I already posted about this in the Engine/Drivetrain forum but nobody has responded, which seems really strange considering 100's of people on this forum have intakes.

Anyway, I went to install a used Buschur intake pipe and filter today. Everything was going fine until I realized that in addition to the bov pipe, there are two additional lines running from the stock intake pipe. It looks like one goes to the valve cover and the other goes to the electronic boost control unit. The Buschur intake pipe does not have bungs for these lines to connect to. Most of the other aftermarket intake pipes don't have bungs for these lines either. MAP performace is the only vendor that I could find who sells a pipe with all three bungs.

The question is, what do I do with the two additional lines? Should I plug them, tap them into another location, or maybe drill additional bungs into the pipe? I would rather keep everything working like stock how it is meant so I am thinking drilling additional bungs is the ideal way to do.

Also, I know that one of the lines goes to the ebcs which controls boost. I have a mbc and plan to install it when I get tuned. I don't know if this changes anything or not.

Any advice would be greatly appreciated.

 

So some of this advice is due to personal feelings and some is personal experience. Sell the buschur intake and pick up something else, maybe Perrin or AEM or ETS or a pvc tube with a screen or a groupe of mcdonalds straws with a zip tie around them. Anything to spare your car the indignity of a buschur part.
The hose coming off the valve cover can be diverted to a catch can to help prevent oil carried by vapor to reenter your intake plumbing. The other hose will be negated when you install your mbc.

 

Haha thanks. I work near a McDonald's so maybe I will go that route.

Any more comments....

 

Spare yourself the indignity of listening to a fool..........that's better advise.

The hose coming off of the valve cover is a vent. This vent when hooked to the intake tube sucks oil and vapors out of the valve cover. This oil over time builds up in the FMIC and ruins it's efficiency, bad news. Just leave the hose hooked to your valve cover and route it down along the side of the engine and let it hang there. It does not suck in so there is no fear of something going into it and into the engine. You can hook it to a catch can if you like but just letting it hang down works too.

The other small line is the boost that is bypassed from the boost control solenoid and it can just be taken off the boost control solenoid and thrown out.

Enjoy the part and the power.

 

Keep the BR intake. Just call BR and describe what you see. They will help you out.

 

For the valve cover breather you can run a $4 filter directly on the valve cover, or use a catch can. I actually have a nice catch can I'm looking to get rid of for cheap!

For Boost control solenoid you are fine to just leave that line hanging somewhere, it's just a bleeder line, and if you do switch to a MBC is does go away.

 

Thanks for the replies.

jid2, shoot me a pm regarding your catch can. I will probably just build one but let me know what kind you have and what you are asking.

 

If you want a proper catch can (should be dual on this car) and dont mind parting with some cash, the Saikou-Michi DC3 catch can is fantastic, I have one and mounted it up high and couldnt be happier.

 

Actually if you want a proper catch can, this is the only one built for the EVO in my opinion:



https://secure.buschurracing.com/cat...oducts_id=1268

 

My father-in-law is a sheet metal worker so I am thinking about asking him to help me build something similar to the buschur unit. I am going to build a dual setup like the DC3.

 

That's funny, just because someone has an opinion that parts are better than yours there a "fool"?



Wow.


Keep in mind that you have lost the circulation functionality of the OEM setup.. When the IM is at vaccuum, the PCV opens and ***fresh*** air is pulled from the intake pipe, through the VC breather, into the crankcase, out the PCV and into the IM. Under boost, the PCV closes (it's a special check valve), and all the blowby past the rings exits through the VC breather into the intake pipe.

Furthermore, remember that your PCV catchcan will be seeing the same pressures as your intake manifold. You could use a checkvalve or simply make sure that your catchcan can hold the pressure without leaking.

If you eliminate any of that system, you're defeating its purpose, If you leave the VC breather open to atmosphere, the air that gets sucked in at vaccuum (idle, light cruise, when shifting) is unmetered and you run lean for a bit.

I guess unless of course you're running a race car, then you would not really need to worry about the system working properly, and probably would be changing the oil every run.

Btw, what did you do a search on the forum for you're name?

 

A difference of opinion is fine but stating facts on how something should be done or how ours isn't ported correctly without testing to back up your words.....makes you a fool.

You are also INCORRECT about the PCV function and what gets pulled. NO air gets pulled across the head through the vent and into the PCV, not happening. There is never air pulled in through the valve cover breather hose into the engine.

 

We also have an intake that includes all the bungs needed for a factory install.

We offer the boost controller solenoid bung as an extra due to most people running an aftermarket boost controller and eliminating this solenoid.

The PCV Bung is included by default. This allows you to run the factory pcv breather line to the intake. You can also plug the bung and run a catch can if you desire.

If you have any questions, let me know!

Thanks,

Michael

 

Thanks for the info. Why would you plug the bung if running a catch can? I thought the catch can connects to the same spot.

For the time being I am running the ebcs so I will have to find a bung for this line and the pcv line. Where do you buy the bungs? NAPA?

 

You can run an inline catch can (I recommend this and not plug the bung) or you can run a catch can with no return line, vent it and plug the bung.

If I remember correctly we had a customer that didn't want to run the bung on his intake on his evolution 8 and Buschur wouldn't tune the car because of no pcv recirc and bigger cams? Feel free to correct me if I'm mistaken.

Thanks,
Michael