better gas mileage

Tleg93 · Post by **Tleg93** » Sun Mar 20, 2005 4:41 pm

I stopped being lazy and calculated my numbers. I'm actually getting more like 21mpg.

LaureltheQueen · Post by **LaureltheQueen** » Mon Mar 21, 2005 2:36 am

i'd very much like to visit you... with a fuel truck to buy gas with

tris91ricer · Post by **tris91ricer** » Mon Mar 21, 2005 7:11 pm

^LMAO. I'm so glad subarus didn't come in diesel.. it's so pricey now!
I just about talked my uncle's roommate into a WRX early this morning (1am) and the selling point was that it runs on 92, fairly cheaper than diesel, and probably gets better mileage, especially in a stickshift.

evolutionmovement · Post by **evolutionmovement** » Mon Mar 21, 2005 11:37 pm

A diesel Subaru would probably get high 30s or more.

Steve

scottzg · Post by **scottzg** » Thu May 19, 2005 8:50 pm

Here's somethnig wierd-- i just averaged 26mpg on my last tank, doing the same sort of driving as usual (short trips with a heavy foot and some hills runs) Normally i get about 21-22 for the same sort of tank.

tris91ricer · Post by **tris91ricer** » Thu May 19, 2005 9:05 pm

waxing/waning 02 sensor?

Tleg93 · Post by **Tleg93** » Thu May 19, 2005 9:12 pm

I'm thinking that my own gas mileage could be helped by a new O2 Sensor, Purge canister, sea foam, better cat, and maybe a better grounding situation.

tris91ricer · Post by **tris91ricer** » Thu May 19, 2005 9:19 pm

uh-huh! The ground mod helps, and if things go my way, i may be the first to experiment with the grounded 02 sensor on an NA (3 wire bosch!) I need to track down a new purge canister, or do the resistor mod to it. I'll be having a custom cat-back system made, as well, so I expect a few gains not only in top-end power, but in MPG, as well. Oh, and there's headers on that setup, too.

)
*!!burble burble!!*

Tleg93 · Post by **Tleg93** » Thu May 19, 2005 10:07 pm

I'm leaning that way too with the exhaust. I think the cat in the downpipe must be plugged up. Oh, I noticed that my O2 sensor has three wires, is this normal? I didn't do it.

vrg3 · Post by **vrg3** » Fri May 20, 2005 4:53 am

3-wire oxygen sensors aren't grounded; one wire is for the signal (which is grounded through the body) and the other two are for the heater. Our stock sensors are 3-wire sensors.

4-wire sensors are grounded. So are 2-wire ones, but they're fairly rare.

tris91ricer · Post by **tris91ricer** » Fri May 20, 2005 6:46 pm

Shit.

vrg3 · Post by **vrg3** » Sat May 21, 2005 2:03 am

You could try grounding a 3-wire sensor by wrapping some wire around the sensor and securing it with a hose clamp. That's how I'm grounding the probe for my water temperature gauge.

QuickDrive · Post by **QuickDrive** » Sun May 22, 2005 3:10 pm

I am also leaning toward a new Downpipe.

My mileage has been horrible lately..

Of course, just 2 days ago I found that I"m leaking fuel at the lines under my back seat on the drivers side..

So once I get that fixed tomorrow I'll be shopping for a relatively cheap DP

LaureltheQueen · Post by **LaureltheQueen** » Mon May 23, 2005 2:19 am

hmmm... just got to thinking... Would it be a good idea to get a water temperature gauge for the awic system to monitor how well it's working?

evolutionmovement · Post by **evolutionmovement** » Mon May 23, 2005 5:03 am

I was going to do that when I was going to be going AWIC. It would be a good thing to help experiment with setups, I'd think also.

Steve

vrg3 · Post by **vrg3** » Mon May 23, 2005 4:10 pm

Yeah, I was planning on trying to implement one somehow (two, actually, to monitor inlet and outlet water temperatures). It seems like it'd be easier to plumb than an IAT sensor but could give information that has similar utility.

The problem is finding a probe that responds fast enough.

Tleg93 · Post by **Tleg93** » Mon May 23, 2005 5:14 pm

QuickDrive wrote:I am also leaning toward a new Downpipe.

My mileage has been horrible lately..

Of course, just 2 days ago I found that I"m leaking fuel at the lines under my back seat on the drivers side..

So once I get that fixed tomorrow I'll be shopping for a relatively cheap DP

I noticed you have the same car I have. I just got a reasonable DP on ebay that has the correct bend and it was only $120.00 with ceramic coating. It will need bunged though.

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better gas mileage