I think the only place you might really need more is in the footboxes on the header sides and the transmission tunnels sides & top. Other than that, I never really felt heat coming through the aluminum.
It's more important to really focus on sealing up the body near the door hinges. the firewall and the rear wall where the rear tires are. A lot more heat comes in through the hinge area that comes through the panels.
Q: Will doubling up the insulation increase the insulating and sound deadening qualities? A: Doubling the insulation does not double its effectiveness. One layer will block 98% of the radiant heat, so the second layer will not have that heat to block. Two layers will block almost all of the heat coming into the car. You will get more sound deadening benefits, however. I would suggest putting two layers on the floor and firewall where most of the heat and sound come through.
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Picked up Kit 7/20/09, Tear down stage complete, Donor 2003 Cobra 4.6L supercharged, 25k miles on engine, IRS, 6-speed. Attended Build School October 08. Mods done, frame powder coated 12/12 http://venomxs.com/index.php?view=ca...tent&Itemid=57
EZ-Cool is cheap so why not, but I don't think it's needed. I have one layer of damplifier for sound and one layer of EZ-Cool for heat. The car is solid and heat isn't a problem. If you decide on a second layer you may need to remove it around your gas pedal. Most of us don't have much space there.
Jeff
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Mark III complete kit ordered 12/03/2007, received #6351 1/22/2008 Homemade mods: driver footbox extension with deadpedal and dimmer switch, widened passenger footbox, brake reservoir mounting bracket, under trunk storage box, custom dash and dash extension, heater forward box, custom glove box, under dash switch panel, Explorer motor carb conversion, first start 7/10/2010, paint by Performance Automotive 11/20/2010-5/7/2011, Graduated 11/22/2011
I think most people find one layer sufficient. Footbox room is limited, so some people addeded insulation in the engine compartment. If your motor isn't in yet you might want to consider some standoff plates to help keep the heat down.
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FFR #7124 Mk 3.1, Levy 5 link, LCA's & brakes, 17" Halibrands, electric PS, SAI, Eibach springs, BOSS 427w, webers, hood louvers, tilt front. Delivered 12/23/09, 1st start 02/19/12. 1st go cart 03/03/12. Titled 10/3/12.
"I'm basing it on a collective interpretation of these particular cars. And whatever the hell I like". The Federalist Patriot Build blog: www.myersfamilyffrbuild.blogspot.com
I think most people find one layer sufficient. Footbox room is limited, so some people addeded insulation in the engine compartment. If your motor isn't in yet you might want to consider some standoff plates to help keep the heat down.
Dallas - I do not mean to hijack the thread but what do u mean by standoff plates? Just another set of aluminum panels on post attached to the engine side of both foot boxes? Has anyone (depending on room and engine size) tried putting a "sandwich" of heat shield material between the engine side of the footboxes and another piece of aluminum on standoffs?
I think the only place you might really need more is in the footboxes on the header sides and the transmission tunnels sides & top. Other than that, I never really felt heat coming through the aluminum.
It's more important to really focus on sealing up the body near the door hinges. the firewall and the rear wall where the rear tires are. A lot more heat comes in through the hinge area that comes through the panels.
That is more important than most realize. Not as much heat comes through the aluminum as people think, way more through the gaps around the dash.
Thanks. Being that this is my second go around I'm familiar with the heat and cold that comes in if the areas around the front vents/dasboard are not sealed off. This, however, is the first time my roadster will have cockpit insulation so I wanted to cover all the bases. I'll use a second layer in the cockpit but not the foot boxes as the space there is extremely limited.
Dallas - I do not mean to hijack the thread but what do u mean by standoff plates? Just another set of aluminum panels on post attached to the engine side of both foot boxes? Has anyone (depending on room and engine size) tried putting a "sandwich" of heat shield material between the engine side of the footboxes and another piece of aluminum on standoffs?
Yes, something like these:
Just an aluminum plate with a small air gap. Works wonders.
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FFR #7124 Mk 3.1, Levy 5 link, LCA's & brakes, 17" Halibrands, electric PS, SAI, Eibach springs, BOSS 427w, webers, hood louvers, tilt front. Delivered 12/23/09, 1st start 02/19/12. 1st go cart 03/03/12. Titled 10/3/12.
"I'm basing it on a collective interpretation of these particular cars. And whatever the hell I like". The Federalist Patriot Build blog: www.myersfamilyffrbuild.blogspot.com
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