So how many people know much about blowers?
I've got a 671 on the tunnel ram I built in the other car. And I'm putting twin 453 blowers on the Olds in this car.
Little tech info if you dont know. These blowers are all refered to based on the Diesel engine size that they came on. 671 breaks down to an Inline 6 cylinder engine, that is 71 cubic inch displacement per cylinder.
Likewise a 453, would be an inline 4 cylinder engine, 53 cubic inches per cylinder.
Now when you see a 6v71 listed, Its a V6 diesel engine with 71 cubic inches per cylinder.
The inline versions are desirable as they mount with bolts perpendicular to the mounting surface where as a V series blower mounts with bolts 45 degrees to the mating surface and the forces are pulling diagonally, and therefor more difficult to mount
71 series engines all have roller bearings supporting the rotors and a self contained oiling system, where the 53 seriese blowes have precision holes in the end plates supporting the rotors, and use a pressurized oiling sytem from the engine.
71 series blowers have helical rotors and are highly efficient and are similar to the blowers everyone pictures on hotrods, where as the 53 series are straight rotors, less efficient, and much noisier. With all this information that is why 71 series blowers are much more sought after, and more expensive, and 53s are very cheap generally, since there is virtually no aftermarket support. In my case,I want the look, and the sound, and Im not building a race car., so effiency is low on my list, these will scream when its running. Random fact, the 144 Blowers that you can buy currently from the aftermarket, are based on the 453 blower, but with upgrades in the fashion of the 71s
All of that being said. I'm happy with my choice here, but it presents some issues. Without an aftermarket support, I need to build my own covers, the stamped tin are just not doing it for me, and I need to build snouts(drives)
Its pretty straight forward, bearings in a cylindrically housing, with a splined shaft on the inside, and a flange on the outside to mount a pulley.
I dont want to run the same 3: wide cogged belt I am on the other car, and serpentine doesnt have the look I want, so i'm tossing back and forth between triple V belts, which I think I would have to mount each blower seperatly since V belts dont like to bend backwards, and chain drive that would allow me to get more than 180 degrees of contact on the blower sprockets, and still almost 180 on the crank end.
Some pictures just because, but if anyone has any experience with drives, either mass produced or preferably custom made, I'd be interested to hear. I'll document the process for Youtube and such, because If I couldnt find what I need, I'd assume that other people cant as well.