Re: catch can set-up i have searched!!!!!
 

that's what I thought long time ago ... but ended up with the fact that vacuum is not needed so much. Sure it helps, but spending money for a vacuum pump is not worthed.

if you don't have oil poping up from the oil pan gasket, your fine with an open PCV setup. If you have such problems, then run to the exhaust. I have a 5 page long thread on .turbod16.com about turbo and the pcv system .. check it out to see how different systems behave

Re: catch can set-up i have searched!!!!!
 

did you forgot how the stock pcv system is? the vapors that pass through the IM are just simply reburned in the combustion chamber. no harm done. if your concerned you can add an inline filter.
using a pre-turbo slashcut sucks because then your running it through your turbo thus decreasing its life. again an inline filter works but i'd rather just send it out the exhaust.

agreed, open is better than nothing but you can't argue vacuum does'nt help performance. vacuum pumps are outrageous but if you look at my setup i posted above, its easy to setup a great vac source using the motor(2 vac sources to be precise)


-Luke

Re: catch can set-up i have searched!!!!!
 

Here's how I did it, there is good vacuum in boost and vac. and it works great for me, but I just got alot of flaming for it.

https://www.homemadeturbo.com/forum/...?topic=69521.0

Re: catch can set-up i have searched!!!!!
 

Looks pretty nice. Do you have a diagram of how it works? I'm having a hard time figuring it out from reading your description.

Re: catch can set-up i have searched!!!!!
 

Here is the one I didnt make...
http://img.photobucket.com/albums/v4...3/DSCN2115.jpg

As you can see, red hose is coming from a drilled out PCV valve, black hose is coming down from the valve cover breather, both are hovering right above the tranny, both are vented with no catch can and the engine gets great ventilation, I will be installing a 12V air pump to assist with vac, basically it will be attached (suction side) to a chamber where both hoses will plug in to. it will then get amazing vac in boost and in idle.

Re: catch can set-up i have searched!!!!!
 

well, I guess you don't know much about the PCV then .. And I assume you don't even have a turbo ...

1. Stock PCV system lets oil as well as vapours to get into the comb. chamber. becasue the vacuum from the intake manifold at idle is too strong. The oil there (which you can see if you unbolt the intake manifold and take a look inside) is the bad part, becasue it makes the explosion suitable for detonation (you find that out when you start advancing the timing). People recommend installing a catch can on non-turbo cars too, due to that same oil going into the comb.chambers, and making crappy explosion, which causes loss in power. Detonation - that's the harm when you start making more power out of an engine.

2. you can not just install an inline filter - it won't work. (Shall I explaing why? ). That's what the catch cans are for.

3. using the turbo inlet as a source of vacuum does not decrease the turbo life. The oil that's being sucked with the vapors even help for the lubrication of the compressor. If you're concerned with the temperature of the vapours causing compressor seals to go bad, then I'll remind you that all turbos work in the heat anyways. Also those vapours have almost no contact with the seals (take a turbo apart, and you'll see why). However, that bad part (again) is when that oil gets burned into the engine ...

4. Don't even start with the mith that the oil from the PCV could seal scratched cylinders inside the comb. chamber, and therefor provide better compression and rise the power a bit .... because that tecknique is used only when you do a compression test to check the condition of your pistons/rings/cylinder walls

Re: catch can set-up i have searched!!!!!
 

yep..you guessed right, i don't even have a turbo.. ::)
http://www.lukekailburn.com/media/en...l/100_1399.JPG

the stock pcv system uses the intake manifold as a vacuum source because A PCV SYSTEM WITH VACUUM IS BETTER THAN OPEN AIR. the vapors that ar passed through the IM are just reburned. while i AGREE with you that it is not ideal, you certainly see honda motors with over 300K miles runing around don't you. so obviously the vapors and oils are not ruining the engines. when you build a motor or boost it you should change the pcv system

most HMT catch cans are typically filled with steel wool pads..not the greatest filter but they do work.

using preturbo intake DOES NOT HELP OIL YOUR TURBO! when you oil a turbo...where do you send the oil through??? through the center ------- cartridge. where do you NOT want oil and vapors..? ALL OVER YOUR ------- COMPRESSOR WHEEL. jeesus dude think about it. the oil that lubricates the turbo is behind your compressor and exhaust wheels..seperated with seals. a preturbo intake vacuum source sends those oils and vapors to the opposite side of the seal..so no..it does not help oil your ------- turbo

and no i don't believe that oil from pcv helps seal scratch cylinder walls, so we agree on that

have a nice day,

-Luke

Re: catch can set-up i have searched!!!!!
 

Let me address each of your misunderstandings.

1.You're mostly right. You dont want tons of oil in your combustion chamber. Its done this way mainly for an emissions standpoint. However with high power cars there tends to be more blowby, hence wanting a catch can.

2. Wha? He is talking about a catch can, with a supplemental filter between the catch can and the intake manifold. Mind you, at this point most of the oil has been separated and and trapped in the catch can.

3. Dude, you're wrong. It doesnt lube the turbo unless its in the center cartridge. All its going to do going thru the intake of a turbo is gunk it up, and gunk up your charge pipes. You DO NOT want that, trust me.

4. he wasn't arguing that.

Settle down, just because you misunderstand his diagram and what he's saying doesnt give you right to assume he's the idiot. Stop being so ignorant.

Re: catch can set-up i have searched!!!!!
 

Thanks its nice to see sombody likes it, im too lazy to draw up a diagram right now but I'll work on it.

I'm no expert and maybe i'm just crazy, but I have to dissagree with just the dump tube from the black box to the ground, sure it wont let pressure build up in the crankcase, but I'm sure honda designed it to work off of vacuum for a reason so thats why I feel better just modifying the pcv setup so the crankcase is always in vacuum, its cheap and simple if you just sit down, draw it out and think about it for 5 mins.

Re: catch can set-up i have searched!!!!!
 

I guessed right - you don't know much about the PCV.... My assumption was wrong ...

I only said that the oil that gets in the compessor helps for the lubrication, becasue that oil gets everywhere in the compressor howsing, and therefore goes on the shaft of the turbo behind the compressor wheel, and that's where it only HELPS a little for the lubrication. Damn, I have to explain like to a 6-year-old ...

Here's another guess:
- your car overheats like a steam roller when you boost for more than 30 min.
- you have an oil leak on your breather on the valve cover


good luck