Porschetech3

@996love The 80 LPM blow-by is the "rule of thumb" I use since this is what all my testing of UAOS Track Version and UIDS is based on , My 140K miles all factory stock 3.4 M96 engine has this blow-by reading and I use this as the bench-mark for recommendations since I am confident in the Data..

It's the AOS Sytems job to handle the blow-by.....and the amount of blow-by effects the amount of oil level that can be ran.....an inefficient AOS System ( like the factory one ) doesn't allow a higher oil level, in fact the Factory lowered the oil level due to AOS System deficiencies...

The higher oil level reduces the risk of oil starvation, but can only be done with a higher efficiency AOS System ( like the UAOS ) ..the Porsche Motorsport AOS actually lowers the usable oil level in the Sump. The higher oil level does not effect horsepower or Aeration in the M96/7 " Integrated Dry Sump" system used on the m96/7 like it does on standard "Wet Sumps"...

The "Integrated Dry Sump" is not like the typical "wet sump", ( unlike popular thought that it is just a "wet sump" ) it has it's advantages and challenges , there are many ways to kill an engine and their are many ways to lower and even eliminate the risks , like a Dr's advice and Prescriptions, and the reason I made to some upgraded parts ( UAOS and UIDS) , . I understand this engine well and the blow-by is one important factor in the equation ..With UAOS UIDS and blow-by less the 80 LPM and almost 12 qts of quality Track oil, coolant and oil temps controlled, the risk of oil starvation are all but eliminated...

@cloud9blue Nice Track video and quick too....I like the way you go hard and smooth but don't abuse the equipment...

996love

I see. Thank you for educating me Porschetech3. We’re very lucky to have your bright mind working to improve these engines.

One more thing, though: how are you able to measure the blow-by of the AOS? Did you make a little in-line MAF sensor?

Porschetech3

I devised an accurate,inexpensive and relatively simple procedure, to measure the blow-by specifically on the m96/7 engines . It uses an old school 50 year old physics equation for measuring the flow through a fixed orifice.. It is revised procedure of a similar one used 50 year ago by Volvo-Penta Marine, for accessing when the engine is due for a rebuild by the blow-by value ..

Here is the thread that shows what you need, how it works, how to do it on your own car...It is a valuable piece of the equation instead of assuming or guessing... You wouldn't want your Dr.. to prescribe a medicine or drug without doing the proper tests/blood work.. right??

I still use computers and digital data , but there is more to know than just what the computer or digital data tells you, you have to have the deep understanding of the Meta Data to make accurate sense of the digital computer data..

https://rennlist.com/forums/996-foru...=Engine+health

996love

Good stuff, thank you for the recommendation, Doc.

JW in Texas

Hey Skip,
Just dropped you a PM about my SPC car. Thx,
J

Porschetech3

Responded, check you PM's..

allcool

Just in case the other threads aren't read, to make sure its understood by all that read this thread....
There are 2 different tests not to be confused with each other.
1) a engine heath 'blow by test'.
2) a engine crankcase vacuum test to determine AOS health.

The blow by test uses small drilled sized orifice holes' in the oil cap to create a measurable amount of 'blow by'.
idle rpm test uses the smaller orifice, while high rpm test uses the larger orifice.

The AOS test blocks off all orifice holes in oil cap and strictly uses a manometer vacuum reading at the oil cap to determine health of aos.

Both tests are brilliant creations to simplify diagnosing m96 health.

jmo

Porschetech3

@allcool I agree 100% and thank you for helping explain and to help clarify things....My apologies to any beginners , I know we have Beginners, Novices, Advanced levels, and Expert levels reading this stuff. My technical comments are usually aimed at Novice or Advanced levels to increase their knowledge of things they may not have thought about, it will only help the 996 last/be cared for. . My oldest sister was a journalist but I am far from it ,and usually hate to do that type stuff so no way I would make a text post on 4 different levels so I thank Allcool for helping to clarify ..

cwheeler

Hoping to order! Have a new FSI R build and obviously don’t want to take any chances on oil issues. Been following for a long time and ready to pull the trigger.

also, any link to data systems? Wouldn’t mind having a simple system.

thanks

cw

Porschetech3

@cwheeler check your PM's

zzak

Can you PM me. I'm interested in a uaos & uids for a 99 3.4 carrera. Tracked currently with a motorsports aos and ln deep dump and failing miserably. Just found your stuff. For some reason, I can't pm you. @Porschetech3

Thanks

Porschetech3

@zzak for some reason I can't PM you either ... must be because you haven't had enough posts yet...

Just contact me through www.ultimateids.com or www.ultimateaos.com and send me your direct E-mail ..

Talk soon !!

zzak

@Porschetech3 thanks!

sdematt

Question for you @Porschetech3 : For the 996.1 dipstick with the UIDS and UAOS, does full on the dipstick show 9.9 QT, and the 10.9 QT fill will appear overfilled, or how is that going to work? On the electronic startup dipstick, is full on there 9.9QT as well?

Just want to make sure.

-Matt

Porschetech3

The Factory fill level for M96 on 996.1 is 9.3 Qts ( with filter change and Min 20 min drip time)

With UIDS the fill level is 9.9Qts ( this will read full on the dipstick or electronic dash gauge )

With UIDS and UAOS Track version the fill level is 9.9 Qts + 1 Qt ( this will read overfull )

With UIDS and UAOS Track version and verified blow-by of less than 80 LPM the fill level is 9.9 Qts +1 Qt + .75 Qts ...( this will read overfull)

These fill quantities can be used on all M96 and M97 engines, but 996.2 has a different dipstick and 997.1 has no dipstick ...and the dash gauges are calibrated different so will read different, but quantities can be the same..

Oil level in the sump is the most important in high G turns, so the higher the level the better, also always use a 50 weight Track oil ...