looks good..
so what heat exchanger are you going with?
looks like a different throttle control than u pictured?
is that 2 exhaust pipes going down, and your just going to use 1 for exchanger?
what heat exchange controls are u going to implement?
best of all....from the video....sounds quiet..
Yes you are correct,that is my collector box, one exhaust port is going to go to a Hx box that I am going to make it will sit in the open area between the mufflers.
I had to come up with a different throttle pull than the one I pictured I found out was either full on or full off and I wanted one to pull as I needed it as vac load increases. As far as how I am going to control HX this is what I am wanting to use if I can make it work it will be remote controlled from the house. I really want this to work because it would be so cool to be cleaning and if I want MORE or LESS heat or NO heat it will be able to be done without going all the way back out to the van to adjust. You can get a remote key chain like a car alarm.
http://www.quicktimeperformance.com/
And you are very correct I am pulling more cfm than my legend and it is very quiet,the noise you can hear is because I haven't clamped all of my exhaust together just yet so you can hear the exhaust leaks from the J tubes of the vw exhaust. I don't want to waste clamps every time I make a adjustments. But it is very quiet considering the power I am getting out of it.
When I do use it I don't think I will really go all out with it, I am currently happy with my vac on my legend. What I want more of is HEAT. My target cfm number for just cleaning on a regular basis is going to be around 350 cfm at the wand and I am above that already with VW TM at just off of idle at 400 cfm. If I give it anymore gas it shots up in the 500 cfm range no problem.
What I have come to realize in my cleaning history is 2.0 hose flows pretty good air as long as you stay in the mid to high 300 cfm when you get above that the 2.0 hose becomes very restrictive and I think you start to loose performance because you start to battle with the hose restriction kinda like 1.5 hose vrs 2.0 hose.
With the tests I have done so far to make this perform at its best would be two 5 foot 2.5 hoses to back of Dev filter then 2.5 to a whip of 25 ft of 2.0 hose and even then when I put that short of 2.0 the machine starts to kick up the rpms because of the load.