The Vettes I've seen are all four row, and eat up all their end
tank's solder puddle area:
http://cgi.ebay.com/ebaymotors/1973-...QQcmdZViewItem
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Mike Romain wrote:
>
> I have a fixed fan and don't have low speed cooling issues at all. My
> problem is at high speed.
>
> The 'stock' radiators I see are all the same 'thickness', they just
> leave space blank for a second or 3rd row.
>
> I have seen custom rads for Vette engines that were 2 row with really
> wide rows.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's

 

The Vettes I've seen are all four row, and eat up all their end
tank's solder puddle area:
http://cgi.ebay.com/ebaymotors/1973-...QQcmdZViewItem
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Mike Romain wrote:
>
> I have a fixed fan and don't have low speed cooling issues at all. My
> problem is at high speed.
>
> The 'stock' radiators I see are all the same 'thickness', they just
> leave space blank for a second or 3rd row.
>
> I have seen custom rads for Vette engines that were 2 row with really
> wide rows.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's

 

I did my upgrade for over heating at high speeds (60ish mph) as well. It's
helped.

As for a shroud, I thought they were for low speeds and idling. At high
speed isn't the majority of airflow from the vehicle's movement and not
the fan?

This is a good discussion, wish we had it before I spent my money...

--Charlie

"Jerry Bransford" <jerrypb@***.net> wrote in message
news:Sm%%e.80813$ct5.30542@fed1read04...
> Wow yeah, heck yeah, I'd definitely install that shroud before even trying
> anything else. A friend of mine with a '73 CJ5 finally installed a shroud
> to fix his AMC 304's overheating after 3-4 years of ignoring my saying
> it'd cure the overheating. It did and he grudgingly admitted he should
> have installed it during the restoration process. :)
>
> Jerry
>
> Mike Romain wrote:
>> It was a new rad 7 years ago and is still nice and painted black. It
>> started overheating on the highway just after I put the winch on. If I
>> hit the heater on high, it will compensate enough to keep the gauge out
>> of the red. Yes, the gauge works because I put a fail safe t-stat in and
>> failed the
>> sucker first highway run so now I have instant water flow through the
>> rad on startup.
>>
>> I am thinking a fan shroud might help, my CJ didn't come with one, but I
>> now need a rad anyway because I literally snapped mine in half on our
>> twisty trails. The side straps broke due to the frame flexing too
>> much. My 'glass body with the one piece front clip lets the frame twist
>> like crazy.
>>
>> I now just have the rad rubber mounted to the frame I built for it by
>> the two top bolts with the lower ones free to swing. It has held
>> together that way but I made all my core tubes over 1/4" longer when I
>> snapped it....
>>
>> Mike
>>
>> Jerry Bransford wrote:
>>
>>>How are the fins on your present radiator Mike? Are they clogged or
>>>bent up? Some fins are so close together I'm surprised the radiators
>>>they're in can cool an engine at all.
>>>
>>>Jerry
>>>
>>>Mike Romain wrote:
>>>
>>>>I have a fixed fan and don't have low speed cooling issues at all. My
>>>>problem is at high speed.
>>>>
>>>>The 'stock' radiators I see are all the same 'thickness', they just
>>>>leave space blank for a second or 3rd row.
>>>>
>>>>I have seen custom rads for Vette engines that were 2 row with really
>>>>wide rows.
>>>>
>>>>Mike
>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>88 Cherokee 235 BFG AT's
>>>>
>>>>Jerry Bransford wrote:
>>>>
>>>>
>>>>>Billy Ray wrote:This would be true IF the radiators were the
>>>>>
>>>>>
>>>>>>same thickness but they are NOT. 1 cores are thinner than 2 cores
>>>>>>that are
>>>>>>thinner than 3 cores that are thinner than 4 cores, etc.
>>>>>
>>>>>While that may be true of the import radiators that particular shop
>>>>>sells, that's not true of all aftermarket radiators. The 2 row
>>>>>radiators made by the two manufacturers I spoke to about this are about
>>>>>the same thickness as other 3 row and even some 4 row. That's how both
>>>>>the water channels and spacing demensions between them are bigger in
>>>>>many 2 row radiators. By the way, it's not 2, 3, or 4 core, it's 2, 3,
>>>>>or 4 row. And why most into slow-speed offroading that know what
>>>>>they're doing choose two row radiators because they cool far better at
>>>>>low speeds. :)
>>>>>
>>>>>Jerry
>>>>>--
>>>>>Jerry Bransford
>>>>>PP-ASEL N6TAY
>>>>>See the Geezer Jeep at
>>>>>http://members.***.net/jerrypb/
>>>
>>>--
>>>Jerry Bransford
>>>PP-ASEL N6TAY
>>>See the Geezer Jeep at
>>>http://members.***.net/jerrypb/
>
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/

 

I did my upgrade for over heating at high speeds (60ish mph) as well. It's
helped.

As for a shroud, I thought they were for low speeds and idling. At high
speed isn't the majority of airflow from the vehicle's movement and not
the fan?

This is a good discussion, wish we had it before I spent my money...

--Charlie

"Jerry Bransford" <jerrypb@***.net> wrote in message
news:Sm%%e.80813$ct5.30542@fed1read04...
> Wow yeah, heck yeah, I'd definitely install that shroud before even trying
> anything else. A friend of mine with a '73 CJ5 finally installed a shroud
> to fix his AMC 304's overheating after 3-4 years of ignoring my saying
> it'd cure the overheating. It did and he grudgingly admitted he should
> have installed it during the restoration process. :)
>
> Jerry
>
> Mike Romain wrote:
>> It was a new rad 7 years ago and is still nice and painted black. It
>> started overheating on the highway just after I put the winch on. If I
>> hit the heater on high, it will compensate enough to keep the gauge out
>> of the red. Yes, the gauge works because I put a fail safe t-stat in and
>> failed the
>> sucker first highway run so now I have instant water flow through the
>> rad on startup.
>>
>> I am thinking a fan shroud might help, my CJ didn't come with one, but I
>> now need a rad anyway because I literally snapped mine in half on our
>> twisty trails. The side straps broke due to the frame flexing too
>> much. My 'glass body with the one piece front clip lets the frame twist
>> like crazy.
>>
>> I now just have the rad rubber mounted to the frame I built for it by
>> the two top bolts with the lower ones free to swing. It has held
>> together that way but I made all my core tubes over 1/4" longer when I
>> snapped it....
>>
>> Mike
>>
>> Jerry Bransford wrote:
>>
>>>How are the fins on your present radiator Mike? Are they clogged or
>>>bent up? Some fins are so close together I'm surprised the radiators
>>>they're in can cool an engine at all.
>>>
>>>Jerry
>>>
>>>Mike Romain wrote:
>>>
>>>>I have a fixed fan and don't have low speed cooling issues at all. My
>>>>problem is at high speed.
>>>>
>>>>The 'stock' radiators I see are all the same 'thickness', they just
>>>>leave space blank for a second or 3rd row.
>>>>
>>>>I have seen custom rads for Vette engines that were 2 row with really
>>>>wide rows.
>>>>
>>>>Mike
>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>88 Cherokee 235 BFG AT's
>>>>
>>>>Jerry Bransford wrote:
>>>>
>>>>
>>>>>Billy Ray wrote:This would be true IF the radiators were the
>>>>>
>>>>>
>>>>>>same thickness but they are NOT. 1 cores are thinner than 2 cores
>>>>>>that are
>>>>>>thinner than 3 cores that are thinner than 4 cores, etc.
>>>>>
>>>>>While that may be true of the import radiators that particular shop
>>>>>sells, that's not true of all aftermarket radiators. The 2 row
>>>>>radiators made by the two manufacturers I spoke to about this are about
>>>>>the same thickness as other 3 row and even some 4 row. That's how both
>>>>>the water channels and spacing demensions between them are bigger in
>>>>>many 2 row radiators. By the way, it's not 2, 3, or 4 core, it's 2, 3,
>>>>>or 4 row. And why most into slow-speed offroading that know what
>>>>>they're doing choose two row radiators because they cool far better at
>>>>>low speeds. :)
>>>>>
>>>>>Jerry
>>>>>--
>>>>>Jerry Bransford
>>>>>PP-ASEL N6TAY
>>>>>See the Geezer Jeep at
>>>>>http://members.***.net/jerrypb/
>>>
>>>--
>>>Jerry Bransford
>>>PP-ASEL N6TAY
>>>See the Geezer Jeep at
>>>http://members.***.net/jerrypb/
>
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/

 

I did my upgrade for over heating at high speeds (60ish mph) as well. It's
helped.

As for a shroud, I thought they were for low speeds and idling. At high
speed isn't the majority of airflow from the vehicle's movement and not
the fan?

This is a good discussion, wish we had it before I spent my money...

--Charlie

"Jerry Bransford" <jerrypb@***.net> wrote in message
news:Sm%%e.80813$ct5.30542@fed1read04...
> Wow yeah, heck yeah, I'd definitely install that shroud before even trying
> anything else. A friend of mine with a '73 CJ5 finally installed a shroud
> to fix his AMC 304's overheating after 3-4 years of ignoring my saying
> it'd cure the overheating. It did and he grudgingly admitted he should
> have installed it during the restoration process. :)
>
> Jerry
>
> Mike Romain wrote:
>> It was a new rad 7 years ago and is still nice and painted black. It
>> started overheating on the highway just after I put the winch on. If I
>> hit the heater on high, it will compensate enough to keep the gauge out
>> of the red. Yes, the gauge works because I put a fail safe t-stat in and
>> failed the
>> sucker first highway run so now I have instant water flow through the
>> rad on startup.
>>
>> I am thinking a fan shroud might help, my CJ didn't come with one, but I
>> now need a rad anyway because I literally snapped mine in half on our
>> twisty trails. The side straps broke due to the frame flexing too
>> much. My 'glass body with the one piece front clip lets the frame twist
>> like crazy.
>>
>> I now just have the rad rubber mounted to the frame I built for it by
>> the two top bolts with the lower ones free to swing. It has held
>> together that way but I made all my core tubes over 1/4" longer when I
>> snapped it....
>>
>> Mike
>>
>> Jerry Bransford wrote:
>>
>>>How are the fins on your present radiator Mike? Are they clogged or
>>>bent up? Some fins are so close together I'm surprised the radiators
>>>they're in can cool an engine at all.
>>>
>>>Jerry
>>>
>>>Mike Romain wrote:
>>>
>>>>I have a fixed fan and don't have low speed cooling issues at all. My
>>>>problem is at high speed.
>>>>
>>>>The 'stock' radiators I see are all the same 'thickness', they just
>>>>leave space blank for a second or 3rd row.
>>>>
>>>>I have seen custom rads for Vette engines that were 2 row with really
>>>>wide rows.
>>>>
>>>>Mike
>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>88 Cherokee 235 BFG AT's
>>>>
>>>>Jerry Bransford wrote:
>>>>
>>>>
>>>>>Billy Ray wrote:This would be true IF the radiators were the
>>>>>
>>>>>
>>>>>>same thickness but they are NOT. 1 cores are thinner than 2 cores
>>>>>>that are
>>>>>>thinner than 3 cores that are thinner than 4 cores, etc.
>>>>>
>>>>>While that may be true of the import radiators that particular shop
>>>>>sells, that's not true of all aftermarket radiators. The 2 row
>>>>>radiators made by the two manufacturers I spoke to about this are about
>>>>>the same thickness as other 3 row and even some 4 row. That's how both
>>>>>the water channels and spacing demensions between them are bigger in
>>>>>many 2 row radiators. By the way, it's not 2, 3, or 4 core, it's 2, 3,
>>>>>or 4 row. And why most into slow-speed offroading that know what
>>>>>they're doing choose two row radiators because they cool far better at
>>>>>low speeds. :)
>>>>>
>>>>>Jerry
>>>>>--
>>>>>Jerry Bransford
>>>>>PP-ASEL N6TAY
>>>>>See the Geezer Jeep at
>>>>>http://members.***.net/jerrypb/
>>>
>>>--
>>>Jerry Bransford
>>>PP-ASEL N6TAY
>>>See the Geezer Jeep at
>>>http://members.***.net/jerrypb/
>
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/

 

Jerry Bransford says...
> Wow yeah, heck yeah, I'd definitely install that shroud before even
> trying anything else. A friend of mine with a '73 CJ5 finally installed
> a shroud to fix his AMC 304's overheating after 3-4 years of ignoring my
> saying it'd cure the overheating. It did and he grudgingly admitted he
> should have installed it during the restoration process. :)

>[]

I can only contribute this: My '85 CJ came with a factory three-row
radiator, a clutch fan, and a shroud. On the hottest summer days sitting in
traffic the gauge never leaves its favorite spot in the low green.

OTOH, every winter I cover all but the top 1/2" with cardboard or something
in an effort to get more heat. The gauge still stays in the low green
except at sustained highway speeds, when it might move toward to middle.
It's the best cooling I've had since my '69 Dodge Super Bee (also with
heavy-duty cooling).


--

Dale Beckett

 

Jerry Bransford says...
> Wow yeah, heck yeah, I'd definitely install that shroud before even
> trying anything else. A friend of mine with a '73 CJ5 finally installed
> a shroud to fix his AMC 304's overheating after 3-4 years of ignoring my
> saying it'd cure the overheating. It did and he grudgingly admitted he
> should have installed it during the restoration process. :)

>[]

I can only contribute this: My '85 CJ came with a factory three-row
radiator, a clutch fan, and a shroud. On the hottest summer days sitting in
traffic the gauge never leaves its favorite spot in the low green.

OTOH, every winter I cover all but the top 1/2" with cardboard or something
in an effort to get more heat. The gauge still stays in the low green
except at sustained highway speeds, when it might move toward to middle.
It's the best cooling I've had since my '69 Dodge Super Bee (also with
heavy-duty cooling).


--

Dale Beckett

 

Jerry Bransford says...
> Wow yeah, heck yeah, I'd definitely install that shroud before even
> trying anything else. A friend of mine with a '73 CJ5 finally installed
> a shroud to fix his AMC 304's overheating after 3-4 years of ignoring my
> saying it'd cure the overheating. It did and he grudgingly admitted he
> should have installed it during the restoration process. :)

>[]

I can only contribute this: My '85 CJ came with a factory three-row
radiator, a clutch fan, and a shroud. On the hottest summer days sitting in
traffic the gauge never leaves its favorite spot in the low green.

OTOH, every winter I cover all but the top 1/2" with cardboard or something
in an effort to get more heat. The gauge still stays in the low green
except at sustained highway speeds, when it might move toward to middle.
It's the best cooling I've had since my '69 Dodge Super Bee (also with
heavy-duty cooling).


--

Dale Beckett