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Need Quad help please....?

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Created by Bnaccas > 9 months ago, 20 Jul 2010
Bnaccas
VIC, 1722 posts
20 Jul 2010 11:27PM
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Off to Bali on the weekend and just made myself a new quad fin SUP.

I want a fin setup that is going to be fast and drivey, something that will hold and maybe even get
me barrelled if I'm lucky. So speed and hold are probably the most important factors.

A friend on the Goldy suggested Sunnys as front fins and something like FG5's for back fins. I have
this setup already but haven't used it much and wondering if anyone else has an opinion.

DavidJohn
VIC, 17454 posts
21 Jul 2010 1:59AM
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This looks like a nice set up tht Paul is using on his new 8'6" PSH Ripper.

DJ

Bnaccas
VIC, 1722 posts
21 Jul 2010 10:15AM
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Looks a bit weird, don't know much about those fins.
Looks like they give heaps of drive, maybe fast.

CMC
QLD, 3954 posts
21 Jul 2010 10:31AM
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I ride those fins for a few waves only and couldnt quite get the lack of drive from the tail feeling.

I like big fins though, the Sunny Fronts would work well with AM2 sides I reckon. These felt a little driveless for me. I was on a board I had never ridden either though.

How did you set the quads in? Is it the classic half way back, half as much cant and half the angle type set up?

Simondo
VIC, 8020 posts
21 Jul 2010 11:08AM
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I wouldn't be rushing into putting the FG5's up the back.... That fin is actually pre-set with extra toe-in.... but I'm not saying it won't work.

FCS have a big range of quads now.

DJ's pic is Futures obviously. Sounds like you're on the FCS plugs ?

Do you have time to acquire a set of these.... Simon Anderson S25 Large.
http://www.surffcs.com/en/products/fins/Quads/S25LARGE.aspx
or
www.surffcs.com/en/products/fins/Quads/Q-PC7.aspx

Edit;
Quite a few of you will already be aware of this. These pics show the "pre-set toe-in" on the FG5. Blue Fin is FG5, and Grey Fin is a Glide Fin (from Torquay) with an identical template to FG5. The photos are showing the inside flat face of both fins, and the tabs on the Glide Fin are flush with the inside face, but the tabs on the Blue fin are off-set on the inside face, for more toe-in, for tighter turns.







Scotty Mac
SA, 2055 posts
21 Jul 2010 10:51AM
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Brendan,
Like all fin choices its dependant on how wide the tail is on your board, how the rocker and rail are formed etc ect. Generally the SA large rears are way too big. Assuming typical dimensions, Id suggest the PC SF4. Alround good fin set up. I use a combo of PC-5 fronts with SA med rears seems to be a my fav set up for me at the moment on both my sup and my short baords but means your need to buy two sets of fins. The SF4 are similar to these all in one set off the shelve. Have a good trip.

CMC
QLD, 3954 posts
21 Jul 2010 11:58AM
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Scotty Mac said...

Brendan,
Like all fin choices its dependant on how wide the tail is on your board, how the rocker and rail are formed etc ect. Generally the SA large rears are way too big. Assuming typical dimensions, Id suggest the PC SF4. Alround good fin set up. I use a combo of PC-5 fronts with SA med rears seems to be a my fav set up for me at the moment on both my sup and my short baords but means your need to buy two sets of fins. The SF4 are similar to these all in one set off the shelve. Have a good trip.


Yes, all of these factors of board design cross multiplied with your own style, weight diestribution and power.

last week I rode a board with M7 Fronts with M5 centres in the rear which are bigger than SA large quad centers. For my money I would have preferred a little more fin area.

Point is it's horses for courses, there are no firm answers, you need to work out what works best for you. What I feel lacks drive may feel too stiff for you. Some people prefer to pivot others prefer more fin area to allow them to stay on rail a little longer.

Test, test, test. It's the only way.

CMC
QLD, 3954 posts
21 Jul 2010 12:05PM
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Simondo said...

I wouldn't be rushing into putting the FG5's up the back.... That fin is actually pre-set with extra toe-in.... but I'm not saying it won't work.



Most people are still using center fins in the back arent they? I know sides work well but the common choice is a double foiled fin. FCS and Future make double foiled assymetric fins for the rears in quads which is like an 80/20 foil as an in between center and sides.

Simondo if you look at Cambered foils as opposed to flat sided fins from any company you will notice an adjustment of the angle to best position the fin blade for angle of attack and correction to the zero lift line. Inside foil fins create additional lift to flat sided fins and hence the correction is required to position the fin at its optimum angle.

The FG5 was the first inside foil fin FCS made, they have refined the foils and angles since this time but there is science behind these angles above and beyond just toeing in the fin a bit more to make it looser although this certainly was one effect. Some loved it some hated it.

The M5 has it also in an advanced form and this fin although a stock composite fin was ridden by more than half of FCS's team riders when they had the choice of any fin to ride.

Tryfan
QLD, 256 posts
21 Jul 2010 12:12PM
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Any chance you can post a pic of your board?

As well as your board specifics as per Scotty Mac, and the size/hollowness of waves you will be surfing, your weight, height, and how you tend to surf can give a range from Lopez (large) to Kelly's (small) in quads.

Sounds like you have FCS setup?

The SF4/Stretch are a safe bet for an all round 'off the rack' quad set though.

Scotty Mac
SA, 2055 posts
21 Jul 2010 1:22PM
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8'2" x 28.75

Set up for waves all types up to 4 foot. After 4 foot I put in the SA large fronts with the SA med rears or go to SF4 on a gunny board.

Bnaccas
VIC, 1722 posts
21 Jul 2010 11:02PM
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Thanks guys, yeah I know there are a lot of variables but I was just hoping for some guidance which you guys have given. The board looks something like this although the dimensions ended up being 8'6" x 28.7" x 4.05" and roughly 108L after a few small changes.

I'm 82kgs, 5'8" and like a loose board, although this was made to go well in faster, steeper, hollower waves. Less top to bottom and more down the line. At least this is what I'm hoping to get from it. My other boards were meant for anything up to 4' but I hope this will be able to handle up to 6'.

My thinking behind the Sunny's and FG5's. The Sunny's have a large amount of surface area & are tall so should hold well but are pretty upright so should still be loose. The FG5's with the inside foil and long base should give plenty of drive. FG5's have been my favourite fin for years, at least when I was surfing.

I have only ridden quad SUP a few times, first the Naish 9'6" (tanker) and recently an 8'8" custom which I loved so I'm not that experienced when it comes to quad SUP's. Thanks for the feedback everyone, unfortunately I don't have time to test, test, test cos I'll be on the plane Sunday morning and it still needs a hot coat.




lance parma
VIC, 54 posts
22 Jul 2010 9:12AM
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Bnaccas - you coud visit Oke surfboards braeside. Those guys own Speef Fins. They made me a kneeboard a few years back (Lis fish style design) that has 2 large fins (and the option for a stabiliser).

I've ridden the board in decent surf with and without the stabilizer and it board works better without the stabiliser . Due to the size of the fins the board will hang in there on a bottom turn and doesn't lose drive or spin out (like old twinnies were prone do do).

I'm not sure the model of the Speed fins I have - but they are big with quite a fit of flex. I am thinking you could speak to Oke about 2 large speed fins trailed by 2 smaller stabilisers (or regular sized fins).

I had another set of smaller speed fins in the board originally that I lost when running aground on some rocks. The bigger replacements I have now have made the board fly. Speed fins have a different plug to FCS fins though, so if you have fcs plugs in your board Oke may not be able to help at this point. Nonetheless, the large speed fins are worth a look and they're good blokes at Oke.

Bnaccas
VIC, 1722 posts
22 Jul 2010 9:44AM
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Thanks Lance, yeah I've got FCS. Speed fins won't fit although FCS will fit Speed fin
plugs. They are a good plug system for sure, probably the best but the fins are still
mainly a basic composite.

The OKE guys are good, they will be spraying my board when I get back.

Brooko
1672 posts
22 Jul 2010 5:44PM
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Hey Brendon good luck with the trip mate I have the Fcs 4s on my board they are unreal pretty expensive at $100 but def what your looking for ! They are really small.

Bnaccas
VIC, 1722 posts
22 Jul 2010 9:58PM
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Cheers Brooko. I'm looking forward to some warm water and nice waves.

I must get down your way again soon. Would be good to get some waves with yourself,
Robbo and the ripper on the PSH (sorry, can't remember his name). Next time I come down
I'll have to make it for a weekend or preferably a couple mid week.




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"Need Quad help please....?" started by Bnaccas