I am going to try a 4 lb pulley without a chip. Enough research I believe has been done to suggest this is safe.
I will also hav it checked on a dyno to make sure. Should I stay under 11.5 a/f to be safe?
One more thing, does anybody have a 4lber they want to sell. Please email me at chris@oldlifemagazines.com
Thanks

 

More power to you keeping a 4# under 11.5 without a chip.

 

Thanks Pawn, I need all the power I can get.

 

Good Luck! Let us know how it turns out.

 

I ran a 4lb pulley, 90mm mass air on my 2000 lightning without problems tonight. Ran a 13.4
I do have to say with the chip you can definately tell the difference, but because of detonation i could not run the chip tonight.
I haver been running this setup w/o the chip for about a week and half and have not had a problem, no detonation and no check engine light which i expected with the upgrade of the mass air.

 

Hey Black2000L it was nice meeting you. I was the other guy with the black L you talked to me and my wife. I have a 4lb pulley and had to send my chip back to my tuner. He recommended not running at WOT and everything would be OK. I personally would not run my truck with a 4lb pulley w/o a chip. Why is it that you don't want a chip?

 

You guys in Florida with your warm are (and those in TX/Souther Cali) don't count. :P

Daniel

 

Many guys have run 4#'ers without a chip... and been just fine. But, then you don't get the full potential out of the pulley! Thats your decision though... Just make sure your A/F is safe!

-Mike

 

i have a 2000 L with an #8 lower and a #2 lower without a chip. it is bone stock including the platinum plugs which i just checked and they look like new. it has 15000 miles on it and has been pullied since i bought it. i have never had any detonation even in 20 degree weather . it runs mid 12s on street tires.(1/2 way hooking)sfifts at 5400

on the other hand i have a 99 L with a #8 lower and a #2 upper with a chip ,which i sent back 5 different times due to something different each time: detonation, wrong gear ratio, wrong year, way to hard shifting, way to high shift points. but i will say when i got it right it was very noticeable. i also have a full bassani with no cats, 4.10s,aftermarket plugs, 90 mm mass air,and a level 10 shift kit. it runs low 12s on street tires.(spinning)shifts at 5700

i have alot less money in the 2000 and is almost as quick as my 99. now that i have tried this and everything seems fine most of my friends have just the pullies and no chip because they are scared of dealers giving them problems about a chip being installed. the pulley is just i simple bolt on that can be swaped out at any time.

 

i have a 1999. i bought a 90mm mas and i am thinking about a 2lb lower and not getting a chip. you guys say this will work. what kind of scanner can you get to check your a/f. i havent put on the 90 mm mass yet. i live in pretty mild weather up here in the evergreen state. what do you think i could run thru 1/4 mile with that kind of set up? or is this a disater waiting to happen.

 

I agree. Even If you do not blow up, you are still not getting the full potential.

VINNIE

 

the 2000 L i mentioned in the above post still has the stock 80 mm mass air and runs great so i am scared to change the meter.

 

99redbolt
You actually have an 8 lb. lower and a 2lb upper without a chip?
That is incredible. Have you ever checked the a/f?

 

I guess that everything is relative. In stock form, one could argue that the L is no where near it's "full potential." And a chipped L with a street program is not near it's "full potential" either (that would be the race program). So does that mean running below full potential is wrong? I hope not. The difference is how much reliability/safety one is willing to sacrifice for their performance (which is the case with *any* mod... whether tranmission, brakes, suspension, etc). I don't campaign my vehicle in professional racing, so I don't tear down and rebuild my engine every week. I am not necessarily satisfied with stock, but don't want to be on that bleeding edge either. So I am considering a pulley without a cheap as a compromise. I guess I just need to verify that the stock computer has enough safety margin built into the A/F and timing to handle the extra boost. And I'm nervous about maxing out the MAF sensor too (should I be worried? Or is that all conjecture also?)

 

2000Black, hey it was nice meeting you tonight also. I dont have the chip right now because i was getting some detonation with it. Since i had been running the setup wihtout the chip for the past week and half, i came to the conclusion that i would not have a problem with running it tonight.

As for the chip, when i had it in, it did make a hell of a difference and i would have probably been in the 12's tonight with it. I will get the chip i just need to get it tuned right, which is why i plan on putting up on a dyno next month.

I gotta buy a pool table first though so truck mods are on hold for a while, ama college student and the pool table is neccessity at the moment. But for right now am happy with my truck tonight, she ran beautifully.