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OBA Bracket

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Old Mar 11, 2013 | 11:27 AM
  #1  
tobyw's Avatar
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From: WA
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Default OBA Bracket

Nothing too fancy, just a shelf bracket to drop a second Sanden compressor on the driver-side for OBA:

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Belt alignment looks off in that picture, not sure why? Cell phone camera... Regardless, now I just need to get my air fittings and I'll be good to go!
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Old Mar 11, 2013 | 11:36 AM
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Great idea. I really like that. I've thought about putting my second battery where the air box was but this makes me want to do what you've done haha
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Old Mar 14, 2013 | 03:51 PM
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Looks good!
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Old Mar 19, 2013 | 04:33 PM
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From a structural stand point I would recommend running a brace back (toward the rear of the vehicle) somewhere on the block so that you have a more solid mount. Right now you have two pointing points that are more or less vertical (I know the lower is slightly farther back) and don't offer much support for/aft. The best mounting will have a triangulated attachment. Looks good other than that, I like the idea. I would like to do something similar with a York compressor I have in the garage but have to figure out what to do with the air filter.
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Old Mar 19, 2013 | 05:26 PM
  #5  
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Originally Posted by Northwoods Snowman
From a structural stand point I would recommend running a brace back (toward the rear of the vehicle) somewhere on the block so that you have a more solid mount. Right now you have two pointing points that are more or less vertical (I know the lower is slightly farther back) and don't offer much support for/aft. The best mounting will have a triangulated attachment.
Although I can understand exactly what you're saying, anything more than what's there would be pure overkill in this installation... Right now there is roughly 6" of horizontal (for/aft) seperation between the mounting centerlines, and other than inertia from the mass of the compressor itself, there is no significant force acting for/aft. The belt tension created moment is easily controlled with the 6" seperation.

Originally Posted by Northwoods Snowman
I would like to do something similar with a York compressor I have in the garage but have to figure out what to do with the air filter.
I ended up making a DIY cowl intake with some 3" exhaust tubing, 3" flexible tubing, and a K&N RU-5111 filter...

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Old Mar 19, 2013 | 06:11 PM
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Originally Posted by tobyw
Although I can understand exactly what you're saying, anything more than what's there would be pure overkill in this installation... Right now there is roughly 6" of horizontal (for/aft) seperation between the mounting centerlines, and other than inertia from the mass of the compressor itself, there is no significant force acting for/aft. The belt tension created moment is easily controlled with the 6" seperation.
Well you'll just have to see how it holds up over time. I'm thinking more of a fatigue stand point. The center line to keep in mind though is the one that runs between the mounting points. If the force from the belt tension acting on the pulley is not in line with that then it will load the bracket in one direction or the other away from the "center line" if that makes sense. Something that might help additionally without adding another part to the bracket is to put two bolts through to the power steering bracket instead of just the one. While small, that would add rigidity to the whole mount.

I've seen people run their intakes through the cowl, but I personally think that's a terrible idea; easier ingress of water and the intake becomes blocked when there's snow on the vehicle.
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Old Mar 19, 2013 | 10:03 PM
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Originally Posted by Northwoods Snowman
Something that might help additionally without adding another part to the bracket is to put two bolts through to the power steering bracket instead of just the one. While small, that would add rigidity to the whole mount.
Already got that covered I didn't originally post a full array of pics, just some quick shots...

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Originally Posted by Northwoods Snowman
...the intake becomes blocked when there's snow on the vehicle.
That is probably a great point for your neck of the woods... Not such an issue over here in the PNW, especially since mine lives in the shop unless it's on the trail, so excessive snow buildup on the cowl isn't a problem.
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Old Mar 20, 2013 | 02:41 PM
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