Jeff,
Did you notice that it is a dual-pass cooler? Works out about the same as an RX-7 cooler. You can use the 3rd port for whatever you want...drain, temp sensor, feed for gearbox, etc. You may be able to get one with -10 ports, that's what mine has. The passages have internal fins to increase efficiency. The only downside I can see is the weight.
Mark
On Fri, Aug 14, 2009 at 7:39 AM, Jeff Whaley <jwhaley@datacast.com> wrote:
Hi Mark, that’s a nice looking cooler of similar construction and total surface area to the stock Mazda, but brings more questions.
What is the 3rd (female) port for? – a drain?
I don’t see a thermostat - have you located one somewhere else, or ignored that feature?
I guess this is the only oil cooler in your installation – where did you locate it, draw air from, etc? – any photos?
The connectors are AN-12 – my engine is adapted for AN-10, this complicates things a bit … mainly $150 worth of hose, adaptors and fittings.
Jeff.
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Thursday, August 13, 2009 6:55 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Earls Performance Oil Coolers
On Wed, Aug 12, 2009 at 3:29 PM, Jeff Whaley <jwhaley@datacast.com> wrote:
Thanks Mark, checked out Fluidyne; they’re available through Summit Racing … I don’t see any difference between them and Earl’s, except earl’s has more input/output connector options. Btw, I am being cautious; that’s why the post for previous experience; at the moment I’m looking for options.
Jeff
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Wednesday, August 12, 2009 3:39 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Earls Performance Oil Coolers
Be very careful on selecting an oil cooler. A few years back, one builder had two in-flight oil cooler failures... not good. Maybe someone recalls the brand. Also, be sure to pressure test whatever you choose.
Someone tried using an a/c evaporator for an oil cooler and it failed within a few hours resulting in a forced landing at an air force base.
I went with a Fluidyne cooler, used by the NASCAR folks.
On Wed, Aug 12, 2009 at 2:53 PM, Al Gietzen <ALVentures@cox.net> wrote:
No experience with Earl’s version; but it appears to be the same as the Setrab (copy, made by?), which has a good reputation.
Al
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Jeff Whaley
Sent: Wednesday, August 12, 2009 9:29 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Earls Performance Oil Coolers
Does anyone have experience will Earl’s “Temp-A-Cure” oil coolers with a 13B rotary?
http://www.anplumbing.com/shop/index.php?shop=Accessories&dept=Oil!_Cooler
or
http://www.holley.com/types/Temp-A-Cure%20Oil%20Coolers.asp
Earl’s quoted specs:
Features
· Manufactured in the U.S.A from aircraft spec aluminum alloy, using the latest vacuum brazing technology.
· Corrugated screen internal turbulator plates increase both thermal efficiency and mechanical strength resulting in the most efficient, smallest and lightest practical package.
· Manufactured from thin aluminum plates for the fastest possible heat transfer.
· Inlet and outlet fittings o-ring to the top plate assembly.
· Designed for the range of oil flows and air speeds encountered in high performance automobiles.
· Available in three widths with inlet and outlet fittings male AN.
· Every cooler is pressure checked to 175 psi. Periodic samples are burst tested to 350 psi.
Jeff
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