New C3.... is this an issue?
#1
Heel & Toe
Thread Starter
New C3.... is this an issue?
Hello, I am new to Corvettes so I am sorry if this is a dumb question. I just got this car and I discovered there is no lower valance or air dam below the car. Is this going to be an issue for cooling? Is driving without it going to hurt the car?
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Aggitated Monkey (08-25-2016),
Jack Reak (08-25-2016)
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Jack Reak (08-25-2016)
#4
Heel & Toe
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Jack Reak (08-25-2016)
#7
Heel & Toe
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#9
Heel & Toe
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#10
Dr. Detroit
Member Since: Mar 2012
Location: New Braunfels Texas
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When I was a young teen (circa 1984)......my father had a 77' that was missing the front air dam.......car would run 210 or so going down the E-way........
A friend suggested putting the lip spoiler back on and he did.....temp dropped 20 degrees....
There is a reason it is on there
Jebby
A friend suggested putting the lip spoiler back on and he did.....temp dropped 20 degrees....
There is a reason it is on there
Jebby
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Aggitated Monkey (08-25-2016)
#11
Melting Slicks
Member Since: May 2015
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Here's a picture. I hope it's good enough as it's blazing hot this afternoon and I don't feel like jacking up the front of the car
Notice how the air dam forces air up through the holes in the valance.
Notice how the air dam forces air up through the holes in the valance.
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Jack Reak (08-25-2016)
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Jack Reak (08-25-2016)
#14
Team Owner
Here's the 'skinny':
The design of the cooling system has airflow directed upward through the lower valance and into the radiator by that [vinyl] air dam. So, yes, it is important to get the needed airflow into the radiator. With all the headlamp gizmos and other stuff in front, there isn't enough frontal area for air input directly, so the lower path was needed also.
Right now your valence area is completely open. If you had something to deflect air upward into the radiator, you really wouldn't need the valence panel [for functional reasons, anyway]. If you don't have an air dam when you are on the highway, the airflow ACROSS the valence opening might actually pull air OUT of the engine compartment and cooling would be quite restricted.
The design of the cooling system has airflow directed upward through the lower valance and into the radiator by that [vinyl] air dam. So, yes, it is important to get the needed airflow into the radiator. With all the headlamp gizmos and other stuff in front, there isn't enough frontal area for air input directly, so the lower path was needed also.
Right now your valence area is completely open. If you had something to deflect air upward into the radiator, you really wouldn't need the valence panel [for functional reasons, anyway]. If you don't have an air dam when you are on the highway, the airflow ACROSS the valence opening might actually pull air OUT of the engine compartment and cooling would be quite restricted.
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Jack Reak (08-25-2016)
#15
Melting Slicks
Member Since: May 2015
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Here's the 'skinny':
The design of the cooling system has airflow directed upward through the lower valance and into the radiator by that [vinyl] air dam. So, yes, it is important to get the needed airflow into the radiator. With all the headlamp gizmos and other stuff in front, there isn't enough frontal area for air input directly, so the lower path was needed also.
Right now your valence area is completely open. If you had something to deflect air upward into the radiator, you really wouldn't need the valence panel [for functional reasons, anyway]. If you don't have an air dam when you are on the highway, the airflow ACROSS the valence opening might actually pull air OUT of the engine compartment and cooling would be quite restricted.
The design of the cooling system has airflow directed upward through the lower valance and into the radiator by that [vinyl] air dam. So, yes, it is important to get the needed airflow into the radiator. With all the headlamp gizmos and other stuff in front, there isn't enough frontal area for air input directly, so the lower path was needed also.
Right now your valence area is completely open. If you had something to deflect air upward into the radiator, you really wouldn't need the valence panel [for functional reasons, anyway]. If you don't have an air dam when you are on the highway, the airflow ACROSS the valence opening might actually pull air OUT of the engine compartment and cooling would be quite restricted.
That's exactly why I suggested against highway driving without the assembly! While I suspect that the valance is a rather expensive part its prime function is to support the air dam. While I suppose you could rig something to direct air up through the radiator don't forget that it must resist the flow of air at high velocity.
#16
Safety Car
For the underbody parts, I would install #3 from sheet 2 along with #3 and #6 from sheet 3 from the AIM sheets that Peterbuilt posted.
Here's a pic of my '77 with all 3 items installed.
Like the others said, when you reinstall the radiator make sure to install the foam seals around it.
Good luck with your project.
Here's a pic of my '77 with all 3 items installed.
Like the others said, when you reinstall the radiator make sure to install the foam seals around it.
Good luck with your project.
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Jack Reak (08-25-2016)