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Loss of power due to mods?

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Old Dec 19, 2005 | 05:18 PM
  #16  
Warrtalon's Avatar
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Originally Posted by x838nwy
I am interested to know why the re-tune is needed? Surely the intake doesn't make that much of a difference? I know you should re-tune for best possible results, but surely it's not a must in this case?

I'm not saying you guys are wrong, but with just the intake and the BOV I don't see anything drastic that would desparately need a tune. I'd look at the bov and it's setup first perhaps?
Wow, where have you been, man? This is one of the most commonly-known and discussed things in all of EvoM. We aren't suggesting a tune just so he gets the most power out of his mods. We are saying he needs a tune to account for the Injen Intake (BOV is recirculating, so it's not an issue), which should not be used on an untuned car. You really haven't read any of the thousands of threads where we say not to run an aftermarket intake untuned, especially one that replaces the MAF pipe? The MAF readings get thrown off by the turbulent airflow, and the AFRs get thrown out of whack.

I've seen you around a lot, so I'm surprised you haven't noticed.
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Old Dec 19, 2005 | 05:18 PM
  #17  
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Thumbs up

Originally Posted by JDM_EVO_RS
So i just got some new parts. Injen intake and up pipe, GReddy type s BOV, down pipe, test pipe and APEXi N1 exhaust. as well as a GReddy TT and Profec B BC. why does my car seem slower? Do i need to Re-Flash the ECU? and does anyone know the stock boost setting on the new Profec B because it is in total % of Boost the Stock Turbo charger can handle?
I kind of have a similar problem in the past by adding tons of mods. I had a WRX which I add a bigger turbo, bigger injectors, bigger intercooler, full Turboback,headers,UTEC computer and the list goes on and on.

My issue was that I was under the impression that I had much more power due to the fact that I keep reading on the forums all this" magic" HP from full stages from different vendors/tuners.

Specifically speaking of TurboXS, their UTEC is their stage One. Their TMIC is their Stage III, their full exhaust with Up-pipe is their so called stageII, I had all of that plus twice more mods, in fact I had even more mods than www.Dyno-comp .com stage V which cost more than $6000 and assured you a 0-60 in about 4 sec flat and 1/4 mile in around 12sec flat... yeah, what ever

I was wrong, you might end up getting a slower car, I gained a 69whp after a tunning on a Dyno Dynamic Dyno, that was just from the tunning itself.

My car was running super rich before the tunning, flames from the exhaust,black smoke,huge turbo lags, etc, etc.

So yes indeed my friend, all the mods can make your car run like **** when you are not tuned for it.. Believe me on that one bro!!

Last edited by fromWRXtoEVO; Dec 19, 2005 at 05:26 PM.
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Old Dec 19, 2005 | 07:32 PM
  #18  
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Originally Posted by Warrtalon
Wow, where have you been, man? This is one of the most commonly-known and discussed things in all of EvoM. We aren't suggesting a tune just so he gets the most power out of his mods. We are saying he needs a tune to account for the Injen Intake (BOV is recirculating, so it's not an issue), which should not be used on an untuned car. You really haven't read any of the thousands of threads where we say not to run an aftermarket intake untuned, especially one that replaces the MAF pipe? The MAF readings get thrown off by the turbulent airflow, and the AFRs get thrown out of whack.

I've seen you around a lot, so I'm surprised you haven't noticed.
Oh darn. I somehow honestly thought he said he had a Trust intake. I wouldn't have replied if it was the Injen, since I am not familiar with the part. I know people who use the Trust (Airinx) kit and have no problem at all.

About the bov setup, I was referring to stuff like proper installation, springs, diaphragms etc.

Thanks for the info Warrtalon...
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Old Dec 19, 2005 | 07:38 PM
  #19  
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From: Long Island, NY
Originally Posted by x838nwy
Oh darn. I somehow honestly thought he said he had a Trust intake. I wouldn't have replied if it was the Injen, since I am not familiar with the part. I know people who use the Trust (Airinx) kit and have no problem at all.

About the bov setup, I was referring to stuff like proper installation, springs, diaphragms etc.

Thanks for the info Warrtalon...
Trust intake? I've never heard of that, nor have I seen one person on EvoM who uses it. You know multiple people who have a Trust kit on Evos? Btw, it has nothing to do with the quality of the kit. The Injen is top quality...but any intake like it will throw off the MAF readings and require tuning.
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Old Dec 19, 2005 | 09:17 PM
  #20  
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Yup. They're called Airinx and are available as a stock replacement or hemispherical type.

http://www.trust-power.com/04gracer/airinx_b.html

Sort of yellow foam filter, dry I think. It's probable sold under the name Greddy, or Airinx so something, but it's fundamentally a Trust product.
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Old Dec 20, 2005 | 06:18 AM
  #21  
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I did a search and no one on EvoM uses it. The filter is absolutely heinous, and there was only one reference where an Evo owner asked about it. The rest of the references were regular Lancers and a bunch of Gruppe-S advertisements selling a Greddy FMIC. I don't think it's as "trust"worthy as you think.
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