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Catch can? Do you have to?

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Old 09-17-2013, 07:44 AM
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Tirefire, is this the best way to contact you?

Does your can look like this?


AN fittings are not a necessity, and if you got a boosted can you should not have any pressure in the system. After all that is the entire point of it. Unless the relief valve is stuck (that would be a first) there really is no way for it to malfunction.

Care to share a pic of the install to me?

Hopefully anyone that has any questions about these knows how to contact me.
Old 09-17-2013, 09:16 AM
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In for more info. I will be picking up a MM catch can this winter for my 76mm build on my s10.
Old 09-17-2013, 09:29 AM
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Mighty Mouse I'm out of town at the moment so I cant send you any pics but I do believe that the way my can looks but its chrome. I really didnt think it was an issue I just thought it was the fittinigs..
Old 09-17-2013, 09:49 AM
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well let me know what you find when you are able to review it.

your 'tuner' has defeated the factory pcv system with his breather, and all associated beneifits and wants to up-sell you to modifying your valve covers.

for the most extreme cases of crank case pressure i also offer an adapter solution to mount my boosted valve to the oil fill tube (but like the one on my cans, it is exit-only, so you retain stock-like pcv function)

Old 09-17-2013, 10:16 AM
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That sounds like something I might need man. The valve cover thing was just something he does to his cars and advised me that I might want to do on my own. He lives 600 miles away from me so sending my valve covers isnt going to happen. Let me know how much that adpter costs I need one. Thanks
Old 09-17-2013, 01:22 PM
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I have run the exhaust evac for along time and wouldn't give it up. No catch cans, no vapors, clean oil, and very clean install

Old 09-17-2013, 04:29 PM
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pm'd you tirefire
Old 09-17-2013, 06:24 PM
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Originally Posted by rotary1307cc
I have run the exhaust evac for along time and wouldn't give it up. No catch cans, no vapors, clean oil, and very clean install

Do you just have the exhaust check valve in the down pipe, and it sucks from the valve cover? I like the idea of getting rid of a catch can.
Old 09-17-2013, 06:41 PM
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Yeah I have the two moroso check valves installed into the exhaust right behind the transmission.

I have my valve covers baffled, before I did that I would get some speckles on my bumper since it was a open hole out the cover right over top a rocker

Now there is nothing what so ever.

It works just fine with the front cutout open too. I have zero sign of high crank pressure, no oil leaks at all

The -12 braided slips right onto the check valves
Old 09-17-2013, 06:50 PM
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Thinking about it then cutout I have probably is what allows it to work well for me

Small diameter pipe so there is always high velocity of gas through it

But under load the cutout keeps high pressure from building in the the exhaust but still leaves a good velocity of gas through it

It is strange, even with the front dump open at idle there is a lot of exhaust flow through the full length exhaust
Old 09-17-2013, 07:31 PM
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I wonder if I could run one from my valley to my dp. I run a single -12 to my catch can. I might try it.



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