That could very well be the impeller Squeeze...I don't think my belt is slipping...

It's funny how it how mentioning "Stillen Super Charger" always seem to incite arguments.

Just look at the tags in this thread to see the maturity level of some of the forum members. For some people libel is more important than logic.

If anything, I think just having Stillen SC as an option benefits the Z community for the better. It may or may not be the best option, but at least the option is out there.

On another note, I don't know how the Stillen's customer service reputation got so tarnished, but from what I have read, they respond to complaints and problems pretty well, especially on this forum.

^ I can agree on that one Mike, Some are more interested in libel.

All rib set up's have slight belt slippage the only way to avoid this is to run a all cog set up.This means on the front of the bracket as well,witch is something I would not do with this system.As far as the impeller goes it does add power under the curve,and peak boost.One thing it does not do is spin the blower faster this can only be done by changing the pulleys.The Stillen 8 pound pulley is the same size as a vortech 3.12 pulley there 9 pound is around 2.80.

The Stillen Supercharger uses a big pulley on the back this causes the blower to spin slower witch means boost comes in slower. I could show you a few dyno's from 350z's that use the same blower without the impeller.That have a better power band with more torque some with more peak power.All without the impeller.

We all know that Stillen made the kit around the carb tune.Vortech did the same thing with the 350z with the same unit.

how much can be gained in the low end?

FYI, I measured my 9 PSI pulley and it is right around 2.8". Do you know the size of the pulleys on the back of the bracket and the SC? My car is in having new brake rotors and coilovers installed so I can't measure it right now.

It all depends on witch cog pulley set up you went with.

I'm not sure of the size of the stock pulleys that Stillen uses I took mine off and threw them in the trash. The biggest cog pulley you can go with is a 34 tooth jackshaft ,and 34 tooth supercharger pulley.

FYI if your going to switch to cog pulley set up make sure you order a 35mm supercharger pulley. The supercharger pulley lines up slightly off from the Idler and jackshaft pulley.

Ok I sat back long enough on this. For the last few days I have been rereading that post and yet on this forum I can't find anything about the situation. So I say this, can we get the full story on this situation? I do not know why this would be kept silant because people have been beating the **** out of stillen over this kit. You can't blame them if a injector was ****** up since they didn't manufactor it. Lets go please, I ask the owner to air this story out for the community since it is not fair for stillen to take the blame for something they have not control over.

Or hey maybe if this **** gets documented josh or kyle can take it up with the injector manufactor and provide new injectors to anyone that might be suspect. I don't know why on earth this would be kept quite when there are others out there having similar issues that could cause them more harm. Forum=help people

Who is trying to keep this a secret??

Also, I dont mean to start a panic for stillen kit owners. I'm literally just saying if you have similar problems to weiboy...I mean you would know since your car would be untunable. Im sure 99% of owners don't have to worry about this.

So, does anyone here know what the symptoms of a bad injector are?

It's not my place to say, I shouldn't have brought it up but I don't like that thread being used as ammo when their were in fact issues with his injectors. All I can tell you is that Deatchwerks confirmed that one of the injectors from weiboys kit failed the flow test. That is certainly enough to cause knock/det and much worse. Injectors can suddenly fail, its unfortunate but it happens. I just wanted people to keep that in mind when looking at that thread.