Just installed pulley technologies 2.8" pulley [Archive] - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums

: Just installed pulley technologies 2.8" pulley


clownhair
09-13-2005, 07:00 PM
I got a new pulley from a company called pulley technologies. They are basically ZZperformance but have a different name currently. They have something to fix the belt tension issue although I am not sure if it is for sale or not quite yet. It is very nice watching the boost come on so fast and not have the belt slipping. I will get it back on the dyno to report some numbers for you guys soon. Pulley technology has some good prices on there stuff and have some deals where you can get a press on pulley and there remover/install tool.

05YELLOWSS
09-13-2005, 08:42 PM
I got a new pulley from a company called pulley technologies. They are basically ZZperformance but have a different name currently. They have something to fix the belt tension issue although I am not sure if it is for sale or not quite yet. It is very nice watching the boost come on so fast and not have the belt slipping. I will get it back on the dyno to report some numbers for you guys soon. Pulley technology has some good prices on there stuff and have some deals where you can get a press on pulley and there remover/install tool.


hurry up and dyno that shiznit, I'm gonna get mine dynoed next week, so excited

LoungeLizard
09-14-2005, 06:53 AM
Are you using anything to get more fuel?

Mike@psi-fi
09-14-2005, 10:35 AM
Are you using anything to get more fuel?

Inquiring minds would like to know. Since you copied and pasted this message across at least 2 different forums i'm assuming you are leading into something, so lets hear it, or is it just speculation at this point?

clownhair
09-14-2005, 11:00 AM
Inquiring minds would like to know. Since you copied and pasted this message across at least 2 different forums i'm assuming you are leading into something, so lets hear it, or is it just speculation at this point?
3 forums, I do the same with most of my posts. I guess I don't know what you mean by speculating? I just put a different pulley on is all. :confused: Why are you getting pissy about it?

clownhair
09-14-2005, 11:04 AM
Are you using anything to get more fuel?
Wide band has the AFR at 10.9:1 througout most of the WOT powerband. It dosn't seem to need more fuel.

Mike@psi-fi
09-14-2005, 11:36 AM
Wide band has the AFR at 10.9:1 througout most of the WOT powerband. It dosn't seem to need more fuel.

First of all, I don't understand the Pissy comment. Don't be so defensive.

I am asking because it seems like you left something short and i'm curious to hear what it is. Knowing what I do about the car, I was wondering how you took care of some of the problems that arise by just throwing a pully on the car. If I am reading correctly, you said "most" of the powerband, but I know that the part outside the "most" is the most(no pun intended) critical. How are you adding fuel at the top of the RPM band when the car goes lean? Just don't want to see anyone's car get messed up.

Like we said a long time ago, if we thought it would have been safe to put just a pully and tensioner on the car we wouldn't have gone to all the trouble putting a piggyback on it. We would have just sold pullies and tensioners ;)

clownhair
09-14-2005, 12:32 PM
First of all, I don't understand the Pissy comment. Don't be so defensive.

I am asking because it seems like you left something short and i'm curious to hear what it is. Knowing what I do about the car, I was wondering how you took care of some of the problems that arise by just throwing a pully on the car. If I am reading correctly, you said "most" of the powerband, but I know that the part outside the "most" is the most(no pun intended) critical. How are you adding fuel at the top of the RPM band when the car goes lean? Just don't want to see anyone's car get messed up.

Like we said a long time ago, if we thought it would have been safe to put just a pully and tensioner on the car we wouldn't have gone to all the trouble putting a piggyback on it. We would have just sold pullies and tensioners ;)
sorry I guess I took it that you were ripping me a bit. I honestly am running rich until I hit the limiter. The only part I run around a 13:1 ratio is at part throttle or low rpms. I have used my LM1 wideband for this test as well as another wideband and they were both the same. I am wondering if I have some sort of super car, I don;t seem to have any problems with mine like other people seem to. So any insight on why mine seems to continue to run rich while your guys went lean?

Mike@psi-fi
09-14-2005, 03:52 PM
sorry I guess I took it that you were ripping me a bit. I honestly am running rich until I hit the limiter. The only part I run around a 13:1 ratio is at part throttle or low rpms. I have used my LM1 wideband for this test as well as another wideband and they were both the same. I am wondering if I have some sort of super car, I don;t seem to have any problems with mine like other people seem to. So any insight on why mine seems to continue to run rich while your guys went lean?


Did you bypass the bleed-off at the top of the powerband?

clownhair
09-14-2005, 03:59 PM
Did you bypass the bleed-off at the top of the powerband?
no, stock bypass system

EastCoastZ
09-14-2005, 07:12 PM
Is there a way to rig some kind of manual turbo boost controller on the vaccum solnoid to fool the PCM?

Mike@psi-fi
09-14-2005, 08:35 PM
no, stock bypass system

Well, thats the solution. If you watch the gauge you drop boost down to about 10psi when you approach redline. If you are running 13/1 now, wait till you disable the bypass. Basically, you are loosing a lot of horsepower up top, but to get it back, it needs to be tuned to it's full potential.

clownhair
09-15-2005, 04:26 AM
Well, thats the solution. If you watch the gauge you drop boost down to about 10psi when you approach redline. If you are running 13/1 now, wait till you disable the bypass. Basically, you are loosing a lot of horsepower up top, but to get it back, it needs to be tuned to it's full potential.
yep I have seen it bottom out.

Pierre
09-15-2005, 08:53 AM
Well, thats the solution. If you watch the gauge you drop boost down to about 10psi when you approach redline. If you are running 13/1 now, wait till you disable the bypass. Basically, you are loosing a lot of horsepower up top, but to get it back, it needs to be tuned to it's full potential.

My take on all this is because of the bypass limiting boost you will have the same horsepower as stock as you get close to redline. You don't lose any but you are leaving something on the table. You should see an improvement in midrange torque though which is where I find the LSJ lacking in comparison to a turbo.

Pierre

Darksun280
09-15-2005, 11:24 AM
Well, thats the solution. If you watch the gauge you drop boost down to about 10psi when you approach redline. If you are running 13/1 now, wait till you disable the bypass. Basically, you are loosing a lot of horsepower up top, but to get it back, it needs to be tuned to it's full potential.

Wait so are you saying that hes going to run lean up top evenually if he disables the bypass system and the only reason he hasn't is because the system is still inplace pulling his boost back to near 10 psi so he doesn't need as much fuel?