Longboard quad fin questions

Good afternoon,

Okay, I’m getting ready to shape a longboard - first one in EPS in years. Thinking of a highish performance all-arounder. 9’3 x 17.5 x 23 x 14.5 x 2 7/8 or 3. Single to slight double concave in a vee, lower soft rails to a hard tail, natural rocker. Rounded pin. My go-to longboard right now is getting tired - similar dimensions with a bit less foam and is in poly, looking to go a bit lighter and with a bit  more volume as I am, hate to say it, getting older.

And, about a decade late, I’m thinking of going with a 4+1. Interested in shaking things up a bit and seeing how the quad goes. When I want to ride traditional, I’ll get out the Tweener or my 9’7 Ekstrom, but I do want some glide…

I’m currently leaning a bit more towards a Rusty-influenced version, with the back fins a bit closer to the rail that what I mostly see. I’m fairly good sized (6’4 and roughly 195/200) and am front foot friendly so was thinking to move my fins up a touch as well.

I’ve read some older threads on the topic, but am curious what people are riding/liking and might suggest for position including toe-in, and cant. 

Any suggestions are, as always, appreciated.

here’s the link to a 5 fin HPLB I own, which uses the Rusty quad set-up I prefer ( helps that my shaper is a former Rusty shaper).

http://www.swaylocks.com/forums/longboard-gun 

great board, excels in open face outside waves.  When peakier, prefer it 2+1, easier to roll turns off the bottom and top.  When walled up and jacking, prefer the quad set-up, which flat out hauls okole down the line.

Been a while since I ordered a board of any length that wasn’t a 5 fin, more options to match the board to the wave…

Had a simular question.

here is the link

ICC rocks the house!

As “Ophart” (retired sreen name)

I inquired and took the best

as a starting point.

Read, digest and do what you believe in!

http://www.swaylocks.com/forums/quad-fin-position-hp-longboard

 

Thanks Mattwho for posting that link, I had forgotten about that thread.  Since I have been having so much fun on my Banana Boat quad lately, I have a couple other longer boards I’m thinking I might try converting to quad capability, have to read up and do my homework!  So many options, so little time…

Thank you guys for the responses. Starts to confirm a lot of what I was thinking.

I had read that thread recently, a lot of great info there. ICC, it seems that your link isn’t working for me, is that the same board that’s in the thread Mattwho posted? I have placed my fins forward for years, so this is making sense to me. I do this on 2+1’s and on singles, some would say too far on my midrange singles but I like moving the sweet spot forward and feel like I get a better fin/rail collaboration.

Now let’s get personal - cant and fin choices. Was originally planning to go FCS fusion boxes. Probably because my glasser likes using them and because I have my various 2+1 side fin combos to a point where I really like them. But I’m open to options…

Thanks again.

 

 

yea , same board. Have no idea why the link doesn’t work, cause you can get to it by Googling ‘Swaylocks Longboard Gun’, and it’s the same IP address.

Toe-in measurements I put in the fin thread are what I would recommend. Believe all Future boxes are canted at 6.5 degrees.

Best semi I ever rode, an 8’2 RP I bought on the North Shore from Mike Tuten’s personal quiver during a stay there, had the fronts at 15" and rear tri at 5.5". Board was magic. When it broke, I was way bummed.

Sweet, thanks. I will look up the board. Getting fired up on this one.

Ordering some pvc for stringers next week. Getting what I consider to be the best board I ever shaped (still wonderning why I sold that one…) back from a friend next week to use a a reference for rails and bottom contours. Was looking in my notebook and trying to precisely remember what I meant by “lowish tubular rails”. I have a pretty good memory for boards, but the under edge radius on that one is escaping me. Must have been resin-influenced since I quit smoking years ago…

Good info in them links, y’all.  Thanks.

Funny, I somehow missed or didn’t make the connection between OPS and Mattywho.  I always enjoyed OPS’ insistence on referring to himself in the 3rd person.

Rock on.

 

9’2" x 22 1/4" for Eugene 

Custom sized and placed fins  

Thanks for posting that board Greg. Images are nice to help visualize where I’m going with this and to glean some indirect info on placement! I like the rail line by the way. Was inspired by your various posts and am thinking to order a sheet of G10 to make up a set of fins. Any advice that you’d care to share on size and foil would be welcome for a total quad newcomer.

Funny how when I was building a lot of boards, or relatively a lot of boards - 50 to 70 a year - so many things were intuitive. After a long slowdown and then break, I have to think things out a lot more thoroughly.

Front fins are 4 5/8"  rears are 3 3/4" 

Thank you sir.