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Originally Posted by the head
I'm going to try an aluminum dryer hose. It is expandable but the corrugations of the hose aren't as rough as the plastic type. I also got a vent thing (you'll see a pic soon, I just don't know what to call it) to put on the end of it to act as a kind of scoop. It'll be ugly but I only plan to run it at the track.
Good warning on the PVC. It was way too heavy anyway. Mounting it would have been a chore with the weight.
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And the coil inside it will cause the air to swirl and give you extra power just like the tornado and TB spacer!
Seriously, What about 3" solid metal dryer duct? Not the flexible kind, but the solid pipe like what runs the dryer duct out of the house? It would be smoother inside than the flexible stuff, no toxic gas when it melts like PVC, and I don't think it is as heavy as PVC. You can also get the matching elbow joints you need for your install. Won't be as smooth as a custom molded plastic, but better than the flexible duct.
Also, I was looking at 37L1's pics in his gallery. Looks like if you can get a 3" pipe up there, you will be doing way better than the Volant soda straw. Don't forget the pics!