Timster06SC

what is the smallest pulley i can run without a tune or injectors..

Coblasts

Ive heard 2.9 and thats still streching the duty cycle on the injector.

NJHK

I wouldn't even want to do something like that

Bika

iTrader: (3)

2.9" is suicide. its not a matter of "if" something will break, its a matter of how soon it will break

3.1" is relatively safe. any more than that and you really are pushing your luck. you also need to run 1 heat range colder spark plugs with any pulley smaller than stock.

XM15

And a 2.9 is only alright if you already have the stage two reflash.

TXRLU

While 2.9 runs a little lean, I ran with my old Redline installed for a couple of months without any problems. You'd definitely want to get a tune and larger injectors especially if you have any other intake/exhaust work that's freeing up the air. Personally I LOVED my billetflow pullies. I had one pulley go bad on me after about 9 months and called Billetflow and they replaced it free of charge no questions asked. I think all I paid for was return shipping. I had a blue pulley that matched my Blue Saturn and it really looked great. http://www.billetflow.com/supercharger_pulleys.htm

Onyxd04Redline

3.2" should be the smallest.

Inferno

with a stage 2 kit i should be safe to run a 2.9 right?.

burntorange

I run the 2.79" with the stage 2 tune and DAMN!!!! It is off the hook!! I am completely satisfied.

Inferno

I thought going any smaller than a 2.9 with just the stage two kit was a little risky?.

burntorange

The only thing that kills these cars is heat. I have methanol injection, cobra heat exchanger, the dual pass, and a kinda sorta small other secret to keep my intake temps really cool. I am getting ready to drop my pulley size down to like a 2.5" and get my blower ported and polished, to also drop intake temps, and new high performance blower bearings. My little car SCREAMS!!!!! and I haven't even been able to tune my car yet, going to order the program in a short while and learn to do it myself. Then to the dyno for my close to 400whp pulls!

Coblt ss super

3.1, because tahts wat im doing soon

07 SS/SC

I say the smallest you can run with out anything else would be stock.

Dont go cheep on horsepower and boost. **** tends to blow up if you do!

Mike

ItalianJoe1

iTrader: (10)

I ran a 3" for a month or two until I got the Stage 1 flash and injectors. You can do it, I wouldn't tell you to keep it like that though. Save up $500 and get stage 1 at the same time. Don't be cheap.

BlueSS-supercharged

im going to bite the bullet and revive another one of these. im running a 2.9 for almost 2 years and about 57??? i cant think but as long as your not wide open all the time. id like to say im pretty conserative. but i dono its had no problems besides that damn sunroof and poopy tires

MrSlickSter06SS

Now when you go do the stage 2 conversion with GM do you have to tell them what # injectors you want or how does that go into play?

braineater

400whp? i really really really doubt it.

Blurred Vision

I currently have a 3.1 on all stock with no problems.

burntorange

you and many others do, so all I can say is watch and learn man.

Shortbus

It will be a gift of god to see over 300whp unless you have nitrous, and goodluck with that 2.5, i hope you have or plan on pistons in the future.

D4u2s0t

it is.


about the post that heat is the only killer, what about running lean as hell? do you have a wideband? i bet you're a/f is crazy lean runnign a 2.79 on a stage 2 tune.

lsjwannabe

iTrader: (1)

stock pulley my idc's were 120%

Shortbus

And iam willing to bet burntorange has never loged his car or seen his afr or egt temps.

forced_induction

just toss a 2.5 on there and let us know what happens

D4u2s0t

i know. i bet they're off the charts. if heat is the only thing he's worried about, he's going to run into some serious issues in the near future