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  1. #1
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Custom Turbo Flanges

    While I was designing my custom turbo flanges for my GPRXP conversion, my machinist had the idea he might do the same. He wanted to use a T25-T28 turbo, so I drew up a model for him and he milled one out for himself while he was doing my T3 flange. He also turned up the flange to come off the log manifold. Inside pipe diameter is 2.5 inches and outside dia is 3 inches. Inside pipe can be welded in whole and have waste gate plumbing incorporated if required. Outside water jacketing is then split and welded over the top and water fittings welded in as per requirement. These two pieces allow you to position your turbo anywhere you want off the the OEM manifold and provide a solid mount rather than the flex that you get using a modded factory J-pipe.

    Unfortunately his plans have changed and he won't be using them so if anybody is interested they are up for sale.

    He also made up a replacement bell end for the log manifold that also will not be needed. It does require the end of the original log manifold to be machined off, for this to fit.

    These pieces are a work of art and make mounting a turbo so easy.
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  2. #2
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Couple more pics

    These things look like they should going into a dairy factory or hospital or something!
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  3. #3
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Here is my setup as an example of what it could look like. My turbo has a bigger T3 inlet, but you get the idea. There is plenty of material to provide a surface to also attach bracing to if required.
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  4. #4
    JPR's Avatar
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    thats some nice work there you guys have turned out.. who made your intake mani ?
    pm me a price on the exhaust bell..

    cheers Jeff

  5. #5
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Here is a better pic of the manifold.

    Custom designed billet flange by Hickman Engineering and then fabbed up from there. Bit of a joint venture, but most of the welding work was done by Kevin at Ski-MD in Auckland , NZ. Anodised rather than polished for a slightly different look.
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  6. #6
    rxpdoo's Avatar
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    Quote Originally Posted by rxp244 View Post
    here is a better pic of the manifold.

    Custom designed billet flange by hickman engineering and then fabbed up from there. Bit of a joint venture, but most of the welding work was done by kevin at ski-md in auckland , nz. Anodised rather than polished for a slightly different look.
    those aussie boys do make some nice pieces!

  7. #7
    Duke's Avatar
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    Very nice looking work!

  8. #8
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Quote Originally Posted by rxpdoo View Post
    those aussie boys do make some nice pieces!

    I do agree, those aussie's do make nice pieces..... but Auckland is in New Zealand and we make even nicer pieces!

  9. #9
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    did you have any trouble installing the fuel injectors? i'm not sure if the design changed but if it's the same one i'm thinking of the injector ports were way too tight.

  10. #10
    RXP 260 X Short Course Veteran RXP244's Avatar
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    Quote Originally Posted by JFizzleJR View Post
    did you have any trouble installing the fuel injectors? i'm not sure if the design changed but if it's the same one i'm thinking of the injector ports were way too tight.
    When I got hold of my one, the first thing I noticed was that standard size injectors and after market thin body injectors were fine. But fat body injectors like the Riva 50's did not want to sit down in the hole deep enough. I had my machinist mill off the excess material at a perpendicular angle to the injector body across the length of the flange to give any body shape injector plenty of clearance. The injector port is snug but with a bit of lube on the o-ring the injector pushes in nice. Better snug than sloppy

    Any thing that is custom made, I still believe that it should be able to cater for all variants.

    I have advised my machinists that all flanges made from now on should be like this.
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