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Did a mock up of my Procharger using a spare 454 motor tonight. Glad I did because I found out some hoops to jump through. Intake side is barely a thumb's width from the number 1 header primary with the over the transom headers. Should prove to be interesting coming up with an intake tube of sorts.
My Holley heads have 7/16 coarse holes on one end of the head and 3/8 on the other. Mounting system is set up for 7/16 bolts but on that side of the engine the small holes are facing forward. Picked up some stainless 3/8 bolts so I could mount it but not sure I trust it.
Procharger supplies 3/8 fine bolts to mount the lower pulley to the crank dampener but of course I needed coarse. Trip number 2 to the local hardware supply.
And finally, the blower housing itself doesn't clear my valve cover. I scoped it out and I can modify the valve cover and have it repolished but it's just a bummer to have to do.
None of it is a huge ordeal but I was hoping that my only problem would be the header clearance. I wonder if I could remake the blower mounts so they make the unit ride farther out and down from where it sits now. Grabbed some pics but I have to wait until tomorrow to get them downloaded at work. Will post them then.
:mad: :cry: <<<<<<<< My emotional state.
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Might catch some flac for this, but this is what I would do if it was made legal for a K circle boat. Pick the appropriate blower, mount it on the back and drive it off the crank/flywheel side 1 to 1. DEFINATELY lighter and would lower the center of gravity in the boat (better for turning) and would likely make more power. I know it's not typical, but it would work! :)
Hey that's messing with nostalgia and we can't have any of that.
Next thing someone will want to run EFI and that will be the point of no return.
:D
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Running a Procharger at 1:1 would decrease th boost significantly for mine has a 5.5 crank pulley and a 4.0 Procharger pulley feeding a 540 bbc, made gobs of power and torque from 3000 on up, peak power at 5800 and belt slippage became a problem. Motor made 1000 hp by 4700 with 1125 at 5800, torque was a 1000 ft/lbs at 4000 and peaked at 4800 at 1120. The hp and tq curves were really flat throughout, not peaky, which is good for a boat.
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Big H,
I have been following this post on the procharger set up for sometime now. I am redoing a Nordic Jet. I am in the process of building a BBC for it now.
I want to go procharged as well. I want to fabricate my own brackets as well cause of the exact same header problem you are having, but I do not want to notch out my valve covers though. . Do you have any pics of your mock up. I am converting a tunnel ram to EFI right now and
will also be making and air/water intercooler for it as well. I would like to see a build up of the fabrication of the brackets you are doing. Thanks.
T.J.
you can see some of my work here.
www.tjsperformance.com
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I didn't like the stock mounting setup for the M3 system I bought (second hand), so I made my own brackets to get the blower out further where I could run a good air filter. Also made a bracket for the other side that would mount the intercooler, steering pump, reservoir, and fuel filter. There are a couple of pics of what I have done so far in this thead:
http://www.***boat.net/forums/showthread.php?t=99656
-Brian
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Nice machine work! From what I hear so far the ,the prochargers kit is far from bolt on ready.