IS F (2008-2014) Discussion topics related to the IS F model

Taking one for the team to test out the new K&N intake.

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Old 09-12-09, 07:25 PM
  #76  
stick
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Has anyone actually dyno'd the KnN intake?

All I see is, "I got it and love it, it sounds mean."

How about a base dyno and then with the intake? Several people have it, but no one has dyno'd it.......lame.
Old 09-12-09, 10:39 PM
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MINO
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Originally Posted by stick
Has anyone actually dyno'd the KnN intake?

All I see is, "I got it and love it, it sounds mean."

How about a base dyno and then with the intake? Several people have it, but no one has dyno'd it.......lame.
And whats a dyno going to prove?
How many fan's a dyno operator can point at the intake?

I especially don't put value on intake dyno numbers. There are a couple of factors not accounted for on a dyno - making any type of results moot.

1) "Accurate" Load - Does anyone daily drive on a dyno?
2) Air pressure - at speed, pressure builds at the front of the vehicle producing a ram air effect into the snorkel.
3) Air turbulence - MAF/MAS sensors like smooth flowing air. The factory airbox has provisions that help smooth the airflow. The K&N does not. If the MAF sees turbulence at idle due to a fan, it could throw the fuel trims off during closed loop affecting your open-loop fuel mixture and power output.

A true measure of power is the trap speed. Dynos are for inflating egos.
Old 09-13-09, 11:42 AM
  #78  
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Originally Posted by MINO
A true measure of power is the trap speed. Dynos are for inflating egos.

Totally true... you could have a IS350 on a 1/4 Mile strip and have better times than an ISF

Its a drivers race from a dig...


But if your already going 50-70mph... you basically just need to smash the pedal to the floor...Then usually its going to be a WHP/Weight race...


But all drivers are different so this can't be done very accurately...

I think a Dyno is a bit more accurate, because MANY obstacles also play a role to determining trap speeds and 1/4 mile tests...


On a Dyno you can atleast "try" to do all dyno's to real life situations.. (don't dyno with the hood up).
Old 09-13-09, 12:11 PM
  #79  
gs400998
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Originally Posted by stick
Has anyone actually dyno'd the KnN intake?

All I see is, "I got it and love it, it sounds mean."

How about a base dyno and then with the intake? Several people have it, but no one has dyno'd it.......lame.
http://www.importtuner.com/tech/impp...s_f/index.html
Old 09-13-09, 02:25 PM
  #80  
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First I don't know why this old thread is brought back up. Everyone seemed to keep asking for Dyno numbers and I already Dyno'd the K&N few months back.

Also here in this Import Tuner ISF mod gains artical they Dyno'd 12.9 whp gains with the K&N intake where I dyno'd 12whp gains on mine. Very similair results.
Old 09-13-09, 03:56 PM
  #81  
FisforFast
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Does the 2-stage still work with this intake? That's what concerns me.
Old 09-13-09, 04:52 PM
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Originally Posted by FisforFast
Does the 2-stage still work with this intake? That's what concerns me.
The 2-stage function is a integrated function of the stock airbox. Therefore, the K&N intake takes away the 2 stage function.
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