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Old 04-14-2005, 08:17 PM   #1
Propaganda
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Default Suggestion for ECU/Tune ?!?!

Hey guys, I got a 2002 WRX 5 speed, I had a question on what ECU or tune should I go with these mods. Thanks

HKS Downpipe
HKS Upipe
Borla Headers
Tanabe Turbo Catback exhaust
Injen Intake
Turbo XS MBC (Set at 15 psi)
I'm also looking for the cheapest if possible.

I was planning to get a BOV but with all this reading about how I shouldn't I'll probably save the money and get her tuned. I also live in Oregon so best gas I can get is 91 octane, Lately ive been putting Plus (89 octane) If anyone has any input on that. Thanks guys
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Old 04-14-2005, 10:43 PM   #2
scooterforever
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My opinion

1. ditch the intake
2. do NOT get a BOV. The stock one is fine at your power levels. I'm running 20 lbs of boost and am happy with the stock bov.
3. ditch the MBC unless you specifically tune for it with engine management. But with the stock turbo, you probably don't need it. If you are using it now... well... be aware of part throttle full boost.... it's an engine killer...
4. [this probably belongs in the engine management forum]

As for which EM, any of the big three will work just fine for that, Cobb AP, EcuTek, or Utec. They each have pluses and minuses, some are more flexible, some require a tuner, others use off the shelf maps, etc. Search and read on those three, though there are other engine management solutions.
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Old 04-15-2005, 01:28 AM   #3
zaxrex
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Wow, there was a guy with your exact setup asking the same questions in the EM and tuning forum.

Being a dick just seems to come naturally to me this evening, I'll appologize later.
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Old 04-15-2005, 02:25 AM   #4
akira02rex
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Cobb has a map for your EXACT mods...There is nothing wrong with getting an aftermarket BOV. Get one if you like the sound! My car came with one so why would I ditch it because some guy I don't even know says to ditch it because he runs the stocker at 20psi blah blah. There is a FAQ here on NASIOC for it, you should read it.
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Old 04-15-2005, 09:14 AM   #5
scooterforever
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Quote:
Originally Posted by akira02rex
Cobb has a map for your EXACT mods...There is nothing wrong with getting an aftermarket BOV. Get one if you like the sound! My car came with one so why would I ditch it because some guy I don't even know says to ditch it because he runs the stocker at 20psi blah blah. There is a FAQ here on NASIOC for it, you should read it.
"some guy"... funny. Don't take my word for it. Use the the SEARCH tool!!!

And by the way, Akira, if you like "the sound" of an atmospheric BOV, then you should understand that the "sound" you like so much, is a consenquence of the aftermarket BOV venting air that the ECU has accounted for, and based it's A/F calculations on, into the atmosphere.

Guess what? You're running rich. That means LESS power, and potential carbon buildup.

Have fun.

But don't take my word for it. Ask some of the guru's here.
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Old 04-15-2005, 09:16 AM   #6
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I would also like to point out that I clearly started my original post with the words "my opinion."
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Old 04-15-2005, 12:06 PM   #7
akira02rex
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Quote:
Originally Posted by scooterforever
"some guy"... funny. Don't take my word for it. Use the the SEARCH tool!!!

And by the way, Akira, if you like "the sound" of an atmospheric BOV, then you should understand that the "sound" you like so much, is a consenquence of the aftermarket BOV venting air that the ECU has accounted for, and based it's A/F calculations on, into the atmosphere.

Guess what? You're running rich. That means LESS power, and potential carbon buildup.

Have fun.

But don't take my word for it. Ask some of the guru's here.
Thanks for pointing that out. I already know all of this though
What you failed to mention is that when venting to the atmosphere you are only running rich in between shifts..not all the time; hence why the car will pop and fart in between shifts.
I think you failed to see my point though..Why would people just do whatever everyone else is doing? If that was the case everyone in the world would look exactly the same lol. People are going to be different and do different things man. If he wants the sound of the BOV then let him do it. He knows the consequences of running rich in between shifts and THAT will NOT kill a motor and I highly doubt it's going to slow you're 1/4 time down significantly.. If it does then give me proof of it. And while you're at it, show me proof of this decreasing horsepower..ALSO show me some carbon buildup pictures! I get tired of people theorizing on **** and never show me PROOF!
And if you didn't read his first part of his post he states:
Quote:
Hey guys, I got a 2002 WRX 5 speed, I had a question on what ECU or tune should I go with these mods.
Ok, so now why would the car be running rich from a BOV if he's tuning the car himself? Thanks for seeing my point, knew you'd come around!
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Old 04-15-2005, 12:11 PM   #8
SubyDuz
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I would go with UTEC and a Map selector that is what I run and I run consistent 1.1 bar all day long and I have similar mods just different brands, but I would get a different intake, probably a Perrin, just a suggestion. But the Utec is more tuneable for you area of mods. Good Luck with the car.
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Old 04-15-2005, 12:28 PM   #9
Matty
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Default Hey Propaganda...

Oregon premium octane is 92. You should be using "premium" not "plus", unless your adding some kind of octane boost.
Also if you are in Oregon you have a couple good choices..PDXTuning are GREAT tuners. You can also contact Rallitek, they are tuning using a unichip now I think. Both places know there stuff!
Whichever route you take spend the money to get your car tuned on a Dyno.You won't regret spending the extra cheese
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Old 04-15-2005, 01:29 PM   #10
Propaganda
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Thanks for the replies guys! I'm going to contact Rallitek and PDXtuning as soon as I get enough money (within the next 2 weeks) right now I'm leaning towards the Cobb AP since its the cheaper option, I think the Utec would run at least $1,000. Also is dyno tuning really worth it? Because it would be at least half the price of a reflash. I've decided to purchase a BOV after I get my car tuned and am still debating either to take out the CAI, if I do take it out I can pop my stocker back on with the K&N airfilter then I would sell the CAI for BOV I guess. Again thanks for replies guys! and sorry for posting in wrong section.
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Old 04-15-2005, 02:04 PM   #11
Matty
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Default Imho

Anything you do above and beyond stock you should think of "safe" gains..(especially if you are on a budget). Cheap(uniformed) gains now can mean a blown motor, clutch or tranny later!! Both Rallitek and PDXTuning will consult you on how to do the best gains safely.
I have your mods+ and have been running at 285+ whp for close to 50K miles. My EM is a reflash that was dyno tuned down on the Matrix Dyno, so my numbers are conservative. Talk to either Tim at PDX or Sean at Rallitek..They will steer you in the right direction.
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Old 04-15-2005, 03:44 PM   #12
scooterforever
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Quote:
Originally Posted by akira02rex
He knows the consequences of running rich in between shifts and THAT will NOT kill a motor and I highly doubt it's going to slow you're 1/4 time down significantly.. If it does then give me proof of it. And while you're at it, show me proof of this decreasing horsepower..ALSO show me some carbon buildup pictures!
Try this post. He was running an aftermarket BOV with a Cobb AP.

http://forums.nasioc.com/forums/show...carbon+buildup
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