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Old 09-01-2003, 08:46 PM   #1
Homemade WRX
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Default what kind of gas mileage are the WRX engine swaps getting?

Hi, I have already swapped the engine and am getting fairly bad gas mileage. I have hooked up the fuel pump controller and it doesn't seem to much better. Please le me know what kind of mpg you guys are getting.
Thanks, Micah
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Old 09-02-2003, 12:02 PM   #2
ciper
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Which WRX engine?
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Old 09-02-2003, 12:19 PM   #3
AKGC8
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I get about 250 miles to the tank with my US WRX swap. Works out to about 17 mpg. I've got an MBC, uppipe, downpipe and drive it pretty hard.
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Old 09-02-2003, 08:10 PM   #4
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anyone else? that sounds similar to my gas mileage but I don't drive that hard but once in a while.
sorry for not specifying that its a US spec EJ205 engine

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Old 09-02-2003, 09:09 PM   #5
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not good at all. I noticed while cruising and keeping respectable revs and just normal hw cruising i can get similiar gas mileage to stock. But it seems like i'm always filling up. Of course i drive on boost alot and it's hard not to, but still it's not good at all, price you have to pay i guess huh.
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Old 09-02-2003, 09:23 PM   #6
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yeah I guess so. It's sort of a bummer but hey my car is quick enough to beat a Camaro so I'm happy
I wonder how the WRX on SCC's Ultimate Street Car Comp got an average of 28 mpg. I can only imagine that it is a high efficiency MAP on his ECU.
thanks, Micah
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Old 09-02-2003, 10:32 PM   #7
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I have an '02 WRX engine in my '99RS w/ manual trans. I get 20-24 mpg. About 300 miles before the gas light comes on. I'm told once I get the ecu reflashed my mileage may improve a bit too.
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Old 09-02-2003, 10:49 PM   #8
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Yeah I paln on getting XS's piggy back, but in the meen time I wish my gas mileage was as good as yours because this is still my commuter car.
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Old 09-02-2003, 11:27 PM   #9
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If I stay out of boost I get about what Craig W does. I just rarely stay out of boost when accelerating so I don't see that to often(not even full boost all the time, usually accelerate at about 7-8 PSI unless I'm in a hurry).
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Old 09-07-2003, 12:43 AM   #10
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My STi engine got 33mpg last time I filled up. I'll keep track of it to see how that continues.
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Old 09-07-2003, 07:08 AM   #11
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my 96 OBS wagon has an STI ver V in it and the first couple of months i would average about 14 mi/gal !! no joke..really. of course thats cause i was drivin it like a madman. since then it has pretty much settled into about 20 mi/gal. tho i have the sti short gear ratio tranny which i believe lowers the gas mileage a point or two.

-Lou
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Old 09-07-2003, 01:09 PM   #12
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Garface you drive like a punk getting 33mpg, lol. Take that beast to the track. Also are you getting any boost spikes with your 3'' no cat exhaust, i know the v7's had problems with boost spikes and now with my 2.5'' jdm downpipe i'm seeing 20psi in 4th gear and 5th gear is the same or worse.
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