A/C Reverse The Gases in Early Model 911's

[ganun]

Still waiting for someone to post data other than vent temps..... personally I would like to see what are the temps at the entrance and exit of both condensers, at least, for both forward and reverse flow situations. First is to benchmark the std arrangement, in order to get an idea of how much heat is getting removed from the rear cond and possibly added to the engine, very roughly, not going thru the Qdot calculations .
Then with the reverse flow setup someone could provide those temp numbers.
In this case, the rear cond. should be cooler by the amount of heat removed by the front cond.
So how much cooler air is the engine getting? 5 degrees or 40 degrees change ????
Will it make a difference in oil temps?
We have heard all the talk and theories, the data will show.
Well I was not going to get involved but ,...show the data.

[KelogGes]

Originally Posted by Ronnie's.930

Maybe that temp is sustainable, without evaporator freezing, because my car's a/c system is constantly attempting to counter the blast-furnace of masculinity that I challenge it with whenever I'm present in the cabin?!?!?!

roflmao

[Tippy]

Quote de Bob Kontak

You are not lying. However, 29F at the vents should not be sustainable.

Maybe that temp is sustainable, without evaporator freezing, because my car's a/c system is constantly attempting to counter the blast-furnace of masculinity that I challenge it with whenever I'm present in the cabin?!?!?!

LOL Ronnie....

[KelogGes]

Originally Posted by ganun

Still waiting for someone to post data other than vent temps..... personally I would like to see what are the temps at the entrance and exit of both condensers, at least, for both forward and reverse flow situations. First is to benchmark the std arrangement, in order to get an idea of how much heat is getting removed from the rear cond and possibly added to the engine, very roughly, not going thru the Qdot calculations .
Then with the reverse flow setup someone could provide those temp numbers.
In this case, the rear cond. should be cooler by the amount of heat removed by the front cond.
So how much cooler air is the engine getting? 5 degrees or 40 degrees change ????
Will it make a difference in oil temps?
We have heard all the talk and theories, the data will show.
Well I was not going to get involved but ,...show the data.

I believe You would need for a proper valid test of comparative analysis at least 4 simultaneous temperature readings on the condensers at the same time , including simultaneous high side and low side gas pressures, simultaneous engine rpm, and resulting simultaneous air vent temperatures, simultaneous evaporator temperature @ the same exact time for the static test, followed by the same monitoring setup on an extended driving test.

Not to mention an integrated DATA LOGGER

Good Luck getting this from a DIY'er

DIY'ers are not laboratory testing facilities, so you're asking A LOT

[KelogGes]

George Why go through all that ;; simply hook up some temporary hoses after "you already know your current a/c vent temps with out this installed at a certain @ ambient temperature" After temporarily hooking up reverse the gases test it @ the same ambient temperature and take your vent temp temperature "with A THERMOMETER" "THAT WILL ACTUALLY MEASURE AIR TEMPERATURE"
ANALOG OR DIGITAL, I like digital meat/cooking thermometers the best because they are very fast readings of changing temperatures, and you can find them in most grocery stores

NOT an IR or Laser pointing IR gun!! An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured. IT CAN NOT SENSE OR MEASURE AIR TEMPERATURE!

An infrared thermometer is a thermometer which "infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured" BUT NOT FROM AIR! You can use an IR gun for surface's temperatures, but again NOT ACTUAL AIR TEMPERATURE,

A/C STANDS FOR "AIR CONDITIONER" NOT SURFACE TEMPERATURE!

BUT if you must go ahead and do it the hard way

the in out condenserS temps and the way you are wording what you are requesting will give you a skewed test result

I am trying to help you the easiest way

I forgot to say you can use an IR gun on the fittings on the condenser or the condenser itself because it is NOT AIR, it is surface temperature

[ganun]

Well, I use to have an Omega 32 channel data aq, that would be an interesting characterization.
You do it , right up your alley.

[KelogGes]

Originally Posted by ganun

Well, I use to have an Omega 32 channel data aq, that would be an interesting characterization.
You do it , right up your alley.

Do your own independent testing, this is better !
But I will come by to view your test if you like


I am completely bias because not only invented this I have installed Reversing The Gases Three times fully tested it and absolutely know it works, and have no interested in testing this again, it WORKS GREAT!

My interest is in state of the art PFC technology new designs and development that are even more efficient and/or PRECISE digital micro processor temperature control of of evaporators @ 32-33 degrees F


Or you CAN wait until the west coast 86 SC Carrera Cabriolet DIY owner posts his numbers and description after he installs the PFC's etc, I am sending him and let him test it for DIY early model 911 community I have given my invention too. The west coast Cabriolet DIY owner is my priority helping him be successful making his 911 ICECOLD

[Ronnie's.930]

Originally Posted by KelogGes

I am completely bias because not only invented this I have installed Reversing The Gases Three times fully tested it and absolutely know it works, and have no interested in testing this again, it WORKS GREAT!

Gas reversal worked great for Bevis, too!

[wwest]

Originally Posted by KelogGes

Do your own independent testing, this is better !
But I will come by to view your test if you like


I am completely bias because not only invented this I have installed Reversing The Gases Three times fully tested it and absolutely know it works, and have no interested in testing this again, it WORKS GREAT!

My interest is in state of the art PFC technology new designs and development that are even more efficient and/or PRECISE digital micro processor temperature control of of evaporators @ 32-33 degrees F


Or you CAN wait until the west coast 86 SC Carrera Cabriolet DIY owner posts his numbers and description after he installs the PFC's etc, I am sending him and let him test it for DIY early model 911 community I have given my invention too. The west coast Cabriolet DIY owner is my priority helping him be successful making his 911 ICECOLD

Given that Austin TX in August seems to be the benchmark for testing our A/C performance I tend to think "west coast" is not definitive enough. Seattle, for instance, is "west coast", as is SFO, but IMMHO neither of those would suffice as a comparative test.

Bakersfield, Ca, maybe ???

[Ronnie's.930]

Originally Posted by KelogGes

and take your vent temp temperature "with A THERMOMETER" "THAT WILL ACTUALLY MEASURE AIR TEMPERATURE"
ANALOG OR DIGITAL, I like digital meat/cooking thermometers the best because they are very fast readings of changing temperatures, and you can find them in most grocery stores

NOT an IR or Laser pointing IR gun!! An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured. IT CAN NOT SENSE OR MEASURE AIR TEMPERATURE!

An infrared thermometer is a thermometer which "infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured" BUT NOT FROM AIR! You can use an IR gun for surface's temperatures, but again NOT ACTUAL AIR TEMPERATURE,

A/C STANDS FOR "AIR CONDITIONER" NOT SURFACE TEMPERATURE!

Reid, since you obviously missed it the first time, it would behoove you to read Eric's words of wisdom on IR thermometers, and then perhaps, you will stop spreading misinformation about them and their usefulness in a/c applications.

Originally Posted by SilberUrS6

Well, you were correct before. You can't fix stupid. Hey, you can't measure air temps with an IR gun? OK. You use a temperature probe. Excellent work!

Oh, wait.

How does that temp probe work, again? Oh, yeah. The cold air from the AC cools down the metal of the probe. The probe is not measuring directly the air temp, but the temp of the probe surface. Holy crap, folks! Guess what the IR gun is measuring? That's right, the interior SURFACES of the AC ductwork. The very same principle as how a temp probe or thermometer might work. None of these instruments is directly measuring the air temp.

[Bob Kontak]

Originally Posted by KelogGes

...........blackbody radiation

Waiting for input from Reverand Sharpton.

This could get nasty.

[SilberUrS6]

Originally Posted by Ronnie's.930

Reid, since you obviously missed it the first time, it would behoove you to read Eric's words of wisdom on IR thermometers, and then perhaps, you will stop spreading misinformation about them and their usefulness in a/c applications.

Yeah, measurement instrumentation is what I do, and have been doing, for decades now. That reminds me, the calibrated micrometer I sent you to use to measure your, ummm, probe? It was in excellent condition to measure very small lengths. I could send you the more sensitive one, of you need to measure smaller. Which, no doubt, you do.

[Ronnie's.930]

Originally Posted by SilberUrS6

That reminds me, the calibrated micrometer I sent you to use to measure your, ummm, probe? It was in excellent condition to measure very small lengths. I could send you the more sensitive one, of you need to measure smaller. Which, no doubt, you do.

You accidentally sent me the "Eric" model; please ship this one, and I'll report my finding to you, along with photographic evidence, forthwith!

[Ronnie's.930]

Originally Posted by Bob Kontak

This could get nasty.

"blackbody radiation"? . . . Maybe Reid was referring to something like this -

Nasty good!!!

[Bob Kontak]

Originally Posted by Ronnie's.930

"Nasty good!!![/IMG]

I say, God Damn!

Doesn't she need some kind of permit to be packing that much game?

[Ronnie's.930]

Originally Posted by Bob Kontak

I say, God Damn!

Doesn't she need some kind of permit to be packing that much game?

Yes, and yes!!!

[Bob Kontak]

Originally Posted by silberurs6

i could send you the more sensitive one, of you need to measure smaller. Which, no doubt, you do.

bam

[Bob Kontak]

Originally Posted by Ronnie's.930

Yes, and yes!!!

I could pull 9 seconds only because of my advancing age.

Willy could pull 15 with the steel rod implant that you have to be 80 to receive, by law.

[Ronnie's.930]

Originally Posted by Bob Kontak

bam

This type of commentary will get you a blast of "non reversed gasses" at nose level, Bob!!!

Originally Posted by Bob Kontak

I could pull 9 seconds only because of my advancing age.

?!?!?!

[Bob Kontak]

Hey Ronnieeeeeee

You know how Willie says we are married?

How about if he keeps it up we spill the beans about his Mrs at our consummation party and the noise she can crank out when she is being handled properly.