Horsepower and Gas mileage on my 2008 F-150?

Question

I have a 2008 F-150 supercrew. It has the small 4.6 triton. It's been a great truck..but a little extra power would be great!

How can I increase my output to the rear wheels without sacrificing gas mileage? Any help is good help! Thanks!

Answer 1

Since it runs on exhaust waste gasses, a turbocharger should yield horsepower and torque gains with none of the parasitic power loss imposed by superchargers.

And a lowering kit should help some with fuel economy because you will be reducing your frontal area and thus, aerodynamic drag.

Answer 2

If you value your warranty be careful> Ask the dealer what they will except or no>

Answer 3

Truth be told, the 4.6L isn't enough motor for a 2004-up F-150. The 5.4L does much better and gets about the same mileage. The 4.6L in the 97-03 trucks was adequate but the 04-08's weigh 800 pounds more. You could go for more mechanical advantage (I.E. new rear end gears) 4.10s would help. For the engine, there really isn't much you can do. Intake/exhaust and a good tune is about all you can do. It will help but probably not a much as you are hoping for.

Answer 4

New exhaust

Answer 5

i'll tell you what to do change it to a chevy its the best ,u wont regret it  

Answer 6

You'll get more HP by putting a CAI (cold air intake) on that truck.

Go to autoanything.com. They have a good selection of CAI's at good prices. A CAI will give you between 10 and 15 HP gain, while exhaust modes will give you nil.

You won't see any increase or decrease in gas mileage.

Answer 7

unless u spend big $ not much to do......air intake 250 dollars plus new exaust plus superchip...will get you 40 HP for 1500/2000 dollars, Obama sez fill up ur tires