Cooling down the interior
Thread Starter
Race Director
Joined: Jan 2007
Posts: 10,682
Likes: 696
From: Danville Illinois
2025 Corvette of the Year Finalist - Modified
2024 C3 of the Year Winner - Modified
2021 C3 of the Year Finalist - Modified
2019 C3 of Year Finalist (appearance mods)
Cooling down the interior
Does the foil backed foam cool the **** pit interior?
Have 2 rolls of it and would like if its worth the trouble to pull the interior?
I do have 1/8 think padding under the carpet tho.
Have 2 rolls of it and would like if its worth the trouble to pull the interior?
I do have 1/8 think padding under the carpet tho.
Melting Slicks
Joined: Jun 2011
Posts: 3,116
Likes: 598
1978 corvette. It did not help much. I am now thinking the heat shield should be on the underside of the car. Not sure what would be best for this application.
3rd Gear
Joined: Oct 2012
Posts: 3
Likes: 0
I purchase similar Carpet cleaning brisbane product when I changed / replaced my carpet in my
1978 corvette. It did not help much. I am now thinking Carpet Cleaning Sunshine Coast the heat shield should be on the underside of the car. Not sure what would be best for this application.
1978 corvette. It did not help much. I am now thinking Carpet Cleaning Sunshine Coast the heat shield should be on the underside of the car. Not sure what would be best for this application.
Last edited by carpetcleaninggc; Apr 1, 2013 at 12:08 AM.
Burning Brakes
Joined: Apr 2009
Posts: 807
Likes: 2
From: VIRGINIA BEACH VIRGINIA
The best thing I did to cut the heat to the interior is to put a shut off valve to the heater core (installed in the engine compartment) and put reflectix stuff (it is home AC ducting insulation) with a foam inner core up under my carpet in the foot wells and along the tranny tunnel.
Racer
Joined: Apr 2011
Posts: 262
Likes: 16
From: Miami Florida
Look into Second Skin or Hushmat to see the options. Dynamat has something too but tend to be pricier.
Melting Slicks
Joined: Dec 2008
Posts: 2,070
Likes: 5
From: N.Richland Hills Texas
Somewhere in here it was posted that A/C cars have that valve built in.... I cut the heat by about 20 degrees...but it was not cheap.... Hooker headers and sidepipes takes the heat away from the foot wells...
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Your question cannot be answered with a "Yes" or "No" response. That would depend on how the unwanted heat is getting into the passenger compartment.
There are many sources of such heat and they can come into the cockpit via 'expected' means (ie, the heater is ON when it should not be; the water shut-of valve is not functioning, etc.), or from 'unexpected' means (ie, the seal on the kickpanel flapper door is deteriorated and engine heat is being ingested by the air inlet duct at the cowl area).
You must locate the various sources of unwanted heat and address them individually. If that heat in your car is coming ONLY from engine and exhaust system radiant/conduction heating, installing Reflectix or other thermal barrier insulation under the carpeting should reduce that heat significantly.
There are many sources of such heat and they can come into the cockpit via 'expected' means (ie, the heater is ON when it should not be; the water shut-of valve is not functioning, etc.), or from 'unexpected' means (ie, the seal on the kickpanel flapper door is deteriorated and engine heat is being ingested by the air inlet duct at the cowl area).
You must locate the various sources of unwanted heat and address them individually. If that heat in your car is coming ONLY from engine and exhaust system radiant/conduction heating, installing Reflectix or other thermal barrier insulation under the carpeting should reduce that heat significantly.
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
The best way to cool off your C3's interior is to block the heat at its source, and because of the complexity of these cars' HVAC systems that can be a difficult thing to do...
(1)Heat can enter the cabin through a leaking or missing vent plenum seal at the back of the hood.
(2)Heat can enter the cabin through a stuck/ malfunctioning heater valve or because of a leaking/ malfunctioning heater control valve in the console.
(3)Heat can enter the cabin through a worn out/leaking door seal inside the heater/AC plenum.
While insulating the cabin can certainly help (and will make the car quieter if you like your Corvette quiet) it really only helps keep outside heat from radiating through the car body. Heat that flows into the car interior through a leaky/ poorly functioning heater/AC system cannot be stopped by insulating the cabin, and the insulation will then only serve to keep it inside...
(1)Heat can enter the cabin through a leaking or missing vent plenum seal at the back of the hood.
(2)Heat can enter the cabin through a stuck/ malfunctioning heater valve or because of a leaking/ malfunctioning heater control valve in the console.
(3)Heat can enter the cabin through a worn out/leaking door seal inside the heater/AC plenum.
While insulating the cabin can certainly help (and will make the car quieter if you like your Corvette quiet) it really only helps keep outside heat from radiating through the car body. Heat that flows into the car interior through a leaky/ poorly functioning heater/AC system cannot be stopped by insulating the cabin, and the insulation will then only serve to keep it inside...
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