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Old 07-30-2006, 09:22 PM   #1
Nemesis Digital
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Member#: 119579
Join Date: Jul 2006
Chapter/Region: South East
Vehicle:
2004 WRX Wagon
San Remo Red

Default Almost hit 400 miles on one tank.

This past week I flashed to Cobb Stage II 93OCT.

My mods are as follows.

Mileage 58k
2004 Wagon.
Up Pipe/ and Full 3" Non catted TBE
Stock Airbox (removed Typhoon)

My first tank of gas that I had with the new Stage II map I drove the car hard, EXTREMELY hard, and still managed 302 miles per tank. My next tank I drove conservatively and hit 380 on one tank. My car boosts well, pulls hard, and loves the stock airbox.

Is this out of the normal for most? I see people only getting aroudn 230ish a tank!!!
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Old 07-31-2006, 01:57 AM   #2
Bbasso
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Member#: 66235
Join Date: Jul 2004
Chapter/Region: Tri-State
Location: South Carolina !
Vehicle:
2005 WRX
Silver

Default

I have been able to get 33mpg, But avg about 25-28.
How many gal is the tank? I forgot...
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Old 07-31-2006, 01:51 PM   #3
bolderer
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Join Date: May 2006
Chapter/Region: South East
Location: Chattanooga
Vehicle:
06 protuned vf-34
wagon

Default

Quote:
Originally Posted by Bbasso
I have been able to get 33mpg, But avg about 25-28.
How many gal is the tank? I forgot...
15.9 in my 06. Think they're all the same.
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Old 07-31-2006, 05:28 PM   #4
avriette
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Member#: 115968
Join Date: May 2006
Location: washington, dc
Vehicle:
2006 Impreza WRX STI
Black

Default

We've been keeping records of every fillup. Interestingly, we're increasing in mileage steadily per tank (up to about 2,000 miles now), and we max out at about 270 per tank. We got about 300 on a long road trip from DC to philly (well, it's not *that* long).

I see the other posters are wrx's, mine's an STI, and I thought we were supposed to get worse mileage.
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Old 07-31-2006, 10:36 PM   #5
hondaeater69
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Member#: 60324
Join Date: Apr 2004
Location: a pillow.
Default

Quote:
Originally Posted by Nemesis Digital
This past week I flashed to Cobb Stage II 93OCT.

My mods are as follows.

Mileage 58k
2004 Wagon.
Up Pipe/ and Full 3" Non catted TBE
Stock Airbox (removed Typhoon)

My first tank of gas that I had with the new Stage II map I drove the car hard, EXTREMELY hard, and still managed 302 miles per tank. My next tank I drove conservatively and hit 380 on one tank. My car boosts well, pulls hard, and loves the stock airbox.

Is this out of the normal for most? I see people only getting aroudn 230ish a tank!!!

i've never hit 380, even on a full highway tank. of course i drive slightly above the speed limit too

and you got 300 when driving hard? i find that very hard to believe.
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Old 08-01-2006, 07:31 AM   #6
Rally_WRX1
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Join Date: Mar 2006
Chapter/Region: MAIC
Location: Maryland
Vehicle:
2004 WRX Sedan
All Wheel Driven

Default

It's kind of odd but my car has a stock gutted up pipe, godspeed downpipe connected to a blitznurspec r catback, with the cobb stage 2 93OCT and my gas mileage is crappy. I have only driven 65 miles and over a quarter tank is GONE. This 65 miles is also conservatively driven, I can't drive any more conservative then this, I'm in vacuum the entire time almost. I just thought that my car would get better gas milage then that, but hey I guess you gotta pay to play...
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Old 08-03-2006, 05:44 PM   #7
Student Driver
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Join Date: Jun 2004
Chapter/Region: SWIC
Location: AZ
Vehicle:
2002 2.5RS, AW
I can taste teh suck

Default

Well, it's not quite as easy to compare each other as you might think. Here are a few parameters:

1. Altitude has a strong effect. Less efficient engine so if you're a lead foot you suck down the gas, but easy drivers get better mileage. Typically, if you drive at WOT at sea level and high altitude, you will get better mileage but worse HP/torque numbers. So, if you want to get around at the same speed as you would at sea level, you use more throttle and therefore get less mileage.

2. Speed. If you have a 75mph speed limit (and drive at it or more ), your mileage will not be as good as one driving 55 or 65 (especially if tuned to build boost earlier). This hurts the 5 speed owners more than those with the 6 speed. I typically get 28 at 55-65, but 25 at 75mph. This is with varying altitude (1,500ft to 5,500ft).

3. Octane. If you run a higher octane number, you tend to get less mileage. If I run 91 octane around town, I can get about 22mpg. But, if I run a fair amount of E85 in it I can drop 2-3mpg. Now, the part that throws people off is if a car can't run well on a lower octane, it can have the same or even worse mileage than the higher octane due to timing being pulled and other dynamic ECU calculations.

Other things can come into play here, like the weight/drag of the vehicle, use of wider tires, tire pressures, and so on.
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Old 08-16-2006, 02:32 AM   #8
AllAWD
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Location: Alexandria, VA
Default

Quote:
Originally Posted by hondaeater69
i've never hit 380, even on a full highway tank. of course i drive slightly above the speed limit too

and you got 300 when driving hard? i find that very hard to believe.
I agree, I think "driving hard" is relative. I get close to 300 per tank in normal driving and around 230 when driving hard.
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Old 08-18-2006, 02:37 PM   #9
ggta
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Join Date: Mar 2004
Chapter/Region: SWIC
Location: prescott
Vehicle:
2006 wrx stg3+??
gray

Default

Quote:
Originally Posted by hondaeater69
i've never hit 380, even on a full highway tank. of course i drive slightly above the speed limit too

and you got 300 when driving hard? i find that very hard to believe.
I'm getting just a little over 315 just with a turboback exhaust and an intake. Thats driving hard.

About 280-300 without the turboback,

No AP yet.
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Old 08-18-2006, 02:58 PM   #10
chuckdez
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Join Date: Jul 2006
Chapter/Region: South East
Location: Fort Walton Beach, FL
Vehicle:
2005 STI Stage2.5
Obsidian Black Pearl

Default

Quote:
Originally Posted by Student Driver
3. Octane. If you run a higher octane number, you tend to get less mileage. If I run 91 octane around town, I can get about 22mpg. But, if I run a fair amount of E85 in it I can drop 2-3mpg. Now, the part that throws people off is if a car can't run well on a lower octane, it can have the same or even worse mileage than the higher octane due to timing being pulled and other dynamic ECU calculations.
I always get power MPG with lower octane. Living in the hurricane state, sometimes I'm forced to get 87 octane when no other fuel is available. I drive easier on the vehicle with lower octane and still produce worste MPG. Results are the same for my SC Benz and turbo Subaru.
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Old 08-18-2006, 07:17 PM   #11
subywrx
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Default

There is no way a WRX or any turbo car with 16 gal. tank can last 280+ miles with heavy driving. There's got to be something wrong or different with the car.
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Old 08-18-2006, 07:20 PM   #12
nate49509
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Location: Grand Rapids, MI
Vehicle:
'04 WRX
witty comment goes here

Default

Quote:
Originally Posted by subywrx
There is no way a WRX or any turbo car with 16 gal. tank can last 280+ miles with heavy driving. There's got to be something wrong or different with the car.
Your wrong. I've got 300 miles on a tank and thats with an auto-x included.

Nice numbers. On my next tank I'm going to see what I get with the STX map.
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Old 08-19-2006, 11:51 AM   #13
AllAWD
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Join Date: Apr 2002
Chapter/Region: MAIC
Location: Alexandria, VA
Default

I wish I could say that. In my '02 I rarely get 300 miles (max 26mpg) with my normal driving in stock form.

After my stage II upgrade I was having fun and got <20mpg.

I'm due for my 60k soon, so maybe I'll see the better mileage after that. I'm feeling that a heavy foot with lots of stop and go driving uses more fuel that just 1 auto-x plus nearly 300 normal miles.

Quote:
Originally Posted by nate49509
Your wrong. I've got 300 miles on a tank and thats with an auto-x included.

Nice numbers. On my next tank I'm going to see what I get with the STX map.
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Old 08-19-2006, 06:09 PM   #14
02WHITEDUB
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Member#: 96793
Join Date: Sep 2005
Chapter/Region: W. Canada
Location: Edmonton
Vehicle:
02 ProTuned TD04
Now with more clunks!

Default

My mileage has gotten consistently better the more mods I've done. I've logged about 80 tanks of gas so far...

Stock for 50,000km = 18-19mpg
Stage 2 for 30,000km = 19-20mpg
ProTuned for 4 tanks so far = 20+mpg

70% city
30% highway
2,000 feet

On highway trips I can get 29.5mpg
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Old 08-20-2006, 12:11 AM   #15
steve3364
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Member#: 122002
Join Date: Aug 2006
Location: Western Kentucky
Vehicle:
2006 WRX Wagon
Gray

Post

I always get about 300 miles per tank in my '06 WRX wagon, and have actually seen an improvement in MPG since going AP Stage 2 93oct, two weeks ago. The overall MPG is only 23-24 though since I tend to drive aggressively but mostly in the interstate (if that makes sense to some of you), "Straight stretches to air it out some".
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Old 08-31-2006, 01:22 AM   #16
some dude
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Vehicle:
06 WRX
CGM

Default

I got 32 mpg on a highway trip going 65 mph on a stock 06' WRX. That is the highwater mark for my mpg.
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