redFLcobalt

what exactly is this "intake muffler thingy"?

halfj99

intrested as well/\

i brought my moped home from my parents for any in town driving, Hello gas milage!

killah_thug08

i alwayys thought intake made u get better gas milage

denn454

iTrader: (1)

if you take off the inner fender well on the passenger side there is a long horn shaped thing with 2 big boxes to act as sound baffles. the lower one is also to help keep water from coming into the intake, but unless your driving through 2 feet of water its not much of an issue anyways.

its a 20 minute job to take off, I'm sure someone here has done a write up on it, if they haven't someone should have.

braineater

i get 24mpg all city beating the hell out of my car. i am sure i could get 27mpg city if i didnt drive like an *******

redFLcobalt

i live in florida. it rains a lot. not sure if taking the baffles off the intake is going to be worth anything on fuel milage versus the potential to bring water up in the intake.

btw, you feel there is a gain with pulling any "restriction" out of the intake box when we are dealing with a 2.2L n/a motor? i am looking for efficiency not peak hp.

OniMirage

32 around

RaineMan

An intake, header, and exhaust package will not only make your 2.2 faster and better sounding... but it will increase your fuel mileage as well.

You won't gain enough mileage out of the parts to make up their cost... but if you were gonna mod anyways there's another reason to add to the list.

I'm getting ~26MPG on my Stage 2 SS/SC on an all city commute where my speeds range from a 20MPH crawl to 65MPH.

Stl06LS

Can't believe they stuffed this thing in the inner fender well.



I replaced it with this.

ironkoijak

if you wanted to, you could drop your speed down to like 65 that would help out a bit,
remember best speed for fuel economy is 55mph, so the faster you go over 55 the less mileage youre gonna get

joeworkstoohard

taking out that resonator won't make any MPG diff.

redFLcobalt

i am not interested in modding for power(sorry fellas i know most are here for that). i also like my car to be quiet. i have a 99TA that i take out and beat on. was just wondering about fuel economy. i wish i could go 65-60 mph but in FL on the interstate where the limit is 70 and most are going 80+ that is a rescipe for death lol. i have noticed on a few roads that are that speed, my economy is crazy high. like 37-38 mpg.

OniMirage

speed plays a factor but gear ratio would ultimately dictate where your car is in regards to rpm with the current gear. To add to that wheel weight and tire pressure would play on this as well.

joeworkstoohard

where in florida?

if you're looking for real bang for your buck, get taller tires and lighter wheels. it'll help a few.

mkulrey13

iTrader: (39)

go the speedlimit. use the A/C on 45+MPH roads and use windows on <45MPH roads.

redFLcobalt

i have roll up windows and live in FL. i use the AC everywhere. i live in the tampa area

Tomtwtwtw

Lowering your car will also help your fuel economy, although only the tiniest of bits. At least your car will look better, too.

denn454

iTrader: (1)

I saw about 2-3 mpg increase removing the intake thing, and it seriously won't be an issue with water unless you go through about 2 1/2 feet of standing water(with or without the piece you have bigger problems at that point). the inlet will actually be moved up about a foot higher, it will be at the bottom of your air filter box, you will suck in a little hot air which will help with fuel economy a slight bit. water will seriously not be an issue, the cabin will flood before the intake will be an issue. you will be safe.

I went with the gmpp touring exhaust, I got 3mpg out of it, but at $500 it will take me a long long time to see a return on that investment, probably not a good bet for you.

I'm going to get some flexiable rubber aviation hose and reduct the intake from the throttle body to the air box to see if i can get some gains there, I'll post my findings.