performance for a 4.6
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Junior User
Joined: Nov 2003
Posts: 52
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performance for a 4.6
i have an 03 f150 with a 4.6 and a 5spd, i want to get more power out of it. it has dual exhaust, a cold air intake, and a jet chip. any other good performance items? also is it possible to make an f150s 4.6 into a cobra 4.6, dual overhead cam 4 valve?
Cargo Master
Joined: Apr 2001
Posts: 2,466
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From: northern kentucky
If you like big headaches go for it. Unless you just buy a complete dohc motor to put in your truck. Don't forget a new computer and harness also I believe. You might have better luck trying to do the Bullitt set-up with the shaker hood. On a F150... that would be sweet. Full length headers with an X pipe. What's the gear ratio in your ride.
New User
Joined: Dec 2003
Posts: 4
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From: vermont
I have a 2003 150 with 4.6 engine. I've added a Volant cold air induction with a Granatelli 80mm Mass air flow sensor. Cold air induction didn't seem to add much but when I added the maf it leaps to life when you give it a little pedal. I'm going to add a Diablo chip to see if that will give it a little more *****.
New User
Joined: Nov 2003
Posts: 14
Likes: 0
From: New Haven,Ky
hi folks, I am new to this so please enlighten me. What is a mass air flow sensor? Where does it go and how much does it cost?
Also, how hard is it to install as I am a novice.
I just bought my first new truck. 04 f-150 xlt 4.6
thank you
Also, how hard is it to install as I am a novice.
I just bought my first new truck. 04 f-150 xlt 4.6
thank you
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Senior User
Joined: Jul 2003
Posts: 379
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From: irwin,pa
more power
Originally posted by hbbowlvt
I have a 2003 150 with 4.6 engine. I've added a Volant cold air induction with a Granatelli 80mm Mass air flow sensor. Cold air induction didn't seem to add much but when I added the maf it leaps to life when you give it a little pedal. I'm going to add a Diablo chip to see if that will give it a little more *****.
I have a 2003 150 with 4.6 engine. I've added a Volant cold air induction with a Granatelli 80mm Mass air flow sensor. Cold air induction didn't seem to add much but when I added the maf it leaps to life when you give it a little pedal. I'm going to add a Diablo chip to see if that will give it a little more *****.
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Senior User
Joined: May 2003
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From: Wichita, Kansas
A couple of things will get you more HP, a throttle body spacer and a new MAF. If you do any of these things, you will need to have your chip reprogrammed and also reset your truck's computer (disconnect the battery for 30 minutes). My 4.6L will take out stock 5.4L's with no problem. If I had bought a 5.4L instead, I can only imagine the HP I would be producing with the mods I have done so far.
Senior User
Joined: May 2003
Posts: 329
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From: Wichita, Kansas
I got that recommendation from a diesel performance expert I know (ie he owns a performance shop). I figured if he can get a 3/4 ton diesel truck to do a 1/4 mile in 13 seconds I will listen to him.
To answer your question about if I have dyno tested my own truck, no. I like more power but I'm not too worried about exactly how much more power I am putting out. I should get it tested someday though.
To answer your question about if I have dyno tested my own truck, no. I like more power but I'm not too worried about exactly how much more power I am putting out. I should get it tested someday though.