The_Remora

Thanks DR

PorKen

Dave,

Has anyone run the ProVent -> airpump -> exhaust combo for any length of time? I would like to set mine up this way, but have worried about moisture or oil (liquid/vapors) might damage the pump.

I was even going to go so far as make an air-amplifier-venturi-pipey-thing that the airpump would blow through to pull crank vapor out, while bypassing the pump (unfortunately it doesn't work piped into the exhaust). I don't need this with the ProVent?

James Bailey

No Roger it just means you have a GTS AUTOMATIC now if it were a 5 speed Technically none of this is smog Legal for the Feds but unless you are in a state with very strict visual inspections , like they LOOK at the schematic glued under the hood and look for the SAME hoses , no one seems to care !

worf928

I agree. No questions asked in earnest are stupid.

D.R. made the point: the standard version will do a perfectly good job. Take a look at the schematics - with the standard system (using the small orifice on the filler neck) there's no way for oil to enter the intake. All the lines that, in the stock system, lead to the throttle body's air guide are capped at one end or the other. Oil just has no way to get to the intake except back through the intake valves themselves (unlikely.)

The large neck orifice on the X-system will help prevent serious crank case pressure from forcing vapor back to the heads. I think it's total overkill (and told Dave as much ) but for the 16v track motors that really love to pump oil and vapor so much so that most have fitted a catch can, the "X" system will help. For 32v boosted motors the X is probably a good thing too.

Of course, D.R's twin screw kit has the X version built-in so, I'm good

DR

Funny you should mention this, I am convinced that running the air out from the Provent thru the air pump will actually make the pump last longer and run quieter. The miniscule amount of oil vapors that are in the separated air from the Provent will lube the pump internally :-).

DR

Just to clarify, all of the 16V SharkVents are "X" versions. The Oil Filler Lid port we use on the 16Vers is a 1" port. This is why there is only one version for the 16V engines.

worf928

Oops. Sorry. I always, always screw up anything that has "16v" and "928" in the same sentence.

DR

We need to take up a collection and get you a nice 16V(preferably a Euro S 5-speed). Then you can become as much of a Guru with the 16V as you are with those new fangled 928s :-)

blown 87

Great idea, here is a nice one, maybe the owner would sell it cheap, of course it would need a PPI to make sure it is ok.

worf928

Umm.....

let's go back to talkin' about the Sharkvent.

blown 87

I amuse to easy I guess...................

DR

Yes Sir! :-)

Here is a pic of a couple of SharkVent Xtreme Kits leaving today.
One for an 88 S4 and one for a 90 GT in the UK.

IcemanG17

DR
Since silly ??? are flowing...heres one I have:

So the oil return to the dipstick port is just fed by gravity...or is there a vacuum sucking it down? I'm wondering if there is any pressure at the dipstick...since if there is it won't drain back to the sump? From what I understand (limited at best) the dipstick should be neutral....assuming there is oil in the sump...so then it would be only gravity fed?

DR

Hi Brian,

Not silly at all.

If you look in the photo above you will see an aluminum device mounted in the hose coming from the dipstick tube (or just above the oil pan adapter in the right photo). That is the Provent Check valve, it will not allow anything (crankcase pressure or oil) to go from the dipstick up towards the Provent. BUT when the oil drains from the ProVent the valve opens and lets the oil flow into the oil pan. Even if there is any pressure in the crankcase (there is very little since the pressure is released thru the SharkVent System) once the weight of the oil builds up it will stilll flow into the oil pan.

Even in extreme crankcase pressure situations the worse case scenario is the oil will build up a little and then drain when the throttle is lifted etc (for example, during shifts or decel), and again the weight of the oil overcomes what crankcase pressure there is.

Hope that makes sense.

IcemanG17

Okay two more ??? Why is the lower piece that goes to the filler neck different? Also the picture looks like the "standard" shark vent..not the eXtreme right?