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-   Porsche 911 Technical Forum (http://forums.pelicanparts.com/porsche-911-technical-forum/)
-   -   I "WWested" my 84's a/c system (http://forums.pelicanparts.com/porsche-911-technical-forum/854978-i-wwested-my-84s-c-system.html)

wwest 04-21-2015 06:42 PM
Quote:
Originally Posted by KelogGes (Post 8588341)
I know you are trying to do the best you can with what you have !
have you ever read through my original thread, there is a wealth of info scattered you have to dig though the crap to find, there is a lot of useful a/c tips and tricks there I have written!

Just so I know are you using a thermometer to measure your vent temps? preferably a digital one
IR is surface not air and there is a difference
For our purposes IR surface temperature measurement is a better method. Surface IR readings will reflect more of a long term average for vent temperatures whereas the airflow temperature will change within the hysteresis span of the thermostatic switch as the compressor cycles on and off.

Ronnie's.930 04-21-2015 06:51 PM
Quote:
Originally Posted by KelogGes (Post 8588341)
Just so I know are you using a thermometer to measure your vent temps? preferably a digital one
IR is surface not air and there is a difference
Stop spreading false/misleading information in the tech forum; you have been corrected on several occasions about this, including by someone who works in the instrumentation field, and yet you still persist - very strange.

wwest 04-21-2015 07:29 PM
Speaking of quick cabin cool down and sub-freezing temperatures....

Provided your system has the "juice" to do so (a ready supply/surplus of liquid refrigerant) you can run sub-freezing temperatures for a goodly period, longer so with the blower speed on high.

You just need a good sense for when to begin retarding the thermostat before the onset of condensate freezing.

Most modern day heat pump systems in heating mode operate the evaporator well below freezing and then go into "defrost" mode once the evaporator is partially frozen over.

KelogGes 04-22-2015 06:37 PM
Quote:
Originally Posted by DaveMcKenz (Post 8588423)
Thanks, Reid. I did indeed read your original thread of 2-3 years ago. I have several different thermometers, digital and analog, also IR. I will publish rear condenser inlet/outlet temps with and without electric fans, once the weather gets hotter. I am working with small, incremental changes, not total redesign, as is your case. We shall see.
Dave
Thanks for telling me what you have for thermometers ! And about your reading so I know what you are aware of I wrote.

I like digital thermometers for air temperature


FYI: YOU NEED TO SET THE SUPERHEAT on your TXV



http://forums.pelicanparts.com/uploa...1429755255.jpg


I really like the Taylor digital thermometers, they have one model that has on and off switch with NO auto switch timed out

You can read the Taylor model number on the bottom one

This Taylor Model is their original design and is very accurate for air vents; you used to be able to get this model at grocery stores all over the place but they are now harder to find @ grocery stores and now they mostly carry/sell auto off ones


http://forums.pelicanparts.com/uploa...1429755532.jpg

http://forums.pelicanparts.com/uploa...1429755605.jpg

KelogGes 04-22-2015 06:43 PM
Quote:
Originally Posted by Ronnie's.930 (Post 8588515)
Stop spreading false/misleading information in the tech forum; you have been corrected on several occasions about this, including by someone who works in the instrumentation field, and yet you still persist - very strange.
NOT by "anyone who has real knowldge"! Your just upset because your numbers are BS and I called you out about it and you won't prove them WITH REAL PROOF

KelogGes 04-22-2015 06:48 PM
sorry Dave I don't like being Falsely Slandered

KelogGes 04-22-2015 06:50 PM
Dave I suggest you read and study about "thermal expansion valves and setting super heat"
IF your using one (hint hint)
I live in the tropics in south Florida and we use A/C Almost ALL year we rarely use heaters LoL

I will monitor your progress, your doing fine with what you have to work with; summers coming for you; here its been 89-90 already
later gator

Ronnie's.930 04-22-2015 08:30 PM
Quote:
Originally Posted by KelogGes (Post 8590227)
NOT by "anyone who has real knowldge"! Your just upset because your numbers are BS and I called you out about it and you won't prove them WITH REAL PROOF
Reid, stop spreading false, a/c thermometer information in the 911 tech forum. You have been educated about your error on several occasions and persist in doing so. Only you can answer as to "why", but enough already!

And while you're at it, stop falsely accusing me of "BS" - it makes you look foolish and desperate.

KelogGes 04-23-2015 12:19 PM
ronnie your so called I have been educated is a bad joke on YOU
"You have been educated about your error on several occasions and persist in doing so"

I am a well educated real Engineer with over 30 years experience and Federally Licensed by the EPA and Universally Certified in all types of Refrigerant Gases and and all type of refrigeration/air conditioning, etc among the many things I do.

I DO NOT POST BS LIKE YOU DO, I never post lies!

I AM NOT FALSELY ACCUSING YOU !!!

YOU CLAIMED EXTENDED DRIVING @ 95 degrees ambient; 27.x degrees you get in your 911 A/C SYSTEM AIR VENT OUT PUT and YOUR EVAPORATOR DOES NOT FREEZE UP

The ONLY thing you showed BESIDES YOUR EGO to back up this claim is a picture of an IR Temp Gun aimed into an air vent SEVERAL TIMES WITH NO OTHER PROOF WHATSOEVER!

Your A/C Claim IS Thermodynamically IMPOSSIBLE for an automobile on earth, under the Laws of Thermodynamics!

Therefore UNTIL YOU "PROPERLY PROVE" YOUR NUMBERS PUBLICLY AND YOUR BS CLAIM I am not going to drop it and will continue to haunt you with fact HERE AND CALL YOU A LIAR and I won't hold my breath!

Prove me wrong on anything I say related to early model 911 A/C, don't get petty!

PROVE YOUR NUMBERS AND YOUR CLAIM!!! I AM CALLING YOU OUT ON YOUR BS!

KelogGes 04-23-2015 12:38 PM
George I had no intention to come here and damage your thread

Ronnie harassed me here first and I am not going to put up with it

ganun 04-23-2015 01:35 PM
This isn't my thread, I think its Dave's.

Ronnie's.930 04-23-2015 01:50 PM
Quote:
Originally Posted by KelogGes (Post 8591520)
I DO NOT POST BS LIKE YOU DO, I never post lies!
And yet you make BS & lie filled posts like this? WOW, that's rich!


Quote:
Originally Posted by KelogGes (Post 8591550)
Ronnie harassed me here first and I am not going to put up with it
False! You first harassed the readers of this thread with erroneous information (false info that you have been spreading about ever since your ego took a battering) and I called you on it.

Quote:
Originally Posted by KelogGes (Post 8591520)
. . .I am not going to drop it and will continue to haunt you with fact HERE AND CALL YOU A LIAR and I won't hold my breath!
The only "haunting" you are doing is of the a/c threads - haunting them with misinformation, false accusations, and unintended, desperate cries for help.

Bob Kontak 04-23-2015 03:58 PM
Quote:
Originally Posted by KelogGes (Post 8591520)
I am a well educated real Engineer with over 30 years experience
Stuff it up your ass.

Most of us here have advanced degree designations, blah blah, ad nauseam. BFD.

Who gives a flip?

SilberUrS6 04-23-2015 04:07 PM
Remember to report abusive posts.

Ronnie's.930 04-23-2015 04:24 PM
Ha!!!

Bob, "The Mighty Pieholio" beneath your user handle = well done (and a big ole' boooo yaaaaa to Eric for that thar Pieholio wordage - too funny) !!!!

SilberUrS6 04-23-2015 04:34 PM
Quote:
Originally Posted by Ronnie's.930 (Post 8591900)
Ha!!!

Bob, "The Mighty Pieholio" beneath your user handle = well done (and a big ole' boooo yaaaaa to Eric for that thar Pieholio wordage - too funny) !!!!
Sometimes, I have a good idea.

Sometimes.

wwest 04-23-2015 04:44 PM
Quote:
Originally Posted by KelogGes (Post 8591520)
ronnie your so called I have been educated is a bad joke on YOU
"You have been educated about your error on several occasions and persist in doing so"

I am a well educated real Engineer with over 30 years experience and Federally Licensed by the EPA and Universally Certified in all types of Refrigerant Gases and and all type of refrigeration/air conditioning, etc among the many things I do.

I DO NOT POST BS LIKE YOU DO, I never post lies!

I AM NOT FALSELY ACCUSING YOU !!!

YOU CLAIMED EXTENDED DRIVING @ 95 degrees ambient; 27.x degrees you get in your 911 A/C SYSTEM AIR VENT OUT PUT and YOUR EVAPORATOR DOES NOT FREEZE UP

The ONLY thing you showed BESIDES YOUR EGO to back up this claim is a picture of an IR Temp Gun aimed into an air vent SEVERAL TIMES WITH NO OTHER PROOF WHATSOEVER!

Your A/C Claim IS Thermodynamically IMPOSSIBLE for an automobile on earth, under the Laws of Thermodynamics!

Therefore UNTIL YOU "PROPERLY PROVE" YOUR NUMBERS PUBLICLY AND YOUR BS CLAIM I am not going to drop it and will continue to haunt you

Speaking of "PROPERLY PROVE", where is the evidence that "reversing the gases" works better than NOT?

with fact HERE AND CALL YOU A LIAR and I won't hold my breath!

Prove me wrong on anything I say related to early model 911 A/C, don't get petty!

PROVE YOUR NUMBERS AND YOUR CLAIM!!! I AM CALLING YOU OUT ON YOUR BS!
KelogGes, you claim to be an engineer!!

NO engineer , no SANE one anyway, would bring forth a proposal like you have with your "REVERSE THE GASES" idea/(invention?) without at least one of the following.

1. Logical explanation of why you think it works the way you say.

2. Comparative testing results.

3. User contact or testimony.


I took the time to make measurements since for me simple logic says this can't work.

I took multiple airflow rate measurements across the bottom of the front lid condenser to come up with an average airflow. Same thing with the rear lid condenser with the engine at idle and no "WWESTED" airflow boost.

Adjusted the result by the factor of the size of the rear lid condenser vs the front one.

You saw the results.

Any explanation to offer?

KelogGes 04-24-2015 12:36 PM
Super Heat: Total System Superheat & Evaporator Superheat|Testo 550 Functions Part 1
 
<iframe width="640" height="360" src="https://www.youtube.com/embed/x-ooIJK72jI?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>



REAL A/C EDUCATION!

DaveMcKenz 06-13-2015 12:48 PM
Hi guys,
Just a follow up:
Today in Chicago it was 94 degrees. I parked the 911 in the sun and let it come up to oil temp. I turned on the a/c and put the interior fan speed on 3 (Hi). The port pressures were 30 PSI low and 160 PSI Hi. This was at 1500 RPM with the a/c temp control on max. The vent temps leveled off at 38 degrees with a digital temp probe.
It was just too hot working in the engine compartment to fool around with turning off my fans, but that will be my next experiment.
Overall I'm pretty happy with those numbers. Of course at low fan speed the vent temps drop to 33 degrees, but I'd rather have the air flow.
Good luck,
Dave

wwest 06-13-2015 01:41 PM
Why 1500 RPM...? Mine idles at 800..

Any chance of testing with/without fans at 800 RPM..?

Have you yet settled on a thermostatic switch close/open temperature range to power the fans?


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