i recall a few years ago reading something about ram on this site. the setup was using ac ducting hose. I was just stumbling around hoe depot at like 6 or 7 this morning and was looking for a way to get rid of my maf to filter hose so then ac ducting came into mind they had 2 kinds semi rigid and non rigid semi rigid looked like it wouldnt seal properly and non rigid (really flexible( looked like i could bolt it andwhere and would rip

any ideas or sugestions?

 

Any duct with an 80mm I.D. (about 3-1/8") will work, but a wire reinforced flexible fabric duct will be the most durable. Tried and industrial rubber supplier?

 

vader.... i'm sure you've seen the hose ducting that they use on commercial lawn equipment (trac-vacs, etc.) why couldn't you use something like that?

it's made out of a heavy rubber material, and is wire reinforced.

 

That's thw stuff, but it's used for a lot more than just lawn equipment. It's a rubberized fabric with spiral wire reinforcement. It's comes in sizes from 2½" to at least 10" (the largest I've used/seen). Used for the aforementioned lawn equipment, industrial dust and mist collection, process material transfer, air supply ducting, protective covering as a conduit for cabling/pneumatics, etc.