Rick Girard wrote:
 >
 > I'm about to mount the make and mount the firewall on my
 > LEZ.  I am going to use the P-51 style scoop to supply air
 > to the oil cooler so it's time to select the cooler. Based
 > on Chuck Harbert's experience I've been advised to use the
 > stock cooler, but it doesn't really fit the area I have for
 > it.  Have also read the placard on the Mazdatrix site.  Is
 > the 13B hard on oil coolers (high pressure, surging at
 > startup)? Is anybody successfully using an after market
 > unit.  I have a cooler made by Long of Canada (came with the
 > engine PSRU package I bought last year) about which I know
 > nothing except that it's new, I already own it, and it
 > matches the area of the stock cooler pretty closely.  Any
 > recommendations? Lynn, you run these things the hardest,
 > what do you use?
 >
 > Rick Girard
 > 13B + LEZ

These are "Setrab" coolers from True Performance inc. About 10"X12"X1 1/4".

I have never had a problem with them, and we have abused them profoundly. In
the third race from new, a Camero ran over the nose of the car from the
drivers side. The glasswork vanished in a cloud of dust. We had a single
Setrab in front of the radiator at the time and it got twisted a bit and an
aluminum 90 got snapped off of it. That one is in this picture on the far
left. This installation is very poorly laid out. If I get some time I will
change this around so that the airflow can get to the coolers without
changing direction. The cooler on the right in this view is supplied by a
flex duct from a running light opening. This cooler is in the pressure
circuit. The other two are in series in the scavenge circuit. I think two of
these done well will cool 200 HP continuous. Three will cool 240 HP with a
shorter duty cycle. I use dash 12 hose and fittings but for lower RPM dash 10
would work as well. The hose is Aeroquip and it just pushes onto the
fittings. It takes a Gorilla to put it together, but it will hold on up to
250PSI. If you change your mind, you have to cut it off of the fitting. The
hose is Kevlar fabric reinforced and is very light. Available at the Hot Rod
shop near you.
Lynn E. Hanover

 
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