Blower drive question
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Blower drive question

  1. #1
    Senior Member Reservoir Dog's Avatar
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    Default Blower drive question

    As soon as I get biesemeyer back I'm going to start rigging it, I have a blown 522 ci chevy I was thinking of put in it. My question is; driving the prop off the snout, could or would it be possible to drive the blower off the flywheel end of the motor? My hull is along deck and was look for more leg room/ get my big ass further away from the dash. Thanks Trevor

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    Default Rear Blower Drive

    I believe that Mooneyham makes a rear drive blower setup. I think that it is designed for jet boats to give more room in the boat.

    Can't see any reason that it would not work in a V-drive. Should give you about 4" to 6" more room.

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    Senior Member steveo143's Avatar
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    The guys at Islander Marine are making a system that drives the blower off the flywheel.
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    Not to tough of a deal if you know your way around a blower,doing the same to mine! fip flop the drive and lag rotors ect..

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    gn7
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    Quote Originally Posted by Checkmate21 View Post
    I believe that Mooneyham makes a rear drive blower setup. I think that it is designed for jet boats to give more room in the boat.

    Can't see any reason that it would not work in a V-drive. Should give you about 4" to 6" more room.
    Quote Originally Posted by steveo143 View Post
    The guys at Islander Marine are making a system that drives the blower off the flywheel.
    Islander Marine and Mooneyham are owned by the same guy.
    LINK: flywheel driven roots



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    Senior Member Reservoir Dog's Avatar
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    so do the rotors have to be changed, and can you still get away with an ofset mag in the standard chevy location.

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    Senior Member BAHNER79AUSTRALIA's Avatar
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    Stumbled across this on Youtube not long ago....

    If its too loud.... Your too old....

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    Quote Originally Posted by BAHNER79AUSTRALIA View Post
    Stumbled across this on Youtube not long ago....

    Hey Lee!
    Speakin of blower drives, have you gotten going on your engine yet?
    Boat's really lookingt good!
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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    gn7
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    Quote Originally Posted by Reservoir Dog View Post
    so do the rotors have to be changed, and can you still get away with an ofset mag in the standard chevy location.
    It uses the same rotors, but they are flipped end for end to get the rotor drive ends to the back, and flopper side for side due to rotation. You can't simply rotate the blower due to the staggered bolt manifold pattern.
    If you look at the pics in the link you will see the blower is drive off the left side of the blower (looking at the pulley end) compared to the right side of the blower.
    The blower sits in exactly the same postion as before, but the snout now sits over the dizzy. If you call Rick at Islander Marine he can tell you which sizes will clear what dizzies. He has done this more than once. This another of Ricks conversions. Its a 6-71 and you can see the dizzy clears easily. I would think a 8 would clear as well.

    The motor in the U TUBE link is one of Rick's. It is the motor at the bottom of the link I posted.
    Click image for larger version. 

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    Last edited by gn7; 04-03-2012 at 09:51 PM.

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    Senior Member BAHNER79AUSTRALIA's Avatar
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    Quote Originally Posted by steelcomp View Post
    Lee!
    Speakin of blower drives, have you gotten going on your engine yet?
    Boat's really lookingt good!
    Haven't even got your last shipment yet! No heads + No cam = No power! Haha.

    Haven't started the short yet either... Don't want to jump the gun as I need to get the hull finished!

    Will actually be coming over to the USA later this year! I have to meet some of you fellas!!

    Might swing by Superchargers USA and pick up a 8/71 blower kit while I'm over there.
    Last edited by BAHNER79AUSTRALIA; 04-03-2012 at 11:54 PM.
    If its too loud.... Your too old....

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    Senior Member Reservoir Dog's Avatar
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    thanks everyone. looking at it from the rear view,it looks like my offset msd pro mag 20 might clear. i have a mert littlefield mag case 14-71 sitting on the shelf that needs rebuilt. seeing how i have it apart i might set it to drive off the flywheel, and take the 8-71 kuhl off. i guess ill have to get it redynode. trevor
    Last edited by Reservoir Dog; 04-04-2012 at 12:01 PM.

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    Hey Guys... Not sure if this helps, but here is a picture of my setup that you guys are referring to. The setup will work for a v-drive application as well and will actually be a little easier given the fact that the drive line will not have to go through the bottom blower pulley.

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    Here is a pic...
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    Senior Member Reservoir Dog's Avatar
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    thanks red, what did you do for the distributor.

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