I just got my first scion and it came with a turbonetics turbo already on it. I'm having almost a scraping flutter sound when i let off the accelerator and I'm lost on what it might be. HELP!!!!!!!!

 

what does that even mean? you have to be more specific or just throw up a video.

 

There is an ENTIRE section dedicated to turbo's on this site, I suggest moving this there for better answers and maybe posting a better description.

 

blow off valve...

 

If I'm interpreting your description of the sound correctly, it's the blow off valve. Very normal sound for a turbocharged car. If you're that worried about it post up a video or sound clip here and someone can tell you for sure.

 

Had the turbonetics kit on my car. Entirely normal. If you just bought a tC with a turbo kit on it and aren't well versed in all aspects of forced induction, you just made a mistake. Better break out the books!

 

Yea im going to be posting a video and so far the research that I've done tells me most likely it's the bov, but I'm not quite sure if i need to tighten, loosen, or just get a new spring all together in the bov.

 

ok well i just went out and tried adjusting the screw from as low as it will go to as high as it will go but still makes the flutter sound.... also took the bov all the way off to check if the spring was working right and it had nice compression and felt good. I'm debating on trying to find a greddy type s to put in. Good idea or bad idea?

 

Just keep the one you have, it's working perfectly fine. If you want the whistle or the whoosh instead, plan on spending a couple hundred bucks buying a new BOV that dumps atmospheric instead of recirculated and having a new flange welded in place on black chrome coated aluminum piping. Loosen it up 80% of the way and leave it. Post some pics up of the engine bay. You may need some more pointers if you bought the car with the kit already installed.

 

Read up about turbos and the way they work. Stop messing with something that's not broken or you will end up with something that IS broken. It's working completely fine, and no where did anyone suggest to mess with it. Not being rude, just trying to help you save a motor.

 

I changed over the the Synapse BOV with my Turbonetics kit and it sounds and drives much better. The Raptor is horrible. Type S is ok too, just make sure you get the real thing and not the china version.