Trans Cooler
- Thread starter dave1
- Start date
>... probably a simple ram air style
>unit (no thermostatically controlled aux fan -- ....
That is correct, it is a passive unit. I mounted it in front of the
radiator so it does pick up some of the air-flow drawn into the radiator by
the engine fan.
>....keep you within safe temps
>during that inevitable and maddening stop and go, rush hour junk in
which we
>all find ourselves from time to time?
I am in the process of figuring out where and how to install a temp gauge.
I am planning on doing it sometime in the next few weeks so I will probably
have some better data this summer. I may even do some tests like running
with and without the aux cooler to see just how much it helps. I suspect
that, at low speeds and in stop and go traffic, the transmission is not
producing excessive amounts of heat. I suspect that at high speeds and
under load is when the most heat is generated. I could be wrong about this
but that is what I was thinking when I decided to install a passive cooler
rather than one with a fan.
>I don't recall if you're one of
>those "Ragusa pan people" or a "Damn the Speed Bumps -- Full Speed Ahead"
No, I still have the stock pan. I like the idea of being able to add
another qt. of fluid but not enough to spend the extra $$ for the Ragusa
pan. I think that adding the oil cooler is a more cost effective solution
for keeping the trans cool.
Dave
73 Sequoia
>unit (no thermostatically controlled aux fan -- ....
That is correct, it is a passive unit. I mounted it in front of the
radiator so it does pick up some of the air-flow drawn into the radiator by
the engine fan.
>....keep you within safe temps
>during that inevitable and maddening stop and go, rush hour junk in
which we
>all find ourselves from time to time?
I am in the process of figuring out where and how to install a temp gauge.
I am planning on doing it sometime in the next few weeks so I will probably
have some better data this summer. I may even do some tests like running
with and without the aux cooler to see just how much it helps. I suspect
that, at low speeds and in stop and go traffic, the transmission is not
producing excessive amounts of heat. I suspect that at high speeds and
under load is when the most heat is generated. I could be wrong about this
but that is what I was thinking when I decided to install a passive cooler
rather than one with a fan.
>I don't recall if you're one of
>those "Ragusa pan people" or a "Damn the Speed Bumps -- Full Speed Ahead"
No, I still have the stock pan. I like the idea of being able to add
another qt. of fluid but not enough to spend the extra $$ for the Ragusa
pan. I think that adding the oil cooler is a more cost effective solution
for keeping the trans cool.
Dave
73 Sequoia
I
>suspect
>that, at low speeds and in stop and go traffic, the transmission is
>not
>producing excessive amounts of heat. I suspect that at high speeds
>and
>under load is when the most heat is generated. I could be wrong about
>this.............snip
My experience is just the opposite. When I first installed my gage I
nearly had cardiac arrest when I saw the temp move way up in stop and go
traffic.
On the highway there is less strain on the tranny and the temp stays in
the low range. High speed doesn't seem to effect the reading as much as
low speed.
That has been my experience...perhaps others have seen different results.
Dave Greenberg
GMC Motorome Registry
200 Macfarlane Drive PH 4
Delray Beach, FL 33483-6829
800-827-9989
>suspect
>that, at low speeds and in stop and go traffic, the transmission is
>not
>producing excessive amounts of heat. I suspect that at high speeds
>and
>under load is when the most heat is generated. I could be wrong about
>this.............snip
My experience is just the opposite. When I first installed my gage I
nearly had cardiac arrest when I saw the temp move way up in stop and go
traffic.
On the highway there is less strain on the tranny and the temp stays in
the low range. High speed doesn't seem to effect the reading as much as
low speed.
That has been my experience...perhaps others have seen different results.
Dave Greenberg
GMC Motorome Registry
200 Macfarlane Drive PH 4
Delray Beach, FL 33483-6829
800-827-9989
Dave, T'was I who asked the question. Thanks for the come back.
Does this cooler -- which from the price is probably a simple ram air style
unit (no thermostatically controlled aux fan -- keep you within safe temps
during that inevitable and maddening stop and go, rush hour junk in which we
all find ourselves from time to time? I don't recall if you're one of
those "Ragusa pan people" or a "Damn the Speed Bumps -- Full Speed Ahead"
guys.
Thanks
Dick 75 PB in Atlanta
>A while back someone asked what trans cooler I was using. I finally had a
>chance to go look it up. Its a Hayden 679. The cost was about $60. Its
>approx 12" x 12" and has its own mounting brackets.
>
>Dave
>73 Sequoia
>
Does this cooler -- which from the price is probably a simple ram air style
unit (no thermostatically controlled aux fan -- keep you within safe temps
during that inevitable and maddening stop and go, rush hour junk in which we
all find ourselves from time to time? I don't recall if you're one of
those "Ragusa pan people" or a "Damn the Speed Bumps -- Full Speed Ahead"
guys.
Thanks
Dick 75 PB in Atlanta
>A while back someone asked what trans cooler I was using. I finally had a
>chance to go look it up. Its a Hayden 679. The cost was about $60. Its
>approx 12" x 12" and has its own mounting brackets.
>
>Dave
>73 Sequoia
>
>My experience is just the opposite. When I first installed my gage I
>nearly had cardiac arrest when I saw the temp move way up in stop and go
>traffic.
Interesting.
What kind of transmission cooler where you using? Do you still have the
radiators transmission heat exchanger hooked up?
Dave
73 Sequoia
>nearly had cardiac arrest when I saw the temp move way up in stop and go
>traffic.
Interesting.
What kind of transmission cooler where you using? Do you still have the
radiators transmission heat exchanger hooked up?
Dave
73 Sequoia
The tranny temperature at stop and go speeds is predicated on the stall
speed of the tranny. higher stall speed, higher temp. bottom line, the
torque converter makes a big difference.
>I
>>suspect
>>that, at low speeds and in stop and go traffic, the transmission is
>>not
>>producing excessive amounts of heat. I suspect that at high speeds
>>and
>>under load is when the most heat is generated. I could be wrong about
>>this.............snip
>
>My experience is just the opposite. When I first installed my gage I
>nearly had cardiac arrest when I saw the temp move way up in stop and go
>traffic.
>
>On the highway there is less strain on the tranny and the temp stays in
>the low range. High speed doesn't seem to effect the reading as much as
>low speed.
>
>That has been my experience...perhaps others have seen different results.
>
>
>Dave Greenberg
>GMC Motorome Registry
> 200 Macfarlane Drive PH 4
>Delray Beach, FL 33483-6829
> 800-827-9989
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
"The beautiful Mohawk Vally"
speed of the tranny. higher stall speed, higher temp. bottom line, the
torque converter makes a big difference.
>I
>>suspect
>>that, at low speeds and in stop and go traffic, the transmission is
>>not
>>producing excessive amounts of heat. I suspect that at high speeds
>>and
>>under load is when the most heat is generated. I could be wrong about
>>this.............snip
>
>My experience is just the opposite. When I first installed my gage I
>nearly had cardiac arrest when I saw the temp move way up in stop and go
>traffic.
>
>On the highway there is less strain on the tranny and the temp stays in
>the low range. High speed doesn't seem to effect the reading as much as
>low speed.
>
>That has been my experience...perhaps others have seen different results.
>
>
>Dave Greenberg
>GMC Motorome Registry
> 200 Macfarlane Drive PH 4
>Delray Beach, FL 33483-6829
> 800-827-9989
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
"The beautiful Mohawk Vally"
> >My experience is just the opposite. When I first installed my gage
>I
> >nearly had cardiac arrest when I saw the temp move way up in stop
>and go
> >traffic.
>
>Interesting.
>
>What kind of transmission cooler where you using? Do you still have
>the
>radiators transmission heat exchanger hooked up?
>
>Dave
>73 Sequoia
>
I am still cooling thru the radiator. I have a cooler up front but I
guess it is an oil cooler.These are tough technical questions for me! [g]
David Lee Greenberg
Boston Homes, Inc
1-800-827-9989
www.bostonhomes.net
>I
> >nearly had cardiac arrest when I saw the temp move way up in stop
>and go
> >traffic.
>
>Interesting.
>
>What kind of transmission cooler where you using? Do you still have
>the
>radiators transmission heat exchanger hooked up?
>
>Dave
>73 Sequoia
>
I am still cooling thru the radiator. I have a cooler up front but I
guess it is an oil cooler.These are tough technical questions for me! [g]
David Lee Greenberg
Boston Homes, Inc
1-800-827-9989
www.bostonhomes.net
