My homemade catch can! Did i do it right??
Well i decided today to make a DIY catch can. So i started off with a compresser filter for a air compresser i got at walmart. This is how i hooked it up. I connected the one end right into the top of that black box where the pcv valve used to be. Then i took the other end and needed to do something for pre-turbo vaccum. So i took a small piece of piping and put a 3/8 fitting into it about a inch away from the turbo and about a inch away from my filter (aka metal screan). So i was curious to if this will get good vaccum for it to work propperly?? Here are some pics!
https://img.photobucket.com/albums/v...i/100_0809.jpg The hose coupler is connected directly onto the turbo. https://img.photobucket.com/albums/v...i/100_0805.jpg https://img.photobucket.com/albums/v...i/23aef2fd.jpg |
Re: My homemade catch can! Did i do it right??
get a better filter for engine longevity. you have it correct to have positive crankcase ventilation. good job
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Re: My homemade catch can! Did i do it right??
yea, im planning on it. I just got to clear up some room some how becuase that metal screan is actually tutching my dump tube right now. Its pretty cramped.
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Re: My homemade catch can! Did i do it right??
Hey its been a couple days of driving it with the homemade catch can and i havent really seen any oil build up in it yet? Is this normal? I just hope its getting good vaccum.
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Re: My homemade catch can! Did i do it right??
Im not sure if im 100% correct on this one, but I dont think you should be getting much oil unless there is a lot of blowby in your engine. It may be doing a good job of releasing pressure and gasoline vapors without filling up with oil.
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Re: My homemade catch can! Did i do it right??
No oil in there is a good sign, nothing to worry about. You don't even need to connect one side of it to the pre-turbo intake, because the vaccuum there is so small it is negligable. I just leave the other fitting on my catch can open to the air.
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Re: My homemade catch can! Did i do it right??
actually i read a very long article on this...
i had origionally planned on using a mid-80s electric vac pump for the MC as a vac for the venting of the crank case. BUT i guess i wan't gonna be the first with that idea, because without resistors and extensive wiring the GM vac would have too much vacuum and end up sucking out oil. So i read up on the second best method. Putting an attachment to the exhaust after the cat/test pipe with tthe exit facing the muffler causes almost the exact amount of vacuum that is acceptable. BUT running a catch can is a great idea so you don't burn off liquid oil and alarm yourself and others under hard acceleration. But from what i understand older domestics can gain about 30+ HP from having some decent vac to the crank case, so on hondas you'd expect something..but not really. If anything the engine runs smoother (so i read) and it helps to extend engine life, especially under boost. w00t |
Re: My homemade catch can! Did i do it right??
Yea you don't need any of that ----
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