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Is this the same?

Discussion in 'Forced Induction' started by 92CHB, Nov 9, 2004.

  1. 92CHB

    92CHB Senior Member

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    After meeting Ji he has come pretty close to conviencing me to go budget turbo on my d15b7 for 200whp since that would be my goal with a motor swap and some modifications. I read ji's article and he said "I've personally found that the IHI RHB5 VJ11 turbos are *PERFECT* for a streetable D series". Now is this turbo the same? Also for making the custom header i heard you can use a hf manifold and make an adapter play but what if i just bought the header that originally can with the turbo and weld that flanged onto the hf mainfold instead of fabricating one? I know i got tons of reading up to get too i just wanna start making my "shopping list" persay so once spring hits so i can start working on this set up. Thanks for any help.
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    not sure on the turbo... but the manifold-- you can't put a (say, a ford thunderbird, or whatever car its off of) manifold on your honda head. it won't bolt up.
    use the hf manifold, and weld on the flange.
     
  3. 92CHB

    92CHB Senior Member

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    no what i meant was just using the flange on the original turbo'd cars header and welding it to an hf manifold
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Sure, why not? It's a free flange.
     
  5. 92CHB

    92CHB Senior Member

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    now i think about it i hope the stock turbo's header is steel not cast iron...actually does anyone know of a company that make manifold's and/or the flanges?
     
  6. TommyTheCat

    TommyTheCat Gonzo Scientist

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    Yeah that looks like an RHB5 out of a mazda/probe. VJ-11 is the part no. , like the VF series in WRX/STi's .
     
  7. 92CHB

    92CHB Senior Member

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    So the Rhb5 turbo on a mazada/probe is the same as a wrx/sti turbo?
     
  8. Citizen_Insane

    Citizen_Insane Senior Member

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    I would go with the HF manifold over rewelding another car's manifold because that way it is GARENTEED to work.
     
  9. 92CHB

    92CHB Senior Member

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    okay...how should i go about getting one? junkyaard or order a new one?
     
  10. pissedoffsol

    pissedoffsol RETIRED

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    new? naw dude. you can get one for liek 40 bucks tops. try the classifieds
     
  11. Citizen_Insane

    Citizen_Insane Senior Member

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    or ebay.

    --btw mine went for $80 on ebay :ph34r:
     
  12. TommyTheCat

    TommyTheCat Gonzo Scientist

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    sti turbo =/= ford/mazda turbo

    yes they're both IHI, but they're different. And, of course, stock wrx's have td04/td05.
     
  13. 92CHB

    92CHB Senior Member

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    so which one do you think would be better for a d15?
     
  14. TommyTheCat

    TommyTheCat Gonzo Scientist

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    Go for the VJ, mazda/probe .
     
  15. 92CHB

    92CHB Senior Member

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    why?
     
  16. Citizen_Insane

    Citizen_Insane Senior Member

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    Because it'll spool faster and you cant take advanage of the increased power potential of the WRX turbo since your stock bottom end isn't that strong.
     
  17. jamesA

    jamesA Well known pissed off telephone guy VIP

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    when did probes come with a stock turbo? You sure you're not thinking about the 323 GTX and older Escort 1.6s?

    edit: ok i just looked, I guess late 80s probes did have the IHI on it as well. learn something new everyday. hrmm
     
  18. Loco Honkey

    Loco Honkey Banned

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    Welding cast metal is very difficult, and most likely, it WILL crack. If you're bent on using an HF manifold, get the STD manifold instead... same thing as the HF, but larger ports. Keep in mind, though- these manifolds are designed for <70 HP power levels, and will create some pretty high exhaust manifold pressures... Yes, they will work. As to how well they work is another story. Rather than welding, fab up an adapter that will bolt to the manifold and turbo.
     
  19. Seany-izzle

    Seany-izzle New Member

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    i have a hf manifold and adaptor plate for a t25, as well as some other things! lol. If you get the ihi, it has a t3 flange, so finding a manifold will be much easier. (than getting a non t3 flanged turbo and using a plate, like a t25)
     
  20. 92CHB

    92CHB Senior Member

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    What "other things" do you have? are they parts from ji's project? I am planning on building my own manifold, using a td04l from a wrx(in the process of purchasing) and a dsm BOV and IC(which hopefully i'll purchase in the next day or so).
     
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