can changing the fin(s) - make my sup faster.

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WINDY MILLER
WINDY MILLER
WA
3183 posts
WA, 3183 posts
20 Feb 2009 9:31am
wondering about tweeking a bit more speed out of my JL 10'4 whilst on the wave.

I've got the stock standard fins with it.....2 thrusters that are a bit 'plasticky' and the centre fin is a very stiff JL fin...

I'm not one . normally, for messing around with fins, i just use the ones that come with em, bang em in the middle and use them till they break.

Are there any options to make board go faster or options to loosen up?

thanks

WM
Brooko
Brooko
1672 posts
1672 posts
20 Feb 2009 9:52am
Hey windy, how are you mate? Changing fins is without doubt the biggest modification change to any board.
I have been playing around with all sorts of fins lately (although I ride quads) dont be scared to change them it will blow your mind the difference they will make.
oliver
oliver
3952 posts
3952 posts
20 Feb 2009 9:55am
I've been mucking around trying different fins for my board and you can really notice a big difference between different combinations, sizes and positions.

I wouldn't go as far as Brooko about it blowing your mind though.
DavidJohn
DavidJohn
VIC
17570 posts
VIC, 17570 posts
20 Feb 2009 12:56pm
I was going to put a small speed fin in my Glide last week to help speed it up and I'm sure it would have made some difference.

But sometimes a gain in one place means a loss somewhere else.

Coming from a windsurfing background I know that fins can make a huge diference..and I mean HUGE..

BTW.. I used a small 8 3/4" center fin on my 11'4" yesterday at the pines instead of the huge 10 1/2" stock fin.

Not so much for performance or speed but because it's so shallow and with a reef bottom..



Here's a pictures of the fin that Blane Chambers recommended that Rich use in his new 9'6" PSH and Rich said it made a big difference.



Fins aren't cheap but they're worth it trying different ones till you find one that you like.

DJ
aus301
aus301
QLD
2039 posts
QLD, 2039 posts
20 Feb 2009 12:17pm
windy, have a go with some of your smaller wavesailing fins in the centre.

I threw a very flexy tabou fin in my 11'4 the other day and was surprised at the difference.
Piros
Piros
QLD
7305 posts
QLD, 7305 posts
20 Feb 2009 2:24pm
Changing your fins/fin systems can make a massive difference to your board, you didn't mention how big your centre fin size but I'm guessing it's 7 or 8" ,try smaller rear fin 5 or 6" or change your board to a thruster set up , just pinch some fins out of your mates boards and try all different ones.

For the rear fin if it's in a box you can buy an FSC adaptor for $25 at your local surf shop and then you can run standard thruster sets

A stiffer/quality fin will straight away give you more drive and down the line speed and enable you to get the board more on it's rail and hold there , throw the plastic fins in the bin.
hilly
hilly
WA
8136 posts
WA, 8136 posts
20 Feb 2009 2:16pm
Hi Windy

Not taking the piss here but knowing your technique on the wave you would get more speed by developing a solid bottom turn than you would by changing fins at this time in your surfing development.

Without putting pressure on the fin in a turn you will notice little difference apart from paddle stability and paddle turning.

Pumping the board up and down the wave, riding high on the face and being close to the steepest part of the wave will help.

I put good quality 4 inch side fins in my JL and that helped with direction changes but there was no change in speed, more drive through the turn though(Kept the speed longer in the turn).

I have gone back to the original JL centre fin works well.

Cheers Andrew
Brooko
Brooko
1672 posts
1672 posts
20 Feb 2009 2:42pm
oliver said...

I've been mucking around trying different fins for my board and you can really notice a big difference between different combinations, sizes and positions.

I wouldn't go as far as Brooko about it blowing your mind though.


I geuss it depends on the type of waves one may be surfing
62mac
62mac
WA
24860 posts
WA, 24860 posts
20 Feb 2009 7:15pm
It took me many years before I started playing around with fins and set up!
Start at 10inch and work your way down,I did and it really improved my surfing
After I sorted what was best for me,I settled for a 7 inch centre on all my boards!
I dropped a 8inch on my 11.4 Naish its like taking a foot or two of length off the board!

mac
Greenroom
Greenroom
WA
7608 posts
WA, 7608 posts
20 Feb 2009 7:22pm
hilly said...

Hi Windy

Not taking the piss here but knowing your technique on the wave you would get more speed by developing a solid bottom turn than you would by changing fins at this time in your surfing development.

Without putting pressure on the fin in a turn you will notice little difference apart from paddle stability and paddle turning.

Pumping the board up and down the wave, riding high on the face and being close to the steepest part of the wave will help.

I put good quality 4 inch side fins in my JL and that helped with direction changes but there was no change in speed, more drive through the turn though(Kept the speed longer in the turn).

I have gone back to the original JL centre fin works well.

Cheers Andrew

I agree with Hilly
Change your style a bit more to a more natural surf stance. I think at the moment you look like you are in the foot straps on a windsurfer. Bend both knees through the bottom turn. Keep your upper body the same height through the turn. Then drive the board through the top turn by straightening your front leg but keep your back leg bent.
Having never surfed before you are doing bloody amazing. Keep it up.
I will show you what I mean tomorrow morning

Brooko
Brooko
1672 posts
1672 posts
20 Feb 2009 8:00pm
Great advice right there hilly & greeny I dont know how windy surfs, but not doing a grommethood in surfing, good mates like you guys will get him on the right track.

This is the only thing about sup, because it is relatively easy to learn all the newbies are missing out on the real way to surf, but as long as someone is keen to learn and respectful , there will always be a saltdog somewhere around to help
WINDY MILLER
WINDY MILLER
WA
3183 posts
WA, 3183 posts
20 Feb 2009 8:48pm
yep, hilly and greeny, advice taken onboard - thanks.
work on stance, i know i'm a bit lazy in this department


going to have a muck around with the fins aswell.
got some nice glass future thrusters on my stoney windsurf board, will give em a whirl.

Brooko
Brooko
1672 posts
1672 posts
20 Feb 2009 10:15pm
WINDY MILLER said...

yep, hilly and greeny, advice taken onboard - thanks.
work on stance, i know i'm a bit lazy in this department


going to have a muck around with the fins aswell.
got some nice glass future thrusters on my stoney windsurf board, will give em a whirl.




Mate it sounds like your killing it already anyway, but just check out what these guys reckon and I bet you will be stoked and learn some stuff that might take a long time to learn on your own
Bnaccas
Bnaccas
VIC
1722 posts
VIC, 1722 posts
21 Feb 2009 12:56am
Those black plastic FCS fins that come standard as side fins in a lot of boards are terrible.

In my current board I'd have to say I noticed a bigger performance difference when I changed to good glass side fins (rather than the cheap plastic FCS) than when I changed my center fin. Bare in mind my centre fin change was from a good 8" glass fin to a good 6" glass fin.
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