Is anyone here experienced with a blower motor?

Not an a/c blower either.....
I am knocking around the idea of putting a blower on my 440 truck project, but I do not know much about them. I do know that the engine has to be near stock compression....right??
But like I said, I don't know much about them and around my area you don't see many at all. But the few that you do see around here never seem to run good. For instance, I saw one at a show yesterday and it was loading up, and smoking everywhere.......I felt sorry for the guy driving it because I knew he was getting upset.....and I remember another instance where a 48 Chevy truck with a blower was being run across an auction block at a sale I was at one time, they ended up having to push him across the block....so, those few examples being said............are these things streetable as a weekend cruiser that would only be driven once or twice a month?
And fill me in on the details, since this blower would be on a 440 in a truck, I want it to stick way up out of the hood....how do I do that?

You've already narrowed it down to a Roots-type supercharger, so that'll help you deciding which one to choose.

Yes, they are streetable. Choose a reasonable compression ratio and a reasonable displacement superchrager and it'll be fun. Too much of either one and you'll be frustrated, too.

Yes, very streetable. My friend has a 10-1 451 in a 71 Charger with a 8-71 blower and two holley 750's on it and you could drive it anywhere. I would not be afraid and get in and go to Carlisle (about 350 mi one way) or the nats in this thing. It gets about 10 mpg if you stay out of it, just about starts like it has fuel injection---heck we even started it when it was 10 degrees out side because we had to move it--and it still started and ran better than a regular carbed car. It even runs smoother than his 472 Hemi 69 Roadrunner he has.


AS a side note, a blower on a 440 in a truck is not going to stick out of the hood a whole lot. I have seen them before, the carbs are about half way through the hood. I guess you could put an intercooler between the intake and blower for another coule inches, but unless you start raising the engine radically in the stock chassis, thats about where its going to sit.

A blower on a high compression motor (above 8 to 1) is a compromise. To get best performance the motor must be built low comp. to allow the blower to build some boost. Otherwise the blower has to run a huge top puley to keep its RPM down so it doesnt make much boost and is mainly for show.

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A blower on a high compression motor (above 8 to 1) is a compromise. To get best performance the motor must be built low comp. to allow the blower to build some boost. Otherwise the blower has to run a huge top puley to keep its RPM down so it doesnt make much boost and is mainly for show.

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This is also true if dealing with pump gas, but they do certianly run good with a little pop in them. Because my friends car was built originally at 10-1, he had to comprimise a little on the boost. I had a bone stock 400 with a measly 7.2 to 1 and about 8-10 psi of boost on a turbo. I was not disappointed in the least, but i would shoot for 8-9 to 1 with leaning towards the higher side if i was going to build something specific for the street and light strip use, running on pump 92 or better and doing full throttle/load blasts with it.

I looked long and hard at an 89 octane blower motor and you have to get it down to about 7 -7.5 to 1 with about 6 psi to do it. Remember, you are basically limited by the fuel you can use, or want to use.