Does anyone know what difference air temp makes in power production? I've read some posts where people don't want to put a FIPK on because of air temp. Does that mean more power in winter? I've put on a k&n fipk and was wondering if it would be worth the work to try and get it some cooler air. Honestly, I am skeptical that it would make much difference.

 

Greetings!!

Foster, check this thread out, it may help you:
https://www.f150online.com/f150board...ML/001325.html

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2000 4X4 Lariat SuperCab
5.4 Triton
Two-tone black on silver
All options except LS differential

MODS so far:

-Westin step bars (powder coated matte black)
-Lund bug shield
-Gentex electrochromatic rear view mirror
-Cabin filtration kit
-Superchip
-Stull Billet Grill
-Flowmaster Force II catback (series 50 SUV with duals out the rear)
-Line-X bedliner

MODS to come:

-K&N or AirAid FIPK kit
-Mickey Thompson Challenger 16" wheels with 295/75 BFG AT KO's
-4.10 gears (still thinking about this one ...anyone have any input?)
-LS diff or locker of some sort once they are available..
-A.R.E. LSII or Ford HarleyDavidson tonneau cover

1995 Eddie Bauer Bronco
1988 Mustang GT

 

For a guestimate, air density decreases about 1% for every 10F rise.

For a vehicle/ECU that can sense air density the ECU will inject ~1% less fuel which will result in ~1% less power. That's the theory anyway. In reality, fuel delivery probably doesn't compensate for small changes in air temp because the ECU doesn't have the resources to do it.

For a vehicle that doesn't read air density, fuel delivery does not vary. The vehicle will run slightly richer. Depending on a number of factors, the fuel burnt may be more or less.

Either way, the total power lost depends entirely on the power you started with. For any manufacturer to say 11 degrees equals 1hp is silly. (If they make an example of a specific engine, that is fine).

Mike

 

Thanks Guys. I was just trying to figure out how much of a loss air temp can create and it doesn't really seem like enough for me to worry much about. Of course it is related to air density, I feel kinda stupid for not realizing that.

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1993 F-150 SWB Supercab 4.9l 4 speed auto w/ OD, 3.55 gears, K&N fipk.

Next comes the cat back (Gibson Swept Side) and probably an order to Mike T.