FI oil catch can install......

[Beedub]

hi guys as afew of us are now running FI, you really want a catch can in place, i was pretty suprised to see the plastic s/c intake BEFORE the s/c liberally coated in oil...... also the s/c turbine was oil splattered, all this on a 10k mile motor, so i tried to install a mocal oil catch can, sadly it was to big and wouldn't fit, so i started again, i researched the best catch cans money can buy and found the 42 design oil catch can, proper internal baffles, beautifully crafted, and even its own dipstick....... Note routing your breather directly back to the motor alters A/F ratio, lowers fuel octane rating and increases the chance of detonation.

heres the catch can in question, http://www.42draftdesigns.com/catego...catchcans.html

so install was relatively simply, measuring all the hosing took some time but i found a lovely place for this, i also slightly modified one of my old supercharged compressor clamps (then hand polished it) that becomes unused during the "clocking process", i also sourced another hex done bolt to match the catch cans bolts, The catch can is nice and light, the stiffness of the hoses EASILY support its weight so i used the dme covers screws to keep it located its not going anywhere, all in all, it looks great and performs even better...... These cars that were never designed to be FI NEED a catch can... the seperator built into the crank cover is not enough, i spoke to Jason over @ pro-efi and he categorically advised i get a catch can in place immediately........

excuse the crap photo's (hosing is good-ridge Kevlar re-enforced braided hose)

[IronZ4M]

Beedub, why do I need to use the oil catch can?

[Beedub]

Originally Posted by IronZ4M

Beedub, why do I need to use the oil catch can?

Every internal combustion engine has pressure and blow-by gases in the crankcase and valve cover. Some engines do a better job of separating the oil vapors before reaching the PCV (positive crankcase ventilation) vents than others. Most engines don’t, sending a nasty mix of oil vapor and waste gases out the PCV vent and into the intake system. These vapors smother important (and costly) sensors with oil and gunk. In extreme cases, this gunk can build up on the valves killing performance. On a micro level, oil vapors displace oxygen molecules altering air-fuel ratios and effectively lower the octane level of your fuel.

The concept is simple – trap the oil vapors in the PCV system before they have the opportunity to reach the air intake. It takes more than an empty can and some tubing to achieve this task. From the start, our oil catch cans are designed to pick up where others leave off. Our inlet and outlet fittings are made from ¾” tubing, the same basic size as the OEM PCV fittings and hoses. Larger inlet and outlet fittings allow for uninterrupted flow from the PCV vent to the can and back. Tubing smaller than stock will restrict the PCV vent and the flow of vapors. As PCV gases enter our catch can they disperse and turn upwards, forced to flow through a series of four filter screens. As the gases flow through these screens, heavy oil and gunk sticks and lighter gases reach the outlet tube at the top. Accumulated oil and gunk naturally runs off the filter screens and collect at the bottom of the tank. Without these screens, only a fraction of the liquids are trapped by the catch can. A bottom drain allows the tank to be drained without removing the entire catch can.

[seank]

Beedub, any more info on how his has worked. Where did you route the lines from? Do you have pics. Thanks

[GuidoK]

Originally Posted by IronZ4M

Beedub, why do I need to use the oil catch can?

Doesn't your g-power set already have a catch can?
If not (and the ventilation hose runs directly from your cilinder head cover to the inlet of the compressor), there is a simple test. Remove the hose, and see if the side at the compressor is oily/greasy inside.
After more than 10k miles my vent hose was only slightly greasy on the engine side (first 2" or so) and absolutely dry on the other side, so for my engine there was absolutely no need for a catch can (I was also thinking about installing a catch can). Apparently I have very very little sump pressure (which is very good news obviously).

But if you do not have a catch can and the vent hose is oily inside all the way to the compressor you definately must get a catch can.
Beside the story beedub posted, our (FI) engines have active air intake cooling (intercooler or heat exchanger), and if that gets greasy, you loose a lot of that cooling power.

[seank]

Originally Posted by GuidoK

Doesn't your g-power set already have a catch can?
If not (and the ventilation hose runs directly from your cilinder head cover to the inlet of the compressor), there is a simple test. Remove the hose, and see if the side at the compressor is oily/greasy inside.
After more than 10k miles my vent hose was only slightly greasy on the engine side (first 2" or so) and absolutely dry on the other side, so for my engine there was absolutely no need for a catch can (I was also thinking about installing a catch can). Apparently I have very very little sump pressure (which is very good news obviously).

But if you do not have a catch can and the vent hose is oily inside all the way to the compressor you definately must get a catch can.
Beside the story beedub posted, our (FI) engines have active air intake cooling (intercooler or heat exchanger), and if that gets greasy, you loose a lot of that cooling power.

It's the ess 525 and routes to the plastic intake that puts air to the super charger, then the intercooler as mentioned. I will check the hose for oil.

How much oil do you collect from the catch can Beedub?

[Beedub]

hi sean.... had this on the car for a while now and its definitely doing it job but im pleased to say their isnt a huge amount thats in the can, what it is catching however is the horrible gloopy mixed oil thats makes a sticky mess , its very simple to plumb in, the hardest part is finding somewhere to mount the unit!! I wanted to the system to remain in the "loop" so mine is going from the cam cover to the CC, then from the CC to the s/c intake.... it does make the engine bay area abit smelly but... i like that smell of hot oil :-)

so far its collected around 8mm worth of gunk!! Without it, the mess going into the intake was pretty shocking.... run your car for a trackday and remove the plastic s/c intake and you'll see what i mean....

ill post some update pics of the unit when i get back from the track this evening.

[GuidoK]

Originally Posted by seank

It's the ess 525 and routes to the plastic intake that puts air to the super charger

I was quoting the question of IronZ4m. I think he has a g-power setup

[seank]

Originally Posted by GuidoK

I was quoting the question of IronZ4m. I think he has a g-power setup

Gotcha.

Is your real name Guido?

[StickMon]

Stupid question:
Can this be fitted to an NA engine?
I take exception to all that crappy oil slime being sucked into my intake, granted the volume of it isn't as high as it is with FI.

[GuidoK]

Originally Posted by StickMon

Stupid question:
Can this be fitted to an NA engine?

A normal engine already has something (more or less) equal installed:
S54:


M54:


A lot of FI setups however delete this setup (sometimes partially)
It's called an oil seperator and catches off the oil and routes it back to the sump. A traditional catch can just holds the oil (and needs to be emptied occasionally).
If you want to have your intake absolutely free of any greasy or exhaust vapours you will have to vent to the outside air (But that's not allowed anymore). Old cars used to do that (mainly because it's easy), mostly by a catch can (which was no more than a bottle really).

Originally Posted by seank

Is your real name Guido?

Yes

[Beedub]

Seank search for the draft designs 42 ultimate catch can ;-) its a proper filtering unit with internal media to actually catch the oil...
The stock unit is not sufficient for an FI application , however I'm glad it's in place. The 42dd unit is very expensive for a CC but it works very well...

Oh actually here you go, take a read and check out the internal configuration ...

http://www.42draftdesigns.com/categories/products/catchcans.html

[drbvac]

I followed Beedubs advice and for the amount of effort well worthy the insurance to keep your supercharger clean.


http://www.zpost.com/forums/showthread.php?p=13482024

[Beedub]

sean, some updated pics, i used a supercharger rib from the clocking process as a further brace for install, plus it looked awesome too!!! granted this wont catch all of it, but anything that helps imo is a bonus.... it also has its own dipstock too!!! ;-)

[seank]

Just checking Guido. In the states, we would assume that you were an American gangster with a name like that.