better gas mileage

Subaru-related topics that don't belong anywhere else...

Moderators: Helpinators, Moderators

crappyrice
First Gear
Posts: 71
Joined: Thu Mar 10, 2005 12:01 am
Location: toronto, canada

better gas mileage

Post by crappyrice »

HELLO, i am totally new legacy owner, just bought a 1991 legacy turbo, the one with the hood scoop, and its red, i really like it.

the only problem, well one of them is that its not exactly a honda civic when it comes to gas. and i am really really poor, so i was wondering what are the best and cheapest things i can do to get better milage, and mabye even a little more power.

i've been reading these forums for about a week now and i got some really amazing tips, so i know this is the perfect place to ask this.

so far i was thinging about a k&n air filter, becasue someone said i can get 1-3 mpg increase with it, plus its cheap.

second and last one is a underdrive pully, the one by unorthodox i believe, and it said 4-5mpg increase, but it costs much more.

if u have any idea , ANY, please let me know, if its cheap or not dont make any difference for now, i just want to know the options i have.
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

A good tune up is always the best soultion and possibly you're only one. A pulley won't buy you that much mileage. You can inflate the tires to a higher pressure and stay off the gas. New plugsa and wires are nearly always welcome (unless you get Magnecors, which don't wear out like the rest), and O2 if your mileage is worse than average.

Steve
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
crappyrice
First Gear
Posts: 71
Joined: Thu Mar 10, 2005 12:01 am
Location: toronto, canada

Post by crappyrice »

ok, well staying off the gas was always hard for me, so thats out of the question. especially in a turbo car.

what exactly is done in that tune up?

also, what will the the cost of the wires that u mentioned. cheap?

also what do u mean by o2?, do u mean the sencor?

and finally, what milage shold i be getting right now?

:P also, thats for the quick reply,
J-MoNeY
Fourth Gear
Posts: 1275
Joined: Sun Nov 16, 2003 9:15 pm
Location: Colorado

Post by J-MoNeY »

My pully + IC upped my gas mileage to 50 more miles a tank.
98 LGT
LaureltheQueen
Spelling Nazi
Spelling Nazi
Posts: 4644
Joined: Fri Aug 29, 2003 7:14 am
Location: Lynnwood, WA
Contact:

Post by LaureltheQueen »

invest in a good downpipe
Laurel Tuning Stage 15
92 Touring Wagon 5MT 16G
[quote="NICO I WRX U"]the streets are my track[/quote]
J-MoNeY
Fourth Gear
Posts: 1275
Joined: Sun Nov 16, 2003 9:15 pm
Location: Colorado

Post by J-MoNeY »

LaureltheQueen wrote:invest in a good downpipe
Does that actually help much?
98 LGT
THAWA
Knowledgeable
Knowledgeable
Posts: 6829
Joined: Thu Aug 21, 2003 7:44 pm
Location: Sacramento, CA
Contact:

Post by THAWA »

You're not going to get civic mileage with a lead foot.
Rio Red 90 Legacy LS AWD 174k
Liquid Silver 92 SVX LS-L 88k
[url=http://folding.amdmbpond.com/FoldingForOurFuture.html]Do you fold?[/url]

I'm on First and First. How can the same street intersect with itself? I must be at the nexus of the universe.
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

Or even with a helium foot.

I think I paid under $80 for the Magnecor wires. These cars eat other wires. Tune ups are just filters, plugs, and wires. Maybe cleaning the idle control if needed.

Steve
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Brat4by4
Stratified
Posts: 1608
Joined: Thu Jan 30, 2003 6:52 am
Location: NE Ohio

Post by Brat4by4 »

PCV valve. Diamond coilpack.

Tune-up. Italian tune up. Sea foam.
1993 WMP BC6 5MT EJ22T 9psi 3.9:1 213k 205/55R16

62.6 m/s @ 0.66 bar. Gotta love boost. :)
tris91ricer
Title Whore
Posts: 2692
Joined: Mon Dec 01, 2003 7:19 am
Location: Valdosta, GA

Post by tris91ricer »

Werd.
Get the Subaru oil filter, they're recommended.

When you free up your exhaust, you free up TONS of other things, including power and mileage. Get a downpipe (a good one) and continue it back to the muffler. Your car will sound great, and drive even better!
[b]'92 L Sedan[/b]
EJ20g 4.11 5sp LSD

[quote]e46 owners tend to be twats.
[/quote]
crappyrice
First Gear
Posts: 71
Joined: Thu Mar 10, 2005 12:01 am
Location: toronto, canada

Post by crappyrice »

what is a PCV valve and a Diamond coilpack., and how much do they cost.

also what is the differnece between tuneup and italian tuneiup.

what is the cost of a downpipe?
Subaru_Nation555
Third Gear
Posts: 819
Joined: Wed Oct 27, 2004 6:54 am
Location: Arlington, VA

Post by Subaru_Nation555 »

crappyrice wrote:what milage shold i be getting right now?
Well depeding on whether you have a 5-speed or a 4-EAT you should get anywhere from 15-17 mpg. When on boost alot it will really drop your fuel miliage. I think your best bet is a good tune and a conservative driving style. I don't think any turbocharged Subies get good city gas miliage
'06 Impreza 2.5i wagon
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

Italian tune up is when you drive the car hard. Acceleration burns crap out of the cylinders.

PCV - positive crankcase ventilation. It is on your intake manifold near the throttle with a hose going into it.

Diamond coil pack is an alternate part they used on our cars. If you don't have one, they can be found in JYs.

Steve
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Subaru_Nation555
Third Gear
Posts: 819
Joined: Wed Oct 27, 2004 6:54 am
Location: Arlington, VA

Post by Subaru_Nation555 »

crappyrice wrote:what is the cost of a downpipe?
A downpipe will run you anywhere from 150-400 dollars depending on the brand/type/condition. Since no downpipe will pit perfectly with the stock exhaust system, you would have to invest in a new mid-pipe if you went that route.
'06 Impreza 2.5i wagon
Tleg93
Fifth Gear
Posts: 2281
Joined: Sun Jun 22, 2003 2:52 am
Location: Williamsport, PA

Post by Tleg93 »

What is our fuel tank capacity? I'm at work and not anywhere near a manual.
--Scott--

1991 - Rio Red SS
Tleg93
Fifth Gear
Posts: 2281
Joined: Sun Jun 22, 2003 2:52 am
Location: Williamsport, PA

Post by Tleg93 »

Gah, nvm it's 15 gal. Knowing that, all you folks who say you're getting 20-30 mpg, are you actually getting 300 miles per tank @ 20 or 450 per tank @ 30mpg?
--Scott--

1991 - Rio Red SS
LaureltheQueen
Spelling Nazi
Spelling Nazi
Posts: 4644
Joined: Fri Aug 29, 2003 7:14 am
Location: Lynnwood, WA
Contact:

Post by LaureltheQueen »

I got quoted $680 australian for the downpipe that I want, the CES twin-dump pipe with the boost enhancer plate. That comes to just about $540 US today. It's currently one of the only things limiting me from upping my boost though.
Laurel Tuning Stage 15
92 Touring Wagon 5MT 16G
[quote="NICO I WRX U"]the streets are my track[/quote]
crappyrice
First Gear
Posts: 71
Joined: Thu Mar 10, 2005 12:01 am
Location: toronto, canada

Post by crappyrice »

thanks a lot guys, all this info really helped

and i like the iddea of a italian tune up, since i seem to be doing that all the time, without even knowing it, LOL
Brat4by4
Stratified
Posts: 1608
Joined: Thu Jan 30, 2003 6:52 am
Location: NE Ohio

Post by Brat4by4 »

15.9 gallon capacity. 60L to be exact.
1993 WMP BC6 5MT EJ22T 9psi 3.9:1 213k 205/55R16

62.6 m/s @ 0.66 bar. Gotta love boost. :)
professor
Third Gear
Posts: 832
Joined: Tue Jul 27, 2004 6:12 pm
Location: Providence RI

Post by professor »

I'll award a prize to anyone who can actually get 15.9 gallons in these tanks...so empty I'm scared to drive anymore, and filling it until I see it only gets me 13.5 in the tank...
That beer you are drinking cost more than my car
Brat4by4
Stratified
Posts: 1608
Joined: Thu Jan 30, 2003 6:52 am
Location: NE Ohio

Post by Brat4by4 »

I've got like 15.2 - but that's offtopic.

On topic - Don't forget water ingestion. You have to suck down enough to see smoke and stuff.
1993 WMP BC6 5MT EJ22T 9psi 3.9:1 213k 205/55R16

62.6 m/s @ 0.66 bar. Gotta love boost. :)
isotopeman
Second Gear
Posts: 291
Joined: Thu May 13, 2004 6:54 am
Location: Fayetteville AR
Contact:

Post by isotopeman »

If it's about saving money - drive less. I've let mine sit long enough for grass to grow out of the driver's and passenger's door sills. Currently, I fill up every two weeks in Russelville, AR (cheapest gas along I-40 between Oklahoma and W. Memphis) when it's my turn to make the drive between here and my girlfriend's place - 340 miles round trip. That's all the fuel I need, and I like it.
Depending on where you live though, it may not be so easy to do.
δ13/12C = -17.7 ‰
δ15/14N = 9.4 ‰
TDGKORN
First Gear
Posts: 198
Joined: Tue Sep 09, 2003 12:27 am

Post by TDGKORN »

there a gas station by my house that is messed up, so when its real cold the counter goes real slow but the gas comes out a normal flow. I filled up from empty yesterday for $6.50
92 legacy ss 4eat
tris91ricer
Title Whore
Posts: 2692
Joined: Mon Dec 01, 2003 7:19 am
Location: Valdosta, GA

Post by tris91ricer »

I'm so jealous.
[b]'92 L Sedan[/b]
EJ20g 4.11 5sp LSD

[quote]e46 owners tend to be twats.
[/quote]
crappyrice
First Gear
Posts: 71
Joined: Thu Mar 10, 2005 12:01 am
Location: toronto, canada

Post by crappyrice »

haha, lucky guy,

i live in canada where its cold as hell half the time, and that never happens
Post Reply