Customer Comments
D.M. in Driftwood, TX
1989, 911, Speedster Convertible
Installed Duehl Kuehl condenser and rear ward Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set, high low pressure switch, Kuehl drier, center Kuehl Vent, running R134a.
System charged and tested by Northwest Imports, Austin, TX
"It was about 93 F outside today. After final charge and test of the system we were pretty impressed, center vent temp was 36F."
E.I. in Pacifica, CA
1986, 911,
Installed Kuehl condenser, Kuehl barrier hose set, high low pressure switch, Kuehl drier, Kuehl Evaporator, center Kuehl Vent, running R134a.
" I installed your system in 2002 and just wanted to tell you it is stilling running great. I was impressed with the installation instructions as all my questions were answered when I read through it. On a scale of 1-10 I would give my system a 9 ".
R.L in Curacao, Netherland Antilles
1979, 911t, black exterior, black interior.
Installed Duehl Kuehl condenser and rear ward Kuehl condenser, Kuehl Kicker Fan, Kuehl barrier hose set, high low pressure switch, Kuehl drier, center Kuehl Vent, running R134a.
"Thank you, thank you, thank you… for the good advice and the perfect parts!! I live in the Caribbean, always hot, always sunny. I installed the system and after 10 minutes it is really cold. I had to put the blower lower. I recommended every Porsche driver Griffiths that wants to upgrade/replace/service there a/c system. Thanks again for giving me that Kuehl-smile. "
C.D.W in Houston, TX
1979, 911, black exterior, black interior.
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set, high low pressure switch, Kuehl drier, Kuehl 507 compressor, running R134a.
"Appreciation for providing an involved, yet easy to follow instruction package for the installation and commissioning of "my ice project." Your parts organization is very appreciated. Though involved the project was well worth the 20 hours install time - including my retentive cleaning. In short, my 79 911 SC now has an AC system which provides cold air. Another happy customer. As a sort of test I recently parked my black/black 911 in the Houston sun for two hours then went for a ride. Within 15 minutes I found the cabin too cold and had to turn down the fan speed. Empirical data aside I am very pleased with the system, its packaging, instructions, and operation.
K.A. in Cinn., Ohio
1985, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set, high low pressure switch, Kuehl drier, Kuehl vent, running R134a.
"It was 89 out 50% humidity, once the car cooled down 15 mins, inside car temp was 72-74 I got a 31.7 degrees on speed one on the low cycle of the evaporator with my VOM, pretty good I thought."
Performance Plus, Oakland, NJ
1986, 930.
Installed Kuehl condenser, Kuehl barrier hose set, high low pressure switch, Kuehl evaporator, Kuehl drier, running R134a.
"We are very pleased, high 20's ??? (how did they do that), the customer loves it". Customer - "thank you, what a fantastic product".
Formula Motorsports, Estoria, NY
1986, 930.
Installed Kuehl Condenser, running R134a.
"The customer is very happy".
Randolph Racing, Stoughton, MA
1979, 930
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set, high low pressure switch, Kuehl-507 compressor, Kuehl drier, Kuehl vent, running R134a.
"Its cold, real cold. Great idea".
B.P., Waterbury, CT.
1984, 930 euro. Installed Kuehl condenser, barrier hose set, Kuehl drier, Kuehl vent, running R134a.
"I'm very satisfied. Before I could not drive the car in hot weather".
M.S., Brunswick, GA.
1985, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set, high low pressure switch, Kuehl drier, Kuehl compressor, Tri- Kuehl vents, running R134a.
"I'm seeing 38 F (from the vents) at 88 F ambient (outside air temp). I'm very pleased. ".
R.J., Boulder, CO.
1988, 911
Installed Duehl Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl vent and Kuehl Variable Speed fan controller, running R134a.
"At 5000' elevation, the heat load in full sun is tremendous. With temperatures in the high 80s and some clouds, I typically run it about 1/3 blower and vent temperatures are in the 30s. The factory setup, with a full charge of freon (R12) would have run at max in this situation. ".
S.F., Charlottesville, VA.
1976, 930
Installed Duehl Kuehl condenser, Kuehl evaporator, Kuehl-507 compressor, Kuehl barrier hose set with high low switch, Kuehl drier, running R134a
"The laser thermometer is reading 32 degrees at the interior vent; my knee caps were blue by the time I got home."
E.E., Lucas, TX.
1987, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl compressor, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Vent, running R134a.
"I am seeing temperatures as low as 34°F at fan setting 2, and 38°F at setting 3, with outside temperature around 100°. On a 85-90° day, I can run on setting #2 comfortably."
B.R., Jackson, MS.
1988, 911
Installed Duehl Kuehl condensers, Kuehl evaporator, Kuehl Compressor, Kuehl Vent, Kuehl barrier hose set with high low pressure switch, Kuehl drier, running R134a.
"Just a note to thank you for the parts & advice on my 1988 911. I'm blowing snow balls now! I assembled in spare time, when I felt like working on it. I had it professionally tested for leaks and charged. There were no leaks. On a hot, humid day (85 degrees) in Mississippi my vent temp is 36 degrees. Your instructions, parts quality and fit were excellent. You can pass along to interested parties that even a CPA, unassisted, can follow them to a successful conclusion."
Hans Wittlers Auto Repair, Albuquerque, NM.
1987, 911
Installed Kuehl condenser, Kuehl barrier hose set with high low switch, Kuehl drier, running R134a.
"Impressive. This is now coldest 911 we have seen in New Mexico. And, the most consistent temperatures, even at idle".
A. P., Shady Cove, OR.
1984, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl compressor with clutch, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Vent, Kuehl Speed Fan Control, running R134a. System was evacuated, charged and tested by Phoenix Auto Center in Phoenix, OR.
" Looks like we are getting 38 F at the vent when it is 86 F outside. The low pressure side was 25 psi and the high side was 212 psi".
W. R., Dunnellon, FL.
1989, 930
Installed Kuehl condenser, Kuehl evaporator, Kuehl vent, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Vent, running R134a.
"I love the system and your instructions were good. It's in the 90's here in Florida and I'm getting 40 F at the vent, I had to turn down my temperature control. "
J. C., Levittown, PA.,
1984, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl compressor, Kuehl Vent, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Vent, running R134a.
" I'm really impressed. The Kuehl Condenser was a slick design, fits like a glove in the rear fender. It is 85 outside and I'm getting 40 at the vent".
Bob' Sunoco, New Bedford, MA. ,
1988, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Variable Speed Fan Controller, running R134a.
" Nice kit. Blowin real cold. I would do this all day long. It's only 82 F up hear but we got 35 F coming from the stock vent".
H.N., Johson City, TN.,
1988, 911
Installed installed Kuehl condenser, Duehl Kuehl condenser, Kuehl compressor, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Variable Speed Fan Controller, and Kuehl Vent, running R134a.
Customer: "I have a big time problem with the system you sold me. IT IS TOO COLD! I have to turn it down. And, now I have to contend with condensate water on my garage floor. What are you going to do about this?" (open car door and make an ice skating rink). I want to let you know how happy I am with the Mr. Ice system installed in my 1988 911 Carrera coupe. This car has never had AC that worked well. I have invested hundreds of dollars in it to get some sort of acceptable cooling. All wasted. The Mr. Ice was completed ten days ago (mid August), and I am thrilled with its performance. I have not had an opportunity to use it in temperatures over mid to high 80s, yet, but at this level, it puts out more cooling than I can use, and I have to adjust the cooling to less than the maximum. There is no question it will handle mid 90 temperatures (or more) with comfortable cooling. I am seeing cool air almost immediately at startup from a hot asphalt parking lot, and within a few minutes, the temperature is quite comfortable. I can even drive with a window partially down, and still have top notch cooling inside. Tests run when I picked up the car showed vent air temperatures in the mid to high 30s on a day in the mid 80s. I am 100% satisfied and feel that you have given my car a new life. My wife and I have been taking rides these days, something that was impossible to do before, without being totally uncomfortable in the car. We now look forward to some great road trips. To anyone who reads this, I went with the entire system. I did not try to skimp and save. The only part left from my original system is the compressor clutch. I can say that the electronic speed control for the fan is great , and very helpful to adjust the fan to meet the load. The extra vent puts out cold air where it is needed. Finally, I was very fortunate to have have a highly skilled Porsche mechanic and AC technician with all the specialized necessary equipment do the entire job. This is not for the backyard mechanic. My installer had never seen one of your systems before, but had experience with other after market AC units for the 911. And he was not impressed by them From the time he opened up the boxes, he was impressed with the quality of everything you sent, and he never wavered from that. He is completely sold on Mr. Ice. To anyone who would like to take a holiday in the beautiful Appalachia Mountains, I encourage you to come to Kingsport, TN and have Greg Hamilton of Blue Ridge Motorworks do the entire job while you tour the scenic and historical area in a rental. Note: do not come on a NASCAR Cup week at Bristol, as the area is jammed full. Feel free to share this with anyone interested. I was skeptical in the beginning, and way beyond happy with the results.
Installer: Blue Ridge Motor Works in Kingsport, TN, " Best kit I have ever seen. It's just 86F, we are running the evap fan at only 50% power and we got 36F at the vent"
T.C., Southlake, TX.,
1988, 911
Installed Kuehl condenser, Duehl Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, and Kuehl Vent, running R12.
Customer: " I picked up my '88 911 Targa today, after having it re-charged with R12, and I am very pleased. I haven't done my own analysis on the results of my Mr. Ice Project, but the Master Technician at the service center did. With outside air temperature at 95 degrees and 47% humidity, the A/C vent temperatures were 45 degrees at idle and 38 degrees at highway speeds. Others who have completed the project did some minor tweaking and mine might require some as well. However, even before the tweaking, I am very happy with the result and I wanted you to know. Thanks for the opportunity to enjoy my car even during the hot Texas summers. "
B.C., Orlando, FL.,
1989, 911, Targa,
Installed Kuehl condenser, Duehl Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, running R134a.
"WOW the Mr. Ice Project is WONDERFUL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Boy does it work! I have a 1989 911 Carrera Targa with black interior. It's in great shape. My husband and I have searched high and low for one and finally found one is Clearwater, FL. We live in Orlando where it is HOT and HUMID in the summer!! I loved the idea of my little hot rod, but during this summer I was beginning - no actually I truly HATED driving it!!!!!!!!!! There came a time one afternoon after taxiing our 2 daughters to gymnastics that I called him and had him meet me so that we could change cars because I was soooooo hot you could have wrung my clothes out!!!!!!!!!!!! At that point I told him to spend however many zeroes it would take to make the A.C. blow lots of cold air. And as any good husband would do, he listened and - ta da - Mr. Ice Project was installed in my little hot rod! Now I drive all over Orlando in my (really now) COOL/FRIGID little red 911. Yes I even take the top off and still blow that COLD A.C.!! It's a BEAUTIFUL thing!!!!!!!!!! I highly recommend the Mr. Ice Project to anyone who is suffering from melting in their hot 911!! Thank you! Thank You!! A cool and happy customer in Orlando!! (Now is there anything that you have to prevent Hurricanes from invading the Orlando area!?!?!)"
F.E., Sarasota, FL
1983, 911, SC
Installed Kuehl condenser, Kuehl evaporator, Kuehl 507 Compressor, Kuehl barrier hose set with high low switch, Kuehl drier, and Kuehl Vent, running R134a.
"Your kit was complete and your instructions were clear. I enjoyed taking time to think about how each component worked, and how to make fit and function optimal. However, I didn’t vary from your recommendations on anything. Yesterday, I had a shop evacuate and charge the system. I wanted them to take the same care and attention to detail you specify in your instructions. He did follow the instructions for a 3-hour evacuation after reaching max vacuum, and did a 1-hour leak test. Everything held tight. He weighed the charge and followed your instructions for engine and fan speeds. He started with 24 oz and the temp from the Kuehl vent was in the low 40s. Pressures were low, but I didn’t have the opportunity to note them as he added refrigerant. I saw 31.6 degrees from the Kuehl vent when he was at 30 oz. The expansion valve was icing at the low fan speed. It cleared up at high speed. I thought he could evacuate refrigerant if needed and agreed to let him add 2 more oz, for a total of 32 oz. At that charge the low side pressure was only 18 psi and the high side was 220 psi. At idle and low blower speed, my vent temp was 38.8 degrees. Actually, I am happy with temps in the 30 degrees. The ambient temperature was 83 degrees with 93% humidity. The day was cloudy. I’m waiting for a normal Florida summer day with full sun and temps in the 90s to see how well the system handles massive heat. On the road, my temps dropped into the low 30s (32.8 degrees) on low fan speed and at 40 MPH. My temp goes up to the low 40s when stopped in traffic, and varies while driving, based on fan speed and road speed. My temp sensing switch works well, cutting out the compressor at various temperatures when I back off the full cold setting. Now I understand why you are reluctant to specify what temps customers can expect. There are too many variables to guarantee anything. But, I’m very happy with the upgrades I installed and the results I achieved. While I still don’t know how the system will handle the most challenging Florida conditions, once the system evacuates heat and humidity from the cockpit, the vents blow colder than on my Impala, and the cockpit feels very cool, dry and comfortable."
D.W.V., Sydney, Australia
1985, 911
Installed Kuehl condenser, Kuehl barrier hose set with high low switch, running R134a.
"I have completed the installation now of your barrier hoses, Kuehl condenser, and wiring. We had a workshop pump down the system, leak tested, and charged it. Something went slightly wrong as he said it stopped charging at about 550 gm of R134a (19 oz.). I had to drive from Sydney to Coffs Harbour up the east coast, about 575 km (357 miles) each way and the system worked well. It was hot outside, 35-37 deg. C (95-99 deg. F) along the way and the sun's radiation was so hot that I couldn't rest my hand on the passenger seat leather. It wasn't cold in the car, but comfortable, with cold air blowing on me, and the humidity taken care of. Since then we've re-charged the car, with more time. We put in 725 gm (as you had found 26 oz. good for this number of condensers) and played around a bit up and down. No leaks, and it is working well. Makes a tremendous difference, and I am now driving my car to work each day. Thanks for your interest, and I shall be advising anyone local who wants to seriously fix their old A/C, to contact you."
A.A., Panama, Republic of Panama
1984, 911
Installed Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, and Tri-Kuehl Vents, running R134a
"My Carrera´s AC works very well. The car is black with beige interior and it cools very nicely even in bright sun light with my wife as passenger. Great products!!!! Thanks a lot. P.S. I will try this Stage 3 upgrade in the 930"
F.N., Houston, TX
1987, 930
Installed Kuehl condenser, Duehl Kuehl condenser, Kuehl evaporator, Kuehl barrier hose set with high low switch, Kuehl drier, and Kuehl Variable Speed Fan Controller, running R134a
"Man, that is cold. The complete project installation went great. I have not had a chance to fine tune the final refrigerant charge but here is what the system is blowing now: The outside air temp 99F, the humidity is near 90% and the vent temperature is down to 36F ! " Man, that is COLD!"
R.S., El Mirage, Az., temps 100+F !
1984, 911
Installed Kuehl condenser, Duehl Kuehl condenser, Kuehl evaporator, Kuehl Serpentine front condenser, new Nippon compressor, Kuehl barrier hose set with high low switch, Kuehl drier, running R12.
"First off thanks for all of your help. It's done and charged with R-12 and blowing really coooold. It has been over 100 degrees and get in turn the AC on and it is blowing cold after driving 100 feet, takes a little longer for the inside to get cold (Az weather) but not very long. The install was just a little harder than I first thought but , not that bad. I was doing it inside a garage in the middle of July in Phx. Az. so it took longer then I had planed . Yes, there is all of 40 foot of hose under the 911." UPDATE "It was 114 F outside the other day. I left the car to sit out there for the most of the day so it was pretty heat soaked. I got in it and drove down the road, not far, and it was blowin ice cold air like crazy and plenty of it too".
P.D. , Dawes Motorsports, Stroudsburg, PA
1979, 930
Installed Kuehl condenser, Duehl Kuehl condenser, Kuehl 507 compressor, Kuehl barrier hose set with high low switch, Kuehl drier.
"Your product kit is simply excellent. I mean excellent!"
W. M., Mission Viejo, CA
1982 911SC
Installed Kuehl 507 compressor kit, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator and Kuel Center Vent using R134a.
" I would like to thank the folks at Griffiths for providing me with the means to finally get my 911sc air conditioning system to function properly. I can now cruise around in the summer with my windows up and in complete comfort even on the warmest California days. That is something that I was never able to do before. The installation would have been much more difficult if not for the detailed instructions and illustrations provided with my parts. You can understand this considering that I am a serious "do it yourselfer". Seldom when ordering parts do you find this level of customer service as was provided to me. Example; my technician talking to Griffiths on a question during the evacuation and charging phase concerning the type and quantity of oil to be used. He (the tech) even made a comment "who are these guys", it was difficult for him to believe that I would be able to call on my cell while at his facility, and get someone on the phone instead of a recording that knew exactly what they were talking about, and was familiar with what I had installed on my car. I can not began to thank you for everything you did for me by providing quality parts that fit and the information I needed to make it all work." W.M. got lucky when he called us, we were not on the links golfing that day!
D. W. V., Sydney, Australia, temps 100+F !
1985 911
Installed Kuehl condenser, Kuehl barrier hose set with high low switch, Kuehl drier.
" Greetings from Sydney, Australia. It is now 12 months since we gassed up the "new" air conditioning in the 911, and it has been working perfectly. It is my daily driver, and lately has been coping with ambient temperatures around 38 degrees C (100F) when I visit sites in my consulting work. The old system would never have worked as well, and would have leaked out most of the refrigerant in that time. The new barrier hoses and extra condenser are life-savers; the car is now so enjoyable. Merry Christmas.
L.E.J., Ontario, CA,
1973, 911
Installed Kuehl condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl thermostat, Kuehl Evaporator, Kuehl 507 compressor kit, Kuehl Variable Speed Fan Controller
"At idle with the rear lid up, it was blowing 28 degree's. At speed with the lid down and the rear condenser working, it gets """really""" cold inside the car. Well worth the expense and my time to install everything, besides, I got a real lesson in how AC works."
G.H., Edmond, OK,
1985, 911
Installed Kuehl rear condenser, Duehl Kuehl condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator, Tri-Kuehl Vents, running R134a
" I just wanted to give you a update on my Project ice in the real world. I am back from my two week trip to California. I ended up driving over 4,000 miles total. I have found that if the outside temp is in the 90s the vent temp is about 40 degrees which is nice and cold. Once it gets to 110 to 115 the vent temp is about 50 degrees. Not to bad but it was no ice machine under those extreams. I suspect most vehicles struggle with that heat load. If the temp is below 90 I can get 36 to 38 degree vent temp. I can't prove it but I suspect the condensers in the fender helps keep the heat from dumping into the engine. Even running 75 to 85 MPH in 110 degree heat the engine temp never went above 220. I know I was a lot hotter before the Project ice and I remember the engine temp was hotter under the extreame heat outside. The climb up the mountains to Flagstaff to Phoneix in 115 degree heat is a big strain on a cooling system. My 911 Carrera had no problems. I turned 123456 miles on the trip home. I have several people ask about the system. I told them it was money well spent. Now I do not hesitate to take it out on a HOT day. Thanks for a great system! "
G.L., Los Alamitos, CA
1981, 911
Installed Kuehl rear condenser, Kuehl Serpentine Front Condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator, Tri-Kuehl Vents, Kuehl 507 compressor running R134a
" Just wanted to tell you how great my installation went. Even though it was a lot of work, everything went pretty straightforward and was not that difficult. I just got the system charged and it is working beautifully. I was really happy with the quality of parts included in the kit and the instructions were very clear. Thanks again for a great product."
S.N., Dayton, NV
1979, 911
Installed Kuehl rear condenser, Duehl Kuehl Condenser, Kuehl Serpentine Front Condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator, Tri-Kuehl Vents, Kuehl 507 compressor, R134a ready.
" It was another very warm afternoon in Northern Nevada, the difference today was that I was driving across the desert freezing! I finally got my system charged and what a spectacular result!! Your products work beyond belief!! I had to point the Kuehl vents away from me as you can bet I was not going to turn the AC off...I also received some favorable comments from the AC mechanics who are used to working with traditional Porsche units. I believe they were impressed too.
On a side note, I must once again compliment you on your customer service. In today's world it is becoming more and more unusual to encounter an organization that is willing to back up their products with such exceptional service. I think we have shared more than two dozen emails and multiple phone conversations. This proved to be an extremely involved project for me and through it all, you were there to offer advice and encouragement. It was greatly appreciated and an accomplishment for me to be proud of! Once again, thank you for everything and feel free to use this note as further testimonial to your products."
K.P., Kaneohe, HI
1978, 911
Installed Kuehl rear condenser, Kuehl Serpentine Front Condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator, Kuehl 507 compressor, R134a ready.
" My ac work is done, got all your components installed by a local mechanic, without any problems. The temperature gets to 35 degrees when the car is standing still. My ice project works great. Griffiths himself personaly helped me.I recomend this system for all you porsche owners who are tired of inadequate air conditioning in your car. Thank you Mr giffiths. Thank you for helping me with your guidance. "
D.A., San Juan, Puerto Rico
1987, 911
Installed Kuehl rear condenser, Duehl Kuehl Condenser, Kuehl barrier hose set with high low switch, Kuehl drier, Kuehl Evaporator, R134a ready.
"I can keep the cockpit cool, even under the burning sun with a blower setting of 3; on cloudy days 2 will do. I'm very pleased overall. Thanks"
Professional Reviews: Gerry Burger, FL. (evaluates automotive products and writes articles for most auto publications)
read Excellence Magazine, Sept & Oct. 2003 issues
Installed Kuehl condenser, Kuehl evaporator, Kuehl compressor, Kuehl barrier hose set with high low switch, Kuehl Vent, running R134a in a 1988 911 cabrio.
"In true Griffiths Technical Inc. tradition, the A/C kit is amazingly complete... no trips to the hardware store. The directions were complete and accurate in every way. When it was completed the system blended in perfectly with our 911 - nothing looked like an add-on. We're pleased to report we can acutually drive the car in complete comfort for the first time. Literally, ice cold air was pouring from the vents. We've been able to maintain comfortable temperatures with the fan on medium and, on warm Florida nights, it actually gets too cold! So we have to turn the thermostat on the A/C controller up - something we've never done before! Best of all our 911 Carrera Cabrio is finally an all-weather car with truly ice-cold air-conditioning!"