25 daytona exhaust question
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25 daytona exhaust question

  1. #1
    Senior Member dankdave79's Avatar
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    Default 25 daytona exhaust question

    Hey guys i have a 25' eliminator daytona 2000 year. It has a 540 in it. Right now the boat has" power flow" manifolds that are closed cooling sytem style.they are polished aluminum that i want to take off and sell. The exhaust exits above the water line right next to the drive not under the swim steps like later years. I want. To put some type of header on the boat cmi lighting ecrmt. Do you guys have any pics of headers installed on this set up?

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    Senior Member LESSON LEARNED's Avatar
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    Default




  4. #3
    Senior Member dankdave79's Avatar
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    Nice! Those are e tops right? A little hard to see on my cell phone.

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    Senior Member dankdave79's Avatar
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    How.do.you guys feel about lightning headers and does anyone have this boat with those headers?

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    Senior Member Trim it up's Avatar
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    I have a 25 daytona (hp500) myself and my mechanic has dyno'd the Imco power flows vs. the cmi's and the powerflows showed more horsepower. FYI

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    Senior Member dankdave79's Avatar
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    My power flows are for a closed cooling system which i don't have and there is a divider plate in my manifold one of them disintegrated in half. Do you guys take those out or run them becasuse they are removable. And every motor is diffrent and will respond diffrent to to different headers

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    Don Johnson Don Johnson's Avatar
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    are these powerflows or powerflow plus? If powerflow plus they work as good or better then most tubular headers. I run them on my boat and dynoed them. They made slighly less, 10HP, then big tube dyno headers and my motors made 1,170 HP. I would simply replace the divider.

  10. #8
    Senior Member dankdave79's Avatar
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    I belive they are just powerflows that's all they say on them. Whick i would prob gain hp by going to headers i think. I hate how they are for a closed cooling system its really not the right way and looks shitty. Ill take a pic when i get home tell me what they are. The are polished aluminum. And just say power flow on the sidey

  11. #9
    AKA Blownjet 468 Blowncat 509's Avatar
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    where is the pic's? I'd like to see these "closed cooling system" Imco
    Powerflows I have IMCO Powerflows on my boat, and they don't have
    jumper hoses from the manifold to the riser like every other set I have seen. kinda wonderin' why

  12. #10
    Don Johnson Don Johnson's Avatar
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    My Powerflow Plus's do have jumper hoses from the manifold to the elbow.

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    AKA Blownjet 468 Blowncat 509's Avatar
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    but do you know the reason for the jumpers, and why some have them,
    and others don't? I still don't know why mine don't have 'em!

  14. #12
    Senior Member Familycat's Avatar
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    Default This is our 25 Teague 800. Hope it helps

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    "Equity at its Best"

  15. #13
    Senior Member dankdave79's Avatar
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    That's a beautifully rigged boat

  16. #14
    Senior Member Familycat's Avatar
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    Quote Originally Posted by dankdave79 View Post
    That's a beautifully rigged boat
    If it is our boat you are referring to then thank you. Just need to keep up on the polishing.

    Rick
    "Equity at its Best"

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