Too much radiator? - Team Camaro Tech
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post #1 of 11 (permalink) Old Apr 30th, 10, 02:12 PM Thread Starter
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Too much radiator?

This may sound like a dumb question,but,I have a 4 row aluminum radiator that the core measures 22.75 inches x 17 inches,When I started my 327 for initial breakin on new rebuild(30 [email protected] rpm)then idleing for a while.It took about 50 min. to reach 180 degrees the temp in the shop was about 65 degrees.So do I need to go with a smaller radiator maybe a 3 row?
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post #2 of 11 (permalink) Old Apr 30th, 10, 03:42 PM
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Re: Too much radiator?

check your thermostat.

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post #3 of 11 (permalink) Old Apr 30th, 10, 04:53 PM Thread Starter
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Re: Too much radiator?

The t'stat is a180 it is not opening till then,just takes so long to get there.
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post #4 of 11 (permalink) Old Apr 30th, 10, 06:13 PM
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Re: Too much radiator?

The radiator should have no impact on your car reaching temp from startup. I have heard of people with high flow water pumps and those thermostats with holes in them being able to pull water through almost like having the thermostat removed.

Another thing that might be an issue but probably not is where your temperature probe is installed. It's good to use a little infrared thermo gun to check temps on a new build so you're not relying on stuff that hasn't been tested yet. I bought a car one time that someone had put the temperature sender in one of the friggin' vacuum ports on the intake.

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post #5 of 11 (permalink) Old Apr 30th, 10, 06:33 PM
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Talking Re: Too much radiator?

Quote:
Originally Posted by Steiner View Post
... I bought a car one time that someone had put the temperature sender in one of the friggin' vacuum ports on the intake.

now that's something I haven't run into
"What a M-a-r-o-o-n"

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post #6 of 11 (permalink) Old Apr 30th, 10, 07:50 PM
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Re: Too much radiator?

Quote:
Originally Posted by Steiner View Post
The radiator should have no impact on your car reaching temp from startup. I have heard of people with high flow water pumps and those thermostats with holes in them being able to pull water through almost like having the thermostat removed.

Another thing that might be an issue but probably not is where your temperature probe is installed. It's good to use a little infrared thermo gun to check temps on a new build so you're not relying on stuff that hasn't been tested yet. I bought a car one time that someone had put the temperature sender in one of the friggin' vacuum ports on the intake.
LOL maybe he thought he needed a IAT gauge.

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post #7 of 11 (permalink) Old Apr 30th, 10, 08:38 PM
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Re: Too much radiator?

Quote:
Originally Posted by 68basecoupe View Post
This may sound like a dumb question,but,I have a 4 row aluminum radiator that the core measures 22.75 inches x 17 inches,When I started my 327 for initial breakin on new rebuild(30 [email protected] rpm)then idleing for a while.It took about 50 min. to reach 180 degrees the temp in the shop was about 65 degrees.So do I need to go with a smaller radiator maybe a 3 row?
I am going out on limb here and say you have a 2 core aluminum rad the same thickness as an old brass/copper 4 core.Not that it matters..but did you remove the rad cap and visually see 4 rows.
Regardless of that..run a 180*f non bypass stat and retain your current rad.You'll be glad you did when ambients hit over 90*f and stuck in grid lock traffic.
Not sure on how you broke in the cam with what timing an a/f ratio.If your advanced and rich..the 327 will take longer to reach operating temp.
Once you get the timing curve and carb settings spot on,you may find the 327 reaches operating temp quicker.

George
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post #8 of 11 (permalink) Old Apr 30th, 10, 10:38 PM
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Re: Too much radiator?

The themostat even if brand new, it is not uncommon since the chinese make them to be duds
Bottom line, if stuck closed the engine will over heat
Stuck open or partly open it will take for ever to heat up
Regardles of the size of the radiator, type of pump or what ever.

And for a sb to run too cold or to hot because of the mixtures or advance, you would know straight away, it will run so bloody rough.

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post #9 of 11 (permalink) Old May 2nd, 10, 11:18 AM Thread Starter
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Re: Too much radiator?

[QUOTE=fatblock;1418477]I am going out on limb here and say you have a 2 core aluminum rad the same thickness as an old brass/copper 4 core.Not that it matters..but did you remove the rad cap and visually see 4 rows.
It is a 4 row,3inch thick, Champion radiator that I picked up at the Moultrie swap meet for $275 with the brackets on it for first gen camaros.It holds 4 gallons of coolant. They also make a 3 row.I think scince driving it yesterday (85 degrees 80% humidity) my cooling will not be an issue.Still curious can you have to much radiator?
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post #10 of 11 (permalink) Old May 2nd, 10, 11:21 AM
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Re: Too much radiator?

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Originally Posted by 68basecoupe View Post
Still curious can you have to much radiator?
No, not with a good working thermostat. The most it would be is a bit of extra weight on the front nose of the car. But in summer pulling long grade with full load of passengers and ton of crap in the trunk you might be glad you had such over capacity.

Ed

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post #11 of 11 (permalink) Old May 2nd, 10, 11:44 AM Thread Starter
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Re: Too much radiator?

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Originally Posted by BigBlock1969RS View Post
No, not with a good working thermostat. The most it would be is a bit of extra weight on the front nose of the car. But in summer pulling long grade with full load of passengers and ton of crap in the trunk you might be glad you had such over capacity.
That would be Cruisin the Coast this October in Biloxi,Ms.lol
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