oil catch can set up i put together....

[all_motor_mike]

i made this for a customer who is having a little blow by issue right now. no need on fixxing the blow by issue because he will be getting a new powertrain very soon here and the catch can will also be going on that setup, it is definitely doing its job thats for sure. anyways i thought that it turned out very show off worthy and i figured i would post it here. what u guys think?

AMM

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[JusMX141]

Very functional; quite bulky, however.

 

[turbosax2]

I've always wondered, does the placement of the nipples on the valve cover matter?

 

[all_motor_mike]

I've always wondered, does the placement of the nipples on the valve cover matter?

not at all.......... i put them in the easiest place i could. there is no baffling in front of the fittings under the valve cover but it really doesnt matter because its a crank case return set up.


mike

 

[Zex4g63]

not at all.......... i put them in the easiest place i could. there is no baffling in front of the fittings under the valve cover but it really doesnt matter because its a crank case return set up.


mike

Where did you plumb it back in at?

 

[all_motor_mike]

Where did you plumb it back in at?

for now its "T"ed into the turbo drain line but when we redo the everything in a fews here i think my boss is gonna wanna tap into the pan somewhere so it doesnt have to share the turbo drain


mike

 

[turbosax2]

Ok, I must be retarded because I can't figure out how this whole system works. Can you please explain it? I thought the 2 lines from the valve cover were to release crankcase pressure and the catch can was just to catch some excess oil coming out. But now that you said the oil goes back to the turbo drain line that just threw me for a loop. Please explain!

 

[erald01]

Not bad, but i have to say there is no need to spend a lot of money on a catch can when you can just put a one of those see through fuel filters and it will do the job. Its very creative what you have done but i must ask...did you spend at least 100 buck on making the whole thing including the niples and the hoses, with the fittings?

 

[all_motor_mike]

Ok, I must be retarded because I can't figure out how this whole system works. Can you please explain it? I thought the 2 lines from the valve cover were to release crankcase pressure and the catch can was just to catch some excess oil coming out. But now that you said the oil goes back to the turbo drain line that just threw me for a loop. Please explain!

on high hp setups there is alot of crankcase pressure when going down the track which blows up through the block, through the head and out those little nipples on your valve cover which sends the crank case blow by and oil vapor back into your intake system contaminating it and caoting it with oil. the whole purpose of this is to send that oil to a catch can and let the crank case pressure vent through the filters and then when the race is over depending on how much oil u blew out it, will then drain back to your pan when the car is turned off or at an idle. if there was no oil pan drain back u would have to drain the can ever so often and keep filling your engine with oil to compensate for what u lost in the catch can.


AMM

 

[turbosax2]

I had just never heard of using a return system before. Is there any other advantages/disadvantages to using a return system besides not having to manually empty the can?

 

[all_motor_mike]

Not bad, but i have to say there is no need to spend a lot of money on a catch can when you can just put a one of those see through fuel filters and it will do the job. Its very creative what you have done but i must ask...did you spend at least 100 buck on making the whole thing including the niples and the hoses, with the fittings?

theres more than 100.00 in materials alone, everybody isnt cheap u know . try telling one of these guys making 800-900 whp to use a little see through fuel filter for their oil catch can set up and see what they say.


AMM

 

[all_motor_mike]

I had just never heard of using a return system before. Is there any other advantages/disadvantages to using a return system besides not having to manually empty the can?

what ever u lose u have to fill your engine back up with (and im talking about new oil or u could always reuse the collected oil if u wanted to) but with how much this would have to take place its just much easier to do a drain back.


AMM

 

[turbosax2]

what ever u lose u have to fill your engine back up with (and im talking about new oil or u could always reuse the collected oil if u wanted to) but with how much this would have to take place its just much easier to do a drain back.


AMM

Ok, thanks for the info!

BTW, looks great!

 

[all_motor_mike]

Ok, thanks for the info!

BTW, looks great!

no problem and thank you sir

 

[erald01]

I am making 412 hp on mine and i use the fuel filters, but even if you make 900 hp, all it does it catches the oil spitting out from the pressure and protects from getting oil into your intake. Btw i dont think dsm tunners are cheap, we are just broke at the end

 

[all_motor_mike]

I am making 412 hp on mine and i use the fuel filters, but even if you make 900 hp, all it does it catches the oil spitting out from the pressure and protects from getting oil into your intake. Btw i dont think dsm tunners are cheap, we are just broke at the end

u would be surprised at how much oil can blow out and collect when your making really big hp. i didnt mean to call u or dsm'ers cheap.......... some people just want the best parts that they can get in some areas (not saying mine is the best but u know what i mean............ a bit better than a fuel filter)


AMM

 

[JusMX141]

I made a homemade catch can for my buddy's 2G which was suffering from a considerable amount of blowby as well. We routed both stock vent lines into the sides of the catch can which was sealed on the bottom and had a removeable cap with a breather filter on top. After a complete season of racing there was barely enough oil in the bottom of the canister to cover a quarter if it were laying down in the bottom.

This setup is great, but it's a little overkill- unless, perhaps, your engine is SO worn that it's pushing massive amounts of oil. If that's the case, a rebuild would be cheaper than building such an extensive "catch & release" crankcase vent system.

It almost looks like it's meant to be the return for a dry sump oil system that is used on some insanely fast drag cars.

 

[all_motor_mike]

I made a homemade catch can for my buddy's 2G which was suffering from a considerable amount of blowby as well. We routed both stock vent lines into the sides of the catch can which was sealed on the bottom and had a removeable cap with a breather filter on top. After a complete season of racing there was barely enough oil in the bottom of the canister to cover a quarter if it were laying down in the bottom.

This setup is great, but it's a little overkill- unless, perhaps, your engine is SO worn that it's pushing massive amounts of oil. If that's the case, a rebuild would be cheaper than building such an extensive "catch & release" crankcase vent system.

It almost looks like it's meant to be the return for a dry sump oil system that is used on some insanely fast drag cars.

right now it has enough blow by to blow the dip stick tube out and spray oil on the under side of the hood............. and after the rebuild its going to be making around 700 hp so i think it will be well suited where its at. and in no way in hell is rebuilding the engine cheaper than this catch can set up


AMM

 

[dsm-onster]

Not bad, but i have to say there is no need to spend a lot of money on a catch can when you can just put a one of those see through fuel filters and it will do the job. Its very creative what you have done but i must ask...did you spend at least 100 buck on making the whole thing including the niples and the hoses, with the fittings?

I have enough vacuum to crush my see-through filter casing. I have the system setup properly, with a Mitsu PCV valve and automotive-use check valve. I wish I had a digital camra. . .

 

[DSMunknown]

Are the SS lines and AN fittings really necessary? WTF I'm surprised air filters are being utilzed. I would still recommend re-routing the catch can back to the intake pipe, regardless of someone's particular (custom) setup.

IMHO, the entire thing is way too bulky.

 

[all_motor_mike]

Are the SS lines and AN fittings really necessary? WTF I'm surprised air filters are being utilzed. I would still recommend re-routing the catch can back to the intake pipe, regardless of someone's particular (custom) setup.

IMHO, the entire thing is way too bulky.

no the stainless lines arent necessary i could have used rubber hose but the owner wanted more bling factor. also i didnt have to use the AN fittings i could have used barbed fittings that the rubber line just pushed onto but again owners decision. what would i use instead of filters in a return system to vent the blow gases??? (this a drain back set up so it needs to stay contaminate free while still venting). now what is your reasoning that u would reroute it back to the intake.............. what good will that do you?


AMM

 

[tsiboosted]

no the stainless lines arent necessary i could have used rubber hose but the owner wanted more bling factor. also i didnt have to use the AN fittings i could have used barbed fittings that the rubber line just pushed onto but again owners decision. what would i use instead of filters in a return system to vent the blow gases??? (this a drain back set up so it needs to stay contaminate free while still venting). now what is your reasoning that u would reroute it back to the intake.............. what good will that do you?


AMM

I believe what he is trying to say; and please correct if I am wrong here DSMunknown, is that "most" catch can setups out right now are setup with the catch can being placed between the crank case and the intake system. Something like mine here:

You must be logged in to view this image or video.

Now mine just goes from the crank case with the tubing, into the Catch Can then another tube goes from the catch can back into the Intake system. To my knowledge of what a catch can's job is, is to "catch" the oil from being circulated back through the Intake and getting sucked into the turbo. That is how I understand it. I could be wrong.

I thught I was wrong once.....but I was mistaken.

 

[DSMunknown]

no the stainless lines arent necessary i could have used rubber hose but the owner wanted more bling factor. also i didnt have to use the AN fittings i could have used barbed fittings that the rubber line just pushed onto but again owners decision. what would i use instead of filters in a return system to vent the blow gases??? (this a drain back set up so it needs to stay contaminate free while still venting). now what is your reasoning that u would reroute it back to the intake.............. what good will that do you?


AMM

Read through the first couple pages (or so) of this thread for a more indepth reason as to why one would want to recirculate the crankcase ventilation tube back into the intake track.

Obviously, as soon as you said this was for a customer, I knew immediately the customer had asked you to do it his way. This is just way over the top for me. Personally, I would have punched him in the face and done it the way I wanted to (and for good reason, too). Secondly, The inside diameter of the SS lines are definately larger than that of the OEM fitting (that was on the opposite side of the cam gears). It's nice that he was concerned about relieving pressure from the crankcase, but this is well overboard. Think of it as putting a 9 inch turbo-back exhaust system for a peuny T25.

For shits & giggles, I would love to know what size fittings and line you utilized in this setup.

I believe what he is trying to say; and please correct if I am wrong here DSMunknown, is that "most" catch can setups out right now are setup with the catch can being placed between the crank case and the intake system. Something like mine here:

You must be logged in to view this image or video.

Now mine just goes from the crank case with the tubing, into the Catch Can then another tube goes from the catch can back into the Intake system. To my knowledge of what a catch can's job is, is to "catch" the oil from being circulated back through the Intake and getting sucked into the turbo. That is how I understand it. I could be wrong.

I thught I was wrong once.....but I was mistaken.

Yeah, kind of. I just made the comment because I am deadset against air filters on catch cans. I also believe the crankcase vents (aka the fittings on the valve cover) are over-sized. Another nipple (similarly sized to the OEM nipple) would have sufficed. That custom setup is just ridiculous.

I was also hinting at the fact that venting crankcase pressure into the air isn't the most ideal. The air gets both pulled and pushed from the crankcase nipple; not taking that into account isn't the smartest way to go about things.

BTW Eddie, thanks for posting up those great photos over at DSM Purity. Nice shots. Kudos.

 

[tsiboosted]

Thanks Anthony. No big deal really. I always like sharing my DSM with other DSM'ers.

 

[sbiggi]

I have my catchcan drain plumbed back in where the balance shaft inspection bolt was.
I threaded some hard break line, and screwed it in.

On a couple passes when the engine was fairly new, it filled the catchcan up and puked oil out. Not sure if I had alot of blowby, or if I had to much oil in the motor. Hasnt done it since then though.