Did you seal the bottom of the engine compartment, too? If not, then the fan has plenty of air to suck that doesn't go through the rear condenser.

Good point; the seal around the engine sheetmetal is easy to overlook, but mine is in good shape. In my case, the engine fan only sucks air through the rear decklid and A/C condenser. If I use the hand throttle to set the engine RPM @ 3000, and then hold my hand over the air inlet of the rear deck lid (while it's closed), it really sucks a lot of air. I can not feel air entering the engine compartment anywhere else around the decklid or through the seal on the top of the license plate panel (this is also in good shape on mine).

Bottom line - it's getting max possible airflow, so the above averge high side pressure I am seeing from my AC on a hot day is most likely caused by a very efficient compressor, coupled to an inefficient (by today's standards) condenser.

Theoretically, I believe KellogGes' modern paralell flow condenser will shed a lot more refrigerant heat, than my old school tube/fin condenser, and hence lower the high side pressure. I just hope that someone who has actually bought and installed one of these things can confirm any of this from their own experience. Some feedback on the construction quality, how well it fit, and whether or not it was delivered on time as promised would also be helpful.

I love the long hood 911's, and when I built my A/C system, there were no "modern" options for the rear condenser, so if this one fits and works as I believe it should, it will be a real benefit to a lot of long hood owners out there. Grifiths and Rennair make some great retrofit kits, but the rear condenser has always been the weak link IMHOP, and this one could be the cure. Beyond that, I believe getting more air through the evaporator is the next step to optimal cabin air comfort (as several of the previous posts have aluded to here)

I would also love to hear from an actual customer. Being able to replace the lines, compressor, drier and condensers only to get reasonable temps would be great.

Reasonable being in the 40-50F range with R134a.

I am considering the purchase of a 87 Turbo Cab and the AC is weak at best. With the local climate (temps usually in the mid 80s to 100ºF, average humidity ±80%), a great working AC is a must. Please let us know the progress on this and if there are any actual users of it.

I too am anxious to read reviews from an actual user of this product.
I suspect it works great, or at least better than stock, but I want to know if the results are worth replacing the existing hardware with these MC condensers.

To KelogGes.
Haven't heard from you in awhile. How is the manufacturing going ? Do you have any customers on the street with your setup that could tell the rest of us how it is working ?

Whatever happened with these condensers? Were they ever produced, and did anyone install one?

Engine lid blower fans proved to be not only less expensive, a LOT less expensive, but also more effective, improved the efficiency of the engine lid condensor rather dramatically, regardless of engine RPM operating range, vs the new condensor.

Not much market in the current economy for snake oil.

any news on these yet?

R S 911 new design & testing coming
 

RS 911 new front & rear PFC's design & testing coming

bare with me I am still editing what I will say about this

Best Regards

Reid

PORSCHE RS AMERICA Parallel Flow Micro-Channel A/C Condensers
 

PORSCHE RS AMERICA 3.6L 1994 with modified FIBER body kit 1972 RS AMERICA retro look

Parallel Flow Micro-Channel Front & Rear Condensers RSA TEST CAR

http://forums.pelicanparts.com/uploa...1331723447.jpg

http://forums.pelicanparts.com/uploa...1331723599.jpg

CONDENSER TESTING

PICTURES AND DISCUSSION TO FOLLOW STAY TUNED

Reid,

Great timing. Was just going to get with you.

I have almost the same exact car (no lights on the hood) down to the ducktail and 3.6.

Are you making any changes to the condensors or just fitting them in a test car?

Thx,

Joe A

this post is going nowhere unless we can get a real world report on the micro fin condensors. I make EV/HEV/PHEV battery packs for all types of electric vehicles and we have investigated everything from peltier coolers to thermo pads all of them have good and bad points. I want to know how effective these condensors are on a car.

I agree. A real-world customer with before and after temperature data. Otherwise, our host or Griffith's or Retro-Aire or some company with a history of making and supporting good products.

I might take a chance on a new product if the price was right. But I'd still want to hear about it from someone unaffiliated with the maker/seller.

Howdy Joe it’s been awhile; how have you been?

I don’t like the hood lights either (smile)

I know your RS is very very similar to this one I have been thinking about you for some time and knew you would like to know about this RSA and what we are doing to it to make it COLD !

FYI; The retro body kit was made by David Bouzaglou TRE Motorsports in California for a Miami Florida client David contacted me about several months ago; that is not far from me in Fort Lauderdale as you know; to see if I could help with his client's A/C problems or with someone I know near me; as the car had several issues that needed addressing I suggested to David he contacted Justin Stokes at Stokes Automotive because its complicated repairs to fix what someone else did "DUH" that had to be removed and repaired that didn’t make COLD (smile) , and to make a long story short (I will write all about it with pictures in the coming days)

Anyway about your questions:

I have changed and improved my rear PF contour condenser connection fittings to more closely match OEM's you will like better I think;

wow what a pain it was to do this compared to my much simpler and easier to manufacture original rear contour fitting design & manufacture; I had several welders I have tryed to use that are good welders; damage several of my prototypes PFCs, that cannot properly weld them to say the least without damaging them, which caused great delays and caused me a lot of money in damaged condensers; regardless I have this now worked out to where I am finally satisfied.

FYI ON this RSA THE Front PFC will sit vertical behind or within the RSA front rectangular air opening (and not underneath horizontal like most 911s) to take advantage of the AIRFLOW hitting the front bumper air-intake area opening. Justin is rushing too much here also and the front PFC won’t have a fan installed which I think is a mistake for stop and go driving!

I am not doing this install; I am busy working on a Motor Yacht at the moment doing engineering work;

Justin is doing the install and I think he is rushing the job just to get it done a bit to much. But its not my shop and I am not in contact with the RSA owner and probably won’t be until after the job is done?

I know that Justin will do a pretty good job and the car will get cold and I see what he is doing and it is undersandable from his perspective, considering what he is being paid for the work and the amount of time he will spend to do the work.

If I were doing this install myself the time it would take me would not matter to me at all!!! Just because the car got cold would not be good enough for me I would only accept REALLY REALLY COLD at or below 30 F or so using R134a and I already have a very good idea from all the testing I did last summer on my 1975 911 Carrera getting constant air-vent temps 31-33 F at the hottest part of the summer South Florida afternoon without clouds with record high temp of 95 F and 90=100 % humidity and at the same time with 30 air holes in my floorboards, driver wind wing glass broken out pieces and wide gaps in the replacement drivers door; sheet metal holes letting in hot air in the smugglers box below the plastic evaporator case that were there I just discovered a few weeks after I was doing test runs with the these air-vent temps I had during the South Florida highest record temps EVER, etc., etc.

Regardless I am sure the RSA owner will be very happy with Justin's work and the A/C temps he will get using my PFC's will be very cold.

Joe I just found out the other day from Justin that 1990 plus compressor is I somehow controlled (computer or other means) to shut off the compressor clutch in I think somewhere in the high 40s F,

(Justin does not plan to do anything about this he told me today on this RSA hmm hmm)

From our discussions I know you are into R-12 and I know using R-12and with my PFS's as such I would expect your vent temps to go down very easy constant in the low teens F or below down to 0F to control A/C freeze ups ; how are you expecting to rectify this RSA thermostat control problem and your thoughts on this for your RSA??

I am not doing this install stokes automotive is for a third party client
 

This 1994 RS AMERICA RETRO LOOK PORSCHE IS OWNED BY SOMEONE I DO NOT KNOW OR I HAVE AS YET NEVER TALKED TOO OR MET THAT LIVES IN SOUTH FLORIDA !!!

The owner of this car is a client of David Bouzaglou TRE Motorsports in California for a South Florida client David contacted me about several months ago; that is not far from me in Fort Lauderdale; to see if I could help with his client's A/C problems or with someone I know near me that does high quality Porsche 911 work, after David read some of my posts here about my custom designed and made for Porsche 911's PFC's ; as the car had several issues that needed addressing and I do not fix Porsches for other people I suggested to David he contacted Justin Stokes at Stokes Automotive a highly respected 25 plus years Porsche expert repair facility, because its complicated repairs to fix what someone else did that had to be removed and properly repaired, that didn’t make COLD A/C (smile) , and to make a long story short (I will write all about it with pictures in the coming days)

Several people here that are interested in my condensers have been recently asking for test results of my condensers which is fully understandable

Note: Although Justin Stokes that Owns Stokes Automotive is a personal friend of mine for 20 years; I DO NOT WORK FOR STOKES AUTOMTIVE even though I did most of my prototype work using his shop including my reported here testing etc., Justin Stokes Has had no hand in my PFC's work at all; and furthermore was rather skeptical and still remains so until he does his own installations and preparation etc of my PFC's and proves it to himself.

JUSTIN STOKES & STOKES AUTOMOTIVE IS DOING ALL THE A/C WORK ON AND TESTING ON THIS CAR; I DO NOT WORK FOR JUSTIN STOKES OR STOKES AUTOMOTIVE; WE HAVE NO BUSINESS OR FINANCIAL RELATIONSHIP WITH EACH OTHER IN ANY WAY!

Best Regards,

Reid

Off Topic Messages
 

PLEASE DONT POST OFF TOPIC MESSAGES HERE

The subject is Porsche 911 PF Condensers and their discussion

Nothing is actively being marketed in this channel

keep your posts on topic keep it nice & keep it friendly

OR SIMPLY GO AWAY!

1989 Porsche 911 Carrera Cabriolet PFC's COMING SOON TEST RESULTS
 

I have been contacted by an owner from Miami with a 1989 Porsche 911 Carrera Cabriolet after he read my posts here at Pelican that is interested in my PFC's technology & COLD A/C and expect the CAB to be brought to Stokes Automotive very soon and Justin Stokes to make the CAB COLD soon after THE RSA is completed.

I am only supplying the A/C condensers

I expect this 89 CAB will be a good candidate for an R134A PFC test case

Stay tuned

Insofar as I am aware no one is disputing the possibility that your solution might well work. But on the other hand the simple addition of a couple of 12 volt fans to provide consistent cooling airflow through the rear lid mounted condensor might well be not only be a much simpler and dramatically less expensive solution, but while at the same time providing even more system cooling efficiency than your EXPENSIVE solution.

At the same time the additional engine cooling capability provided by the engine lid mounted fans, might, immediately, "post" a period of HIGH engine output would be most definitely advantageous.

You can't win, the internet makes access to information, adverse even, 'way too readily available, so if anyone should go AWAY, it should be YOU.

"..Nothing is being actively marketed on this channel..."

My apologies in advance for being harsh, but...

BULL****!