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-   -   Could This PFC BE The Holy Grail For Early Model 911 A/C System (http://forums.pelicanparts.com/porsche-911-technical-forum/983947-could-pfc-holy-grail-early-model-911-c-system.html)

KelogGes 02-03-2018 10:05 AM

Howdy Peter, which of my PFC's are you referring to???

I did not respond to your prior comment because I was not sure what you were talking about.

The New Dual Fender Well PFC, I am only a few days from completing, shown now with Blowers? Its untested!

Or my well proven 911 Custom made matched set PFC's, and weigh less than 6.5 LBS.? I have a ton of detailed install pictures on these!

I am not putting dimensions in a public forum at this time on purpose!

KelogGes 02-03-2018 08:12 PM

8 years ago in the spring of 2000 as an engineer I first started Custom making PFC's for early model 911's using only the latest state of the art Parallel-Flow Micro-Channel.

I have met or exceeded every A/C 911 goal I have attempted and have made vast improvements over every aspects to the entire early model Porsche 911 A/C System.

I have had my PFC's Professionally installed into nine 911's Porsche 0wners cars, that all get ICECOLD911 vent temps@ 95 F ambient degrees!

I have learned a ton of things about the early model Porsche A/C System, AS WELL AS PFC CONDENSER TECHNOLOGY, over many years!

I was never going to make this Fender Well PFC, I don’t need it for my matched Set 911 PFC’s because they easily get vent temps in the 30’s F @ 95 F ambient!

But I was contacted by someone who has a 930, and someone who has a 1960s 912 recently; and it got me thinking outside the box again, and I could finally see a need for this dual Fender Well PFC. AND THIS IS THE RESULT, and it just all came together quickly, so I made a few PFC cores!

Before I even put it all together it hit me, why not make it a SINGLE HOLY GRAIL PFC and did the surface area needed calculations and verification, and it does all fit!

Because of the rear fender well on the driver's side gets heat from the engine and exhaust near by, there is going to have to be heat insulation by the DIY owner or shop, and a mud/stone plate.etc lite aluminium and some heat insulation,

I do not know what A/C vent temps THIS FENDER WELL when ran alone as only A SINGLE SYSTEM PFC @ 95 Degrees F ambient will yield?

I would be happy with 52 degrees, as it should get down to this easy, because it has more than enough surface area for even tube and fin technology; for 95 degree’s ambient and 52 degrees vent temps. But it will probably do much better to say the least.

52 degree F vent temp on any A/C SYSTEM is considered normal good A/C temperature @ 95 degree’s

BUT this NEW Fender WELL PFC, not only has more than enough 911 A/C surface area, this PFC IS 8 PASS HIGH PRESSURE MULTI-SHIFT GASES MICRO-CHANNEL; COUPLED TO A 950 CFM Blower for condensation, and very short and small A/C barrier hoses.

I am almost done with these PFC’s, they only need fan shrouds and hose fittings added

GaryR 02-04-2018 03:35 AM

Have I missed the NINE owners testimonials on how well these work or are they all under a non-disclosure agreement? Would love to hear comments from people that have them installed and "that all get ICECOLD911 vent temps@ 95 F ambient degrees!"

KelogGes 02-04-2018 12:34 PM

Total Weight Fender Well DUAL PFC & 980 CFM Blower Fan 6.5 Pounds
 
Less SHROUD AND HOSE FITTINGS


http://forums.pelicanparts.com/uploa...1517779490.jpg


IMAGINE ONLY A COUPLE OF FEET OF VERY SHORT A/C HOSES AND ONLY THIS DUAL PFC ONLY

RUNNING YOUR WHOLE 911 A/C SYSTEM & GOOD A/C VENT TEMPS @ 95 F ambient

Rawknees'Turbo 02-04-2018 04:44 PM

Quote:

Originally Posted by KelogGes (Post 9912857)
. . .

I would be happy with 52 degrees, as it should get down to this easy, because it has more than enough surface area for even tube and fin technology; for 95 degree’s ambient and 52 degrees vent temps. But it will probably do much better to say the least.

52 degree F vent temp on any A/C SYSTEM is considered normal good A/C temperature @ 95 degree’s

52 degree vent temps doesn't cool worth a **** in mid-upper 90s ambient - not in a home and definitely not in a car.

KelogGes 02-04-2018 06:11 PM

Quote:

Originally Posted by rawknees'turbo (Post 9913963)
52 degree vent temps doesn't cool worth a **** in mid-upper 90s ambient - not in a home and definitely not in a car.

roflmao! YOU'RE Ignorant

Tippy 02-04-2018 06:32 PM

*You're... ;)

Rawknees'Turbo 02-04-2018 07:04 PM

Quote:

Originally Posted by KelogGes (Post 9914027)
roflmao! YOU'RE Ignorant

How so? My vent temp assessment is based on decades of a/c work (both home and mobile a/c). Have you driven a car in 95+ temperatures with an a/c system that is only capable of producing 52 degree vent temps? I have, and while that is better than nothing, the cooling effect in the cabin is minimal and will not keep occupants from sweating (a system like that can not keep up, and does a very poor job of removing cabin heat following any sort of heat soak from sun, etc.).


Quote:

Originally Posted by Tippy (Post 9914042)
*You're... ;)

Ha ha :D!

KelogGes 02-04-2018 07:23 PM

Ronnie,

They have not figured out here yet you have been permanently BANNED FOR LIFE FOR YOUR BS HERE!
But your still here under a different name!

YOU ASKED ME TO MAKE CONDENSERS FOR YOU.
I CHECKED YOU OUT A LONG TIME AGO AND REFUSED TO SELL ANYTHING TO YOU!

You are one of the most ignorant people I have ever seen Here and I Want Nothing To Do with you

I guess I am going to have to remind them you have been banned for life.

1979-930 02-04-2018 09:31 PM

^^^ You have posted several of the most ignorant posts ever read.

Oh and emotional outburst are not a sign of intelligence.


Sent from my iPhone while Driving

Coastr 02-04-2018 10:21 PM

AC threads on this site are something else.

DaveMcKenz 02-05-2018 04:08 AM

Hi Reid,
I like what you're trying to do on this design.
There is a problem with 52* vent temps on a car though. In a well insulated house 52* vent temps are fine, but in a car with exterior heat loads and no insulation, 52* won't produce the performance you are after. Personally I would guess your system will probably produce 40* vent temps, so it should not be a problem anyway.
Good luck,
Dave

GaryR 02-05-2018 05:53 AM

Quote:

Originally Posted by Coastr (Post 9914172)
AC threads on this site are something else.

This guy has been making crazy claims here since 2011, to my knowledge has actually produced nothing available to the public, and just continues ranting on and on and on... I ask again, where are the NINE people that have his miracle solution? Stick with the known AC guys and be happy, this isn't even entertaining anymore..

From 7-3-2011
http://forums.pelicanparts.com/porsche-911-technical-forum/617196-i-make-parallel-flow-micro-channel-condensers-911s-front-rear.html

timchar 02-05-2018 06:44 AM

The term “brain freeze”comes to mind. This guys a real character. He’s a legend in his own mind.
Tim

KelogGes 02-05-2018 08:11 AM

Quote:

Originally Posted by DaveMcKenz (Post 9914239)
Hi Reid,
I like what you're trying to do on this design.
There is a problem with 52* vent temps on a car though. In a well insulated house 52* vent temps are fine, but in a car with exterior heat loads and no insulation, 52* won't produce the performance you are after. Personally I would guess your system will probably produce 40* vent temps, so it should not be a problem anyway.
Good luck,
Dave


Howdy Dave!

You are one of of the few that has supported my engineering work for years for the most part, objectively offering only good advice to me and encouragement! I greatly value what you say to me! People Like YOU have given me the courage to keep posting what I do here related to new technology A/C for early model 911's, in the face of so much negative criticism that is overwhelming.

I am more than glad YOU Like my New dual PFC Design and what I'm trying to do with it!

My casual 52 degree @ 95 F ambient comment don't take wrong!
52 degree F @ 95 F ambient IS the Automotive & Dwelling & Industrial A/C INDUSTRY STANDARD NATIONALLY that ALL A/C SYSTEMS ARE BUILT TOO for good A/C (Look it up you will see its higher 54 degrees);

My New Early Model 911 Dual Fender Well PFC Design IS UNTESTED YET to run the whole 911 A/C SYSTEM ALL BY IT SELF!

But you know from my years of making 911 PFC's MY NORMAL ICECOLD911 PFC REQUIREMENT FOR MY PFC's IS THEY MUST PRODUCE VENT TEMPS IN THE 30's @ 95 degrees ambient or they are JUNK PILE PFC'S.

But for these UNTESTED Dual Core Fender Well PFC's I just made, used in a Holy Grail only one PFC to run the WHOLE EARLY Model 911 A/C SYSTEM by itself, I would be happy if it TESTS ONLY TO THE A/C INDUSTRY STANDARD A/C TEMP OF 52 degrees @ 95 F ambient.

I WOULD CONSIDER THIS A SUCCESS of The 911 A/C Holy Grail BEING BROKEN!


However I expect the vent temps to go to much more colder from PFC surface area calculations, but don't have a number;

ITS NEVER BEEN TESTED YET!

Tippy 02-05-2018 08:40 AM

Reid, there's been so much hoopla going on in these threads, that I don't remember the answer, but will this system be competitive pricing wise to the current vendors offering their systems?

Also, will this be a DIY, or will this require a dealer to install?

Bob Kontak 02-05-2018 10:13 AM

Quote:

Originally Posted by KelogGes (Post 9914098)
I guess I am going to have to remind them you have been banned for life.

The moderator who banned him knew long ago. Save your keystrokes.

You don't like him. Not big news. You don't like me for taking a few swings at you.

Just drop the name calling, please. It would serve you well and I hope your product kicks a**.

Regards.

KelogGes 02-05-2018 01:50 PM

Quote:

Originally Posted by DaveMcKenz (Post 9914239)
Hi Reid,
Personally I would guess your system will probably produce 40* vent temps, so it should not be a problem anyway.
Good luck,
Dave

I agree with you and would get probably get 40 degree vent temps, and this would be just fine, IF IT would do 50 degree vent temps if thats what this PFC produces. That for sure is cold enough for any car's A/C. Normal automotive A/C SET POINT is 54 degrees.

I have a 1992 Geo Storm Wagon that is made in Japan by ‎Isuzu Motors, the Geo Storm Wagon Factory A/C is set @ 48 F degree's and @ 95 degrees ambient the A/C is very comfortable and I am surprised how good its A/C is. American cars are all set to 54 degrees F. IE GMC/FORD etc

But back to this Single Dual Fender Well PFC, if It does what I believe it will do from my A/C condenser calculations of heat exchanger surface area and heat removal and efficiency of condensation, it will be the first time in history that a single condenser installed in an early model Porsche 911 became the Holy Grail and produced acceptable Cold A/C itself for the whole A/C system.; not only that, the A/C hoses will only be a couple of feet long and greatly reduce the cost and weight of the entire system.

To make the system ICE COLD for Desert users, where it gets to 130 degree's F (Death Valley, Dubai, Saudi Arabia, etc) I can easily turn it into a TRIPLE PCF, and turn a 911 into a ice freezer @ desert ambient temps.

If I can get people to throw away their TXV valve and get them to switch to Variable Orifice Valves, they will get a further 12 degree F drop in Vent Temps!

But first things first I am very close to finishing it, I need a reputable DIY TESTER.

Jonny H 02-05-2018 03:06 PM

Quote:

Originally Posted by KelogGes (Post 9915001)
it will be the first time in history that a single condenser installed in an early model Porsche 911 became the Holy Grail and produced acceptable Cold A/C itself for the whole A/C system.; not only that, the A/C hoses will only be a couple of feet long and greatly reduce the cost and weight of the entire system.

First time in history? Your history book is missing some pages. ;)

Our electric system uses a single 997 condenser and the guys running them in the Australian summer (e.g. right now), report 46 degrees F at the vents with a full blower speed in 95 degree F ambient. Our blower is more powerful than the standard 911 one, so that is more air moved than normal too.

Our complete hose set is ~20ft and weighs less than 4 lbs including all the fittings.

With the engine driven compressor, you will still need to run the length of the car and back to get to the evaporator so your hoses will still be getting towards 40ft long.

Btw, when you do your 'gas reversal' on the standard system, doesn't that mean having to add another 30ft or so of hose to get to the front condenser and back again? That's got to be close to 70ft of hose in total.

DaveMcKenz 02-05-2018 03:51 PM

Hi Jonny,
My memory is that the 996 and 997 use two condensers. How are you managing with just one? If I'm wrong, I apologize.
Thanks,
Dave


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