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Thread: A20 turbo manifold?

  1. #51
    3Geez Veteran lostforawhile's Avatar
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    Re: A20 turbo manifold?

    Quote Originally Posted by Johnshatch View Post
    I was thinking of making my own by just cutting the stock flange off and welding it to an old b series i have
    why do that and possibly have future problems,when there is a really good manifold already available, even if you get it to weld, you have to contend with the expansion rates of two different materials welded together, and probably future cracks



  2. #52
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    Re: A20 turbo manifold?

    Quote Originally Posted by gfrg88 View Post
    Just have to get cast iron really hot, red hot, and keep it that way and welds are ok
    X2 (and dont cool it with air or water afterwards, let it cool on its own)

  3. #53

    Vanilla Sky's Avatar
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    Re: A20 turbo manifold?

    Mild steel and cast iron still have different thermal properties. After a bunch of heat cycling, it's going to crack.

  4. #54
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    Re: A20 turbo manifold?

    Quote Originally Posted by Vanilla Sky View Post
    Mild steel and cast iron still have different thermal properties. After a bunch of heat cycling, it's going to crack.
    well for some reason my two different metals welded together dont totally agree with you. My cast iron flange welded to mild steel have held up just fine for 3 years so far, and thats driving and beating on it everyday. Not to say it wont eventually crack, idunno, but any manifold could crack after time under certain circumstances. I think its more in the craftsman of the product, whether or not he knows what hes doing.

  5. #55
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    Re: A20 turbo manifold?

    lilhatchbesmokinU Don't sell your 3g because some dude said you should. That's stupid. Don't sell your car because your dad says its dumb. (unless he paid for it or in some way will be contributing financially to this) this is your car, your build, your ride. You have to drive it, you have to work on it and make the decision yourself. Giving up when things get tough wont get you anywhere. If you like the car and you want to make something of it then save your money and make it happen. I have a bone stock 3g. I want to make it fast, good looking and I don't care how much it costs, because I'll drive it till it quits, then I'll drop another motor in it. I love the car. It's great. You never come out on top. The only way you do is if you buy something brand new, and put a ton of money in it, then drive it for 30 ish years and enjoy the hell out of it, and hopefully it takes like the NSX or Skyline and is stupid valuable. You don't make a build based on your pocket. It's based on what you want. It's based on what you like. You will never come out on top monetarely. But it is fun as hell to pass a car 2, 3, 5 times the cost of your car. Build what you want not what your dad wants, or what someone else tells you. Take the advice and make your own build. I'd rather have a 3g over a civic because of originality. If you'd rather have a civic then get a civic. You'll never make it up modding cars. You mod cars because you love it, not to make a profit.

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