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  1. #3001
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    Quote Originally Posted by Greg G View Post
    Size equals wind resistance. Not sure how much higher a 300R sticks its cowl up versus a 300XS but would be interesting to see.
    It is at least 2". I can no longer get my boat in the garage without trimming the motor. I cleared by 1/2" with the XS. The R is really tall.
    Allison XB21 2+2



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  3. #3002
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    Quote Originally Posted by river rocket View Post
    I'm not an expert in this type of hull design, but is a Nordic and Bernico in the same class as Progression when it comes to rough water? I have been to the Nordic factory to look at the 21 and didn't think it would handle any bigger water than my Allison. I will not dispute an Allison is going to run in Progression water. Truly impressed with what Tuff and other boats mentioned can run with a single. Really cool to read this thread.
    Bernico races offshore everywhere. The Xtreme 21 been known to knock down some monster water with its 24 degree dead rise more so than Progression.

    The 21 also likes to fly on occasion as shown in the last photo.
    Attached Thumbnails Attached Thumbnails BernicoOffshore.JPG   Bernico21Extreme300XSWhite.jpg   1048821_492909844124279_1051408428_o.jpg   BernicoFactory.jpg   BlueBernico21One.jpg  

    BlackBernico21Xtreme.JPG   Bernico21Interior.jpg   605096.jpg   BernicoRoughWaterBlack.jpg   Bernico21-300XS.jpg  

    Bernico21a.jpg   Bernico69sidebyside.jpg   Captureoooooooooooooooooooooooo.JPG   SlayerBernico.JPG   PaulBernico.JPG  


  4. #3003
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    .....
    Not sure RR which model you looked at when you were at Nordic but here is there 21' SOB. Lot of freeboard and note the four stringers.
    Attached Thumbnails Attached Thumbnails 2017Nordic.jpg   NordicTotalHullWeight.jpg   Nordic21InnerHull.png   Nordic Interior.jpg   NordicRacingSR-21 (002).jpg  

    Nordic21Yellow.jpg   Nordic21Crossfire.jpg   NordicSR21 Orange.JPG   Capture.JPG   Catalina-SR-2017-29.jpg  

    Nordic193b.JPG   NordicSR21YellowWhite.jpg   Nordic193a.JPG  

  5. #3004
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    Really killer looking boats. I will have to dig up the pictures of the boat I looked at when at Nordic, I don't recall the model.

    The R is bigger, heavier, and has a monster sporty but it will put a beating on the XS and probably hang right with an X depending on the boat. I have owned all 3 and the R is simply an awesome motor. The looks are a lot more polarizing (either you like or you don't). Obviously I like the looks... Sorry, not to derail the thread.
    Allison XB21 2+2



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  7. #3005
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    Quote Originally Posted by river rocket View Post
    Really killer looking boats. I will have to dig up the pictures of the boat I looked at when at Nordic, I don't recall the model.

    The R is bigger, heavier, and has a monster sporty but it will put a beating on the XS and probably hang right with an X depending on the boat. I have owned all 3 and the R is simply an awesome motor. The looks are a lot more polarizing (either you like or you don't). Obviously I like the looks... Sorry, not to derail the thread.
    Good info on the R and 87 octane makes things simple. I'm sure more rough water SOB's will start showing up with R's with props sorted out this year.

    I'm hoping these 22' hulls below get a 561 pound "R" bolted on the transom this year and some numbers posted up. 300XS only so far.
    Attached Thumbnails Attached Thumbnails ChaudronBlack300XS.JPG   Chaudron.JPG   300RWeight (2).JPG   a250Rweight.jpg  

  8. #3006
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    I would love to find someone who has actually weighed a 300xs. I have yet to find someone who has hung one on a scale. I have asked on forums and FB, but everyone quotes the decal and published weight, which based on the R and previous gen motors may not be correct. Just interested to see what the actual difference is.

    At first the weight difference was noticeable, but I think that’s because the motor wasn’t broke in. After 20-30 hours the acceleration times in the 5-85 test dropped considerably. At first I was averaging 20 seconds to 85 and that was propped to run 95/96 (30p promax). The boat now runs 16 seconds to 85 with a prop that will hit 100 (32promax). Huge difference after getting some hours on the motor. No setup changes.
    Allison XB21 2+2



  9. #3007
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    Here is 105 with a prop that runs a 19 second 5-85 on the R. It was 28 seconds on the XS. The motor really pulls.

    https://youtu.be/r0jUVVMrZ-E
    Allison XB21 2+2



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  11. #3008
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    Quote Originally Posted by river rocket View Post
    I would love to find someone who has actually weighed a 300xs. I have yet to find someone who has hung one on a scale. I have asked on forums and FB, but everyone quotes the decal and published weight, which based on the R and previous gen motors may not be correct. Just interested to see what the actual difference is.
    Just need to know where to look. Here is some weight info on the mighty 300XS from back in the day. 505 lbs on the scale.
    Attached Thumbnails Attached Thumbnails 300XSweightWildman.JPG   2011Weight300XSNonScale.JPG   300XSWeight15.JPG   2011Weight300XSPowerheadScaleWeight.JPG  

  12. #3009
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    Quote Originally Posted by Greg G View Post
    Just need to know where to look. Here is some weight info on the mighty 300XS from back in the day. 505 lbs on the scale.
    Thanks, I must have skimmed right by Randy's mention of actually putting the scale on the 300XS. Rayzor has some great information as well.

    So add around 10lbs for the external oil reservoir and 1 gallon of oil and we end up 36lbs heavier or about 7% heavier. That is 6 gallons of gas weight difference.
    Allison XB21 2+2



  13. #3010
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    not to derail thread...
    why are the trim tabs mounted horizontally on those ski boats as opposed to following bottom contour
    I have never seen that before
    thanks!

  14. #3011
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    Quote Originally Posted by doug7488 View Post
    not to derail thread...
    why are the trim tabs mounted horizontally on those ski boats as opposed to following bottom contour
    I have never seen that before
    thanks!
    Least amount of drag at speed, and they are flat on the water that exits the hull.

  15. #3012
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    Quote Originally Posted by 2.5-21 View Post
    Least amount of drag at speed, and they are flat on the water that exits the hull.
    Good info. Here is someone that mounted them the other way on a new Hallett 210 set up for skiing.

    It ended up being surprisingly slow with the big 450 dragging that fat gear case (.6" diameter larger than a 300XS) and with the deep engine mount position.

    IMO spectacular looking SOB, very wide at 8', plus full bow storage.
    Attached Thumbnails Attached Thumbnails Hallett210ClosedDeck450front.JPG   Hallett210ClosedDeck450side.JPG   Hallett210Deck.JPG   Capture.JPG   Hallett210V8Merc450.JPG  

    HalletKeel.JPG   2019Hallet21OBWhite.jpg   2019Hallett210w450r.jpg   LDHHk2BDRp+RVLfb%5TH3g.jpg   Hallett210S.jpg  


  16. #3013
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    Greg, I heard a 24 Tuff went 116 with a single 300XS. Do you know more on that boat?
    Allison XB21 2+2



  17. #3014
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    Quote Originally Posted by river rocket View Post
    Greg, I heard a 24 Tuff went 116 with a single 300XS. Do you know more on that boat?
    Yes. Blake’s new boat, took the 300xs off his tuff 21 and bolted on the 24. It is faster and better in every way than the 21. Blake does a lot of testing, props motor height, boat balance etc. We are talking yesterday and he thinks it has more
    2023 TUFF 25

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  19. #3015
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    Quote Originally Posted by doug7488 View Post
    not to derail thread...
    why are the trim tabs mounted horizontally on those ski boats as opposed to following bottom contour
    I have never seen that before
    thanks!
    When you mount them parallel with the bottom of the hull, the entire tab comes in contact with water coming off the bottom More contact = more drag - assuming your tabs contact the water in the full retracted position.

    When you mount them parallel with the water, only the outside edge comes in contact with the water when the tabs are slightly down. Less contact area = less drag. One downside is that you're actually twisting the tabs in rough water.

    The other theory is that when you're in rough water and the tabs are working hard, with them mounted parallel with the bottom, when you go through a big wave, the tabs give the hull "a wedgie." Wedgies = more drag and thus less speed.

    I have the tabs on my Progression 22 mounted parallel to the bottom, but in the full retracted position for maximum speed, they do not contact the water. So I'm not experiencing any loss of performance in calm water. In rough water where I'm actually using the tabs, I'm not worried about some extra drag.
    1992 Progression 22
    Mercury Racing 250R

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