kind of jerks around...wants to go fast but i gotta go slow...kinda of like its going into limp mode...

 

Did you change the plugs? This doesn't sound good.

 

That is a good question. If you didn't change the plugs you realy need to.

 

plugs didnt come yet...ordered same day i did pully maybe tmr or friday should be here...but i just reset the pcm and now everything is kosher...not jerks nothing at all...but plugs should be here soon...got the 1 colder plugs since everybody was saying it was fine...from CTCOBALTSSS write up (website and all)

 

well, is it a lot faster?

 

umm yea you notice a big difference...well atleast i think there's a difference pulls harder and then next thing you know your already at 80 mph even my dad was like "wow" but tmr when i go to work and put gas in it i can try it out on some open road...

 

CT add the reset the pcm to the write up if you didnt already

 

A little off topic, but is a 2.70" pulley safe to run with GM Stage kit on a daily basis? I've been hearing different stories. Anybody running smaller than a 2.8 with their GM Stage kit out there???

 

I woul dbe cautious with a 2.7 and stage kit without something like an interceptor to watch the numbers....

 

Thanks man - yeah, I have one of those special Interceptors in my car right now - you know, the one that doesn't work Anyway, hopefully Aeroforce will rectify the issue and get us functioning ones soon!!

 

You got it bro. I updated it earlier with the gm stage 2 belt part number. I will add the PCM as well.

 

how do u reset the PCM, I don't have this problem but just incase I run into it.

 

You remove your negative cable from your battery that's in the trunk for 3 minutes and then put it back on. Done!

 

wicked thanx man, I feel more power on the butt dyno but it does feel as it wants to go faster but its being held back. hopefully this fixes that.

 

Yeah that should fix it. Let us know....

I updated with an additional 2.8" discussion thread link.

 

A bump for everyone's knowlage.

 

I took my car in and i got my stock PCM get reflashed by the dealer and for like two weeks after that if felt that same way but it it came back to life. But then again maybe i just got use to it .

 

What if I swap in the 2.8 for the stage 2 pulley when I have my dealer install. Will the reflash automatically recognize this or do I still have to unplug the negative?

 

After the tech installs the 2.8" pulley let him do the normal reflash first and then do the PCM reset. Unplug the negative to your battery for 3 minutes and plug it back in. That should do it. The reflash is just calabrating new air/fuel and other little fixes like sporadic idle while the A/C is on and what not.

 

exactly the reset of the pcm is necessary to allow the pcm to make new adjustments for the smaller pulley compared to the 3"

 

Not saying this is wrong, but I had different experience this past weekend. Was using a 650 lb impact wrench and a puller tool to no avail. I'm going to try a press next, but can't figure how the next pulley is going to go on if it is just as hard to replace. Any ideas? Dealers are ignorant around here I guess cause they can't help me. I posted in the below thread too, but reply here too i don't care.

https://www.cobaltss.net/forums//sho...t=21575&page=3

Oh and where are the original bolts on the pulley??? I don't have any. Am I blind as a bat cause I was pulling on that thing for 30 minutes. Are you talking about the supercharger casing bolts?

 

Mike taking the pulley off the 1st time I would definitely recommend a press 20t would do it, also if you are installing stg 2, then your original pulley is replaced with a black hub and a pulley ring that is held to the hub with 4 bolts, these bolts are what you remove to attache the new 2.8" ring to the hub.

Be careful you dont screw the threads up in the snout of the s/c use anti seize on whatever you screw in there for lube

 

your hub is on backwards if it doesnt sit flush i did the same thing but mine was like 1/4 inch off

thats what happens when you dont read directions

 

Thats what Im referring to so let me reword..

How to I get the hub with 4 bolts on the the shaft with a press? All the directions say is remove pulley with press. OK, thats easy. Then they say install new pulley with press and makes sure not to apply force to the supercharger casing. This step is what I'm talking about. I'm guessing I have to use the threads in the SC shaft to somehow pull the shaft through the new hub, but a normal press can't help with that. What the heck do I do?

 

OH, putting it ON, lol

You put it on with an installer tool, GM recommends an alternator pulley installer, but a lot have used 3rd party install tools for s/c's