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Thread: replacing one piston

  1. #1
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    replacing one piston

    Im building a budget 2.2, Donovan style.....cheap enough so that I dont care if it blows up. The only coin I want to lay out is for rings and gaskets. Everything else I want to put together from parts I have laying around. Ive got 3 sealed power T2 pistons.....one Mahle. Obviously not ideal.....but will this cause a problem?

  2. #2
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: replacing one piston

    just buy another sealed power to round out the set you cheap bastard!

    actually didnt that silver bullet omni have like 3 different sized pistons in it?

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  3. #3
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: replacing one piston

    Use the triple beam balence scale that you use to weigh out your uh, medications and compare the pistons. If they are pretty close, I wouldn't hesitate to run a mixed set. If that one piston is heavier, I would also be for grinding some material from a non critical area.

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  4. #4
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    Re: replacing one piston

    Quote Originally Posted by 2.216VTurbo View Post
    Use the triple beam balence scale that you use to weigh out your uh, medications and compare the pistons. If they are pretty close, I wouldn't hesitate to run a mixed set. If that one piston is heavier, I would also be for grinding some material from a non critical area.
    Thats what I was thinking.....as long as the weight is very close, shouldnt be any reason to not run em together.

  5. #5
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    Re: replacing one piston

    Quote Originally Posted by Aries_Turbo View Post
    just buy another sealed power to round out the set you cheap bastard!

    actually didnt that silver bullet omni have like 3 different sized pistons in it?

    Brian

    Nah the omni was just a lightweight rod motor swapped in from the CSX.

    YOU cant call ME a cheap bastard, either. Cheap bastard.

  6. #6
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: replacing one piston

    not your omni, the Silver Bullet Omni Grassroots Motorsports car. it had all kinds of different sized pistons in it lol.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #7
    turbo addict slasky's Avatar
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    Re: replacing one piston

    I may have a sealed power piston but I think it is oversized. Are yours stock?
    SDAC member "It's not the ride, it's the rider."

  8. #8
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    Re: replacing one piston

    Quote Originally Posted by slasky View Post
    I may have a sealed power piston but I think it is oversized. Are yours stock?
    Yea....stock bore....im just hitting the cylinders with a hone.

  9. #9
    Supporting Member Turbo Mopar Contributor mopar-tech's Avatar
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    Re: replacing one piston

    Quote Originally Posted by 1FastCSX289 View Post
    Obviously not ideal.....but will this cause a problem?
    Yes.

    Chances are the cc will not be the same, along with the weight.

  10. #10
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    Re: replacing one piston

    Quote Originally Posted by mopar-tech View Post
    Yes.

    Chances are the cc will not be the same, along with the weight.
    Crap...didnt think about the cc's. I guess im gonna have to break down and buy a sealed power piston. The kicker is that I traded someone on the forum three 2.5 pistons for three 2.2 pistons to go with the one good piston I have, assuming they were factory pistons......DOH!!! Would have been nice if he specified.

  11. #11
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: replacing one piston

    Yeah, and how did a cheaply built pieced together motor come to be known as Donovan style anyway

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  12. #12
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    Re: replacing one piston

    Back in the day GM used to sell "Target Master Motors", these were engines that were factory rejects. These engines were patched up with what ever it took to make them run. Stuff like 1 oversized piston, or 1 undersized journal etc. If you don't care if it blows up go for it.

  13. #13
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    Re: replacing one piston

    Quote Originally Posted by butchsuppe View Post
    Back in the day GM used to sell "Target Master Motors", these were engines that were factory rejects. These engines were patched up with what ever it took to make them run. Stuff like 1 oversized piston, or 1 undersized journal etc. If you don't care if it blows up go for it.
    Its not that I dont care if it blows up.......I mean, id like to get some time out of it. But I wont cry when it blows like I do when my CSX motors craps.

  14. #14
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    Re: replacing one piston

    Quote Originally Posted by 2.216VTurbo View Post
    Yeah, and how did a cheaply built pieced together motor come to be known as Donovan style anyway
    Well, he is one of the original turbo-chrysler gurus......and most of us are all cheap skate hotrodders.....soo....... He the guy that took stock engines out of boneyard cars, cranked up the boost, played with zener diodes and 25th injectors, etc. Probably more out need than out of cheap-ness, but im sure there was some of that or he would have been working on corvettes.

  15. #15
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    Re: replacing one piston

    if this is for the charger, I found a box of T2 rods that GazerB gave me years ago... been in the box (used) ever since.

  16. #16
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
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    Re: replacing one piston

    You are cheap, I had 3 factory Mahles for dirt cheap,

    I see 2 issues, weight and cc's, so either throw it together or buy mine,
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    Supporting Member Turbo Mopar Contributor mopar-tech's Avatar
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    Re: replacing one piston

    Quote Originally Posted by 1FastCSX289 View Post
    Well, he is one of the original turbo-chrysler gurus......and most of us are all cheap skate hotrodders.....soo....... He the guy that took stock engines out of boneyard cars, cranked up the boost, played with zener diodes and 25th injectors, etc. Probably more out need than out of cheap-ness, but im sure there was some of that or he would have been working on corvettes.
    <chuckle>

    Gary Donovan

  18. #18
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    Re: replacing one piston

    ill bring my pistons on friday night and well work something out....if they work then we can figure out something.

  19. #19
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    Re: replacing one piston

    Quote Originally Posted by mark View Post
    if this is for the charger, I found a box of T2 rods that GazerB gave me years ago... been in the box (used) ever since.
    Im good on rods.

    Quote Originally Posted by turbovanman View Post
    You are cheap, I had 3 factory Mahles for dirt cheap,

    I see 2 issues, weight and cc's, so either throw it together or buy mine,
    YES! I am cheap. Really, im cheap out of necessity. If I dont play cheap these days, I dont play at all. I may still hit you up for one if Jeremy's look good.....I may still need another.......or.....I might just buy one more sealed power piston if its CHEAPER

    Quote Originally Posted by mopar-tech View Post
    <chuckle>


    Gary Donovan
    I hope you dont take offense! I view it as a good thing.....resourcefulness is good! I dont know you....but this is just what I gather from reading about the good ol' days.

    Quote Originally Posted by jeremyshelby View Post
    ill bring my pistons on friday night and well work something out....if they work then we can figure out something.
    Werd.

  20. #20
    Supporting Member Turbo Mopar Contributor mopar-tech's Avatar
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    Re: replacing one piston

    Quote Originally Posted by 1FastCSX289 View Post
    I hope you dont take offense! I view it as a good thing.....resourcefulness is good! I dont know you....but this is just what I gather from reading about the good ol' days.
    None taken!

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