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Old 03-09-2014, 01:42 PM   #1
subies rule
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Default Do i need a tune if i get my iwg ported?

Alright so heres the deal i have a 2010 wrx with invidia catted dp and invidia n1 race and im getting some boost creep and boost spike when it gets really cold out.. I was wondering if porting the iwg will fix this 100% and if i will need a protune after doing this.
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Old 03-09-2014, 06:31 PM   #2
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Fixed mine and yes
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Old 03-09-2014, 09:06 PM   #3
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Aaah ****! I was hoping to just port it and call it a day..
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Old 03-10-2014, 01:10 AM   #4
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Def need a tune. Wastegate duty cycle should be adjusted to accommodate the change in air volume.
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Old 03-10-2014, 03:19 AM   #5
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Is this something that is easy to tune myself?
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Old 03-10-2014, 03:35 AM   #6
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Originally Posted by subies rule View Post
Is this something that is easy to tune myself?
Based on the fact that you had no idea if it needed to be tuned or not, I would say no ... this is not something you can do.

As for whether it will fix your boost issues or not ... Well it might depending on how much air you are flowing.

My advice would be to go EWG and know that it definately will be resolved.
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Old 03-10-2014, 03:38 AM   #7
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Haha alright fair enough
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Old 03-10-2014, 03:39 AM   #8
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I suppose i could give the ots hwg map a try maybe
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Old 03-10-2014, 03:58 AM   #9
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I called a local shop called lachute performance and i spoke to julien and he told me that he was 95% sure it would fix the creep. He told me that going ewg would be a waste of money for no power gain.300 for porting 650 for pro tune. Vs 700 for up pipe plus ewg plus 650 for protune plus labour to install it
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Old 03-10-2014, 10:09 AM   #10
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Originally Posted by subies rule View Post
I called a local shop called lachute performance and i spoke to julien and he told me that he was 95% sure it would fix the creep. He told me that going ewg would be a waste of money for no power gain.300 for porting 650 for pro tune. Vs 700 for up pipe plus ewg plus 650 for protune plus labour to install it
I would stay far far far away from that shop if they think a properly tuned EWG setup wont make more power than its IWG counterpart..... not to mention 650 for a protune for a ported IWG is straight up robbery.
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Old 03-10-2014, 10:29 AM   #11
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I would stay far far far away from that shop if they think a properly tuned EWG setup wont make more power than its IWG counterpart..... not to mention 650 for a protune for a ported IWG is straight up robbery.
^^^^This

That's ridiculous that Lachute would charge full price for a tune on a ported iwg. I would definately go with ewg but consider a hybrid ebcs+mbc.
Op (subies rule) u should give Andy a call at neetronics in Oakville or go states side.
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Old 03-10-2014, 10:41 AM   #12
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Well it sounds like your off the shelf tune is already assuming that your wastegate can more more air than it already is. Porting it without a tune isnt going to hurt anything. At the very worst you'll just end up coming up short of your boost targets.
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Old 03-10-2014, 03:19 PM   #13
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If your with an OTS tune you could easily tune it yourself...

With the porting you will already shoot lower boost that what you are tuned at which is SAFE. The ecu automatically can adjust WGDC +/- 8% (percent might be wrong) to maintain target boost with varying conditions. You might get away with that working.

If it doesn't just go in and modify the tables by increasing everything on the high/low in VERY VERY SMALL increments. Like 2%. If you are using the AP then select the whole table hit m then do it by 1.02 should move you up a bit. Log boost error boost and throttle position. You want a small positive number for safety but as close to zero as possible.
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Old 03-10-2014, 04:42 PM   #14
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I would go with an external waste gate and get tuned for it.
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Old 03-10-2014, 04:48 PM   #15
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Quote:
Originally Posted by trev762 View Post
^^^^This

That's ridiculous that Lachute would charge full price for a tune on a ported iwg. I would definately go with ewg but consider a hybrid ebcs+mbc.
Op (subies rule) u should give Andy a call at neetronics in Oakville or go states side.


It's ridiculous they'd charge full price for a tune that is the same as any other full price tune would be?

Unless they did his original tune and are just adjusting it for the IWG, this makes no sense. Of course they'd charge full price.
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Old 03-10-2014, 05:01 PM   #16
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It's ridiculous they'd charge full price for a tune that is the same as any other full price tune would be?

Unless they did his original tune and are just adjusting it for the IWG, this makes no sense. Of course they'd charge full price.
If the op is on an OTS tune yes of course they would charge full price cuz now it's a protune and still $650 for basically stg2 tune is still way to much as anywhere else charges $400.

Likewise if the op is only needing to be tuned for the ported iwg and that is if he even needs to be tuned for it. Most tuners will just charge $60 to run a baseline to make sure everything is ok and then go from there.
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Old 03-10-2014, 05:04 PM   #17
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I would like to go to this "everywhere else" and "most tuners" magical land you refer to. Most reputable shops will not just screw around with some other tune that they had no part in, but will go through the entire and correct process of tuning. This is the correct thing to do, and you should expect to be charged accordingly.

If you want to cut corners like that on your car, by all means go ahead. Don't suggest it to others though. Shady crap like that is what makes trashed shortblocks so common in our wonderful community.

Remember, this all starts with an ASSumption that the wastegate flow is the cause of his boost creep. There are other possibilities there, and part of the reason you go through the tuning process is to make sure that everything is addressed in case there is another issue contributing to the behavior.

You can generally trust a shop like Lachute to also do a proper mechanical inspection prior to tuning, as most reputable tuners have made this a requirement since they're tired of people complaining that a tune blew their motor. However, you should also ask about this.
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Old 03-10-2014, 05:16 PM   #18
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Quote:
Originally Posted by ShadowIMg View Post
I would like to go to this "everywhere else" and "most tuners" magical land you refer to. Most reputable shops will not just screw around with some other tune that they had no part in, but will go through the entire and correct process of tuning. This is the correct thing to do, and you should expect to be charged accordingly.

If you want to cut corners like that on your car, by all means go ahead. Don't suggest it to others though. Shady crap like that is what makes trashed shortblocks so common in our wonderful community.

Remember, this all starts with an ASSumption that the wastegate flow is the cause of his boost creep. There are other possibilities there, and part of the reason you go through the tuning process is to make sure that everything is addressed in case there is another issue contributing to the behavior.
Huh!!/

Where did I say anything about cutting corners u fool.

$650 is ridiculous for a stg 2 protune and why do u think tuners charge a flat rate for stg 1-2 tunes as they have a base map they use on ever suby they tune and only have to make a couple subtle adjustments for each tune lol.
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Old 03-10-2014, 05:27 PM   #19
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Huh!!/

Where did I say anything about cutting corners u fool.

$650 is ridiculous for a stg 2 protune and why do u think tuners charge a flat rate for stg 1-2 tunes as they have a base map they use on ever suby they tune and only have to make a couple subtle adjustments for each tune lol.
AMS: Subaru WRX/STI 02+ Cobb AccessPort Custom Calibration - $575 for the first 2 hours ($300/hr. each additional if needed)
Rocket Rally: Cobb AP ProTune Custom Tune Bundle - $499 (discounted further /w Cobb AP + Rocket Map purchase) Add: Additional Dyno Tuning hours - $100 / hr + Dyno Fees - $140 / hour Add: Additional Road Tuning hours - $99/$79
IAG: Custom AP Tuning is $500.00 and provides up to two hours of AWD dyno tuning, which in many cases provides both a pump gas file and race gas file. Tuning is available for all Subaru WRX, STI, Forester XT, Legacy GT / Spec B turbo models.
P&L: Cobb Access Port Open Source AEM/Vipec/Motec 02-13+ WRX $500 (Includes PDI) $550 (Includes PDI)Only available for 02-07 WRX $700 (Includes PDI)

Your suggestion was "anyone else charges $400".

$650 is a bit high, but not that high. Also I'm guessing Lachute quoted CDN, so more like $575 or so USD, right in line with AMS.

It's far from "ridiculous" for a reputable tuner.
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Old 03-10-2014, 05:35 PM   #20
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I would go with an ewg but im kinda tight on money right now.. If i can fix my boost creep by porting i would go that way..also i suppose i could go with an e-tune after if i cant tune it myself to hit target boost...i dont know if i thrust an e-tune though but i do plan on modding a bit more and only want to pay for a protune once. I guess it cant be worst than ots tunes lol.. I did call another local shop and they charge 650$ for a road tune. And they said i shouldnt put any money into a small turbo like that..

Last edited by subies rule; 03-10-2014 at 05:43 PM.
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Old 03-10-2014, 05:40 PM   #21
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Originally Posted by subies rule View Post
I would go with an ewg but im kinda tight on money right now.. If i can fix my boost creep by porting i would go that way..also i suppose i could go with an e-tune after if i cant tune it myself to hit target boost...i dont know if i thrust an e-tune though.. I guess it cant be worst than ots tunes lol
E tunes are even cheaper, and as long as you specify that you only need wgdc adjustment for your current calibration due to overboosting prior to porting the iwg it should be fool proof. Theres no real need to change AFR/timing etc if all you want is to hit target boost
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Old 03-10-2014, 05:48 PM   #22
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Quote:
Originally Posted by ShadowIMg View Post

AMS: Subaru WRX/STI 02+ Cobb AccessPort Custom Calibration - $575 for the first 2 hours ($300/hr. each additional if needed)
Rocket Rally: Cobb AP ProTune Custom Tune Bundle - $499 (discounted further /w Cobb AP + Rocket Map purchase) Add: Additional Dyno Tuning hours - $100 / hr + Dyno Fees - $140 / hour Add: Additional Road Tuning hours - $99/$79
IAG: Custom AP Tuning is $500.00 and provides up to two hours of AWD dyno tuning, which in many cases provides both a pump gas file and race gas file. Tuning is available for all Subaru WRX, STI, Forester XT, Legacy GT / Spec B turbo models.
P&L: Cobb Access Port Open Source AEM/Vipec/Motec 02-13+ WRX $500 (Includes PDI) $550 (Includes PDI)Only available for 02-07 WRX $700 (Includes PDI)

Your suggestion was "anyone else charges $400".

$650 is a bit high, but not that high. Also I'm guessing Lachute quoted CDN, so more like $575 or so USD, right in line with AMS.

It's far from "ridiculous" for a reputable tuner.
Lol don't all these prices include the ap v2+protune by the looks of it/.

Neetronics is a reputable tuner plus once u go above stg3 then it's hourly. Andy didn't even charge me for my winter map as I was getting over boost cel's as the op was. Their customer service is excellent and years of experience. I'm pushing 60k now stg2 of hard miles on my suby plus track duty and still runs better than the day I bought it::
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Old 03-10-2014, 05:52 PM   #23
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Originally Posted by subies rule View Post
I would go with an ewg but im kinda tight on money right now.. If i can fix my boost creep by porting i would go that way..also i suppose i could go with an e-tune after if i cant tune it myself to hit target boost...i dont know if i thrust an e-tune though but i do plan on modding a bit more and only want to pay for a protune once. I guess it cant be worst than ots tunes lol.. I did call another local shop and they charge 650$ for a road tune. And they said i shouldnt put any money into a small turbo like that..
Take a proper log and send it to cobb and they will fix your tune for u and it's free!! Or at least the last time I checked.
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Old 03-10-2014, 06:14 PM   #24
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Really!?! I guess i will have to give cobb a call. Ill start by getting my iwg ported and will go from there thanks to all the replies very helpfull
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Old 03-10-2014, 06:26 PM   #25
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Really!?! I guess i will have to give cobb a call. Ill start by getting my iwg ported and will go from there thanks to all the replies very helpfull
We try lol
Its up to the user after that to follow sound advice (if its given, sometimes you gotta sort through the bull**** to find something useful). If they chose to ignore it oh well nothing lost on our end...
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