The waste gate is sensative to manifold pressure. To run it with carbs as opposed to EFI you first have to decide if it is designed for blow through or draw through. IE is it a dry huffer or a wet huffer. If it is wet then it is just a matter of building an adapter for carbs to set on. if its a blow through your carbs will need to be set up for blow through and they will set inside an air box. If it is a dry huffer it will not work wet or vice versa.
not true, a draw through set up has carbon thrust washer to handle the fuel, a blower like that is for a "blow though" set up, it blows through a manifold that has fuel injectors in it and the fuel never gets p***ed through the blower. Please read up before you spend needless money in the wrong direction. That blower will work, just blow through the carb. set it up w/ a "hat"
Dude, Injection means injection into the manifold or directly into the cylinder ports. The blower sees only air. I don't mean to be rude, but if you don't know that then perhaps you should reconsider such an ambitious and techically difficult project.
Dan, Don't overthink it...the engine and blower were never meant to work together, so you'll die trying to achieve an "optimum" setup. My comments regarding the plenum size were more a matter of practicality in fitting the blower outlet flange to the manifold and maintaining some sort of even distribution to the cylinders. As far as side mounting the blower, there's no reason it shouldn't work...the only problems I can see would be proper lubrication for the drive gears and possible fuel puddling in the bottom of the blower case. If it were me, I'd figure out some way to leave it upright, but don't let that dissuade you... I'm currently (off and on) working on mounting one of these on the front of a BMW V12, much like the old blower Bentleys from the late 20s. I'm thinking seriously about Propane fuel, as the blower will be mounted at crankshaft height, and it will also allow me to use one big carb. We'll see... Notwithstanding the expertise of the other posters, I would personally still stay away from a "blow-through" setup using any type of Roots blower, as opposed to a centrifugal supercharger.
Now Buddy, lets not forget a similar discussion a year or two ago. Although I did think about pasting this in the "Dumb Things an Expert Told You" thread. Still this is your chance to rise above and p*** on the knowledge.
Difference is Rich, you recognized that I was trying to learn, and answered my questions. If he hadn't insulted me, I would have p***ed on to him, the information you p***ed on to me, and corrected his misinformed statement!
Yes, I know you can mount a Hillborn on top of a blower, but we were discussing a modern EFI system that this blower was formerly married to. In that instance, the blower sees only air, and as a previous post pointed out, that it was designed to see only air.
Actually we are pretty thick skinned for the most part. 38Flatty I think I caught that you have changed directions but just for grins couldn't you run a hat on it and then instead of putting you squirters in the plate below the hat run them directly into your intake runners? Uh did someone already say that? If you decide to abandon that huffer maybe one of the banger or inline 6 guys would like to use it. It could run on one side of the engine and be plumbed to blow through the carbs on the other side of the engine.
Pork'n'******, Yep, I don't see why you couldn't do that. I went with a B&M 144, and port injection. I was going to set the blower up to run dry, but the blower dude said I'd lose 10%. I then decided to run two nozzles up top, and have the port injectors come on at higher rpms. RichFox pointed out the error of my ways, and I went another direction. I decided to build the engine for Bonneville, and sold ALL my hotrod parts to a gent in Brisbane. I'm now working on building a race type motor, with a 6-71 and Enderle bird catcher injection. ...and Mike51Merc, you're not likely to hurt anyone's feeling here! Comments like that, though, won't get you far. No harm, no foul.
My comment wasn't meant to be rude (as I said "I don't mean to be rude...). It's just that we get so many spitballers and jaw*****s on this forum that it seemed to me that you were getting into deep thought on a non-feasible project. As for getting far, I do ok.
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