procharger ducting q's?
 

Is there any advantages to getting rid of couplings when it comes to ducting? Is it worth trying to get some custom welded longer sections of pipe so I dont have so many couplings? Less leaks? Smoother air flow? Look cleaner? Also can anyone reccomend a place to get mandrel bent 3" tubing? Is there any difference between aluminized steel? Mild steel? Stainless?

Go with alum. You can get it pretty cheap on eBay

I agree, plus the alum will not get rust scale inside of it and is a lot lighter than steel. Make sure the ends are bead rolled to keep the hose/silicone from blowing off. You can buy a manual bead roller although they are expensive. T bolt clamps work much better than band clamps for securing the plumbing. Bob

I've also read where you can spray the pipe with some hairspray prior to putting on the coupler and at first it allows it to slide on easier, but once dry, it helps seal the connection.

Interesting... Im gonna try that when I install my F1.

so there doesnt seem to be much concern about # of couplings? I was curious if anyone had found a noticable difference by getting rid of couplings and welding different pipe sections together?

The only way I see the added couplings causing a problem would be if they were either leaking or causing a restriction in some way. Good quality four and five ply silicone and t-bolt clamps are not cheap, so you could potentially save some money by welding the system together. This could also eliminate the possibility of future leaks. Bob