15 or 30lbs?
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15 or 30lbs?

  1. #1

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    Default 15 or 30lbs?

    Hi Guys

    I found performance boats mag in with my shipment from CPPerformance and so here I am. :-)

    So I wanna take off my 30lb flywheels on my bbc's and fit the 15lb ones.

    Starters are on there way out any way so I can overcome that issue and justify the cost too!

    Any big reasons why I shouldnt do this?

    Steve

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  3. #2
    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Why not just go with flexplates, or are you still double-clutching it?

    No reason not to change it other than possible driveline differences you may get into.

    I can't think of 1 really good reason to run a flywheel unless you actually DO install a clutch assy in the boat, and why you would do THAT is beyond me.
    "As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron."
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  4. #3
    I'm famous ! Lucky's Avatar
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    I run a flywhel and torque coupler

    My thoughts on the heavier flywheel in pleasure boat ! when you launch off the rollers you will not build rpm as quick and when you re enter you still have centrifucal force on your side . I believe this combo will help longivity of parts along with harmonics ! JUST MY THOUGHTS - and as you may or maynot have noticed I am nobody
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  6. #4
    Senior Member Hallett's Avatar
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    Some people say that a flywheels help to absorb harmonics.

  7. #5
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    Not to mention a flexplate was designed to be bolted to a torque converter to stiffen it during cranking. Some people never have a prob. some get the horrible grind!

  8. #6
    cfm
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    I think a good question is "What appilcation - jet, v drive, I/O and what engine size are we talking about ?"

    If I/O, what kind of drive ?

  9. #7
    northern member Canuc's Avatar
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    Exclamation don't do it

    agree with lucky and hallett I run a big heavy flywheel and the large ATI dampner , don't think it matters what drive your runnin , boat engines are under heavy load and when held at a constant rpm or are unloaded they will develop damaging haromics if you don,t run the heavy stuff . your starter will last better too, especially with a big hi-compression engine .

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