Magnum manifolds and power steering

Forced Induction Mopar

  1. AR_Tech

    AR_Tech Well-Known Member

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    Thinking about trying the borgeson box and magnum manifolds for a turbo build. I havent found anyone that can tell me if the manifold will clear the steering box. I have found people saying it wont work with the power steering pump. That isn't exactly true. If you get the power steering pump and bracket from a v8 magnum jeep and the passenger side jeep exhaust manifold.... It will clear. Obviously you need magnum heads and running magnum accessories. The passenger manifold off the Durango will hit the pump 20181017_223541.jpg 20181017_223544.jpg 20181017_224821.jpg 20181017_224830.jpg 20181017_224910.jpg 20181017_224936.jpg 20181017_225159.jpg 20181017_225205.jpg resevoir. You could always go with a type ii saginaw pump with an external reservoir. Anyway, thinking about giving it a try and if it doesnt work buying some Hedman Tight Tubes and do something similar to turbo66valiant and their 318 build.
     
  2. pishta

    pishta I know I'm right....

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    following, got the same manis and the same idea 'cept no P/S. I think youll be way ahead with the magnums than the tight tubes. More heat to the turbo-more efficient, less radiant heat in the engine bay.
     
  3. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    Well....it looks like you've stumbled upon an interesting idea!!!!! When everyone says that the magnum manifold won't work with power steering the statement was always made with the understanding that the motor was a pre-magnum engine in a early A or in an A body. I also tried the magnum on the engine (backwards), it wouldn't fit with the factory accessories. Now the only challenge will be the exhaust routing. I'm pretty sure it will work and if it does then you've helped FABO folks tremendously. I hope this thread doesn't get lost if you can get the exhaust pipes to clear on the driver's side. Magnum manifolds are pretty cheap right now because FABO can only use them on the passenger's side so there is low demand, if they can be used on both sides the prices might change?? Keep us updated as the build continues and be sure to include all the details with as many pics as possible.


    GREAT JOB!!!!

    Treblig
     
  4. YY1

    YY1 Well-Known Member

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    Interesting.

    What does the driver side jeep manifold look like?
     
  5. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    The driver's side magnum manifold is designed for a Jeep motor. The Jeep motor has the starter on the Passenger's side. Since the Jeep motor has no starter on the driver's side the Jeep driver's manifold "turns in" towards the motor and runs right into the Mopar starter. I know because I tried one on my car, with the starter on the driver's side there's no way to get the Jeep driver's manifold to fit a Mopar motor unless you completely remove the starter.
    Now if you turn it "backwards" (on the driver's side) and use the magnum accessories it might be a different story!! Treblig
    s-l500.jpg
    s-l1600.jpg
     
    • Thanks! Thanks! x 1
    • YY1

      YY1 Well-Known Member

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      That's too bad.

      The design of the front tube is totally different and would clear a PS pump.

      Are all jeep engines this way between Wranglers and other models?
       
    • Treblig

      Treblig FABO Gold Member FABO Gold Member

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      When I was selling ported magnum manifolds I only found the 53009376 (pic in first post) manifold on '96-'98 318 and 360 Jeeps Grand Cherokees. I haven't found that particular manifold on any other vehicle although there might be some other use on another year or engine. They make different styles (shapes) of magnum manifolds for other vehicles like the Dodge van (last pic in first post) that have the large ports but they fit differently. The '92/'93 magnum vehicles also had large ports but they are harder to find. Treblig
       
    • AR_Tech

      AR_Tech Well-Known Member

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      Will be a few weeks, but I will update if it works or not.
       
    • AR_Tech

      AR_Tech Well-Known Member

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      Well the bottom of the exhaust manifold (between cylinders 5 & 7) hits the power steering box... Going with some block huggers...
       
    • 64 Sportfury

      64 Sportfury FABO Gold Member FABO Gold Member

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      There are photos on the Moparts forum posted by a member show a design that works with power steering in the a body. I do not know which manifolds are in use but someone may be able to id them. The post is "who wants buy a turbo kit" post #2411643 page 16.
       
    • AR_Tech

      AR_Tech Well-Known Member

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      Looks like they made an adapter to be able to flip the exhaust manifold upside down. Not sure how the spark plug wires are going to like being that close. IMG_20171130_210338455_2.jpg
       
    • YY1

      YY1 Well-Known Member

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      can you put them on the bottom?
       
    • AR_Tech

      AR_Tech Well-Known Member

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      I don't know. I just added the image from the moparts thread.
       
    • Treblig

      Treblig FABO Gold Member FABO Gold Member

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      If you're asking if you can use those magnum manifolds on the driver's side with the exhaust port pointed down to the rear the answer is "no" on a Mopar engine and yes on a Jeep engine. The reason is that Jeeps have the starter on the passenger's side which leaves a space for the driver's manifold to occupy. The Mopar engine has the starter on the driver's side which interferes with the Jeep magnum manifold. I tried for 3 days to get one to fit on a 69 Barracuda (318). Once I got the engine high enough to get the manifold all the way into the engine bay the manifold was making hard contact on top of the starter with no way to get it to bolt up. I found that if you want good flow you have to use the 70's 340 driver's manifold and a 96/97/98 Jeep Grand Cherokee passenger's manifold (30-50 bucks) on the passenger's side. Now you could also try to install a Jeep magnum passenger's manifold on the driver's side with the exhaust port pointed down towards the front of the engine but you'd have a heck of time routing the exhaust past the steering box and cross member. You have to remember that the head exhaust ports are not symmetrical "top to bottom" so I have no idea good a seal you get and how much flow you get when you mount the manifold upside down.
      As you can see with these 318 (blue) and 340/360 gaskets, if you turn the manifold upside down the exhaust port shape won't match the head port shape:
      DSC01769.JPG DSC01770.JPG

      Treblig
       
    • YY1

      YY1 Well-Known Member

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      I was asking if those spark plug wires could be routed via the bottom.
       
    • subcom

      subcom Well-Known Member

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      You might try the shorty Dakota pass header on the driver side. I used it on my turbo build (but with manual steering) and it gave me about an 1" more clearance between the steering shaft on #5 and #7.

      I like that Jeep driver's side manifold for the pass side. Looks like it might work better than the Magnum manifold that kicks out toward the frame and makes for a hard turn on hotside fabrication.
       
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