[martinoledad]

ok im looking at what to do to my truck as far as performance. I already have
-True dual magnaflow
-K@n CAI
-Jet MAF(I know your all's opinion but i already got it)
-SCT programmer with custom tunes
-troyer underdrive pully kit

On the wish list
-longtube headers(havent found a kit yet)
-BBK 80mm Throttle body
-Suncoast ram air hood(sticking with the K@N CAI not theres)

I want to so the last three at the same time so that way I dont have to get my tunes redone more then once. I also seen this from summit racing what do you guys think (so it may be a little while)

Trick Flow Specialties TFS-K519-390-375 - Trick Flow® Twisted Wedge® Top-End Engine Kits for Ford 4.6/5.4L 2V - Overview - SummitRacing.com

Can you guys think of anything besides a supercharger.

[ticopowell]

a big think that I have heard of/felt is to get rid of as much mass as possible. its amazing how much 100 lbs can do to performance. i have also thought of a supercharger, and I asked a shop around here that i happened to drive by, and they said they could do a supercharger, with a custom dyno tune, for around $6000. If i had that kind of money lying around I might think about it , but other than a supercharger, all i could really think of is to change the cam shafts, use different intake and exhaust parts, or get a turbo... . , im sure others have better advise, but that is what I think.

[martinoledad]

how much more HP can you get out of getting an aftermarket cam shaft.

[ticopowell]

I personally didnt know, but this web site says that its up to 45 hp... so quite a bit in my book hope that helps

[ticopowell]

Also a new throttle body (not the stupid 1" spacer) could help get more air/fuel into the engine, its larger than the stock one so more air can enter

[martinoledad]

Originally Posted by ticopowell

I personally didnt know, but this web site says that its up to 45 hp... so quite a bit in my book hope that helps

WOW! there is alot on that website id like to have after looking at it. Do you know if doing any of that would hurt the gas mileage.

and thanks,

[ticopowell]

I cant say for sure, theoretically any change to add power makes the engine have to work less to do regular stuff, but adds the tendency to use the right foot more.. so if you drive exactly the same as before then you will see some improvement, but if i did all that, first i would be broke , but I would definitly use more gas. and your welcome

[martinoledad]

On those camshafts on the level 3 it says on one brand that it is a rough idle, and on the other one it says very very rough idle. what does it mean by rough idle and can that be fixed by custom tuning.

also on the crower brand it doesnt say it needs lower gears but on the crane brand it says lower gears required.

and what can those springs do

and as far as the cylinder heads go. it talks about the 5.4 in the description but it only talks about the 4.6 in the applications.

[ticopowell]

Honestly your guess is as good as mine for those questions, lets see who else know something about them.

[jmt0645]

Originally Posted by martinoledad

On those camshafts on the level 3 it says on one brand that it is a rough idle, and on the other one it says very very rough idle. what does it mean by rough idle and can that be fixed by custom tuning.

with aftermarket cams the engines power band is moved slightly higher with each "stage", by rough they mean the engine is wanting to be higher in the RPMs but can't. for tuning its mechanical and i don't think you can smooth the idle, i may be wrong though.
also on the crower brand it doesnt say it needs lower gears but on the crane brand it says lower gears required.

all the gears do is to help get the engine into its new power band sooner
and what can those springs do
aftermarket springs have more pressure to close the valves faster to prevent valve "float" which will cause SEVERE damage if not used
and as far as the cylinder heads go. it talks about the 5.4 in the description but it only talks about the 4.6 in the applications.

both are "modular" motors, block/heads/cams/cranks, all can be interchanged