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Intake plenums.....

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Old Jan 19, 2015 | 02:05 PM
  #16  
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From: Fort Polk Louisiana
Originally Posted by fordman67
Have you verified in fact that you have 8 or 10s?
I would check before you order the wrong ones.
Well I'm on the other side of the world right now, I'm going to go ahead guess the 94.5 was an 8bolt. Since it was the first to come out, I doubt it would have 10bolt plenums. I'm pretty sure that 10 bolt plenum didn't come out until 96/97 and on.
 
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Old Jan 19, 2015 | 10:36 PM
  #17  
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So I think I have some aluminum kicking around has anyone made their own plenums that don't distort and blow the silicon seal? Or can I just flatten the original and hope for the best?
 
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Old Jan 20, 2015 | 12:02 AM
  #18  
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Originally Posted by nateairman
So I think I have some aluminum kicking around has anyone made their own plenums that don't distort and blow the silicon seal? Or can I just flatten the original and hope for the best?
I built my own with 1/4" steel and some thin wall 3" O.D. pipe.

 
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Old Jan 20, 2015 | 04:08 AM
  #19  
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From: Fort Polk Louisiana
Originally Posted by ReBilld
I built my own with 1/4" steel and some thin wall 3" O.D. pipe.
Bill, I really am amazed at your skills. I wish I had a workshop and the time to fabricate like you do!

Not trying to go off topic, but for your UP's, what is the max diameter you can go with them before running into space issues?

They look good! Are you going to ceramic paint them to keep the temps down in them?
 
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Old Jan 20, 2015 | 08:30 AM
  #20  
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Bill,
Is that plate stock with pipe welded to it? Kind of hard to tell on the phone....
 
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Old Jan 20, 2015 | 11:25 AM
  #21  
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Originally Posted by nateairman
Bill, Is that plate stock with pipe welded to it? Kind of hard to tell on the phone....
it's 1/4" plate with a thin wall 3" od pipe welded to it
 
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Old Jan 20, 2015 | 02:25 PM
  #22  
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Hmmm. Flat then. No problem even easier to make. I haven't had the plenums off so I don't know what it looks like under there. There must not be much of a flow restriction otherwise it would have a bit of flare from the pipe to the plate... Hard to describe.

I can't believe how many nice OBS trucks are on the Sunshine Coast! Even saw a 70's single cab powerstroke! Awesome. I should move here....
 
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Old Jan 20, 2015 | 02:51 PM
  #23  
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Yea it's pretty nice over there. Is that where you are now?
 
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Old Jan 20, 2015 | 08:08 PM
  #24  
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Yeah. A little work here over the next couple months. Here a few days then Whistler and back to the city for Monday. I'll have to get a new commuter soon!
 
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Old Jan 20, 2015 | 09:04 PM
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Originally Posted by nateairman
Yeah. A little work here over the next couple months. Here a few days then Whistler and back to the city for Monday. I'll have to get a new commuter soon!
good times. Are you doing the plenum there. I have a set of 2" ones here
 
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Old Jan 20, 2015 | 11:08 PM
  #26  
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Nope the truck is at home. I haven't driven it too much after the clutch slipped on the haul back.

The plenum let go after delivering a small welding job in Whistler. I thought it was a pipe and redid everything but it was still leaking on a trip to the city for supplies.

It's a bummer but I can fix it. Just want to make a plenum with the scrap I have laying around. Seems like the way to fix it.
 
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Old Jan 25, 2015 | 09:41 PM
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Well I made a boost leak tester today with a tire filler thing and a abs pipe cap. It works really good and I can turn the air on and off by squeezing the handle.

My leaks are not as bad as I thought. One boot from the spyder to the plenum will not seal. It keeps sliding up and loosing clamping force. It seems there should be a roll bead on the plenum to keep the boots from moving. What is the best way to stop this?
 
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Old Jan 25, 2015 | 09:56 PM
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I think someone once said hairspray helped.
 
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