Little something I fabbed up!
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Do your engine (and yourself) a favour.
1. Remove it.
2. Put the stock intake back on.
3. Do some reading on the risks of modding the intake on 04+ engines.
4. Hints for Search function: lean conditions (with no CEL set).
5. Another hint - MAF transfer function.
6. Good luck.
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In case you don't know how to use the search here's a quick summary of why people are telling you to do some research.
In the '04 and up F150s there have been many cases where the truck runs lean directly from the factory. Running lean means there is too much air (or not enough fuel, depending how you look at it) in the engine for it to function properly. By adding a CAI (cold air intake, essentially what you've put on your truck) you run the risk of leaning out your Air to Fuel Ratio even more. This can result in higher temperatures in the engine and can result in serious engine damage.
Most of the aftermarket intakes you see for sale have been tested and are designed with that problem in mind. Some intakes, like the 3.25" and 3.5" AirForceOne require special tuning to the truck's computer to add more fuel to compensate for the additional air that's now able to enter the engine.
If you leave your intake on without taking it to be dyno tested, you run the risk of destroying your new truck. It ain't worth it to pick up 5HP.
Good luck!
- NCSU
In the '04 and up F150s there have been many cases where the truck runs lean directly from the factory. Running lean means there is too much air (or not enough fuel, depending how you look at it) in the engine for it to function properly. By adding a CAI (cold air intake, essentially what you've put on your truck) you run the risk of leaning out your Air to Fuel Ratio even more. This can result in higher temperatures in the engine and can result in serious engine damage.
Most of the aftermarket intakes you see for sale have been tested and are designed with that problem in mind. Some intakes, like the 3.25" and 3.5" AirForceOne require special tuning to the truck's computer to add more fuel to compensate for the additional air that's now able to enter the engine.
If you leave your intake on without taking it to be dyno tested, you run the risk of destroying your new truck. It ain't worth it to pick up 5HP.
Good luck!
- NCSU
#14
Originally Posted by ROB281
that looks sweet, I read in another thread that as long as the intake tube is no more than 3" you won't need a tuner to change the A/F ratio.
It's also MAF placement that is crucial. It looks like he also moved the MAF? Help me out here..
Best to go get the air/fuels measured....
Last edited by MGDfan; 04-10-2007 at 04:45 PM.