I have a 460 in my FF MKII and am looking for any ideas on reducing the heat that pours into the driver and passenger compartment. It's been a hot summer and the heat is pretty unbearable. Right now there's not much for insulation (thin sheet metal) and the hot air pours around the end of the dash like a heater vent. It's nice in cold weather but not when it's 90°. Has anyone done anything creative to reduce this?
Seal between the footboxes and body as well as the firewall and body. Spray foam works pretty good for this.
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Assume you have Lizard Skin or Dynamat around your footboxes under you carpet, you can do as Gordon says. Most of my heat comes from around the steering shaft and between the upper cowl/dash. Use pool noodles or pipe insulation to fill the voids. Use caution if using the spray foam as the expansion could bow out your body. I fight with this all the time and haven't been able to seal mine good enough round the steering shaft to prevent the hot air from pouring in there. I have the footbox blowers.....those don't help, so don't bother. If you figure it out, let me know
Top and outer side of footbox. You'll need to remove the aluminum panel behind the front wheels to get in there. I used the expanding foam supplied with the kit.
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I read several threads on this problem, because even with insulation under the carpet it got almost to hot to drive because of the hot air coming in around the foot boxes. I went to Walmart and bought a $3.00 pool noodle, cut in in half and stuffed one half in each side around the foot box. You can't see it and it probably stopped over 90% of the hot air entering the car. I was afraid the expanding foam might change the body position and thought if I ever had to remove the body it could be an issue.
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Mine isnt too bad. The air coming around the dash i havent managed to stop yet and its a tad warm. However the heat coming through the footbox wall is negligible. I painted the entire engine compartment with several coats of Second Skin Firewall and then put foil faced 3/16" fiberglass insulation on the inside under the carpet. Carpet barely gets warm and on an FE the header almost touches the foot box wall. Im going to try and seal up the dash area better this winter. Ive driven in 95* weather here in AL with the humidity at 98% and not sweat down so long as i'm moving.
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