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Old 03-20-2010, 03:31 PM   #15
wbt
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Quote:
Originally Posted by jtragolia View Post
So just to spell it out based off your previous dyno sessions, Injen resulted in a +or- off ...hp & ...torque? And airaid resulted in a +or- off ...hp & ...torque?
In a nutshell:

Injen = good power gain in both HP and TQ over stock
Airaid = as good as or less than stock intake performance
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Old 03-20-2010, 03:31 PM   #16
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Originally Posted by nachocheese View Post
So if we operate under the assumption that Airaid causes a rwhp loss, shouldn't your times have shown it to be slower with the Airaid on?
Yes.. as I stated months ago I did have better runs with just my MRT exhaust,
but the DA was not EXACTLY the same.

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Old 03-20-2010, 04:00 PM   #17
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Old 03-20-2010, 04:01 PM   #18
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Quote:
Originally Posted by wbt View Post
In a nutshell:

Injen = good power gain in both HP and TQ over stock
Airaid = as good as or less than stock intake performance
Good way of putting it!
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Old 03-20-2010, 04:07 PM   #19
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Originally Posted by devildoc View Post
You think I could have lost so much hp/tq with the airaid since I used 87oct...you loss less with 93 so I'm thinking that is a safe conculsion?
I'm trying purposely NOT to speculate... As I mentioned I didn't log any data... but in theory I could end up running more timing with 93 than you with 87... going to depend if your knock sensors were active and pulling timing...
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Old 03-20-2010, 04:42 PM   #20
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SCRMING- Thanks for doing this!

When you say stock box- do you mean absolute stock box? I know you did a slight mod with removing a portion of stock tubing, was your baseline done with absolute stock?

Just trying to understand...

thanks
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Old 03-20-2010, 05:09 PM   #21
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Please forgive my limited knowledge on engines, but is there any chance that the Airaid performs better with the stock exhaust? Does a less restrictive exhaust make the engine run leaner?
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Old 03-20-2010, 05:11 PM   #22
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SCRMING- Thanks for doing this!

When you say stock box- do you mean absolute stock box? I know you did a slight mod with removing a portion of stock tubing, was your baseline done with absolute stock?

Just trying to understand...

thanks
Joe
Good point!

My "stock" intake was not so stock! Not only did I remove the silencer, I also had the relocated IAT sensor... When we installed Injen I went back to the stock IAT sensor...

Now looking at my older dyno sheets it appears the resonator-ectomy did not make enough difference to actually show up on the dyno sheet.. so I would say that really made no change to the "baseline".

Now the IAT relocation maybe a different story... The IAT relocation showed up on the dyno. It showed an improvement of a couple HP/TQ... My thought is without the IAT relocation the "baseline" would have been a little less... so perhaps it would have closed the gap some between stock intake and the Airaid... not sure if it would have brought the Airaid up to even with the stock intake, but it might have been closer... Of course on the flip side it would have meant the Injen would have shown even more gains...
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Old 03-20-2010, 05:14 PM   #23
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Curious if you you reinstalled ur tune with the Injen and ran a Dyno?!
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Old 03-20-2010, 05:17 PM   #24
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Originally Posted by nachocheese View Post
Please forgive my limited knowledge on engines, but is there any chance that the Airaid performs better with the stock exhaust? Does a less restrictive exhaust make the engine run leaner?
Not unless your are like running open headers...While I have JBA shorty headers I'm still running the stock cats, stock resonators and MRT ver 2.0...

Also, based on my datalogs and mmrays13, the Injen retains the stock A/F, while the Airaid shifts the A/F to be a bit leaner. I observed the A/F shift in my car, as well as Airaid showing an A/F shift on their test car... So in this case it appears the Airaid itself is causing the A/F shift (leaner).
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Old 03-20-2010, 05:24 PM   #25
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Curious if you you reinstalled ur tune with the Injen and ran a Dyno?!
Yep... after we did the Airaid, i put the Injen back on and put the Trifecta tune in so I could collect some data for Vince, just so he double check it... My guess is he'll find there really is nothing more to tweak...
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Old 03-20-2010, 05:28 PM   #26
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Well that was cool of air raid to send a unit out no doubt. But in the end looks like I cant purchase the air raid cause the numbers don't support it. I am very curious why in there runs they see an increase and in yours you didn't see much. All I can say is that it is an interesting result. I really thought both CAI would be close to each other give or take a hp or so. Well.... A Injen it is then. Thx for posting up your results. I
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Old 03-20-2010, 05:51 PM   #27
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Scrming -

After your Injen Dyno run, do you think the numbers support Injen's claim of gain of 16 HP? I know your baseline wasn't on a bone stock model, but in approximation was their claim even close?
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Old 03-20-2010, 06:03 PM   #28
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Scrming,
You are the man, thanks for doing these test. Kinda of disappointing the Airaid is not performing, but mine is staying on. I don't want to give up the window washer bottle and I'm still having doubts on the placement of the filter that low to the ground. The car is still new and more CAI's are most likely on the way. Anyone heard if K&N has one in development or out yet? Anyway, thanks again. You are a great contributer to this forum and I have respect for what you have to say.
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