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Re: Differences in Board Volume [Re: Muscles] #2985228
07/21/19 08:40 PM
07/21/19 08:40 PM
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Going from 37 to 34 is a really big jump. As someone mentioned take an empty 3 liter soda bottle and try to sink it. That's a 10% drop in volume. I suppose if you're really athletic and surfing real good waves it won't matter as much but average Joe is probably going to suck on the smaller board.


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Re: Differences in Board Volume [Re: Greg Griffin] #2985231
07/21/19 08:46 PM
07/21/19 08:46 PM
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Originally Posted by Greg Griffin
At 215 lbs , Seek well designed higher volume boards .

Way more fun .

Fug all this Modern Day Whinny volume crap . :-)
excellent point


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Re: Differences in Board Volume [Re: Muscles] #2985491
07/22/19 04:28 PM
07/22/19 04:28 PM
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You will definitely feel the difference of 3L. But that doesn't mean it won't work.

I usually ride 31.5ish liters but on occasion, I'll ride a board that's like 30L or 29.7L that I buy used or something that I want to try off the rack.

The board will usually paddle significantly worse, but I can still make my way around a lineup and catch waves, but oftentimes still catch waves well enough and feel pretty good on the wave.

If the price is right you should go for it and see how it is.

Re: Differences in Board Volume [Re: Muscles] #2985822
07/22/19 10:32 PM
07/22/19 10:32 PM
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it's worth just getting the board so you can feel / bracket your experience. You can always sell it after again and chalk any losses down to learning.

Re: Differences in Board Volume [Re: Muscles] #2985870
07/22/19 11:52 PM
07/22/19 11:52 PM
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man, shapers really shot themselves in the foot praising volume call outs years back.

I’ve ridden boards with similar rails but drastic (>5L) differences in volumes. They’ve regularly surfed more alike than boards with very similar volumes but drastically different rails.

Volume is only good for knowing how much effort is required for a given duck dive.

Last edited by sd_101; 07/22/19 11:53 PM.
Re: Differences in Board Volume [Re: Muscles] #2985875
07/23/19 12:11 AM
07/23/19 12:11 AM
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i doubt those liter measurements are remotely accurate. however....if they were....34L for 215....you gotta be in a great shape of a 215...you gotta be well experienced...and you better be surfing waves with a takeoff that flings you in...and expect to be pretty burnt from it all

Re: Differences in Board Volume [Re: sd_101] #2985910
07/23/19 01:11 AM
07/23/19 01:11 AM
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Originally Posted by sd_101
man, shapers really shot themselves in the foot praising volume call outs years back.

I’ve ridden boards with similar rails but drastic (>5L) differences in volumes. They’ve regularly surfed more alike than boards with very similar volumes but drastically different rails.

Volume is only good for knowing how much effort is required for a given duck dive.

That's why I'm so confused.

I've never really followed volume until my recent board purchase. My daily is a 5'10 x 21 x 2 5/8 and, supposedly, 37L. I use it as a small wave board. I figured a good wave board at 34L would probably be ok. It has similar dims of other boards I've owned. But it sounds like it could be a drastic difference from what others are saying.

My old daily was a 6'3 x 20 x 2 5/8. No idea what the volume is on it. Actually, the dims aren't even on it besides it being 6'3". I think I prefer it that way. The volume thing seems to cause more confusion than anything else.

And then you have different board builders and comparing volume of boards between them is completely worthless in my limited experience.

Re: Differences in Board Volume [Re: 20W-50 and blood] #2985913
07/23/19 01:15 AM
07/23/19 01:15 AM
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Originally Posted by 20W-50 and blood
i doubt those liter measurements are remotely accurate. however....if they were....34L for 215....you gotta be in a great shape of a 215...you gotta be well experienced...and you better be surfing waves with a takeoff that flings you in...and expect to be pretty burnt from it all

That was my plan.

I'm 6'2 and 215 (210 on good days). I surf regularly (3 to 4 times per week) and workout 4-5 days per week. This purchase was going to be my good wave board and then use my 5'10 for smaller days. I don't plan on trying to ride waste high slop on a 34L board. I plan to surf solid head high plus surf with it.

Still tempted to buy it. It will probably be on craigslist for a bit. Maybe I can snag a deal. It seems boards that are in the middle between sub 30L performance boards and big guy 40L+ fun boards are tough to sell. I guess not many 200 lb plus guys are interested in the performance shapes.

Last edited by Muscles; 07/23/19 01:17 AM.
Re: Differences in Board Volume [Re: Muscles] #2985918
07/23/19 01:28 AM
07/23/19 01:28 AM
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I’m an old 185 pounds and my newest short board is 5’10 x 20 x 2 3/4. 34 liters. I had the same model last year but a little smaller at 32.4 liters. The new board felt boaty at first but got used to it. Lots of flow and built in speed. I put in smaller fins, from the Large AMs down to the Med. Fannings and it helped it go more vertical.

I could ride my old boards that are 31 liters but I would miss more waves and be pretty worn out after a two hour sesh.

I have a step up Tokoro 4X that’s 6’2 x 20 x 2 3/4 and it’s 34.5 liters if that helps with your 6’3.

Volume is just another number to help me figure dims out. I just give my shapers a ballpark with the other dims and it helps both of us.

Re: Differences in Board Volume [Re: rts265] #2985977
07/23/19 05:35 AM
07/23/19 05:35 AM
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Originally Posted by rts265
..

I went up to 43+ at 215-220lbs and loving it

Previous board was closer to 40 and just felt myself working too hard, so yeah volume makes a difference

I completely submerge my 43l board when paddling


That's interesting. I had always assumed that an effective amount of volume would have one paddling their HPSB with the nose tip out of the water. With your post in mind when I went surfing yesterday I took a look at what my board was up to. In clean offshore conditions, in my 4.5 mm hooded Patagonia wetty (not renowned as being the lightest of rubber) my regular HPSB paddled on flat water with about the first couple of inches of the nose length out of the water. There is always surface movement going on so this was not a continuous state of affairs, nose tip would go close to level at times.

Although my HPSB is 1" shorter than me, due to being small I am not representative of most surfers so I took a look at some IG shots of pro/team surfers paddling their boards and it seemed nose tip would be at least level with the surface.

Just as a point of historic interest the gold coast shaper Dave Verrall I mentioned in my earlier post was the first shaper to propose volume as measurement on the Swaylocks forum. At that time he had team riders and he noted some consistency with their surfboard volume to body weight ratios. If I remember correctly he did weight in KG divided by Litres of volume, so I will crunch the numbers this way.

Myself 0.433
You 0.43 i.e proportionally a tad less volume than me.
Muscles current daily driver 0.38
Muscles proposed HPSB purchase 0.34

Reference this to the super fit pro Seabass - 0.36.

So although the OP's proposed purchase would have him on proportionally less volume than a top CT pro from the exchanges that went on Swaylocks it seemed that some of the big guys were comfortable on a lower volume to weight ratio than the pros. Muscles I don't know what it is like to be your size, but just from the numbers could be doable if other criteria such as the rail thickness is right. Some people like all their boards to be the same volume/similar rails, but others like their small wave boards to carry a bit more volume and bulk in the rails. I like my small wave boards to have similar rails to my good wave boards, but be a little wider and a shorter, but that's my personal preference.

Re: Differences in Board Volume [Re: Mr J] #2985982
07/23/19 06:20 AM
07/23/19 06:20 AM
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I’ve been told different shaping programs can vary a bit in volume calculation. It’s a good idea to have a range in mind and work from there. Find your desired length and width then adjust the tickness to hit the sweet spot.

Re: Differences in Board Volume [Re: Muscles] #2985988
07/23/19 09:40 AM
07/23/19 09:40 AM
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I have currently blown out to 220 and am riding 34-37L. Thought i was lighter and actually bumped my volume up from 32-33L earlier this year. so my ratio is comparatively pretty low. I am an ex swimmer / prone board paddler so am a reasonably strong paddler, however compared to my lighter mates I definitely don't catch waves as easily, but wouldn't say i have serious issues getting into waves. my boards plane fine once I am on the wave. Planning to lose a few (more than a few actually) kg's rather than sizing up any more.

Re: Differences in Board Volume [Re: Muscles] #2985990
07/23/19 10:30 AM
07/23/19 10:30 AM
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I should have said I can completely submerge my board when paddling

Just saying at my weight 43+ is not a boat

Great wave catcher and volume has not hindered performance at all

Also, I feel like I’m top heavy. My legs are skinny as shit and people are surprised I’m over 200. I like a fuller nose

Re: Differences in Board Volume [Re: Muscles] #2986173
07/23/19 04:38 PM
07/23/19 04:38 PM
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After you hold it under arm and feel her out I would notice if I could sink it or not. I never worried about volume before growing up in 80z until I had stretch shape me some custom buzz boards made short. My dd is 27l I am 5'8" 170#s and board is superbuzz 5'2" 19.5" 2.375" so length of rail and meat in middle and wide(r) nose can make difference while paddling which is what we spend doing most.


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Re: Differences in Board Volume [Re: Muscles] #2986511
07/24/19 08:03 AM
07/24/19 08:03 AM
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I'm not totally convinced more volume helps catching waves. There are so many factors that make a board easier to catch waves than simply volume. You can have a massive cork at 100L and it will just sit out in the water doing nothing but bob up and down if the shape is not suited for planing. Or just look at body boarders, they catch waves super easily with way less volume. Now if you take two good performance short boards with the same length and width, but one is thicker and has more volume. I would expect the thinner board will turn better, but the thicker board will catch waves easier depending on the shape of the wave. If its a fat point break style wave, then the added volume will help catch the wave because there is less of you dragging in the water. But, if the wave is steep and hollow, the thinner board will catch easier because you can point it down the face sooner and use gravity to your advantage in a late drop. Whereas the thicker board might not want to aim down and you get held up, or you over compensate and push your chest too far forward and end up nose diving.
Basically, i would rather know the volume than not know. Its one more parameter we can use in our best guess. I would rather that they published rocker numbers, but I think that falls into the secret sauce every shaper uses to distinguish themselves from the competition. It's an endless quest in finding the perfect board dimensions. I've given up on online board buying, nothing is as good as going to the shop and lining up boards side by side to see what you need.

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