Is this a reasonable location to monitor vacuum / boost ?
Ignore my comment about blower rotation. I got mixed-up looking at the blower being upside-down and backwards. Original post edited. Carry on.
I can't explain how he's getting 15psi with that combination of parts.
Somewhere between the blower and the intake port ought to be fine.
I was thinking if it made 15 psi, it would pop, I would then let off the throttle. I’m not worried about building boost at that point. I was thinking about air leak after the carb. Only fuel from the idle circuit, but then extra air coming in from the leak (popped valve). Or maybe the blower just pushes mixture out the leak and not in. I get confused thinking about the pumping of the thumper mixed with constant turning of the blower. Single cylinder boosted engineers aren’t that common.Explosion valve yes, blow off valve no! Blowers do not continue to build boost when the throttle valve is closed. Turbochargers do! Besides you do not want a bunch of fuel vapors floating around the air if that thing decides to open. Unless you like being on fire?
I’m not confusing superchargers with turbochargers. I don’t know about either. LolWith a blower you do not need boost control, that’s what different sized pulleys are for. What you do need is a burst panel in case of backfire so you don’t end up wearing the blower. You keep confusing blowers with turbochargers.