I have been trying to diagnose my ATI procharger, but i dont know if this is a common loudness/grinding or somthing is wrong...
Thanks
http://www.igride.com/supercharger.WMV

I don't have a procharger so I'm not absolutely sure, but that sure doesn't sound right. Sounds like something is grinding. Did you do the install yourself?

of course lol, i wouldnt pay someone to do somthing i could do my self

All i can recomend is to check the tension in the belt, make sure the belt isnt rubbing against anything, if the procharger has an idler make sure its not moving back and forth, tighten everything... im sure you gone throw all these steps, it doesnt sound like the belt is rubbing against anything......good luck

2003 Black , sunroof, leather,
splashguards, 8 wire Hypergrounding kit, 350Z intake duct, K&N filter.

It could be a number of things -belt tension, internal gear backlash or lubrication issue. Listening to the video, it sounded more like a lubrication issue. The C-2 charger has an internal oil pump (aeration type) that delivers oil mist to the chargers bearings/gears and it requires only 3 oz. of oil. Contact Procharger tech service dept. (913-338-3086) before you crank it up again. Goodluck and hope its only something minor. No matter what, you have a 1 year warranty.

SKYLINE 350GT, NISMO R-Tune.

that sound is normal its the whistle of the supercharger forcing the air in. At idle its loud like that but normal driving it get less noticable.

04 G35 Sedan Blk/Blk
Nissan Badges
Tein Basic(soon)

You're right ....there is a metalic clanking from the supercharger. It almost sounds like there is something loose that is laying against the motor or blower assembly. I have heard other ATI blower videos and they do not have that metallic sound...just the whistle.

Make sure there is not to much tension on the belts.
You should have about 1/4" play in the middle section of the belt (1/4" when moving the belt up and down)

You can also spray some WD40 on the belts when its running. Just a bit to lub them up.

Good luck. Doesnt sound to right though.

A colleague has an ATI, and the only sounds are the belts and the whistle of air. The grinding sounds like a bad bearing.

RainMeister
'04 G35C 6MT, diamond graphite, premium, nav, aero

The clank is not right. Mine does not do that.

Cpe 6MT/Aero/Prem/ATI/RT cats/Borla hdrs-catbcks/Nismo flywhl-cltch/TS-ECU/Tein flex EDFC/Stillen sways

Thanks for the advise, i sent it off to ATI to get rebuilt, and re Pulleyed (9psi) hehehe, getting my new fuel injectors tomorrow to keep up with more air, wish me luck