Smithy did you fit an oil catch tank on your Z?

 

Have heard some very good reports from doing this.

catch tanks are deffo a good idea, prevents detting, cleaner intake mix, dirty breather air reduces the octane rating of the air/fuel mix and also raises the intake charge temp. Oh but crap for the environment. :D

Jezz, could you pretend for one moment that I didn't understand a word of this message, but got the general jist that these things are a good idea (yeah, sod the environment!), then repeat as if for the hard of thinking with useful info like how much and can I do it myself etc.

 

 

 

:)

 

Many thanks

basically...

 

the breather system carries oil vapour, exhaust blow by that gets past the piston rings etc then then it is sucked back through the intake system by either hte PCV valves or through by the venturi effect where the breathers connect into the intake pipes.

 

basically this dirty hot gas is recycled and shoved back through the system and burnt so as to be tree hugging friendly.

Though this is not good for performance engines for all the reasons listed above, IE it's hot (what's the point in intercoolers if you are sticking hot gasses back in), has bugger all octane rating and clean pure cold air is much nicer for the engine eat. :)

 

does that help at all?

 

like being offered a mac donalds or a nice bit of fillet and chips. :)

One fills thee up and makes you feel better the other, erm, comes in a cardboard bag.

CheerZ Jezz;)

 

I think he fitted one:confused: Will have to wait his reply;)

Alright Mac, well in a word "No" i have considered it a few times as we have made some stonking catch tanks for a number of different cars, sure Jezz can agree on that and i've always fitted one in previous modded tubo'd cars i've had.

After Mark Brand had his problems last year at the Max power show i decided to go for it until i realised there's no fooking room in the engine bay :( even though Cusco list a kit for our car it's picture and details are the same as all the other kits for nissan's and these are about 7inches high and 2.5inch diameter, so dunno where are earth they think it will go.

If someone can figure out where to fit the bugger and tell me which exactly are the breather pipes that would be fed into it, then no probs we'll do one to suit as i certainly would be having one meself ;)

cheers

smithy :cool:

 

Zed complete with AFR and HKS plugs :D :) :) :D :D

Ok Smithy cheerZ;)

 

I think me and Dufflecoat have found a place to fit one,watch this space;)

http://home.hawaii.rr.com/twinturboz/catchtank.htm

 

 

Are you sure you want to take advice from an Amercian site!!!!LOL

 

Seriously speaking there have been problems, reported with catch tanks and how they interfere with PCV system!

 

See if Latz can knock up something?

 

Mark

Originally posted by Jezz_S13

basically...

 

 

like being offered a mac donalds or a nice bit of fillet and chips. :)

One fills thee up and makes you feel better the other, erm, comes in a cardboard bag.

 

 

LMAO :)

Originally posted by TopLess

http://home.hawaii.rr.com/twinturboz/catchtank.htm

 

 

 

Seriously speaking there have been problems, reported with catch tanks and how they interfere with PCV system!

 

You'd block the PCV's up if you were to fit a catchy tanky.

Well you would on an S13 and I doubt the breather system is that much different on the fat VaG.

Kinda defeats the object a bit if you leave them on sucking crappy gasses through.

 

i'm prepared to be educated in the complexities of the zed PCV setup if there is something I'm missing.

Now where is Lymon when you need him:rolleyes:

Trouble is, the engine breathes at its best when the PCVs are open! The engine breathing is f#ckin aweful when the PCVs are shut - it just relies on the suction at the turbo inlet to pull the air through. The whole idea of the breather system is to remove the harmfull/corrosive gases that get past the piston rings on each combustion. Under normal conditions you would use the vacuum in the inlet manifold to draw air through the crankcase, from the turbo inlet pipes, into the rocker covers, through the crankcase and into the inlet manifold. Trouble is, a turbo engine doesn't always have vacuum in the intake - this is why we have PCVs - otherwise you'd pressurise the crankcase lol

 

Does ANY of that make ANY sense? lol

 

CheerZ,

 

Andy

Taken from http://home.hawaii.rr.com/twinturboz/catchtank.htm

 

The addition of an oil catch tank will prevent an unusual problem the Z encounters on long, high g-force right hand turns: smoke from the left (driver's side) tailpipe. The PCV system vents from the left crankcase cover, and in hard right hand turns (such as those found in autocrossing), oil splash can be sucked into the right PCV hose. This then sends a bit of oil into the right intake manifold and results in billowing smoke from the left tailpipe (due to the V configuration of the intake).

 

In this case would'nt the Stillen PCV Race Upgrade help instead of fitting a catch tank?

 

http://home.swipnet.se/e-solutions/StillenPCV.html

Unfortunately there doesn't seem to be an answer yet to the Catch Tank/PCV situation!!

 

Every solution so far has drawbacks, including the Stillen one!

 

I believe Ashz on TT.net said he is working on a solution he believes will overcome all the negative sides of the others!

 

Do a search on TT, they call them catch cans!

my story:

 

The oldtimers on this forum might still remember that a few years ago there was a groupbuy on breatherkits organised by Johnny from Grasshopper.

This kit (made by Turbotechnics, I think) was going to solve all problems regarding smokey turbos and oil in your intake pipes, etc.

Together with lots of others on this forum, I also decided to join in with this groupbuy and after about 6 months I finally received something that later appeared to be the biggest piece of crap in history.

 

The idea about the kit was nice, but the materials used in the kit were crap.

The kit used small one way valves and filters and it worked as follows:

ON BOOST the one way valves are closed, filters allow crankcase fumes to escape into the air induction to prevent build up, as per standard breather system.

OFF BOOST, Internal valves inside the filters are closed preventing air from being drawn into turbo charger inlet pipes. One way valves now open, drawing a vacuum from the inlet manifold, into the engine crankcase via the rocker cover connections.

 

The problem was that it caused a very high vacuum in the crankcase during OFF boost situations (the state the engine is in most of the time) causing all sorts of problems, like low oil pressure, rough idle, hesitation, etc.

 

So I made something that sort of combines the idea about Stillen's PCV upgrade and the breatherkit as described above, but with a low/limited crankcase vacuum.

For my kit I used 2 small catch cans similar to these:

 

I installed the 2 catchcans under the nosepanel near the headlights since you have plenty of room there (even with dual intakes)

 

Sofar it works good and I no longer have oil in the intakes/plenum (my turbos never smoked, so I don't know about that)

 

-Eric

Thank's Lymon interesting stuff.

 

 

Now who wants to have money on it that warren will post and say how kak the breather kit group buy was?:rolleyes: :rolleyes: :rolleyes: ;) odds 1-10 as sure as a two horse race with a faller:D

Originally posted by MAC 1

Thank's Lymon interesting stuff.

 

 

Now who wants to have money on it that warren will post and say how kak the breather kit group buy was?:rolleyes: :rolleyes: :rolleyes: ;) odds 1-10 as sure as a two horse race with a faller:D

right i tookt hat ods lol, apart fromt eh group buy being KAK, the shit they sold was even worse lmffao.

 

Mine wouldent even burn when i tried to set fire to it, eventually using some NAPALM we managed to set fire to it :D (and pretty much everything around it lol)

 

Eric that looks like some decent kit.

Originally posted by 300z

right i tookt hat ods lol, apart fromt eh group buy being KAK, the shit they sold was even worse lmffao.

 

Mine wouldent even burn when i tried to set fire to it, eventually using some NAPALM we managed to set fire to it :D (and pretty much everything around it lol)

 

Eric that looks like some decent kit.

 

 

LMAO:D Bets are now closed;)