Optional Breather Hose Vent Added to CorkSport TIP

[Gwynne]

For those of you that have received the TSB Fix 01-002/11 for the smoking turbo, we have added in the option to select the CorkSport Turbo Inlet Pipe with a breather hose vent for the crankcase vent from the valve cover to the turbo inlet pipe.



When purchasing, simply select Yes - Received Mazda Service Bulletin Fix 01-002/11 in the vent breather hose option to get the modified TIP.

[Redline143]

I accidentally ordered your TIP with the breather fitting and don't need it after all. I plugged the end of the fitting with a rubber stopper, but now it makes a whistling noise (similar to what a pipe organ would) because air is quickly passing by the bottom of the fitting (which is mostly hollow) where the cylindrical breather hose shaft meets the main tube. I'm thinking of hack-sawing the fitting off, sanding it down, covering the resulting hole with something, then using multiple layers of aluminum tape to seal it. Without the hollow tube the whistling noise should stop. Thoughts?

[Dmurray06]

Originally Posted by zack143 I accidentally ordered your TIP with the breather fitting and don't need it after all. I plugged the end of the fitting with a rubber stopper, but now it makes a whistling noise (similar to what a pipe organ would) because air is quickly passing by the bottom of the fitting (which is mostly hollow) where the cylindrical breather hose shaft meets the main tube. I'm thinking of hack-sawing the fitting off, sanding it down, covering the resulting hole with something, then using multiple layers of aluminum tape to seal it. Without the hollow tube the whistling noise should stop. Thoughts?

You won't get rid of the whistling noise either way. Cork sports TIP will whistle either way, which sounds pretty sweet if you ask me.

[Redline143]

Originally Posted by Dmurray06 You won't get rid of the whistling noise either way. Cork sports TIP will whistle either way, which sounds pretty sweet if you ask me.

Really? I'm almost certain that I understand the physics causing the noise. First, it only happens when a high volume of air is going through the intake, i.e. when I have the "pedal to the medal" and am hitting max boost. Second, the pitch (the actual note produced) never changes, regardless of engine speed. For these reasons, I'm almost certain the noise is produced by air passing underneath the emply clyindrically shaped breather port. It's the same type of noise produced, for instance, when blowing over the top of an empty soda bottle. Now there is also a metalic sound that I hear, especially when letting off the throttle when the blow-off valve is actuated. That particular sound has a metallic sound to it, and I agree, it is cool. I think, however, that removing the breather port will eliminate the whistling sound, yet keep the metallic sounds the intake otherwise produces, such as the blow-off one I described.

Does anyone else care to weigh in and share what they think is causing the whistling noise and how to eliminate it? I really don't think the intake would make this noise without the extra breather port, but I could be entirely wrong...

[Dmurray06]

Originally Posted by zack143 Really? I'm almost certain that I understand the physics causing the noise. First, it only happens when a high volume of air is going through the intake, i.e. when I have the "pedal to the medal" and am hitting max boost. Second, the pitch (the actual note produced) never changes, regardless of engine speed. For these reasons, I'm almost certain the noise is produced by air passing underneath the emply clyindrically shaped breather port. It's the same type of noise produced, for instance, when blowing over the top of an empty soda bottle. Now there is also a metalic sound that I hear, especially when letting off the throttle when the blow-off valve is actuated. That particular sound has a metallic sound to it, and I agree, it is cool. I think, however, that removing the breather port will eliminate the whistling sound, yet keep the metallic sounds the intake otherwise produces, such as the blow-off one I described. Does anyone else care to weigh in and share what they think is causing the whistling noise and how to eliminate it? I really don't think the intake would make this noise without the extra breather port, but I could be entirely wrong...

Yea I understand what your saying. Just saying because Corksports TIP is aluminum it's gonna whistle either way. If I understand you right, your getting a different sound coming from the blocked breather port.

IMO if its new, message Corksport see if their is anything they can do. If not I'd post a WTT and see if someone with a genwon intake that what's the breather option wouldn't mind trading.

[anavrinIV]

Originally Posted by zack143 Really? I'm almost certain that I understand the physics causing the noise. First, it only happens when a high volume of air is going through the intake, i.e. when I have the "pedal to the medal" and am hitting max boost. Second, the pitch (the actual note produced) never changes, regardless of engine speed. For these reasons, I'm almost certain the noise is produced by air passing underneath the emply clyindrically shaped breather port. It's the same type of noise produced, for instance, when blowing over the top of an empty soda bottle. Now there is also a metalic sound that I hear, especially when letting off the throttle when the blow-off valve is actuated. That particular sound has a metallic sound to it, and I agree, it is cool. I think, however, that removing the breather port will eliminate the whistling sound, yet keep the metallic sounds the intake otherwise produces, such as the blow-off one I described. Does anyone else care to weigh in and share what they think is causing the whistling noise and how to eliminate it? I really don't think the intake would make this noise without the extra breather port, but I could be entirely wrong...

have you ever though that it's the sound of the turbo spooling? It becomes very apparent with this TIP.

[Ms3_Miami]

Originally Posted by anavrinIV have you ever though that it's the sound of the turbo spooling? It becomes very apparent with this TIP.

+1

A friend had the corkorsport tip in his genpu without the brether fitting and it still whistled.Im sure that all corksport tip's do that.

[Redline143]

Originally Posted by anavrinIV have you ever though that it's the sound of the turbo spooling? It becomes very apparent with this TIP.

Yeah, I did consider that the sound may be part of typical turbo operation. For the reasons I mentioned above, though, particularly that the pitch is always the same, I don't think it's the case. It would stand to reason, for instance, that as the turbo spooled up the pitch would become higher and higher as it spun more rapidly, you know?

[08.5MS3]

For what it's worth, I have the breather port on my Nano blocked off with no difference in sound.

[faeker]

the stock turbo will sound the same once it boosts. it doesn't change tone. it's the turbo plain and simple.

[anavrinIV]

It really doesn't. This little turbo only spins so fast and once it's going, it sounds the same...just a hissing noise.

you can cut it off if you want but the sound will still be there.

[Ms3_Miami]

Its quite a nice sound.. idk why u want it removed

[breakfstincluded]

I wonder if it's an important consideration at all for that breather hose to be...

1. As short as possible

2. Going downwards from one side to the other without any dips

Would there be consequences if not?

[anavrinIV]

Originally Posted by breakfstincluded I wonder if it's an important consideration at all for that breather hose to be... 1. As short as possible 2. Going downwards from one side to the other without any dips Would there be consequences if not?

1. I think this is important because (with the corksport full intake and supplied breather hose) the hose will kink if it's too long, and under boost your crank case will be even harder to vent, which you don't want. both of the stage 2 cs intakes I've installed have required the supplied hose to be cut ~3" or so.

2. given the routing of the stock system, it seems irrelevant. stock system is basically level, and pre-maf which is good under vac but bad under boost with the blow-by and possible oil misting

[breakfstincluded]

What made me curious is just why the stock hose is so stiff opposed to just using a thicker hose that also won't kink.

Particularly on the revised valve cover where the valve cover nipple now angles downwards instead of going straight out.

People of said what's important in this TSB fix is that the breather on the intake is reloacted to the tip from the sri.

But after getting my revised valve cover and tip, I went back to my aftermarket tip, and my smoking issue was indeed still fixed.

[anavrinIV]

there's probably something different internally on the VC too, but no way to be sure unless you compare yours to a non-updated one

[breakfstincluded]

I wonder about the dips also because in OCC instructions, it's often reccomended to pay attention that that the hose-ing is downward and straight as linearly as possible.

[jacarper]

how exactly do i know if I need the vent breather hose? I don't know what it does.

---:edit: thanks for all the groans, just a noob here who didn't actually want his question answered.

[SpencerC]

Originally Posted by jacarper how exactly do i know if I need the vent breather hose? I don't know what it does. ---:edit: thanks for all the groans, just a noob here who didn't actually want his question answered.

I understand the confusion, we get this question alot, the reason you got groaned though is because you didn't search for the answer. They are pretty rough here! Anyway, here is the info.

"Optional crank case breather hose available for turbo vehicles affected by Mazda Service Bulletin #01-002 /11 that received a factory fix for turbo smoking due to insufficient crank case ventilation. This only applies to 2007-2009 Mazdaspeed 3 and CX7 built before July 2008. Click Here to see the whole TSB from Mazda. Page 3 shows a diagram on what to look for to see if your vehicle has had the TSB."

Here is the service bulletin: http://www.corksport.com/images/add_...001-002-11.pdf

Easy answer: If you have 2007-2009 that has service records of being taken to Mazda for the Bulletin fix... then you need it... If you have any other year, or never took it for the bulletin, you don't need it.

Best answer... If you buy our Stage II intake kit, it doesn't matter whether you have it or not!

[jacarper]

Originally Posted by Spencer@CorkSport Best answer... If you buy our Stage II intake kit, it doesn't matter whether you have it or not!

thank you, too bad i just bought the stage 1 inatke

[Hargarbl]

Ouch, only 2 posts, one of which is a resurrection and on top of that you get groaned 5 times.