Catch cans ? - Honda Prelude Forum

Rasmusm · 12-06-2011, 02:21 PM

Hey

Im about to finish my all motor h22 build
But I'd like to get my hands on a catch can, instead of having all that oil running back into the intake manifold.

What do you guys suggest i buy?
Not really sure what brands are good, or any better than others

Thanks all,
Regards from Denmark
/Rasmus

TypeT · 12-06-2011, 03:07 PM

you dont really need to go with brands on this one, theyre just cans, not any hitech engineering things.

ebay is way to go or then DIY

or
Circuit Sports oil catch tank

AllMotorBB6 · 12-07-2011, 01:14 PM

Quote:

Originally Posted by TypeT

you dont really need to go with brands on this one, theyre just cans, not any hitech engineering things.

ebay is way to go or then DIY

or
Circuit Sports oil catch tank

Start making real power and you will retract that statement.

TypeT · 12-07-2011, 02:54 PM

^ then enlight us how these differ from each others?
material/size-matters arent acceptable answers...

that tube can leak, but you can block that in all of them... or are you talking about that inlet filter design...? or ventilation? seller should know those things if you just ask (some just look fancy, others might even work properly)

Slow@ssLuda · 12-07-2011, 04:16 PM

Quote:

Originally Posted by AllMotorBB6

Start making real power and you will retract that statement.

So true, get the Moroso one from Summit.

I run a 2 can setup on my SR20, I was blowing the dipstick out on the dyno with the Circuit Sport set up but that was at 470hp.

julyaric720 · 12-08-2011, 12:38 AM

Just what I needed, thanks a lot.

Rasmusm · 12-08-2011, 01:12 AM

Thanks, i knew that i shouldnt cheap out on this

Rasmusm · 12-13-2011, 12:02 PM

Slow@ssLuda - Where did you buy that moroso catch can?
If you have a link i'd be happy

Edit: ok after checking summit I found thisMoroso 85470 - Moroso Dry Sump Breather Tanks - Overview - SummitRacing.com

Is this the right one?
Also will this be the right way to do it?
PCV -> moroso -> back to intake ?

zfinatic · 12-13-2011, 02:39 PM

yup pcv/can/intake.

not familiar with that can but it only looks one way? dosent look like it feeds back to the intake?

Rasmusm · 12-13-2011, 11:43 PM

Quote:

Originally Posted by zfinatic

yup pcv/can/intake.

not familiar with that can but it only looks one way? dosent look like it feeds back to the intake?

Yea hm looks like that.. Not sure what to do with the tube that should go to intake?

AllMotorBB6 · 12-14-2011, 02:26 PM

Quote:

Originally Posted by TypeT

^ then enlight us how these differ from each others?
material/size-matters arent acceptable answers...

that tube can leak, but you can block that in all of them... or are you talking about that inlet filter design...? or ventilation? seller should know those things if you just ask (some just look fancy, others might even work properly)

You could always post less and do more reading instead.

When you figure out why I have over 400 into a "catch can" setup, feel free to post.

Why run the hose back to the intake when you dont have to?

Rasmusm · 12-14-2011, 11:53 PM

Thanks, i read a long topic on hondatech, cant remember if it said anything about just blocking the hole on the intake.

But I think thats what im gonna do. What about the tube from air filter to valve cover? I guess it sucks air into the valve cover, so wont be neccesary to can it?

Slow@ssLuda · 12-16-2011, 04:29 PM

If you run the moroso can you need to take you valve cover off and get a -10 bung welded into it. So you will also need.
-10 90 degree fitting
-10 strait fittinng (for the can)
5 feet for braided -10 hose.
Bolt the catch can on the fire wall where ever you like, put bothe fittings on and then cut your hose to length.
As for the intake nipple just plug it. It's the stock breather setup, it pulls the air out of the head and recirculates theair back through the intake mani.

Slow@ssLuda · 12-16-2011, 04:40 PM

When I get home tonight I'll find my old phone memory card and post pictures of my prelude setup.

Rasmusm · 12-17-2011, 05:24 AM

Quote:

Originally Posted by Slow@ssLuda

When I get home tonight I'll find my old phone memory card and post pictures of my prelude setup.

Thank you very much,

I'd like to see those pictures of the setup

Slow@ssLuda · 12-17-2011, 09:08 AM

Alright I got the pictures of my drag 4th gen prelude, now this is just to give you some ideas you don't have to do exactly what i did. this is still a good setup.

Rasmusm · 12-17-2011, 09:23 AM

Thanks alot

Really helpfull

I dont think I like welding on my valve cover, in that case I shouldnt go Moroso? :/

indylude18 · 12-17-2011, 09:39 PM

Quote:

Originally Posted by TypeT

you dont really need to go with brands on this one, theyre just cans, not any hitech engineering things.

I'm with this guy.

Unless you are doing a pretty extreme build, I don't see the need for a can with a breather on it like the moroso. Just don't get anything super sh*tty that's going to leak.

It's just a metal can with 2 bungs welded on it. Kinda hard to f*ck that up.

Slow@ssLuda · 12-17-2011, 10:48 PM

IMO if your not doing an extreme build then there is no reason for a catch can. The only time you need one is if your getting a lot of back pressure in the block. You will know this when your dipstick starts popping out on a good pull.

indylude18 · 12-17-2011, 11:20 PM

Quote:

Originally Posted by Slow@ssLuda

IMO if your not doing an extreme build then there is no reason for a catch can.

Agreed. Crankcase pressure really isn't an issue on a mild build.

It still prevents dumping excess oil from the pcv back into the IM though. Not needed, but doesn't hurt anything either.