Alan

Ahh - you'll be wanting the custom install location then... unfortunately I believe thats extra....

Alan

Alan

Well part way through the cam/intake refurb... here is the clean valley...

Here are the new powder-coated cam covers (intake will match this). You can also see the extra driver side breather porting and backwards angling on the ports - they will go back to the filter box bottom - (I also wanted to clear he Porsche text on the cam covers). I have a plan for cleaning up the venturi tube & brake booster connections too - stay tuned.

Alan

Leon Speed

Nice! My cam covers are planned to have a black wrinkle finish too. Did you have to grind of the notches for the elbows?

Alan

Not quite sure what you mean - the cam covers are untouched - but yes there are new lock slots cut into the breather vent skirts for the new angles.

Alan

Leon Speed

Ah ok I see, you cut new slots into the elbows instead of grinding dow the notches on the cam cover where the elbow sits.

Landseer

Dave,
I might have missed it, but do you have a kit solution for the S3?

Mine have a surprising amount of oil in the organ pipes.

Am also willing to feed the air pump with the provent discharge.

DR

I have kits for every year and version. www.sharkvent.com

Also have optional hose kit to feed to the air pump if desired (not necessary).

Alan

Well - I have my provent and custom parts from DR.

Getting ready for the next next steps in the install.

Looking at and testing the Provent I can now see how both relief valves work. The intake side of the filter is vented to atmosphere via the cap vent with about a 10 PSI crack pressure while the filter outlet side is vacuum limited to no more that about -10 PSI (wrt atmosphere) at that point the outlet limits the internal provent vacuum dropping lower. On the outlet side the pressure valve is referenced between the provent internal post filter and atmosphere but the actuator limits flow between the outlet & the provent lower body (post filter).

I have completed the intake refresh with all new rubber and a cam cover refresh with angled cam ports on all 4 corners, (for fresh air venting). While under the intake I added the 928 Intl Oil Control plate (with mods) and have also modified my filler neck to add a stack of copper scrubbies all the way up for better pre-seperation (this instead of he John Kuhn seperator that wasn't available in time for this to all go back together).

Next steps will be the Provent connections and cam cover fresh air venting.

Alan

byrdman454

I have been thinking of getting one of these Provents for my oil ingestion, but have some questions. Hopefully DR and some of the others who have already installed them can answer.

1) I am concerned about whether or not the Provent will fit my car. I currently have the 928INTL C&R radiator and the 928 MS twin fan setup. I believe these parts combined take up more space than the stock setup and am not sure there is enough room left over for the Provent. Can someone supply me with a measurement point between parts to verify I have enough room?

2) I currently have my intake off replacing throttle shaft bearings. What other options do I have since I have my intake off the car? I am also going to pull my oil filler due to some oil leakage. DR mentioned the GTS style as an upgrade. Should I bother with this for my '88? Mine is currently plastic, not aluminum. What about installing one of John Kuhn's scrubbers, or maybe the oil deflection plate from 928 INTL that Alan is using?

3) My car is not boosted in any way. Should I bother with the Xtreme kit or just stick with the stock replacement?

Thanks

worf928

The problem with the plastic necks is that they have a tendency to warp. And once warped there's no way to keep them from leaking. You'll want to check your neck's matting surface very very carefully. If you find that yours is warped then the GTS neck is about half the price of the pre-GTS neck. But, the GTS neck will not work with the S4 breather architecture.

byrdman454

Thanks Dave.
This is good info. Looks like I will swap out the oil filler housing regardless now due to the warpage problems, probably with the GTS one if I can get this Provent kit to work out.

Can someone else help me out with my questions from post 178?

Leon Speed

Your options are basically a) stick with the setup as designed for your MY, b) go with a GTS-version, which adds a vent to the left front cam cover c) go with a "GTS+" version, which also adds a vent to the left rear cam cover d) design your own system. I went with c), purely because I wanted to vent the left cam tower the same way as the right cam tower, without having any evidence that it is better than just one vent as compared to the GTS version. The cost difference is not so much that you'll be on water and bread for a month. Besides, it is fun installing something more or less unique.

I have no experience with the scrubbers or the oil deflection plate , so can't comment on that.

The Xtreme version has a larger vent hose and costwise the difference is negliceable.

Give DR a call , he'll help you decide.

worf928

The SharkVent system will work out. I installed one on an S4 with a new GTS filler neck. Talk to D.R.

I think its a personal choice on which one to use. Pros and cons to both. Better breathing with the Xtreme version at the cost of needing to put a plug in the hole in the filler neck when you add oil.

DR

Shouldn't be a problem at all. Carl's fan is not as thick as the factory fan so there should be plenty of room.

Get the GTS Filler neck, it is a lot cheaper and has less ports to block off when installing the SharkVent, makes for a tidier install and less places to block off. Concerning the scrubbers etc, I have yet to hear of a properly installed ProVent or SharkVent system not being able to handle the oil seperation on it's own without the use of scrubbers etc. If it makes you feel better use them, but they are not needed or necessary for our SharkVent Systems.

If you get the GTS filler neck from us I can pre-drill it for the Xtreme version for you.


X version, if you are going to do it you should go for the best results possible.

Let me know if you need more info.

Alan

With the intake off its easy to add the 928 intl deflector plate - seems it can do no harm (you do need to get an old sytle gasket for underneath it).

This plus the scrubbies was my means of accomplishing what John is working on - with the extreme breather port only right at the top of the filler neck I think this is likely to be at least as sucessful as John's system because of the much longer vertical distance and larger total scrubbie volume. Not sure you will really need this though...

if you do this you will have to modify your breathers -> intakes - either cap all the intake side ports and vent everything to atm through the provent OR use all the intake ports on the output side of the provent - this is what I will do when all done (however note on the intake ports there may be check valve reqirements or fixed orifice sizes you need - depending on year - match the effective stock configs).

I have a 928 Intl (C & R) radiator and it does reduce space a little - I needed to trim back the lip on the air pump filter housing - but fits OK. You do need a gap in the middle between the fan shrouds - like on the stock S4 system ... so don't know about that one.

Hand space for installtion is a little challenging - but I did all mine from above - no major issues...

Alan