Does anyone make a 2.85" pulley for gm stage 2 hub? Thanks.

I checked ZZp but it says for ZZP modular pulley system not GM.
I checked pulleyboyz they only have the 2.8" pulley.
Cobalt- Addiction has a 2.79" pulley not a 2.85".

A 2.85" pulley would keep us just under 80% duty cycle w/42lb injectors @ 7,000rpm.

 

yeah i saw that its a 2.79 and not a 2.85 that fits maybe no one makes it but i hate u, u acutally have GM stage 2 in ur car well mine will b in soon and did u insall it or did ur dealer and u live near me so wat dealer, if they installed it, did it?

 

I had the dealer install stage 2. It was at this location.

Gengras Chevrolet
460 Connecticut Boulevard
East Hartford, CT 06108 (860) 528-2575.

They did a great job. Give them a try. I want a 2.85" pulley specifically to stay in a reliable duty cycle.

 

i dont think going from the 2.85 to 2.8 is going to net much difference. Im putting on the 2.8 tomorrow with the stage 2, the car was fat on the dyno anyway. THis will help bring it up a bit. I wouldnt worry about it

 

hey thnx man ill c where they r located and c wat they can do for me

 

I want to go from my 3" stage pulley to a 2.85" pulley.
A 2.8" causes 90% duty cycle up near 6,500rpms. A 2.85" will let me go to 7,000rpm without maxing out the 42lb injectors duty cycle.

 

is this a fact cuz if so, i can keep what ive got and sell the 60's and harness cuz i dont think ill go to a smaller pulley.

 

check out cobalt-addiction/... they got em pretty cheap

 

It's a fact bro here is the thread.

https://www.cobaltss.net/forums/tune-time-performance-115/dyno-results-35070/

This is from Tune Time Performance.
I asked him what the duty was from 5,500rpm - 7,000rpm.

 

thats based on a 2.8 if i read it correctly though..

 

Exactly, I want to stay away from the 80% mark. A 2.85" will do that.
2.85" seems to be the best bet. With a 2.85" you can keep your 7K redline.

 

yea we need to get somebody to make one ASAP!

 

2.85 sounds like a good plan considering you wont need to swap injectors just tune. Im planning on doing this next summer.

 

no need for tune if running GM stage tune,, right....

 

I would get it tuned just to get that nice flat fuel curve. So I guess that's that.
We need a 2.85" pulley that fits the GM stage 2 hub and looks stock.

 

most of the info says 2.8 cause about 83-84% not 90. 2.7 is about 90-92%

But i can see you wanting to be safe from possibley going static, though i doubt it unless your car lives at 7k. Either way...you will be ripping gears with more power

 

whats with 2 threads for the same ****

 

This thread was made to find out if there was a 2.85" made that fits the GM hub.
I found out nobody makes one yet.
So the other thread is to get a vendor to make one.

 

Should have just bought stage 1, smaller belt, and zzp pulley

 

duhhhhhhhhhhh

 

no such thing as stage 1 smaller belt

 

Yeah I hear ya. Flame on, flame on.

Either way, now i'm on a mission to get somebody to make a 2.85 for the gm hub.
I think they would sell well.

 

sorry stage 1 and the stage two belt It cost me like 120 dollars to upgrade from stage 1

 

yes do it.... do it,

and i am glad he was joking about "stage 1 smaller belt" ????

 

Just get the Pulleyboys 2.8" one CT. I use it, and I'm still pig A$$ rich all the way throughout the rpm range! I dyno'd a month or so ago to check it. You will be fine as many others on here have been for months now!