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Old 11-23-2006, 07:58 PM   #1
ENY169
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Member#: 125552
Join Date: Sep 2006
Chapter/Region: W. Canada
Location: Winnipeg, Manitoba CANADA
Vehicle:
05 legacy 2.5i wag

Default Disappointed with COBB AP stg 1, enginuity for me?

i bought the AP because i thought i was gonna get better gas mileage along with better performance. the motor was a lot smoother and felt stronger but my mileage really went down. i know i didn't buy an economy car but you would have to fill it up yourself and see how bad it is.

when i first bought it, i was surprised at the mileage i was getting. after the stage 1 flash, it flipped upside down. no matter how easy on the throttle or how smoothly i shift, it didn't matter. outcome was the same. i almost thought i was leaking gas because of how fast the needle went down.

my plan for the car is TBE and UPpipe. thats it. this is my first new car and i want it to last as long as possible without major unnecessary repairs.

so should i sell the AP and get a tactrix cable ? i'm sure there's a map out there specifically for the mods i plan to do. all i know is, these cars run rich from the factory and the fueling delay so that would have to be adjusted.
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Old 11-23-2006, 10:48 PM   #2
superbrew
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2002 WRX
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I don't have any experience with the AP, but the Tactrix cable is only 90 bucks, so you really can't go wrong. It will probably offer you much greater flexibility with future upgrades. There seems to be a growing number of people that are supporting open source tuning. I am sure you have already seen them but check out

www.openecu.org
www.osecuroms.org
www.enginuity.org

PS- I would hang on to the AP just to see how it compares
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Old 11-23-2006, 11:07 PM   #3
Clark Kent
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2004 WRX

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OP- I really don't think you have a clue how the AP is tuned or really works. Get a protune if you want to increase mileage, and tell the tuner what you want. With cobb, the turbo does come to boil faster and stronger, which smooths out the powerband, but that does cost fuel. My mileage did go down when I installed my mods. Its going to effect your city mileage the most. I used to get like 23-24 in the city, 27-28 hiway, now I get anywhere between 19-21 in the city, but still get around 26-27 on the hiway.

If you want to mod your car, you know what they say... you got to pay to play. You could always return your car to stock.

Ck
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Old 11-24-2006, 08:19 AM   #4
ENY169
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05 legacy 2.5i wag

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ok, how about this. since COBB OTS maps are rich, are there free maps available that i can download then upload to the AP ?

if/when i get the tactrix cable, what do i need to adjust in the tuning tables when all i want to do is lean out the mixture and get rid of the ol/cl fueling delay ?
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Old 11-24-2006, 09:11 AM   #5
Tea cups
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If you're looking for economy then maybe you should try Cobb's economy map?
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Old 11-24-2006, 10:03 AM   #6
Master2192
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Location: Roy, Washington
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98 2.5 RS
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Quote:
Originally Posted by Tea cups
If you're looking for economy then maybe you should try Cobb's economy map?
All their economy map does is set the boost targets very low and use alittle bit more timing. Not a very good economy map.

ENY169, if you do go the Enginuity route, ev3siv3 has some very good Stage 1 maps to start from. His boost targets are higher than even Cobb's Stage 2, but the main benefit is that he has the Closed Loop AFR set alittle leaner to stretch out the fuel mileage. I think the Stage 2 goes alittle bit leaner than that as well.

I am currently using the Stage 2 map default of 15.1 and the 04 WRX averages 27 mpg with 1/2 city and 1/2 highway. The car is an automatic, and it amazes me she can get that kind of fuel mileage with as much traffic she sits in. I only get 25 in my 2.5RS and before this reflash I always had better mpg than the WRX.
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Old 11-24-2006, 01:35 PM   #7
ENY169
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05 legacy 2.5i wag

Default

master - thank you for the reply! thats exactly what i was looking for. it looks like i'll be joining this forum. gotta sell the AP first.

thanks for everyone who replied!
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Old 11-27-2006, 03:54 PM   #8
Ziggyrama
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Going from Cobb maps to self tuning, there's room for improvement. Cobb maps are a good reference to see how others tune but I think you can do better. Cobb Stage 2 map modifies several maps but knowing what I know now, I can see how others can do better. The question really is whether you want to do it yourself or you'd rather pay someone else to do it for you?
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