HX35
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Joined: Nov 2012
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I have my motor on a stand and tried the just swapping and flipping the manifolds. The oil cooler stopped me. Thinking of flipping the passenger side and have turbo monted on it and may leave the drivers side alone? But that would be a long routing job
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Senior User
Joined: Feb 2012
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Does the driver side manifold bolt on upside down on the passenger side ?
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Senior User
Joined: Feb 2012
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I've toyed with the idea of using powerstroke manifolds , but I don't think they will fit due to differences in port sizes .
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What I have figured is I can make my own headers for $300. Which doesn't sound like much but I am doing a lot so I am still looking to save some money. I think I can have the passenger side flipped around and have turbo on it. Leave the drivers side the same but cut and turn the end up the pipe will go over the top of the motor and up to the turbo. This may not work but that is what I was thinking.
Hotshot
Joined: Oct 2002
Posts: 18,488
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From: The Big, Oregon
The manifolds are cast iron, so not an easy thing to weld. It'll take some special techniques to weld properly and I really wouldn't want to do that on a manifold that will be under pressure like that. You can buy flanges (or cut your own using the gaskets as patterns) then build a manifold from weldable steel pipe parts. This way you can build a pulse type manifold that flows great and has the dimensions you need for the project.
Senior User
Joined: Feb 2012
Posts: 445
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From: western Oregon
the port surface is 45* to the ground, when you put a drivers side manifold on the passenger side it points to the wheel well. when I put a passenger side manifold on the drivers side it points back and out away from the rear corner of the head. Just like I need to get my turbo in the right spot. (I have a lot of room to work with in the rear engine MotorHome. Look on Ebay under 7.3 exhaust manifolds. I have found two differant drivers side manifolds. One for the truck and one for the van application. Also the port dimensions on PS are differant size so they wont fit. Racin has flanges for making custom pipes if you are up to it, NMB2 made some sweet pipes for his rig I'm sure you could fine the pics if you looked for them.
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Well then I guess I'll just have to use the manifolds as are stock .
Then I'll have to use the stock y pipe crossover and modify the y pipe to go up .
I want to have a smooth transition if possible , so I'll have to make a "T" to connect the crossover to the passenger side manifold then do a single pipe up to the turbo . Any advantage to running a separate pipe from each manifold to the turbo - like the hypermax setup vs the ats style ?
Then I'll have to use the stock y pipe crossover and modify the y pipe to go up .
I want to have a smooth transition if possible , so I'll have to make a "T" to connect the crossover to the passenger side manifold then do a single pipe up to the turbo . Any advantage to running a separate pipe from each manifold to the turbo - like the hypermax setup vs the ats style ?
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Joined: Aug 2012
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From: New Albany, In
I'm wondering if there will be a problem if the pulses meet each other at the turbo, or can someone make the calculations so the pulses will alternate when they hit the turbo.
This all depends on the length of the pipe to the turbo.
This all depends on the length of the pipe to the turbo.