I just finish installing my 3'' zzp pulley, it took me 4 hours to install. I also order the zzp pulley puller, and it in my opinion is the best I have ever used.

I took the car for a test drive and it pulls like a "mother", Im seeing 15psi without the boost-by-pass mod, and the car whines like crazy. I look forward to taking it to the track and having a few street encounters.
Well just wanted to let everyone know I have joined the pulley club and are pleased with the results and the helpful information this site has to offer.

 

was that the only mod u did just the pulley

 

Looks like you have been following my front page reviews!! Awesome
You have the same mods I have so far.

I already installed my Interceptor gauge, so now am ready to datalog and bring in some very valuable readings for tuning purposes.

This week, am going:

-2.6 Inch ZZP pulley
- 42# Injectors
- ZZP adjustable tensioner
- 1 step colder plugs
- MAFT
- Dyno to REDLINE and also SSC lowering springs!!

In 1 month its going to be a custom HPtuners tune and a 3" JBP Vortex exhaust!!

 

Any of you guys know if you're running lean?

 

12.5 afr @ 6500....still safe.

 

Just out of curiosity, what isn't safe? I thought ideal was 14.7. Educate me.

 

You think a 3" pulls like a mother? Try a 2.5" lol Congrats though. Once you swap one pulley, you'll keep wanting to go smaller.

 

wats the smallest pulley u can go and still use the 42 pounder injectors?

 

2.6 Inch

 

really!!!
so if im gettin a custon tune, with a 2.85, intake and such, then decide i want a 2.7 im ok?

 

You should be. If you are worried, you can also log the car and see what the cycle duty is on the 42#.

 

good to know, my car goes for a tune very soon, just wanan be sure if i do decide to throw on a 2.7 everything will be ok after the tune.

 

ive made multiple passes with my stage 2 w/ 2.6 and it runs fine with the 42#'ers its teh IAT's im worried about, i need a larger H.E to run this normaly

 

Yep, the only mods I have are intake, and pulley.

 

Yes I have been, they are very helpful.

 

Oh yes I know, now I want stage1 w/2.7'' pulley.
You all think it is safe to run a 2.6'' pulley with a stage1 kit?

 

2.5" pullies suck hahahaah Congrats on the 3". I bought a 3" ring and have never put it on hahahahahah

 

I wouldnt run more than a 2.8"...I dont think itd be safe especially if u open track ur car

 

Can you run a 3" pulley with the stock injectors and PCM program. I plan on ordering the Intense Racing pulley today and the ZZP puller. I called my local (50 miles away) Gm performance dealer and the stage one is backordered and I want to change the pulley.

 

what is the smallest pulley you can put on with out a machined snout?

 

I installed my 3" ZZP last night. Thanks to the review and how to it took me all of 2 hours to get it done. The car pulls alot harder now. I need to find a shop in NJ with HP tuners so when I get the 42 lb injectors I can have it tuned.

 

Where are you tunning again Denny? Can't wait to see the ride when its done!

 

Am going to get the car Dyno and tuned at "NEW ERA PERFORMANCE" in Rochester, New York.

Cant wait, Mike the owner NEP has a Cobalt SS/SC himself and has over 80 runs on the dyno and has been using HPtuners for years now.
So I trust Mike will be able to tune my car to perfection.