Sure this has been asked before but wanted to get feedback from you guys!

I have a 01L with almost 21k miles on it and am gonna go with chip/ram air/pulley combo first. I was leaning tward a 4lb but want to consider a 6lb.

I drive the truck everyday about 40 miles a day on an average. I don't think I really drive it hard and actually don't really boost up to much cause I am on the highway most of the time.

So I guess a couple of questions would be:

1) If I do run a 6lb should I be carefull on the kickdowns cause of stress on the engine and possibly breaking the tires loose?

2) Is there a big throttle response difference between the 4lb and 6lb were it kinda has to change your driving habbits?

3) Is a 6lb and maybe 75shot too much for stock shortblock? I ask this cause I am also considering nitrious for track use only (I hope )

Thanks for the imput guys!

 

DOCT

I went from stock to a KB - extra 2lb upper and 6lb lower, so with that in mind. First it was absolute night and day. And yes I am taking my chances................

#1, you can't take it easy with a more aggressive set up, it's just so damn tempting, but know that she will break loose with any heavy throttle.

#2 I can't obviosly answer this question, but my guess is you will notice a definite difference.

#3 with my set up I was told not to add the nitro until I went with a built lower. I am pushing 16 to 17 lbs of boost with the KB and a very conservative tune.

I know my set up is different, but I hope that helps, some what. There are a lot of guys who are stock and doing exactly what you are thinking about. Check out Rob_02Lightning's sight, especially for the nitro aspect.

DLM

and good luck!

 

5LB

 

Im VERY happy with my #4lber--guess Im too mcuh of a beaver to go with the #6....but ALOT of guys here run the bigger pulley everyday without any problems.

Good luck

 

Im VERY happy with my #4lber--guess Im too mcuh of a beaver to go with the #6....but ALOT of guys here run the bigger pulley everyday without any problems.

Good luck

 

I"ve got 20k on my 4# no problems!

 

I am very happy with my 4lb set up. See my sig. 29500 miles and no problems with my daily driver.
Carl

 

I run a 6lber on my daily driver! Runs great, no probs! I was torn between which 1 to run too, I'm glad I went with the 6.

 

If you are intent on spraying, Id go with a 4#, if not Id put a 6# or even a 6# and 2# upper....many Ls run theirs this way down here in Fl.......I drive mine 60 miles each way to work with a 8# and 2.5# upper but I have a built motor and would not recommend this to you.....

 

My daily driver has a 4lber and I love it. The only disadvantage in my opinion is the blower noise associated with an aftermarket pulley.

 

01 w\27k

4# lower and 2# upper. I drive 50 miles a day, mostly highway. In cooler weather 70's I see a solid 14# of boost in hot 13#.

What is your goal?

You could always go with a 4# and add a 2# later....
Personnaly I dont want over 15# of boost. To me that is kreeping
into the danger zone and this is my daily driver.

FYI:
I just took it to the local 1\8th mile track last week (first time ever at a track) I was nervouse and when I saw green I mashed it off idle and roasted the tires thru first and part of second. I ran a 8.88 @ 82 w\60' of 2.2x in hot humid weather. Not great but I'm confident I have a 12sec. truck w\traction and cooler weather.

either way you will be blown away at the difference!!
BTW; Your tires will break loose with either

-0light1
-diablo
-4# lower
-2# upper
-Denso IT22's
-160deg thermo
-Moded air

Dyno w\just the chip\2# upper; 377\466

 

I have a 4# lower only because at the time I didnt know as much about these trucks as I do now. If I could do it again, I'd get a 6#. But if you really want to be on the safe side, go 4. You "shouldn't" have any problems with a 4 as long as it is tuned right. But so goes for most 6#ers... (it's all in the tune, vinny still running that 8#er???) so its your call.
After the 4#er I wanted to go faster... So instead of swaping it out and getting a 6, I got an upper also. Just less belt contact on the pullies... like I said if I had to do it again, 6# lower on my 2000. (and leave upper stock) If it was an 01 I dont know if i'd go higher than 4... just my $0.02... thanks, Shane

 

Incase this matters to your opinions I am getting everything installed and gonna dyno the truck in the same place. I am most likely gonna purchase a 4 way chip from PSP. I am confident that the truck will have the right tune on it and will be able to make adjustments based on the dyno results.

Any one else got any views ?

Thanks for the info guys.

 

Depends on your driving style. 6 lber will generate alot of heat, so if you do long extended runs over 120 or so, I would stay with the 4. Otherwise the 6 should be fine, especially with the options that the 4 way allows you.

 

Thats the best part!