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Old 03-05-2006, 10:57 PM   #1
EAkrish
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Default UTEC Tuning, how safe?

I am running a aftermarket uppipe, a catted downpipe, and a 3" exhaust from there back. I also have a cold air intake and a txs bov-h. i recently got a utec and am gonna run the stage 2 base map. will i have anything to worry about ???



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Old 03-05-2006, 11:11 PM   #2
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It will run but not very well, especially with that cold air intake. Your gonna be really rich and have bad gas mileage. Try to get it tuned asap. The tune alone will net you around 20 extra whp.
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Old 03-05-2006, 11:13 PM   #3
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what about the stock setting?
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Old 03-06-2006, 10:53 AM   #4
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Help......!!!!
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Old 03-06-2006, 10:12 PM   #5
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??????
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Old 03-06-2006, 10:27 PM   #6
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The stock setting will run a stock map, so it would be like running without the UTEC. If you run the Stage 2 map until you get a chance to get a tune you should be fine.

Now the BOV-H will probally give you some problems. You should get a recirculating BOV. With a stage 2 setup that BOV s going to lose you more power then anything else. The reason is your ECU expects the air venting out the BOV to be plumbed back into the system not released into the air. So your ECU will think its missing air and run rich and stuff. Search there are a ton of BOV posts to explain this. Just use the stock BOV or get a recirculating valve, otherwise run that one until you get sick of losing power then go back to stock or something better.
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Old 03-07-2006, 03:59 PM   #7
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i am gonna run the stage one set up. i think i am gonna be fine.
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Old 03-07-2006, 09:12 PM   #8
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i went back to a sri and i am gonna run the stage 2. i will keep u posted
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Old 03-07-2006, 11:01 PM   #9
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ok ? i tried to upload a base stg2 map off txs site and the interface says," bad sum check, corupt map" ***????
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Old 03-07-2006, 11:23 PM   #10
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nevermind i am trading for a AP
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Old 03-08-2006, 11:26 AM   #11
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probably a good idea.
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Old 03-08-2006, 01:24 PM   #12
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do u really think so? i mean all my friends at subaru say this is a great system
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Old 03-08-2006, 02:12 PM   #13
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all of the heavily used ems solutions out there are capable of tuning to ~400 whp.

the question is, which one is best for YOU.

if you're having a lot of difficulty with the utec now, maybe a different solution is better for you.

fwiw i've been on a utec for over 2 years. it does what i need it to.
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Old 03-08-2006, 10:07 PM   #14
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I finally loaded the stg 2 map. car seems to run strong but then at higher rps seems to taper off..... any answers? i was thinking a boost issue with that stupied abc.
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Old 03-08-2006, 10:40 PM   #15
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So this is UTEC or AP? Did you RTFM? yeah you can take off that stupid ABC as it only allows you to run more boost....who wants that...
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Old 03-09-2006, 07:46 AM   #16
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I've been running Utec with Short ram, up&down pipe, 3" exhaust for 2 years, just recently upgraded to TXS TIMC for stage 3, the car runs great, acts stock under normal every day use and seems to pull harder then my friends with AP in stage 2 vs his up&down pipe, 3" TBE set up. I'm not a big fan of the reflash any way, so of course my opinion would favor what has worked so well for me for 2 years.
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Old 03-09-2006, 10:38 AM   #17
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Quote:
finally loaded the stg 2 map. car seems to run strong but then at higher rps seems to taper off..... any answers? i was thinking a boost issue with that stupied abc.
get it tuned...the base maps are fairly conservative. Make sure you take it to someone who knows subarus and utecs...Post up in your local section to find out about local tuners...
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Old 03-09-2006, 11:06 AM   #18
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Quote:
Originally Posted by EAkrish
nevermind i am trading for a AP
Why? because you dont know how to use the UTEC?

That bad check sum just means the map was saved in notepad.

Why go to a less powerful and complete and MUCH more limited EM??
You will need to lose the intake altogether with that AP.

Quote:
Originally Posted by EAkrish
I finally loaded the stg 2 map. car seems to run strong but then at higher rps seems to taper off..... any answers? i was thinking a boost issue with that stupied abc.
STock turbos dont hold boost very well on the top end. Try pushing the numbers up a bit higher where its tapering off. You may need to tune the fuel table in that area as well.
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Old 03-09-2006, 12:26 PM   #19
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Your stock set up reduces boost at upper RPM's, it's merely reduced in the UTEC set up as to how much it cuts back.

Like mentioned before, the stock turbo is very small, very efficient and isn't made to produce major horsepower, but better drivability.

With and upgraded turbo, VF22, VF29, VF34, and a tuned by a TXS certified vendor on a dyno, you will be glad you stuck it out with UTEC. There is a MY02 with Pinks, and VF24, only things I don't have, tuned, putting 350 to the wheels on race gas... he has the dyno chart to prove it. Typically this set up is good for 300-320 at the wheel on 93 I think. I can't wait to get mine tuned.
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Old 03-11-2006, 10:26 AM   #20
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ok, ok where do i start the adjustment for fuel at. can anyone email me a decent map for intake, bov, up and down and 3" to the back?? thanks for everyones help. i will try and stick it out. oh the email is EAkrish@gmail.com.
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Old 03-11-2006, 01:49 PM   #21
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Using someone else's map is not a good idea. Altitude, gas, condition of car, constant parameters, abc, temperature, all effect the tune. ESPECIALLY since you are using an intake and bov.

Don't adjust the fuelling unless you have access to a wideband o2 and know what you are doing. Same goes for timing, unless you have accurate EGT and datalog with a laptop.

If you DO decide to stick with the UTEC read the UTEC manual lots of times, and also check out Mick's tuning guide, also www.wrxhackers.com for more information.

http://www.pdxtuning.com/utec_tune_g...12_02_2004.pdf

The stage 2 basemap is OK to get started from, but running it all the time is not a good idea, it's VERY rich and wont make much more power for you than stock. It's also designed for 93 octane, you need to remove some timing if you are using 91 for example.

You need to datalog to see what the UTEC is doing, a good idea with the basemap to see if all is OK before you start spanking the car to see if it's faster with the UTEC Then work in small steps from there tuning the boost map and abc if needed to reach the specified psi targets for your stage. Then if you wanna tweak the fuel maps you need a wideband o2, tweaking the timing means keeping an eye on knock and your EGT, again done with a laptop and logger option #1


In summary if you want to tune with the UTEC yourself you need lots of patience and understanding of what you are doing. It's not complicated as long as you take baby steps, have the proper tools at hand like wideband and laptop for logging and enjoy doing that kind of thing (and are somewhat technically inclined) and learning how the car reacts to adjustments.

If you dont want to do the above, then stick with AP (and Streettuner down the road if you wanna learn at a later date to tune) or ECUTEK.

Hope this helps.
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Old 03-11-2006, 07:28 PM   #22
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thanks again, i think i might do that then, i think the AP is a good deal.
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Old 03-12-2006, 04:21 PM   #23
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any other suggestions?
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Old 03-15-2006, 09:11 PM   #24
EAkrish
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Default stage 2+ uppipe

so i am running this on my tbe, up pipe intake.

map page

Last edited by EAkrish; 03-15-2006 at 09:22 PM.
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Old 03-16-2006, 02:21 AM   #25
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As I said, running someone else's map is not good. Do you know what parameters or firmware version that map is for?

It uses open loop boost control for starters.
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