Is This Too Low???
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Is This Too Low???

  1. #1
    Super Moderator HammerDown's Avatar
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    Question Is This Too Low???

    Speedo PU 3" below tunnel > too low?
    I know it needs clean water but, how deep is too deep?

    <img src=http://www.performanceboats.com/gallery/data/500/medium/06-30-11_1234.jpg border=0 alt= />

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    B1 Racing cs19's Avatar
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    does not need to be that low, that is slowing you down quite a bit.

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    Senior Member fat rat's Avatar
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    Don't know the minimum setting, but mine is at 1" and 3/4". Seems to be some what accurate.
    In thrust..............we trust. Team FTL



    If you don't stand behind our troops, please feel free to stand in front of them.

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    Super Moderator HammerDown's Avatar
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    Quote Originally Posted by cs19 View Post
    does not need to be that low, that is slowing you down quite a bit.
    Seriously, are you pulling my chain here?
    That skinny, knifed edged pick-up is slowing down my boat???

    I'm I being 'punked' here?
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    Wet
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    Quote Originally Posted by HammerDown View Post
    Seriously, are you pulling my chain here?
    That skinny, knifed edged pick-up is slowing down my boat???

    I'm I being 'punked' here?
    Yes, by 1/10th second in the 1/4.

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    B1 Racing cs19's Avatar
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    Quote Originally Posted by Wet View Post
    Yes, by 1/10th second in the 1/4.
    Wet, you might be surprised to see how much 1/10th is. If 2 boats line up and get a dead even start the boat running a tenth quicker will pretty much make you look bad. Thats just the way it is especially if its 1/10 quicker in the first part of the run. Ive ran classes where Ive been 1/10 off the pace many times and its usually over a boat length with an even start at the end of the pass.

    BTW thats slowing him down well over a tenth, suit yourself its free speed and quickness, that sort of stuff usually costs alot of money but if your content with it so be it.

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    B1 Racing cs19's Avatar
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    Quote Originally Posted by HammerDown View Post
    Seriously, are you pulling my chain here?
    That skinny, knifed edged pick-up is slowing down my boat???

    I'm I being 'punked' here?
    No punking here, its slowing you down. In some applications when we want a speed trace on our data loggers we hang a pitot tube off the transom, we hang them down less than half of what youve got there and we see a significant loss in ET, you may get the same top end it will just take longer to get there.
    Last edited by cs19; 10-24-2010 at 06:15 PM.

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    Senior Member Racer J's Avatar
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    Quote Originally Posted by Wet View Post
    Yes, by 1/10th second in the 1/4.
    You bet your a$$ a 1/10th is a big deal. You win or you lose

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    Super Moderator HammerDown's Avatar
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    Quote Originally Posted by cs19 View Post
    No punking here, its slowing you down. In some applications when we want a speed trace on our data loggers we hang a pitot tube off the transom, we hang them down less than half of what youve got there and we see a significant loss in ET, you may get the same top end it will just take longer to get there.
    I appreciate your feedback...the bummer > it won't be until next April until I'm in the water again to test it out > I'm done for 2010
    I'll never know what a 10'th or even a full second feels like with my boat as, I'll never have it on the clocks at a drag race.
    However, I'll be curious to feel some acceleration, cruising and top MPH differences with the pick-up down vs up...which I've never compared.
    <img src=http://www.performanceboats.com/gallery/data/500/medium/06-30-11_1234.jpg border=0 alt= />

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    B1 Racing cs19's Avatar
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    Quote Originally Posted by HammerDown View Post
    I appreciate your feedback...the bummer > it won't be until next April until I'm in the water again to test it out > I'm done for 2010
    I'll never know what a 10'th or even a full second feels like with my boat as, I'll never have it on the clocks at a drag race.
    However, I'll be curious to feel some acceleration, cruising and top MPH differences with the pick-up down vs up...which I've never compared.
    No prob, glad to give .02 where I can, hope it makes your ride faster/quicker.. Maybe just take it off, use GPS?

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    Wet
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    Quote Originally Posted by cs19 View Post
    Wet, you might be surprised to see how much 1/10th is. If 2 boats line up and get a dead even start the boat running a tenth quicker will pretty much make you look bad. Thats just the way it is especially if its 1/10 quicker in the first part of the run. Ive ran classes where Ive been 1/10 off the pace many times and its usually over a boat length with an even start at the end of the pass.


    My post was to point out the irony of the 1/10th. In a race world, that little bit of drag is crutial, and I understand that. But in our world of heavy lake lay ups, 21' and 2900 pounds of 5 passenger fiberglass, it's irrelevant.

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    Super Moderator HammerDown's Avatar
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    Quote Originally Posted by Wet View Post
    My post was to point out the irony of the 1/10th. In a race world, that little bit of drag is crutial, and I understand that. But in our world of heavy lake lay ups, 21' and 2900 pounds of 5 passenger fiberglass, it's irrelevant.
    Well... yes, no and maybe...it may not be as 'relevant' as lets say the rudder you removed but, who's to say what would be seen on a GPS while cruising or WOT?
    If I don't/didn't see a one-mph difference it would be a wash, won't know till next April
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    I run two offshore style water pick ups one for motor and the other for the inter cooler there set about 1/4 off the bottom.Noticed at speeds above 90-95 tail lifes alot at 100 its real bad so we raised the pick ups only 1/8 off the bottom and the fixed the problem. So stuff like this and speedo pick ups will change performance alot.

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    Senior Member Widetrack's Avatar
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    Quote Originally Posted by HammerDown View Post
    Well... yes, no and maybe...it may not be as 'relevant' as lets say the rudder you removed but, who's to say what would be seen on a GPS while cruising or WOT?
    If I don't/didn't see a one-mph difference it would be a wash, won't know till next April
    I have been told a rudder can be as much as 3-4 MPH! Drag is drag! WT


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
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