Pump shaft
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Pump shaft

  1. #1
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    Default Pump shaft

    Anyone know the weight of both titanium and stainless pump shafts?

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  3. #2
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    Stainless shafts are 10 lbs.. don't know about tianium though.. Jim

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    Call Greg at gs marine he has one setting on his desk. Not sure how much it weighs but its lite.....

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    Default Ti

    Quote Originally Posted by bob fry View Post
    Call Greg at gs marine he has one setting on his desk. Not sure how much it weighs but its lite.....
    No thanks. Ti seems a bit scary to put in that type of scenario........Just wondering about the weight.
    -L

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    made a very limited batch of these years ago for a fuel boat, if i remember the titanium weighed about 6-7 lbs so about 5 lbs lighter than a stainless shaft.

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    Default $

    What are the costs of both SS and Ti shafts? Thanks for the help.
    -L

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    [QUOTE=larrymiersch;1628980]What are the costs of both SS and Ti shafts? Thanks for the help.

    -L[/QUOTe
    checked with my metal man today , here we are about 5 times the cost of ss 17-4 for the ti per foot . in hind sight the expense and degree of difficulty of machining them i personally dont know if its worth it to save the 5-6 libs. .02

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    Senior Member jetboatperformance's Avatar
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    Larry This is one of my 17-4 shafts as promised Tom

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    Default Shaft

    Quote Originally Posted by larrymiersch View Post
    No thanks. Ti seems a bit scary to put in that type of scenario........Just wondering about the weight.
    -L
    Larry the shaft I have here weights 5 lbs. Without the slinger ring

  12. #10
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    Unlikely, 5-6 lbs alone, but if you do that to 5 things sure just costs money
    For a project with unlimited funds you could lose a lot of weight in a jetboat wing, pump shaft, bowl, ti bolts, everything gun drilled and lightened.

    Quote Originally Posted by johnray069 View Post
    Quote Originally Posted by larrymiersch View Post
    What are the costs of both SS and Ti shafts? Thanks for the help.

    -L
    checked with my metal man today , here we are about 5 times the cost of ss 17-4 for the ti per foot . in hind sight the expense and degree of difficulty of machining them i personally dont know if its worth it to save the 5-6 libs. .02
    Boat 405.

  13. #11
    Senior Member Boat 405's Avatar
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    One race we added 40 lbs to the boat trying to slow it down. Didn't help
    Boat 405.

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    Default From what I hear........

    Quote Originally Posted by widowmaker View Post
    Unlikely, 5-6 lbs alone, but if you do that to 5 things sure just costs money
    For a project with unlimited funds you could lose a lot of weight in a jetboat wing, pump shaft, bowl, ti bolts, everything gun drilled and lightened.
    It's very possible that you can take 5-6 lbs out of one part. In fact, I know my dad has taken over 4 lbs out of his pop-off. I can understand your comment of "unlimited funds" because I compete against a few of those teams myself. However, of all the parts that you mentioned, I have heard that MOST of those parts that are being manufactured are affordable to MOST. Trust me, I know that going fast costs money. Hope this helps.
    -L

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    Quote Originally Posted by larrymiersch View Post
    It's very possible that you can take 5-6 lbs out of one part. In fact, I know my dad has taken over 4 lbs out of his pop-off. I can understand your comment of "unlimited funds" because I compete against a few of those teams myself. However, of all the parts that you mentioned, I have heard that MOST of those parts that are being manufactured are affordable to MOST. Trust me, I know that going fast costs money. Hope this helps.
    -L
    Sorry poorly worded. Yes it is very possible to take 5-6 lbs out of this part and many other parts. Just how much will it take to make a difference in boat handling in just one part. I like that the possibility is there and the availability is there if one so choses.
    Boat 405.

  16. #14
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    Default Cool

    Quote Originally Posted by greg shoemaker View Post
    Larry the shaft I have here weights 5 lbs. Without the slinger ring
    Thanks!
    -L

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