Hot Air??

[smtaylor999]

I just recently picked up a 2005 Roadster with the standard 5.0 engine. It runs great and has plenty of power. When test driving I wasn't in the car long enough to notice this problem. But on the way home there was plenty of time. There is a lot of air flow from the engine compartment around the sides of the footwells and into the cockpit. The air starts cold but as the engine heats it gets very hot. Like you have your regular car heater on full blast. How do I stop this air flow? I could probably fashion something but am looking for the right solution.

[DaleG]

One of our vendors sells tubular insulation ~ 3" or so in diameter (like pool noodles) that you stuff between the body and the footboxes, from the underside of the car. Used them on my MKII (#5004, in 2004) and problem was solved. I have an xtra pair. Where are you located?

[edwardb]

Congrats on your new (to you) Roadster. And your first post. Sounds like the builder didn't install the seal between the body and the footbox aluminum. Pretty common problem. Check this thread where it's discussed with some ideas: http://www.ffcars.com/forums/17-factory-five-roadsters/294821-source-expanding-foam-insulation.html

[skullandbones]

If you go the tubular insulation route, be advised that it can migrate so it might need some help staying in place. One route would be to spray a little "Great Stuff" along the edge of the tube. You will be amazed how much better it is when you get the pieces in place. Also, You might find other leaks from the engine bay after you fix the big holes. There is a space above the driver's foot box near the dash that needs some insulation or sealing. It is also a good idea to insulate the dash from the back side and areas around the trans tunnel and inside on each foot box next to the engine. You can pull the carpet back to see if this has been done during the original build. It's not a big deal to do it after the initial build just a little tight to access the foot boxes. You can use the carpet pieces to help make a template for the insulation.

Good luck,

WEK.

[Kpt112]

I planned to avoid the same thing on my build. Here are some pictures of what I found. Unfortunately, you may have to take the body off to get this done.47300

Just use some window air conditioner foam to seal the driver compartment from the engine bay.

Good Luck
Kevin

[edwardb]

Just for the record, check your build manual and provided parts. This is addressed by Factory Five. In the section where the body is installed, the manual describes putting the provided self-adhesive expanding foam around the foot boxes behind the door hinges. You have to stick it down and then immediately start putting the body on. It takes a while (day or two in my experience) but it's starts expanding right away so you want to keep moving. Not everyone likes that solution, and some have said it didn't work for them, e.g. did expand enough to fill the gap. I've had OK luck with it.

[j.miller]

Go to Wallmart yardage dept. They have square bats of pollyfill 18"X18". Remove tire and splash guard, cut polly into 2" strips and tuck between F/B and body. You can use a short stick to push it back and move it around....don't "pack" it in snug, is good......The polyfill is for outdoor pad stuffing it's not just a bag of spun polly