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Date: Fri, 04 Feb 2005 17:54:12 -0500
From: WRJJRS@aol.com
To: flyrotary@lancaironline.net ("Rotary motors in aircraft")
Subject: Re: [FlyRotary] Re: Cool Collar oil filter cooler
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In a message dated 2/4/2005 3:48:24 PM Eastern Standard Time, "Bartrim, Todd" <Steve.Bartrim@canfor.com> writes:

>While searching on EBay for a Cool Collar, I stumbled across another
>interesting device. It appears to be an oil/coolant heat exchanger for
>an Audi or Volkswagen. it's not clear but I'm guessing that it may
>somehow get sandwiched between the oil filter and mount? For those who
>were recently considering use of a oil/coolant exchanger, this might
>have some possibilities? Does anyone have any further knowledge of
>these?
>
>
>
>http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=46095&
>item=7951014053&rd=1#ebayphotohosting
>
>Todd

Todd, Several motorcycles use a water to oil cooler like this due to space constraints. They work OK. A proper cooler will give you much more area though. I also wouldn't trust some of these automotive (non-Mazda) coolers to be up to holding rotary oil pressure at high RPMs. (100 PSI) Lastly you must increase the area of the radiator to enable it to remove the same amount of extra heat. That is often forgotten, the heat must be removed somehow!
Bill Jepson