the SWEnch

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

This is my new project!

My last project "the swedish winch" had some errors and instead of reparing i´m building a new one. this is how the real swedish winch will look like. I give you; the SWEnch.

knox · Kickflip Joined: 14 Jun 2007 Posts: 4693 City: Gainesville

nice!

mattttt60 · Backside 180 Joined: 01 Feb 2007 Posts: 648 City: 941

very nice cant wait to see it done

Gnarly Dancer 42 · 360 flip Joined: 21 May 2007 Posts: 5121 City: kalamazoo

motor?

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

Gnarly Dancer 42, I want to keep it lightweight so i will go for a 5.5 hp suzuki with torqueconverter. It's the engine from my other winch and i will work allright if i get the gearing figured out... right now the ratio is 3:1 and i just ordered new sprockets, the new ratio sould be 3,5:1.... hopefully that will do the trick...

Gnarly Dancer 42 · 360 flip Joined: 21 May 2007 Posts: 5121 City: kalamazoo

eriknordin, i dont know anything about winches but is 5.5 hp enough?

whats a torqueconverter?

sparrow.2 · Posted: Jul 05, 2007 4:16 am Post subject:

Gnarly Dancer 42, a torque converter is what you guys call a TAV. Check out winchskating.com if you want to know more...

eriknordin, 5,5 hp is plenty as long as you gear really carefully. Are you sure you have a torque converter and not a reduction gearbox with clutch? Are you sure 3,5:1 is gonna be ok??? I run 5:1 with 6,5hp...

dylbag · Posted: Jul 05, 2007 2:47 pm Post subject:

yea i got a 6.0 subaru... realy sik!!!
my winch has got a spooler.. i'll post some pics soon ..

eriknordin, that looks pretty shweet man.. does the drum slide side to side on that bar??

still pretty cool Cool

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

sparrow.2, I'm not 100% sure about the gearing... i just might change it to 4:1 instead. What is a reduction gearbox?

dylbag · Posted: Jul 06, 2007 2:59 am Post subject:

i used to have a reduction gearbox... i think it was the part that wouldn't let me wetstart...

now i got tourqe converter.. Cool

sparrow.2 · Posted: Jul 06, 2007 5:26 am Post subject:

eriknordin, the honda reduction gearboxes have an internal gear ratio of 2:1, so you can run smaller gears on your spool shaft. It does eat some power though, so I had to remove the restrictor and let my engine rev 6200rpm Twisted Evil

Ignore my thoughts on the gearing, I had assumed you were running an 8" spool. Obviously your gear ratio is dependent on your spool diameter, but keep in mind that if it says something like 25km/h on paper you will be getting about 10-15% more speed in real life. Don't ask, everyone has found that up to now Very Happy

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

sparrow.2, yep, thats right!i started to tare the engine apart and found that the gearbox had a ratio of aprox 2:1. Yes, the spool size has a lot to do with the gearing to. I have a pretty wide spool because it holds up to 500m of rope without interfering with my gear ratio...

The speed issue has an explanation... the spool diameter depends on how much rope is on there. While running the rope is making the spool diameter larger. and with that the gear ratio is changing. thats why you get 10-15% higher speed in the en of the run....

sparrow.2 · Posted: Jul 06, 2007 7:28 am Post subject:

eriknordin, thats what I thought too, but my spool is also rather large and my rope rather thin (3mm). It only enlarges the spool by about 1cm with 300m of rope wound up, which doesn't explain the fact that instead of the 35km/h we tried to get we ended up going about 45-50km/h.

What is the diameter of your spool? You really have to be carefull with the gearing, or you won't be able to use the winch properly. Friends of mine ended up blowing up their clutch with too high gearing and were pretty pissed off as a result...

If your gearbox has a fixed ratio of 2:1 you are not going to be able to deepwater start with it. Have you got pictures of your gearbox? A torque converter actually changes the gearing on the go with adaptable pulleys and a belt...

Raven · Posted: Jul 06, 2007 7:36 am Post subject:

[quote="Gnarly Dancer 42"]eriknordin, i dont know anything about winches but is 5.5 hp enough?

You'd better put some more mustard on that hot dog.

I'm lovin the frame in the swede colors...........sexy.

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

sparrow.2, hmmm, thats strange....

I not to sure about the waterstarts, with the gearing setup i use now (3:1) it is possible to pull up a wakeboarder but not wakeskater... and the top speed is about 45 km
/h.... so if i change the gear ratio to about 3,5:1 that would make it a little bit stronger in the start without messing up the speed to much. I HOPE...

I'll post some pics later today...

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

damn.... the TAV2 is hard to find in sweden! and the prices make you wanna cry... 670USD for the TAV2...

coricluster · Backside 180 Joined: 23 Apr 2007 Posts: 1826 City: berlin

erik...u send me half that and ill buy one in the us and ship it to you. lol thats rediculous

eriknordin · Faceplant Joined: 16 Jun 2007 Posts: 27 City: 194, Sweden

Hmmm, i got a new design for the SWEnch chassi... there will be wheels in the back to.

bachlonso · Backside 180 Joined: 02 Jul 2007 Posts: 670 City: NFA

that thing is pretty sweet lookin' Very Happy

I like it better than your first design!

right now I'm tying to figure out how I wanna build a winch - writing down all the features it's supposed to get... Cool

sparrow.2 · Posted: Jul 11, 2007 5:18 am Post subject:

bachlonso, you're building a winch?!? Give me a shout if you need any help (please!) Very Happy

I've had a couple of ideas since I built my last winch Wink

eriknordin, I was wondering how you were going to bend the tubing for your first design... Your second design is definitely a lot easier to build and will be one heavy duty winch Very Happy

Did I mention it looks awesome?!