Topic: Cockpit Heat Reduction
in Forum: C3 Interior
It's approaching summer down is this neck of the woods, though the way the weather has been lately you wouldn't think so.
The internal cockpit temperature in my 78 is nice in winter but it's gonna be a killer in summer (aircon doesn't work yet), so apart from fixing the heater, romoving the T-Tops or winding the windows down, are there any suggestion you guys have to reduce the heat in the cockpit.
I have heard of a product by Thermo-Tech called Cool-It, which looks to be a foil lined fabric that you can installed under the carpet so it reflects the heat back to the engine bay and gear box but I cant get it down here (distributor doesn't stock it). I'm contemplating importing it myself.
1. Have you heard of it and is it any good?
2. Do you know of any alternatives that will do the job?
It would be great to be able to buy preformed/cut section for my 78 rather than having to buy sheets and cut it myself, lazy I know.
Cheers
aka Harry Tasker
Lifetime MemberModerator
, you might want to thumb thru this post, and see if it can give you any hints/help. 
Int. Heat Problems
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Thanks for that, some interesting reading . I was out in it today and my right leg is now well done.
Cheers
aka Harry Tasker
Lifetime MemberModerator
You might try wrapping the exhaust pipes, under the cockpit area, with the insulating material used around header pipes(don't recall name). It comes in a roll and you can find it at Summit Racing or Jeg's. It's not a cure-all but it's gotta help some. Good luck.
JR
Harrytasker, did my interior with the reflects heat foil. Easy to work with, cuts with plain old siccors and glue down with spray adhesive. Only drawback is you have to pull the carpet out. Even so, I say it is well worth the effort. Might be a good excuse to get new carpet. Anyway, here is a link to a picture of mine with the insulation in.
http://www.c3vetteregistry.com/member_uploads/7101_7200/7104 /int%20insullation.JPG
Thanks for all your inputs guys . I surfed the net looking for the products mentioned and ended up purchasing a Dynamat Xtreme Kit from Summit Racing Equipment. Their price was quite good compared to what Dynamat and other distributors were advertising.
Now I just have to contemplate ripping the interior of my car out, something I'm not looking forward to.
Cheers
aka Harry Tasker
cockpit. It seemed like the heater was always on. There is an adjustment
under the dash for one of the cables that was way out and also the heater
vacuum valve was leaking by. After I replaced the valve and adjusted the
cable the interior is now a lot cooler. When I redo the interior we are
going to put the insulating material under the new carpet. However, it
seems now that we really don't need it anymore. The heater control valve
it seems needs vacuum to turn off, so if its not getting enough vacuum or
is not closing all the way for some reason or another, the heat will seep
into the cockpit. It felt like it was coming up through the floor, but it was
coming out the bottom vents at a very slow rate. Just a thought.
I know each model year is different, but my experience mimics that of ammo6. I put a manual cutoff valve in my heater hose and that solved ALL of my cockpit heat problems. That may be all you need to do.
chesh,
i like your idea of the installing that cutoff valve. it seems like a good idea to try that before ripping out carpet. where exactly in your heater hose did you put it?
