Engine performance
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Senior Member
Joined: Jan 2009
Posts: 687
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From: Coronado, CA
Engine performance
I am gonna be sitting on a large sum of money once i get back from this next deployment and i am planning on doing some upgrades to my engine.. But i dont want to do as far a supercharging or a turbo but mre in the line of internals... IE cams lifters roller rocker stuff like that has anyone ever done this to there newer truck the new 5.4 3v i have an 06 lariat ext cab 4x4 lifted i am trying to push more power out.. or would it be better to to just g with a supercharger or turbo i mean i dont want to be cheap if i go that way and what would be the bst route for that?? also please give me input on my truck if you would as to what else would need an upgade....???
thanks alot guys
thanks alot guys
Technical Article Contributor
Joined: Apr 2007
Posts: 3,807
Likes: 2
From: Pearl Harbor
don't waste your time or money on internals
the only real way to get power out of these motors is Forced Induction. I had the RoushCharger on my 06...absolutely loved it.
alternatively, you can run Nitrous...but...I personally wouldn't
RoushCharger:
the 4.6 and 5.4 motors just don't respond to stuff like Cams, lifters, etc.
you can drop $2,000 on a set of cams...and only gain 20-30 HP
you can drop $2,000 on a set of cams...and only gain 20-30 HP
the only real way to get power out of these motors is Forced Induction. I had the RoushCharger on my 06...absolutely loved it.
alternatively, you can run Nitrous...but...I personally wouldn't
RoushCharger:
$2,450 got me +112 HP...it was a huge kick in the butt for the truck
$4,300 will get you +145 HP
plus it looks pretty damn cool with that blower snout sticking out like that
Saleen Supercharger:$4,300 will get you +145 HP
plus it looks pretty damn cool with that blower snout sticking out like that
also looks pretty cool...I'm currently trying to nail one down for my Expedition...but Saleen is having CARB certification issues, and won't sell them right now...stupid California 
Magnacharger:more expensive...but it looks to be the best in terms of power gains and overall setup
Technical Article Contributor
Joined: Mar 2005
Posts: 4,387
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From: OH-IO
In a way, tylus is right. The only internal mods you can do to 3v 5.4 is cams and heads, they are overhead cam motors so they have no pushrods or lifters or rocker arms. Extermal mods include cold air intake, headers, exhaust, e-fans, programmer, and 80 mm BBK throttle body. Even if you put on every external mod and heads and cams you will only be knocking on the door of 325 rwhp MAYBE, not to mention it will cost you big bucks, you're looking at 4 large just for heads and cams not including installation.
Senior Member
Joined: Dec 2008
Posts: 190
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From: Brea, CA
are you looking to gain more low end? if so, go with the $2500 RoushCharger, you said it's lifted so gear the hell out of it, and a high perf. differential. looking at $3500ish and it'll be good to smash you back in your seat
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Senior Member
Joined: Jan 2009
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From: Coronado, CA
well thanks alot guys i already have the CAI, 80MM bbk throttle body and an exhaust i will prolly switch over to a banks system as far as intake and exhaust there monster kit with true duals and high flo cats with a ram air CAI switch my edge over to a gryphon and go with log tube headers. but i guess i have alot of thinking as far as the superchargr goes... i am thinking of going as far a the roush and maybe the magnacharger.... i will have to see which one gives me the bst gainsfor the money.... but thanks for the inputs if anyone has any more pleaselet me know thanks...