Oil Starvation

[onaFLYer]

Originally Posted by Brad Roberts

Heat is the reason the oil pressure is dropping. Waste of time to change out that spring. Add 3rd radiator/BoxsterS water lines to the 2.5 car.

How about if you have an S, with third radiator and larger cooler already? And your engine is now toast, like mine?

[ChrisZang]

I have an "S" so unfortunately I have all of ths already ......
But fortunately the engine ain't toast, just my track sessions are usually a little short

Here is a summary of all the things I did so far, unfortunately with only little effect

So here's what I did:
* Replaced water pump
* installed LN engineering low-temp thermostat
* cleaned the radiators (also cleaned between the radiators and the AC condensers)
* switched from 15W50 to 10W40
* bled the coolant system twice
* checked that all the electric fans kick in
* checked pressure on the coolant lines to the front radiators

Originally Posted by Brad Roberts

Heat is the reason the oil pressure is dropping. Waste of time to change out that spring. Add 3rd radiator/BoxsterS water lines to the 2.5 car.

[The Radium King]

here is the new lne deep sump WITH x-51 baffle ...

osCommerce

[ChrisZang]

Sorry but I don't buy it
This looks like the version I have in my 986S only with the difference that the X51 baffle is all metal while the 986 baffle is all plastic .
But my baffle also has the rubber flaps just like he X51 baffle
How do I know? I had it out when I installed the LN engineering deep sump...

Originally Posted by Wingnut2u

This is a reply from Suncoast Porsche
Deep Sump Oil Pan Spacer, when is it required? - 6speedonline.com Forums

[IMG]http://www.****************************************************.com/mm5/graphics/00000001/x51oilpan.jpg[/IMG]

See those little rubber flaps hanging down? That's what makes the X51 oil pan unique, the flaps open & close during significant oil shifts. The force of the shifting oil closes the flap, and helps to keep oil in the center chamber for an extended amount of time. Since these flaps are not installed on most models, oil can rush out of the center chamber under extreme conditions and bam.......the oil pick-up tube has no oil. This piece has been very effective, and a great alternative to replacing an entire engine. Driving these cars to the extremes does have it's risks, but this should help to reduce that risk.

The X51 pan can be modified to fit most late model cars, there is an edge on the vertical bracket which has to be cut to clear the inner components (I have a templete with dimensions). A mechanic should be able to make the modifications with a grinder. It can be fitted on any Boxster, Cayman, or 1999+ Carrera (not required for Turbo, GT2, or GT3 models).

[jsceash]

There is a post of the 03 pan with LNs 1/4" baffle riser in post 18 of this thread

[insite]

regardless of what brad says, that oil pressure releif spring / piston combo varies oil pressure with temperature. FYI, over time, springs sag. their spring RATES don't change, but their length WILL change. if this thing gets shorter, it bleeds off oil pressure.

if you're concerned about oil pressures, swap it out. it takes a couple of minutes during an oil change and costs less than $20. it improved my oil pressure at idle by 25%. it matters.

[The Radium King]

that's a cool tip. i checked on the auto atlanta parts diagrams and the part number has been superceded, which indicates to me that they have improved it for some reason. makes a person want to find out what all the superceded part numbers are, figure out why they changed, and incorporate if (a) cheap enough, and (b) easy enough. for example, the aos has changed several times. we hear all the time about aos failure but, given that this is the internet, you never hear what verson has failed. i'd love to find out the failure rate of the most recent version of aos vs previous versions; most likely the latest version is a significant improvement (ie, a motorsport aos not necessary).

[insite]

in this case, they replaced the 996 part with the 997 part. it has indeed been changed. the new piston has a chamfered edge, which usually is done if one suspects binding.

i'll post a pic of the different parts tonight.

[Wingnut2u]

Originally Posted by Brad Roberts

Wingnut?? Dallas?? How are you??

All is well, I haven't blown an engine in a while so I am very happy. I have survived with adding just the X51 oil pan, but I should probably add an accusump at some point for the added security since the Boxster is turning into primarily a track car. I just didn't get in enough days this year to justify the expense. Plus I added a 997 to the stable this year.

[ChrisZang]

A possible solution for a problem I am chasing for more than 6 months which costs around $20 and can be done n a few minutes during an oil change ?

You betcha I am gonna do this!

Originally Posted by insite

regardless of what brad says, that oil pressure releif spring / piston combo varies oil pressure with temperature. FYI, over time, springs sag. their spring RATES don't change, but their length WILL change. if this thing gets shorter, it bleeds off oil pressure.

if you're concerned about oil pressures, swap it out. it takes a couple of minutes during an oil change and costs less than $20. it improved my oil pressure at idle by 25%. it matters.

[onaFLYer]

Originally Posted by ChrisZang

A possible solution for a problem I am chasing for more than 6 months which costs around $20 and can be done n a few minutes during an oil change ?

You betcha I am gonna do this!

I'm with you. Only I have so many new parts going in I'd pay retail for this!

[jaykay]

Originally Posted by ChrisZang

A possible solution for a problem I am chasing for more than 6 months which costs around $20 and can be done n a few minutes during an oil change ?

You betcha I am gonna do this!

Chris did you ever get oil temp indication set up in your car?

[ChrisZang]

Originally Posted by jaykay

Chris did you ever get oil temp indication set up in your car?

Nope
Never got a good idea where to hook up the sensor.

I measured the oil temp with the Durametric when I came right from the track when it happened the last time and it wasn't all that bad, don't remember it exactly but I believe it was around 230, which is not too bad IMHO

[The Radium King]

can you get oil temp to show on your a/c display? code 1c as per below:

undocumentedacdiagnostics - mikefocke2

othwise, plx sells a lcd gauge that plugs into the obdii port, can read/display multiple parameters at once and has a customisable display. if you google 'boxster gauge pod' you can find a unit that mounts on the steering column quite easily.

[ChrisZang]

Originally Posted by The Radium King

can you get oil temp to show on your a/c display? code 1c as per below:

undocumentedacdiagnostics - mikefocke2

othwise, plx sells a lcd gauge that plugs into the obdii port, can read/display multiple parameters at once and has a customisable display. if you google 'boxster gauge pod' you can find a unit that mounts on the steering column quite easily.

Appreciate the tips but both don't work for me
The LCD hack only works for older models
And the oil temp via OBDII is Porsche proprietary, only Durmametric can "read" it. I have a PLX device and it doesn't offer me oil temp as a parameter

[jaykay]

I am a 2000 and for some reason I could not get this hack to work either.
There is also a question mark beside 1c....so

Chris how do you the plx for oil pressure? Which gauge do you have?

[ChrisZang]

Originally Posted by jaykay

Chris how do you the plx for oil pressure? Which gauge do you have?

Not from the PLX, I get this from my 996 cluster

[thstone]

I just ordered the EBS baffle. Looks like an easy to install solution. I'll put it in over Thanksgiving weekend so I won't have to worry about oil issues when I move from street to R-comp tires for my track days starting next month.

I also ordered a replacement oil pump spring/piston set just because its so cheap and easy to replace. With 98,000 miles I figure that IF the spring does lose performance then mine is probably gone by now!

[joni Hari]

Definitely watch for this. One of our employees left a mower running on a hill while he went to talk to someone and blew the engine on our brand-new mower!

[thstone]

I installed the EBS Racing oil baffle and replaced the oil pressure regulator spring/piston today. Took me about 3 hrs (took my time). Overall, very easy and a good afternoon project!

Here is the stock oil pan and baffle. The oil pan was very clean and didn't have any particles or sludge (a few small pieces of oil pan gasket material that came off when I removed the pan). Oil filter was completely clean too.



The one thing that I noticed about the stock baffle is that the rubber window shutter was kind of warped so it didn't lie flat along the baffle any longer. Not sure if this would have caused any issues but I expected the flaps to lie flat against the baffle windows to close them off completely.



The botton of the engine was very clean (much cleaner than I expected after 100,000 miles). The oil pickup screen was completely clear and clean.


Here is the EBS Racing baffle installed on the oil pan and ready for installation: