New ej20 subaru turbo 2:1 belt drive 10 blade

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Swamp ass
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New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Wed Apr 17, 2019 9:33 pm

Just got a 14' okie gator with an ej20 turbo subaru. 2:1 belt drive. 5 v-belts. 10 blade turbo prop from a hovercraft. Nasty boat, makes 270ft pounds of torque stock. Havent tuned it yet. Just shredded all 5 of the belts cruisin from lake harney woods boatramp with a couple buddies, one belt started to go, and couldnt shut it off in time. This was its 4th time out and the belts looked a "little" dry rotted. But got new bets on the way. Heres a couple pictures of a bad but good day. God bless ! :florida: :rebel: jessica and gracelynn sure had fun, thats what its all about, right ?
Attachments
20190417_173305.jpg
20190417_172252.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

CarMotorBarge
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by CarMotorBarge » Thu Apr 18, 2019 5:17 am

That is what it is all about. 8)
14x7.5 Al David hull with 14 inch transom
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SWAMPHUNTER45
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by SWAMPHUNTER45 » Thu Apr 18, 2019 7:29 am

So this uses 5 standard automotive V type fan belts to transfer power from the engine to the drive?

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by kwanjangnihm » Thu Apr 18, 2019 8:16 am

Welcome to SA Swamp Ass!

Be safe and have fun with the family! :salute:
" I don't care who you are back in the world, you give away our position one more time, I'll bleed ya, real quiet. Leave ya here. Got that? "

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Thu Apr 18, 2019 9:05 am

Thanks ! Yes it has 5 v belts, the motor is almost in the bottom of the hull. Really low center of gravity. Looks like ill be taking to two hubs off to change all the belts. Woohoo ! Lol. Ill definitely take some pictures of how it works exactly.
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by SWAMPHUNTER45 » Thu Apr 18, 2019 12:04 pm

You may want to call Gates or Dayco and discuss your need. It seems I recall many years back the term "matched belts" where the manufacturer paired or grouped belts of near exact specs. I surmise that in your application you wont be able to just grab 5 stray belts from AutoZone and put them on. While showing the same part number they are always a little different from batch to batch any you need them all pulling exactly the same. The engineers at Gates have different compounds and designs that may transfer over to get you a set that lasts a while.

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Slidin Gator » Thu Apr 18, 2019 12:57 pm

Try Googling Banded or Multi-V belt. They make them upwards of 20 belts all joined together.

Image
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Thu Apr 18, 2019 3:34 pm

Slidin Gator - I was just looking into those. it's actually cheaper to buy a b72/05 banded belt than 5 seperate ones. But i'm just unsure about that very outer layer of rubber wanting to eventually peel off due to the backside of the belt rolling on the idler pullies. But it's something i'd like to try for sure.

Swamphunter - Yeah the parts stores all say "we've got one or two here, and can get the other 3 tomorrow", which means they would've all came from different batches. I did contact Gates, and explained what i was doing. They're only gonna charge me $16.00 a piece, and should last about 5 years.
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by SWAMPHUNTER45 » Thu Apr 18, 2019 3:48 pm

I have had excellent performance results with the Gates green thread belts.

Best of luck with it and once you get the bill paid order another 5 and carry them with you.

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Slidin Gator » Thu Apr 18, 2019 5:13 pm

SWAMPHUNTER45 wrote:once you get the bill paid order another 5 and carry them with you.
It sounds like open heart surgery to replace them. Certainly makes for a good argument to go with one of the prop systems that let you take the whole prop and hub off as a unit. That, some hub pullers and a rechargeable impact might make it a reasonable thing to accomplish in the woods, just hate to have to do it in the middle of the lake.

I certainly like the concept of putting the engine weight down low, nothing but good there! Any thought of a cog type drive belt upgrade?
I grew up thinking I-10 was the Mason Dixon line.
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by barhopper » Thu Apr 18, 2019 6:59 pm

How about a video of it running? I’d like to see that!

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Fri Apr 19, 2019 8:17 am

I actually ordered the b72/05 stacked belt too. Do ill keep the individual belts for extras. And yeah its not something you want wanna do on the river. Ill definitely take a video on tuesday when i fet the new belt on.
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Fri Apr 19, 2019 9:01 am

Get*
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by jchovernut » Sun Apr 21, 2019 12:01 am

I’d definitely go with a banded belt. Most of us Hovercrafters use either a banded belt, or synchronous drive like the Gates PolyChain. Backside idlers typically won’t harm a banded belt, either. A synchronous belt is tensioned ( acoustically tuned) & doesn’t require an idler.

For banded belt options: belts, pulleys, etc, talk to Billy or Bob Zang at Universal Hovercraft. They run belted Soobs in their WIG...flying Hovercraft
For Gates Synchronous belts, pullies, etc, talk to Bryan Phillips at Amphibious Marine. He runs lightweight belts & pullies on Steyer Diesel powered Hovercraft. A centrifugal start-up clutch is really useful on these setups, too!!
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Fri May 24, 2019 7:38 am

Alright guys, im officially back on the water. I tried the banded belt, it worked for 2 trips out but i found that the belt was getting hot, and trying to slip at full throttle no matter how tight i tightened it. I ordered the gates high power ll v belts, and WOW what a difference, i wouldve never guessed that this little engine had this much power ! Its scary fast. Now ive just got to build 3 sets of jacks to get the bottom ironed out, and it should be an animal! When im on a plane i can feel a bubble under the boat and then it tries to plow, and when i run the hill i can go back and look at the marks, and it looks almost like its riding on rails. So onto that getting those jacks built this weekend !
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Fri May 24, 2019 7:40 am

:D
Attachments
20190522_181654.jpg
20190522_181519.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Thu Jul 04, 2019 5:21 pm

So I finally got around to removing the rigging, cage, and motor stand. Pretty easy being all one piece. Just removed the 8 bolts from the stringers, the fuel filler hose and bildge pump wires. I'm gonna cut and lower the entire rigging 6", build 3 sets of jacks, and repaint the inside of the hull. Any recommendations on which type o paint to buy? I appreciate any input!
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Thu Jul 04, 2019 5:25 pm

A few pictures
Attachments
IMG_20190704_145447.jpg
IMG_20190704_145439.jpg
IMG_20190704_145425.jpg
IMG_20190704_145412.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Sat Jul 06, 2019 4:54 pm

Chopped off 6" today, gonna weld in some flat steel, angle some angle tomorrow. And then start building the jacks.
Attachments
IMG_20190706_151352.jpg
IMG_20190706_151340.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Sat Jul 06, 2019 4:58 pm

:D
Attachments
IMG_20190706_151413.jpg
IMG_20190706_152017.jpg
IMG_20190706_151404.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by JLP3314 » Fri Jul 26, 2019 7:07 pm

Drove a long belt drive for six wonderful years and loved every minute of it.
Things you can do in that boat right there, (with that low CG) that will blow folks minds! 8)
Don't waste your time-its the only thing you can't get back, (Cntry141IQ/John had another thousand of these before he went sliding into the sky). :-(

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Sun Jul 28, 2019 1:36 pm

What engine did you run on it? And what was the hull size? Another cool thing about the belt reduction I have is you could change the ratio pretty quickly and cheap by switching out the top pulley. If someone built a long belt setup like a cvt transmission, that would be awesome.
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by daxxe » Tue Jul 30, 2019 8:00 pm

Looking good man, can't wait to see the final result.

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Tue Jul 30, 2019 8:31 pm

Thanks! I'll make sure to get plenty of pics and a few videos. Just got done doing some more welding. Got my hub center at 53" from the floor of the boat, 12" to the bottom of the oil pan, and 38" to the top of the intake. curious what most people's hub center is.
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

Swamp ass
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Re: New ej20 subaru turbo 2:1 belt drive 10 blade

Post by Swamp ass » Wed Jul 31, 2019 9:07 am

:shock:
Attachments
IMG_20190712_182833.jpg
IMG_20190712_182851.jpg
IMG_20190712_182801.jpg
IMG_20190712_182928.jpg
Subaru EJ20 turbo 4 banger, 300hp 2:1 belt drive, 10 blade turbo warp drive prop, 14' okie gator glass hull :rebel: :florida:

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