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Banned but not out, yet..
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Is a Cool Collar worth it for 12* redux?
Reading the technical forum, Cool Collars were recommended as the most cost effective solution to reducing oil temp. For an early car, the figure is 12 degrees, more for later cars. Are 12 degrees even enough to be concerned about if the car is running at normal temps? Will it help increase engine life? Is it the second coming for only $39.95 + S&H?
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An air cooled refrigerator. ‘Mein Teil’ |
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NO!
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Automotive Monomaniac
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No. No. No.
Waste of money.
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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Automotive Monomaniac
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Oh, I forgot to say that a 12 degree reduction in temps is HIGHLY UNLIKELY from the Cool Collar.
No. No. No.
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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Join Date: Oct 2003
Location: Scottsdale,Az
Posts: 3,738
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If that is the case why would Pelican sell them?
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Frank 1980 SC Cab Conversion (sold) 1974 914 2.0 RIP rear ended Looking for a 996 Silver Cab 2002-2004 |
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19 years and 17k posts...
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I was also wondering about the "Cool Collar"
Timely thread as I was also considering one of these Cool Collars. Is it a waste (gimmick) or does it do anything positive? Thanks!
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Art Zasadny 1974 Porsche 911 Targa "Helga" (Sold, back home in Germany) Learning the bass guitar Driving Ford company cars now... www.ford.com |
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Automotive Monomaniac
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Quote:
Cool Collar doesn't work because there isn't enough airflow around the filter (sealed engine compartment in a Porsche), and the oil filter isn't designed to be a radiator (the oil isn't deliberately flowing around the filter canister to be cooled - it just wants to pass it through a filter and get rid of it).
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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I got a 5 degF reduction using a cool colar. YMMV. Got a 50+ degF reduction installing a fender mounted cooler and fan in my hot running 2.7 L. Was a bit more 'spensive than $30 tho.
--Ian
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1971 911T Targa - R.I.P. 1976 911S Targa - Rippin' |
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Author of "101 Projects"
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The Cool Collar does indeed work. Search the archives - plenty of people have done plenty of tests proving that it does help. How much it reduces temps - well that's up to debate.
We've had customers do many, many, many tests with this units. Each and every time, they say that it reduces the oil temps of the car by a measureable amount. There's really no debate on this - search the archives - the proof from our customers is there. Still there are people who refuse to acknowledge the test results. I don't know where you got the 12-degree thing from, but it's more like a consistent 5 degree difference. -Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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Author of "101 Projects"
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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I actually stooped to buying one of these. I did notice my oil temperature needle was in a lower position on the way to and from work. Go figure!
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1994 968 "Totaled during practice for GBRS / PCA 2009 Race season" 1989 944 Track car replacement. Complete with 968 running gear. 1988 911 Carrera "Friday / Weekend Driver" 1988 944 Daily Driver now. 1973 911S "In storage" |
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Automotive Monomaniac
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Can one of us "non-believers" borrow one for a few days?
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
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Maybe not, but finned cooling lines work. Secret word: Elephant.
Only a guy who races elephants could come up with such a thing.
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Banned
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The Original Cool collar
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Author of "101 Projects"
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Quote:
-Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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Banned but not out, yet..
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From the Pelican Technical Articles
Air Cooled Engine (Road Test)
The test vehicle used was a 1978, 911SC Porsche, equipped with a carrera style oil cooler. The car was driven 65 MPH on a 85 degree day for approximately 35 miles. The car was then stopped and a I.R. thermometer was used to check the temperatures at various points along the oil lines, tank and cooler. In addition, the reading on the dash temperature gauge was noted. An average temperature of 220 degrees was logged. Testing was then resumed, with the Cool Collar installed on the oil filter, over the same coarse and speed. At the end of the 35 miles the temperatures were then checked again using the infra-red thermometer at the same points as before. The indicated temperature readings showed an average reading of 208 degrees, a reduction of 12 degrees. Cool_collar
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An air cooled refrigerator. ‘Mein Teil’ |
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Automotive Monomaniac
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Quote:
). I've got an IR Thermometer, so I can actually test the temps on the filter and lines.So, does the money-back guarantee still apply? If so, I'll order one tonight and post my results in a month!
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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Now in 993 land ...
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It is clear that it MUST work. It increases the surface area and it sits on a very hot spot of the oiling system. I am prett sure when driving at speed, that there is significant air flow in that area. Even if not - radiation and convection still depend on the surface area.
That all said, just like Wayne indicates, the question is if the temperature decrease is significant enough to make much of a difference. 12 degrees, that's not going to put you in a significantly different spot than where you were before. For the improvement of cooling there are othe cheap tricks that may help just as much, cleaning the engine (the cylinder and head fins) is an example. Also make sure your car is tuned correctly. E.g. running lean or off timing can make it run significanlty hotter than it should. Cheers, George |
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Now in 993 land ...
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I am not saying that there is cross flow. However, there is much turbulence and air must get whirled around in there, there is no question. If you don't believe me, just light a tea candle and glue it to the top of your oil filter. Drive around the block. If that candle is still going when you are back, you win. George |
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Author of "101 Projects"
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Quote:
Fine, I'll play along - I'll give you a money-back guarantee on it (only you - this doesn't apply to everyone). Test it. I've sold hundreds of these over the past few years. I think only a couple have been returned, (because they didn't fit on the car?). -Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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