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Old 08-26-2012, 10:16 AM   #32
industrial
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Quote:
Originally Posted by 2forme View Post
I've reset my ECU twice thus far and still get the problem. Glad it fixed yours though.

I really think these vanes are the answer. I remember reading something similar on the Celica forums a couple years ago.

Correct me if I'm wrong, but I thought the purpose of a velocity stack was to improve the velocity of air entering a confined space (tube). That doesn't necessarily straighten the air out.

Companies shouldn't have to release 2 designs to accommodate tuned and stock setups. I looked at the stock intake and the vanes aren't all that thick. They wouldn't restrict any airflow. I know Cobb has a piece with both a velocity stack and vanes. On their website it's 195$ for the intake kit including this piece, but maybe I can find one used for cheaper to do some testing.

The unfortunate part is that, because we are so small in numbers, I doubt any resolution will occur. I also have the aFe Takeda intake on order. I'm hoping they included the vanes in their design, but I'm not holding my breath.

I'm definitely going to be getting some seat time with @Visconti, as soon as the vendors stop hogging all his time for their turbo kits. We will get to the bottom of this. A 3D printer would make this so much easier to test haha
You should really read the massive thread on Nasioc. Just get the car re-tuned for the intake once people know what they are doing.

Did you read about the guy that had this same problem with a tune and stock intake with the resonators taken out? Makes sense. It has to be an intake resonance problem that probably exists in every BRZ that runs without the stock resonators. Some setups will probably react more radically than others, like cars running the visconti tune. Even the subaru engineers said this car has issues with it. It's been said that's a reason for the torque dip that nobody can explain. When you took out the stock intake did you notice all the crazy helmhortz chambers?

Your best course of action might be to either wait for Visconti to get some time to really investigate the issue or contact TiC and see if they can help you out since they have fixed this issue in the past (with a tune).
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