Heinz do you have it hooked up right? From their product description it
sounds like it may be a directional cooler? From their web site. Or maybe
its that the GMC is not a racing vechicle. could we use yours for the land
speed record? Sent an inquiry to perma cool. Interesting what they say.
Why Perma-Cool=AE Performs Better
In an ordinary oil cooler, the oil flows straight through tubing without
interruption. The oil nearest the wall of the tubing becomes "cool" and
sluggish, while the oil near the center remains "hot" and thin. The cooler
outer layer of oil serves as an insulation for the inner hotter oil and the
thin, freely flowing oil at the center passes through the coil without the
full advantage of heat exchange with the tubing. Simply stated, ordinary
coolers are designed to get in their own way.=20
Perma-Cool=AE coolers incorporate the patented TurbulatorTM fins to "mix"=
the
hotter and cooler oil with oversize tubing to insure ample oil flow. The
result is a design that takes full advantage of heat exhange with the coil
and prevents stalling of the oil flow while providing more of a temperature
drop. This difference is important and it's only available from Perma-Cool=
=AE.
Perma-Cool=AE was started in the early 1970's to help off road racers=
survive
the heat of desert competition. Today, over 25 years later, Perma-Cool=AE=
oil
coolers are used by the best racing teams worldwide. The knowledge gained
from our extensive motorsports involvement continues to play a vital role in
the development of all Perma-Cool=AE products.
>FWIW... as it turns out it takes quite an imagination to call it a cooler.
>
>In Medford I changed it to in front of the crossmember with 60 percent plus
free and clear in full airflow and fan mounted to push air through the
device. ( I refuse to call it a cooler any longer).
>
>i went out over the ashland hill and temps hit 260 in the pan as well as in
tranny outlet. Only for a short time, but I didn't like it nevertheless.
Interesting that temps were the same as in no cooling whatsoever?
>
>Thank goodness I bought a Hayden cooler at the Medfodr NAPA as a just in=
case.
>I installed that at the rest area between the hills and the rest was much
more pleasant.
>
>The diff is that the MaxiCool has fins surrounding a pipe while the Hayden
is a miniture radiator as in 'cored'.
>
>I installed it in series as it was easier for the time being but with the
Hayden in the temp went up when I was pushing hard uphill and then down
again. Seems the Maxi only delayed getting hot some as in temp would
increase until no longer tolerable instead of up and down.
>
>Currently in Redding, CA. Changed tranny fluid and reconnected the external
filter to see what it'll do. Normal tranny out temp with the hayden was
about 180/190 +/- so the thermostat may be right yet, it's just the cooler
(oops) that was never able to bring the temp down.
>
>If tomorrow goes ok I'm going to put it back on for the northbound trip
(thermostat).
>
>It's been a doozer... but still moving. No luck getting pads and calipers
today. Only oaccasional noise today when brakes applied. I think I have it
down to the front right so it'll come off first as soon as I have pads and
caliper.
>
>Heinz
>...napping in Redding CA.
>
>BTW, with the raybestos MC the brakes went soft a few times under hard
usage. Since the GM one is in pedal is solid.=20
>
>
>
sounds like it may be a directional cooler? From their web site. Or maybe
its that the GMC is not a racing vechicle. could we use yours for the land
speed record? Sent an inquiry to perma cool. Interesting what they say.
Why Perma-Cool=AE Performs Better
In an ordinary oil cooler, the oil flows straight through tubing without
interruption. The oil nearest the wall of the tubing becomes "cool" and
sluggish, while the oil near the center remains "hot" and thin. The cooler
outer layer of oil serves as an insulation for the inner hotter oil and the
thin, freely flowing oil at the center passes through the coil without the
full advantage of heat exchange with the tubing. Simply stated, ordinary
coolers are designed to get in their own way.=20
Perma-Cool=AE coolers incorporate the patented TurbulatorTM fins to "mix"=
the
hotter and cooler oil with oversize tubing to insure ample oil flow. The
result is a design that takes full advantage of heat exhange with the coil
and prevents stalling of the oil flow while providing more of a temperature
drop. This difference is important and it's only available from Perma-Cool=
=AE.
Perma-Cool=AE was started in the early 1970's to help off road racers=
survive
the heat of desert competition. Today, over 25 years later, Perma-Cool=AE=
oil
coolers are used by the best racing teams worldwide. The knowledge gained
from our extensive motorsports involvement continues to play a vital role in
the development of all Perma-Cool=AE products.
>FWIW... as it turns out it takes quite an imagination to call it a cooler.
>
>In Medford I changed it to in front of the crossmember with 60 percent plus
free and clear in full airflow and fan mounted to push air through the
device. ( I refuse to call it a cooler any longer).
>
>i went out over the ashland hill and temps hit 260 in the pan as well as in
tranny outlet. Only for a short time, but I didn't like it nevertheless.
Interesting that temps were the same as in no cooling whatsoever?
>
>Thank goodness I bought a Hayden cooler at the Medfodr NAPA as a just in=
case.
>I installed that at the rest area between the hills and the rest was much
more pleasant.
>
>The diff is that the MaxiCool has fins surrounding a pipe while the Hayden
is a miniture radiator as in 'cored'.
>
>I installed it in series as it was easier for the time being but with the
Hayden in the temp went up when I was pushing hard uphill and then down
again. Seems the Maxi only delayed getting hot some as in temp would
increase until no longer tolerable instead of up and down.
>
>Currently in Redding, CA. Changed tranny fluid and reconnected the external
filter to see what it'll do. Normal tranny out temp with the hayden was
about 180/190 +/- so the thermostat may be right yet, it's just the cooler
(oops) that was never able to bring the temp down.
>
>If tomorrow goes ok I'm going to put it back on for the northbound trip
(thermostat).
>
>It's been a doozer... but still moving. No luck getting pads and calipers
today. Only oaccasional noise today when brakes applied. I think I have it
down to the front right so it'll come off first as soon as I have pads and
caliper.
>
>Heinz
>...napping in Redding CA.
>
>BTW, with the raybestos MC the brakes went soft a few times under hard
usage. Since the GM one is in pedal is solid.=20
>
>
>
