I know this forum is somewhere, but I need to know asap lol. If you buy just a zzp stage 2 belt, do you have to mess with anything else with the supercharger? I know this might sound dumb, but i would like to know before i get it. thanks!

 

Yes you need a smaller pulley.

 

ok thankk you, A 3.1" pulley?
Is it a risky thing to do or isn't really a big problem?

 

I think a stage 2 pulley from gm. But uhh yeah its pretty safe if you tune for it. I'm on a 2.9 pulley right now. I think like 2.7 or so is ehh. Well to me atleast

 

On zzp website there's an option of 2.8 or 3.1 for gm pulley. lol right that's what I'm reading now that they don't really recommend that.

 

Ok lets start from the beginning. what mods are you running right now? what pulley size do you want to run?

 

I never touched it, the guy before me said all he has done to it is stage 2 injectors ... and i don't know what pulley to get for the stage 2 belt. I dont know a lot about this kind of stuff, just bought the car lol sorry.

 

well when you change injectors you have to tune for it and generally when you change injectors you drop pulley sizes. If you could look at the pulley it should have something signifying what size it is. most likely it is gm stage 2 i forget exactly what they say on the side for that (maybe someone else can chime in about that) if it is GMS2 then you will need a stage 2 belt.

 

Alright I will look into it tomorrow and talk to the guy who sold it to me. thanks I appreciate it.

 

no problem, let us know what you find out.

 

Before u go any futher u need to make sure that car has gm stage 1 kit, are the top of ur injectors green or black.

If ur injectors are green do not pulley down as that is stock injectors, if u got black ones then that could be gm injectors or any other aftermarket brand but u should be safe on a 3" pulley if it does have gm 42s u will need the pulley n hud tho as im assuming ur sc still has the stock pulley, id get the zzp mps pulley system 100 bucks for pulley and hub.

 

Alright thanks i will let you guys know next week, i brought it to the shop to powder coat the rims matte black

 

bump
Sorry I haven't gotten back to you guys on here, but i did look and they previous order took everything out of the car he had in it and it is bone stock, injectors are green and pulley and everything else is stock lol.

 

So are you wanting to mod it still?

 

yeah I would like to put a stage 2 kit in it sometime soon!!
The guy took all his mods out before he sold it to me and told me he would sell it as it was sitting

 

Sorry don't want to switch the subject but I just bought a 2005 cobalt ss/sc and when I punch the gas it blows black smoke out of the exhaust?? Any ideas?? Thanks