Soooo.... I'm feeling pretty dumb, but is there a difference between a K&N CAI and a FIPK? it normally would make no difference to me, however, my recently purchased diablospprt has a program for K&N and K&N FIPK. I have a k&N typhoon cai installed.... I'm thinking I need to chose the fipk tune... but wanted confirmation.
FIPK vs. CAI
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On American Muscles site they sell the FIPK saying that no tune is needed. The way I understand it is DiabloSport's tune for the K&N is used for a higher than stock flowing CAI (the ones than note a tune is required). That tune will adjust for the higher volume of air coming in to the throttle body. The tune for the K&N FIPK would be more like the canned 91 and 93 octane tune that figure in the stock size airflow from the factory air box.
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I am not familiar with "FIPK" ; don't even know what it means. But . . .
The ONLY reason a tune is required for a different intake is if the mass air flow tube diameter is different from stock. This is because the larger diameter flows more air at a given velocity; the MAF sensor basically reads velocity and then the computer does math based on the tube diameter to covert to mass; then it commands the right amount of fuel for that amount of air. So if the tube is actually bigger than the computer is using for the math, then there is more air coming in than the computer calculates, it does not command enough fuel, and the car runs lean.
There is no tune needed to take advantage of more air coming in; the fuel injection system does that automatically and it does it all the time.
So, if the "FIPK" is just a different filter that goes in the stock intake, I don't know why a tune would be required. Maybe they just give you that option to confirm the intake.
There is a big difference in the 93 octane tune because 93 octane gas allows you to run a lot more timing advance. The pre-2010 cars were tuned for 87 octane from the factory. Make sure you are running 93 octane gas with the 93 octane tune, or you could get damaging pinging/detonation due to the timing advance.
The ONLY reason a tune is required for a different intake is if the mass air flow tube diameter is different from stock. This is because the larger diameter flows more air at a given velocity; the MAF sensor basically reads velocity and then the computer does math based on the tube diameter to covert to mass; then it commands the right amount of fuel for that amount of air. So if the tube is actually bigger than the computer is using for the math, then there is more air coming in than the computer calculates, it does not command enough fuel, and the car runs lean.
There is no tune needed to take advantage of more air coming in; the fuel injection system does that automatically and it does it all the time.
So, if the "FIPK" is just a different filter that goes in the stock intake, I don't know why a tune would be required. Maybe they just give you that option to confirm the intake.
There is a big difference in the 93 octane tune because 93 octane gas allows you to run a lot more timing advance. The pre-2010 cars were tuned for 87 octane from the factory. Make sure you are running 93 octane gas with the 93 octane tune, or you could get damaging pinging/detonation due to the timing advance.
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Fuel Injection Performance Kits (FIPK)
No tune needed because this kit will flow more air than the stock airbox, but not enough to cause a lean condition. The FIPK dramatically reduce intake restriction as they smooth and straighten air flow.
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