i have a 01 5.4l 2wd supercrew i have 3.55's in it now if i keep stock tires and rims if i put 3.73's in it will i notice more accleration and will i have better times, i have a edge and CAI but i am wanting more power without spending 5k on a supercharger, maybe down the raod i am gnna put 22 or 24's on it so what size gears should i get and what is my axle 8.8 or 9.5

 

If your going to change gears put in 4.10 you won't notice that much of a differnce going from 3.55 to 3.73 's

 

4.10s may be too much with stock tires, but i dont think 3.55 to 3.73 would be worth the money.

 

well from what i heard 4.10 will hurt your gas mileage on the highway is that true also how much rear wheel hp and tq gains will i get if i do e fans and pulleys i am looking very hard at both of them
thanks

 

efans and pullies, about 20hp between 4-5krpm putting 4.10's in my truck helped my city and highway mpg by 2-4. thats only because my truck was straining to turn the 33x20's

 

ok bc i am just left wanting more power in the next few months i am considering putting on e fans, pulleys, and exhaust it should give me the extra power i want right and if i go to 4.10 gears it should pick up and go alot more with all that correct
just wondering what are your 0-60 and 1/4 mile times

 

my 0-60? well lol, burning the tires all the way through first gets me to 60 in 4 seconds... BUT 4.10s dont give you more power, just moves you quicker.

 

so with the 4.10's it will just get me off the line quciker and more acceleration correct and back to the fans and pulleys where to get them and what brand are good without spending a s**t load of money i am either going to put bout 800 into my engine or a stereo system i am leaning towards the engine bc i love power

 

if you have 800, get dynatech long tubes. I gained 30hp and 35ftlbs!

 

Going from 3.55 to 3.73 would not be worth the expense of having it done!
I agree with everyone on the 4.10s
I have 4.10s with 23"wheels that are about 32"tall and 4.10s are just right.

Phil

 

Spend it on some other mod like headers like Built wrote but getting gears now is a waste of money because maybe down the raod i am gnna put 22 or 24's on it. Untill you know what size tire you plan on running do not bother with gears. If you change your mind later you will have bought useless gears.

JMC

 

Your 4.10's will help you feel more power. They will put it to the ground quicker and more efficiently that your 3:55. You will feel like the engine is more powerful.
Then do the headers and your pulleys. A tuner is a must too.
Hey built, did you gain the 30+ hp and tq with the headers, berfore or after the blower?

 

well i have a tuner and cai right now but i heard that pulleys and e fans help more than headers, i seen some people were saying headers are useless if u dont have a highly modified engine, i dont even have exhaust yet, with the e fans and pulleys i was hoping to get around 20-30hp and 2-3mpg better thats what they advertise is that so??

 

I think efans and pullys are more of a butt dyno thing.
Long tube headers are tried and true. I have had several friends who have done a header swap and it feels like you have taken a huge weight off the vehicle. I firmly believe that a good set of headers will do more for you than pulleys and an electric fan. Immediately you will see a linear power increase and a more linear acceleration. Stronger pull from bottom to top.
The tuner and CAI will really help with the header gains, more so than e-fans and some pulleys/ Additionally depending on what stereo system you go with, at idle you may experience slower windows and electrical responses as the underdrive pulleys "underdrive" the alternator. At speed you probably wont notice any difference.

 

Did you get the 30+hp from your headers before or after the blower was installed.
That seems like an awful lot.