im running the gm stage 2 kit now...wanted to know what all is needed in order to get a 2.8 or smaller pulley. i know with a 2.5-2.7 you need a dual pass on the HE but do you need anything different for a 2.8?
Thanks

 

You will need the following:

-60 lb/hr injectors
-New Tune

You should get the following:

-Additional Heat Exchanger
-Dual Pass w/ or w/o Opt. B
-Full Exhaust (Header, Downpipe, Catback)
-Intake

 

Fixed it for you.

 

Thanks the way i worded it was so the op knows he needs 60's and a tune to even run a 2.8" pulley. too many people like to think they can get away with running a 2.8 on the GM tune + 42's. i wasn't listing it in any specific order. we shouldnt have to spoon feed people on this site. no one does research anymore.

 

It's scary the amount of misinformation available for these cars. What happened to the good ole days?

First, this (fixed version):


Second:

For the love of God, don't ever drop below a 2.8

 

none of what i said was misinformation for a 2.8 pulley.

 

for once people who know what they are talking about answered first and x2 on what they said

 

I know. I meant the fact that he even mentioned what is needed below a 2.8 (which he should never go). My bad, should have phrased it differently.

I second this.

 

that's cool man .... trying to express things via internet blows.

 

wats wrong with going below a 2.8 nothing if you have the supporting mods

 

too many people think the only thing they need to compensate for is the engine -- everyone overlooks that expensive little item that makes all that power to begin with -- the supercharger!

do a little research, below a 2.8 you overspin the blower and you're not really making any more power efficiently. If you want more than a 2.8 you need to get a bigger blower or go turbo.

 

right but wrong peak power wont increase much but torque will and over spinning the blower isent that big of a deal been doing it for a while now as long as you got all the cooling mods on ur car

 

With the proper cooling mods you will make more HP on a 3" pulley then on a 2.8" pulley with no cooling mods.

And your engine will be a lot more reliable.

 

This.

You guys wanna see what happens to rotors after 22k miles on a 2.7 puley with no cooling mods. Theres no way anything got in there from the intake, or from the engine.. this is the damage caused from either supercharger debris, or just plain over heating and/or over-spinning. Don't try this at home, hahaha.

 

that sure is ugly

 

^^ Now that's what I'm talking about. Real life proven cause and effect, not just "well, I'm doing it and I haven't had any problems".


No offense to whoever falls into that category, I'm just saying that too many times on this forum people try to give out advice as to whether or not you should do something based on whether anything bad has happened........yet.

 

damn jazer i hope that has its own thread, first time ive seen something like that as a result of a 2.7. sticky in lsj performance thread?

 

truth !!

 

seconded... but hey this isnt a car forum anymore...

 

if your worried bout over spinning and creating mass amount of heat in the m62 on a sub 2.8 pulley. Just run meth and enjoy...

/end

 

ill second that. you will be more than fine if you use meth on sub 2.8 pulleys. without meth tho i wouldnt do it.

 

if your not giving the car hell all the time a 2.6 is fine aslong as you have much needed cooling. ive had a 2.8 and have beat the crap out of mine for over a year without any problems or meth. now i just ordered a 2.6 and the ais trunk mount kit. you do gain with a 2.6 i raced my buddy that only had a 2.6 and h/e and i had a 2.8 h/e and hatrickstu modintake and full exhaust plus i was tuned by the same guy as him the same day can definetly see the power gain with a 2.6

 

2.6 is putting the blower out of its efficiency range even with meth and whatever. it only gets worse the smaller you go past 2.7 ( with meth )

 

damn what a good informative thread by me lmao. i wouldnt go lower than a 2.8 but i have a 3.0 on it now. is it even worth it? or should i just work on cooling instead of smaller pulley

 

Yes you will see gains with a smaller pulley than your 3.0, as long as you take the proper cooling & tuning precautions you can do it relatively safely as well. Asking wether or not you should go smaller or work with your 3.0 is up to what you are willing to risk & what you want out of the car.