Wankel7

Okie from the searching I gathered that you need a baffle or else the catch can is gonna fill up fast if you do allot of driving with hard turns....

You need to hook up the can to the oil fill pipe....the fitting on the intermiate....and a check valve to the TID.

Is that about right?

Any pictures of setups?

Here is a good link Santiago found for me....teh search *****

http://cjsupra.kendra.com/PCV-Can.html

James

1987RX7guy

iTrader: (3)

stfu noob

SureShot

The check valve is not needed.
The TID is below atmospheric pressure only by the pressure drop across the air filter.
That's enough to purge the catch can vapor unless you have a ton of side seal blow-by.

I am assuming you are not building a 1000 HP drag motor..

Wankel7

Yep, no drag motor for me

Thanks for the info!

James

hondahater

iTrader: (2)

can people post oil catch can setups please? I've been needing one just not sure where a good place to put it would be. Right now I just have vac hoses running to the bottum of the engine but would rather have a catch can setup.

Wankel7

Where did you run that hose from?

The oil fill stand or the piece off the intermiate?

Also, do you have much oil in your intake track?

James

hondahater

iTrader: (2)

I ran it from the oil fill stand and also the one on the block itself. I don't have much oil at all in the intake track. I like the neatness of the oil catch can though, I just setup like this as a temp solution.

Wankel7

Seems like the only line missing for your setup would be one from the TID. To a can with a breather....

Maybe you could just use the subzero bottle...paint it black or something?

James

hondahater

iTrader: (2)

nah they have those el cheapo ones on ebay for about 20 bucks or so. I do have a nipple on my tid that I have blocked off I guess I could use that??? what is the line for the tid for??


Maybe you could just tell me why people have oil catch cans for their cars? I thought we just needed them because once you remove emissions you don't have the original lines that went to the nipple on the oil fill tube and the other one??? Is this right?

Wankel7

Hell, I have a guess

I think it is required by some racing rules so you dont spill on the track.

Also, I think it helps reduce oil that could muck up your intake track

James

hondahater

iTrader: (2)

ahh sounds about right. Is this on cars that don't have emissions or is this on stock cars as well?

jon88se

For those who have removed their emissions system, catch cans are a good idea simply to keep a cleaner engine bay. Every motor will have some degree of blowby...the rotary doesn't seem to bad at all but any amount of that oil vapor will make for a dirty grimey engine bay over time. I'm planning on getting one soon - at every oil change I can see some very light grime/buildup from the now open vents on the oil filler neck leaving residue on my IC pipe. It wipes right off but the can will keep it all neat and contained for a long long while (I don't think it would need to be emptied for 6 months on a rotary).

On my Galant VR4, the can fills up quite quickly...but it's ALL water vapor and a few drops of oil at my 3K mile oil change interval. When I empty the can, it's all just nasty looking water and a tad of oil at the bottom.

I'm actually thinking about an OBX catch can...now don't flame me, I know OBX is ricer heaven but I'd like a polished canister and this is the cheapest one around. It has a quick drain (my $110 GReddy doesn't even have that) and a level sight - what more could you want. I think it retails for $45.00.

Wankel7

Tried searching around...where do you buy obx?

Wankel7

Tried searching around...where do you buy obx?

jon88se

When I searched through netscape (uses google) I had trouble finding it as well but ebay is your friend:

http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW

RX-Heven

iTrader: (1)

Check out my garage area and look at the big pic of the completed engine compartment.
You can see the breather line coming out of the top of the oil filler cap and that goes to the catch can. I used a -6an line and that has proven to be not enough for me. On 20-25 minute track session, I still blow my dipstick tube out as a result of not enough ventilation. I will be using two -8an lines here shortly to improve the breathing. btw, Jaz oil catch cans are worthless for us turbo rotatries for anything other than street use. You will fill that thing up and blow out the top of it double it's capacity after a 20 minute track session. They are just too small.

https://www.rx7club.com/vbgarage.php?do=view&id=2592

jon88se

The line to the catch can looks like it's awfully close to the PS belt/pulley! Beautiful engine compartment though...

I can understand needing a larger tank than the JAZ can but is braided line really necessary? Fuel injection hose and high pressure clamps won't work for a track car?

Here is a great write-up for a JAZ can on an FD...check out his other write-ups, they are well written and well documented. He fabs a lot of brackets and such, all polished...very pretty

http://reganrotaryracing.tripod.com/catch.htm

RX-Heven

iTrader: (1)

There is plenty of room between the two.
Stainless line is not necassary, but I used it entirely in my engine compartment so I decided to keep it there also. As long as the line is oil resistant is all that matters.
I've seen that write up. Also there is a never ending thread in the racecar tech section or maybe it was in the rotary performance. Lots of good info in there if you are willing to search

hondahater

iTrader: (2)

Is it bad to say that everytime I see your car I get a funny feeling in my pants lol, j/k ......... sort of.