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A/F ratio with Injen CAI

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Old Mar 5, 2010 | 03:25 PM
  #16  
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Have you guys not looked at his #'s at all?
He is not lean by ANY means what-so-ever!

His numbers would be horrible in a naturally aspirated car, but deliciously rich in a turbocharged car. Take a peek a the first post...thats right, have a good look. The only number that is even remotely close to lean is 12.5 @ 2k RPM. That isn't even full boost!

How can a company thats been around for 10 years survive by selling products that will cause engines to lean out so much as to burn up pistons or cause harm?! I would LOVE to see a single case where an Injen intake has caused a catastrophic failure. Please, show me. Until there is you have no concrete proof of Injen being dangerous.
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Old Mar 5, 2010 | 03:31 PM
  #17  
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How can a company be around for 10 years while selling a product that does nothing like the Tornado or the magnetic fuel line or the ionized bracelet? There is a market for everything out there, it's existence and persistence is not proof of anything. I have a hard time trusting an intake that works by essentially cheating the stock ECU, that is my issue with the product at hand. Injen likes to claim these big gains, and it's fans are glad to repeat it but in essence the Injen intake is mechanically tuning the car. I'd feel safer actually tuning the car. I'd be willing to bet that if you took an Injen intake and compared it to any other intake, allowing for tuning, the gains would be nearly identical.
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Old Mar 5, 2010 | 03:37 PM
  #18  
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I will admit that their "claims" are out to lunch, and what you just said is true.

Doesn't mean their product will cause "safety" issues.

PS - I dont run a CAI, never believe in them.
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Old Mar 5, 2010 | 03:39 PM
  #19  
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I agree that it's unlikely for an intake to cause a catastrophic engine issue but every bit counts right?
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Old Mar 6, 2010 | 01:41 PM
  #20  
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Needing a tune after installing CAI has been proven and disproven by many people on this forum and others. All I can say is OP I would NOT bother with a tune. Other people considering a CAI, once installed, TEST your AFM and make a decision from there.
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Old Mar 6, 2010 | 06:09 PM
  #21  
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Originally Posted by lancer0220
as you read in the other thread about hte evo maf tube and cone filter you will be fine with no tune, this has been proven already.
I have been using this setup since I bought the car, and back before I tuned the car it didn't cause any troubles.

I think the problem here is not all cold air intakes are the same. Some give a larger pipe including the maf housing. Others have a stock size maf housing and just allow use of a cone filter and have smooth internal pipe rather than giant rubber accordion hose like we have stock.

The ones that have a larger maf housing will need a tune 100% of the time. The ones with a stock size maf housing will benefit from a tune, but can probably get away without it.

Keith
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Old Mar 9, 2010 | 08:36 AM
  #22  
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Originally Posted by ambystom01
How can a company be around for 10 years while selling a product that does nothing like the Tornado or the magnetic fuel line or the ionized bracelet? There is a market for everything out there, it's existence and persistence is not proof of anything. I have a hard time trusting an intake that works by essentially cheating the stock ECU, that is my issue with the product at hand. Injen likes to claim these big gains, and it's fans are glad to repeat it but in essence the Injen intake is mechanically tuning the car. I'd feel safer actually tuning the car. I'd be willing to bet that if you took an Injen intake and compared it to any other intake, allowing for tuning, the gains would be nearly identical.
I guess maybe I don't get what your saying. You think the Injen CAI "tricks" the ECU and allows more air to enter without the ECO knowing? So having low 11s AF numbers at full throttle isn't correct? Man I guess Injen is damn good, they even tricked my wideband.
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Old Mar 9, 2010 | 09:00 AM
  #23  
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Originally Posted by sunshdw
I guess maybe I don't get what your saying. You think the Injen CAI "tricks" the ECU and allows more air to enter without the ECO knowing? So having low 11s AF numbers at full throttle isn't correct? Man I guess Injen is damn good, they even tricked my wideband.
From what I've read, Injen allows a bit of air to bypass the MAF sensor thereby leaning out the mixture. Take off the Injen intake and see what the AF ratios are.
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Old Mar 9, 2010 | 10:45 AM
  #24  
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Originally Posted by ambystom01
From what I've read, Injen allows a bit of air to bypass the MAF sensor thereby leaning out the mixture. Take off the Injen intake and see what the AF ratios are.
this is what they do.

theres a pipe inside near the maf sensor that allows unmetered air to flow through.
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Old Mar 10, 2010 | 08:59 AM
  #25  
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Originally Posted by lancer0220
this is what they do.

theres a pipe inside near the maf sensor that allows unmetered air to flow through.
So if there was extra unmetered air going into the motor, wouldn't my figures be lean? So this tells me two things either bone stock RAs run massivly fat or the extra air theory is not accurate. Maybe it's different on other brands
I'm not here to spur a flame war I just it would be handy to post something like this.
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Old Mar 10, 2010 | 10:00 AM
  #26  
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The figures would be leaner, not necessarily lean. Turbo cars always run rich as hell from the factory.
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Old Apr 15, 2010 | 10:55 AM
  #27  
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question about this intake...is says we have to move the trans cooler? will that harm the tranny?
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Old Apr 15, 2010 | 11:19 AM
  #28  
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Originally Posted by sofly1990
question about this intake...is says we have to move the trans cooler? will that harm the tranny?
Yes you have to move the cooler about 3-4 inches to the front. They supply the brackets to do so. No it doesn't hurt the trans
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Old May 6, 2010 | 09:12 PM
  #29  
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i have a numb question. For sure, Injen is a very reliable performance company. I know the Injen CAI can be run without a tune. My question is if i run a base tune like by stage 1 cobb, could i still run the Injen CAI? Please help out.
Also can any post a video for the Injen CAI for the 09-10 ralliart thanks
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Old May 6, 2010 | 11:18 PM
  #30  
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I believe that on Cobbs site is states that the stage 1 tune is for the factory intake only
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