Hardcore offroader: '70 Amphicat 6x6 AATV

  1. Welcome to GM Inside News Forum – General discussion forum for GM

    Welcome to GM Inside News Forum - a website dedicated to all things GM.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join GM Inside News Forum today!
     
Results 1 to 15 of 15

Thread: Hardcore offroader: '70 Amphicat 6x6 AATV

  1. #1
    Firebird Concept (the turbine one) F14CRAZY's Avatar
    Join Date
    May 2006
    Location
    Grand Rapids, MI
    Posts
    11,898
    Thanks
    263
    Thanked 845 Times in 468 Posts

    Hardcore offroader: '70 Amphicat 6x6 AATV

    I actually picked this up like 4 years ago in Wisconsin. The owner had it apart but everything seemed ok, so I put it back together. I couldn't get the original Sachs 277 cc two stroke motor to run consistently so I picked up a Honda GX390, 13 hp 4 stroke slightly used on ebay and a new Comet clutch. Its been like 4 years in the making but I've finally got it pretty well figured out with a few new chains and sprockets (there's a lot of them)

    This thing's around a 1970...it's an amphibious ATV though I also think of it as being an American ATV...back then the Japanese were the ones that brought us good dirt bikes, 3, and 4 wheelers...we had boats with wheels. It's made of Borg Warner "Cycolac", aka ABS. The drivetrain and axles are on a steel frame inside the tub so the plastic isn't really exposed to forces. You've got two sticks and a throttle, with the sticks controlling a small transmission with brakes and clutches inside and a centrifugal clutch on the motor (CVT, like a snowmobile, go kart, etc) The Firestone tires have a max rating of 2 PSI...you can push them in pretty far with your foot.

    And it will go anywhere. I'm working on the video footage but I've driven over fallen logs, steep ditches...its pretty sweet obviously with 6 wheel drive, crazy approach and departure angles, and a really low center of gravity. It's really slow in the water just using wheel power (like 2 mph at full blast). I need to work on it some more but I've added an outboard motor mount so I can at least use a trolling motor. It isn't too heavy...I can pick up one side of it so its not bad to trailer with my Forester.

    It's pretty sweet having traction and torque...I was able to pull in the fishing boat in a great show of power lol. It's fast enough though...I can pull the leaf and clippings sweeper around the yard a lot faster than the mowing tractor can. It's crazy fun.

    It's like unstoppable as long as your have the courage to shove the sticks forward. A lot of these old 6x6's didn't have reverse but this one does so you can get out of nasty spots. The Amphicat was one of the better ones and they're somewhat common as far as these go. A lot of these things were cheaply engineered (and thus they're not around anymore). All the chains and sprockets eventually do wear out and are tedious to replace. The ABS isn't that think and can be broken if you hit something. They often had hollow axles which are a common thing to have to fix on old 6x6's but the Amphicat's got forged axles. I have brand new seals for it which I'm going to put in soon to stop the slow seeping. It's said that they're "impossible" to sink due to the air in the tires, but nevertheless I wear a life jacket when crossing the lake (30-some acres)

    Argo and Recreatives Industries still make 6x6's (and 8x8's).

    Haven't tried them but I've also got an original set of snow tracks for it.

    The pix and upcoming footage are from our cottage on Eagle Lake in Mancelona, MI, shot by my bro, with his Canon D30 (I think)





    I didn't hit the water very fast...it'll make a lovely splash at full blast but won't really get you wet





    '07 Subaru Forester 2.5X 5MT. Bought new. 197k miles. '05 Dodge Durango Limited Hemi AWD. Mom bought new. 102k miles. '74 Buick LeSabre Luxus convertible. 455-4/7.5L. '89 Buick Reatta. 3800 SII L67/F40 six speed swap to be completed someday. Wife's: '07 Subaru Forester XT. World Rally Blue Mica.

    '87 BMW K75c. '87 Kawasaki 650SX. '85 Bayliner Capri 1952. '71 Chris Craft Coho 33'. '70? Amphicat 6x6 AATV.

  2. Remove Advertisements
    GM Inside News
    Advertisements
     

  3. #2
    Firebird Concept (the turbine one) F14CRAZY's Avatar
    Join Date
    May 2006
    Location
    Grand Rapids, MI
    Posts
    11,898
    Thanks
    263
    Thanked 845 Times in 468 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    man I was thinking everyone would comment on this
    '07 Subaru Forester 2.5X 5MT. Bought new. 197k miles. '05 Dodge Durango Limited Hemi AWD. Mom bought new. 102k miles. '74 Buick LeSabre Luxus convertible. 455-4/7.5L. '89 Buick Reatta. 3800 SII L67/F40 six speed swap to be completed someday. Wife's: '07 Subaru Forester XT. World Rally Blue Mica.

    '87 BMW K75c. '87 Kawasaki 650SX. '85 Bayliner Capri 1952. '71 Chris Craft Coho 33'. '70? Amphicat 6x6 AATV.

  4. #3
    GMI Australia Correspondent Premium Member mikmak's Avatar
    Join Date
    May 2005
    Location
    Sunshine Coast, Australia
    Posts
    18,165
    Thanks
    1,132
    Thanked 933 Times in 639 Posts
    My Ride
    Piece of **** Subie Liberty

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    It may have had more to do with everyone that saw your thread is now on the floor convulsing in previously repressed acid flashbacks



    This should send them back again
    Evil begets evil Mr. President. Shooting will only make it stronger.

    Hidden Content

    Follow me on Hidden Content
    I'm on the YOUTUBES! Hidden Content

  5. Remove Advertisements
    GM Inside News
    Advertisements
     

  6. #4
    GMI Australia Correspondent Premium Member mikmak's Avatar
    Join Date
    May 2005
    Location
    Sunshine Coast, Australia
    Posts
    18,165
    Thanks
    1,132
    Thanked 933 Times in 639 Posts
    My Ride
    Piece of **** Subie Liberty

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    Oh and nice effort too. You seem to have a pretty handy talent when it comes to just about anything mechanical.
    Evil begets evil Mr. President. Shooting will only make it stronger.

    Hidden Content

    Follow me on Hidden Content
    I'm on the YOUTUBES! Hidden Content

  7. #5
    News Contributor 91 s-10baja's Avatar
    Join Date
    Sep 2003
    Location
    Kirkland, WA
    Posts
    6,295
    Thanks
    23
    Thanked 279 Times in 126 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    Holy crap that thing is killer. Is it really 6x6, or does it simply look it.
    I forgot about the banana splits, holy flash back
    Hidden Content

    My Rides (2013 Chevrolet Volt, 1991 Chevrolet S-10 Baja):
    Hidden Content
    @Testdrivejunkie
    "I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming." - Mitch Hedberg ...

  8. #6
    News Contributor 91 s-10baja's Avatar
    Join Date
    Sep 2003
    Location
    Kirkland, WA
    Posts
    6,295
    Thanks
    23
    Thanked 279 Times in 126 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    on a side note remember the 'amphicar's?

    Hidden Content

    My Rides (2013 Chevrolet Volt, 1991 Chevrolet S-10 Baja):
    Hidden Content
    @Testdrivejunkie
    "I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming." - Mitch Hedberg ...

  9. #7
    4.6 Liter Northstar V8 rhvfd10's Avatar
    Join Date
    Jul 2006
    Location
    Douglas County, NV & UC Davis, CA
    Posts
    1,924
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    Snorky, Fleagle, Bingo, Drooper....

  10. #8
    GMI Australia Correspondent Premium Member mikmak's Avatar
    Join Date
    May 2005
    Location
    Sunshine Coast, Australia
    Posts
    18,165
    Thanks
    1,132
    Thanked 933 Times in 639 Posts
    My Ride
    Piece of **** Subie Liberty

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    If you haven't played the theme song yet, don't. 2 days I've been going tra la la lalala la, tra la la lala la.
    Evil begets evil Mr. President. Shooting will only make it stronger.

    Hidden Content

    Follow me on Hidden Content
    I'm on the YOUTUBES! Hidden Content

  11. #9
    R2-D2 Astromech Droid Bravada's Avatar
    Join Date
    Nov 2004
    Location
    Warsaw, Poland
    Posts
    17,579
    Thanks
    1
    Thanked 7 Times in 4 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    I happen to have been given, as a little kid, a 1970/1971 Auto Katalog (Germany's publication covering everything made in a given year that remotely resembles a car by my grandmother. I was thorughly fascinated by the then-in-vogue beach buggies, but the Amphicat was my no. 1 thingy to dream about having. Gosh, they have to be so much fun!

  12. #10
    4.4 Liter Supercharged Northstar bouda's Avatar
    Join Date
    Nov 2005
    Location
    St.Paul
    Posts
    2,568
    Thanks
    0
    Thanked 2 Times in 1 Post

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    I saw one of those amphicars here in mn a few years ago.

  13. #11
    Firebird Concept (the turbine one) F14CRAZY's Avatar
    Join Date
    May 2006
    Location
    Grand Rapids, MI
    Posts
    11,898
    Thanks
    263
    Thanked 845 Times in 468 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    haha I've read about the banana splits having those but never saw any footage except for the intro...a bit before my generation . Check out the two stroke smoke lol
    '07 Subaru Forester 2.5X 5MT. Bought new. 197k miles. '05 Dodge Durango Limited Hemi AWD. Mom bought new. 102k miles. '74 Buick LeSabre Luxus convertible. 455-4/7.5L. '89 Buick Reatta. 3800 SII L67/F40 six speed swap to be completed someday. Wife's: '07 Subaru Forester XT. World Rally Blue Mica.

    '87 BMW K75c. '87 Kawasaki 650SX. '85 Bayliner Capri 1952. '71 Chris Craft Coho 33'. '70? Amphicat 6x6 AATV.

  14. #12
    6.2 Liter LS9 Supercharged V8 big swede's Avatar
    Join Date
    Sep 2003
    Posts
    8,774
    Thanks
    303
    Thanked 825 Times in 417 Posts
    My Ride
    Scat Pack Shaker

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    Those things are too cool. I always wanted to try one out but never got the opportunity. How do they turn because it looks like the wheels always stay straight. I guess the motor slows down the wheels on one side? I bet that does some wicked damage to the front lawn

  15. #13
    Firebird Concept (the turbine one) F14CRAZY's Avatar
    Join Date
    May 2006
    Location
    Grand Rapids, MI
    Posts
    11,898
    Thanks
    263
    Thanked 845 Times in 468 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    It turns like a skid steer loader/Bobcat, with power going to one side and you applying the brake to the other side...two handles, with a brake and clutch on each side. I try not to steer hard on the grass but its pretty light and doesn't do any real damage
    '07 Subaru Forester 2.5X 5MT. Bought new. 197k miles. '05 Dodge Durango Limited Hemi AWD. Mom bought new. 102k miles. '74 Buick LeSabre Luxus convertible. 455-4/7.5L. '89 Buick Reatta. 3800 SII L67/F40 six speed swap to be completed someday. Wife's: '07 Subaru Forester XT. World Rally Blue Mica.

    '87 BMW K75c. '87 Kawasaki 650SX. '85 Bayliner Capri 1952. '71 Chris Craft Coho 33'. '70? Amphicat 6x6 AATV.

  16. #14

    Join Date
    Aug 2009
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Smile Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    Quote Originally Posted by F14CRAZY View Post
    I actually picked this up like 4 years ago in Wisconsin. The owner had it apart but everything seemed ok, so I put it back together. I couldn't get the original Sachs 277 cc two stroke motor to run consistently so I picked up a Honda GX390, 13 hp 4 stroke slightly used on ebay and a new Comet clutch. Its been like 4 years in the making but I've finally got it pretty well figured out with a few new chains and sprockets (there's a lot of them)

    This thing's around a 1970...it's an amphibious ATV though I also think of it as being an American ATV...back then the Japanese were the ones that brought us good dirt bikes, 3, and 4 wheelers...we had boats with wheels. It's made of Borg Warner "Cycolac", aka ABS. The drivetrain and axles are on a steel frame inside the tub so the plastic isn't really exposed to forces. You've got two sticks and a throttle, with the sticks controlling a small transmission with brakes and clutches inside and a centrifugal clutch on the motor (CVT, like a snowmobile, go kart, etc) The Firestone tires have a max rating of 2 PSI...you can push them in pretty far with your foot.

    And it will go anywhere. I'm working on the video footage but I've driven over fallen logs, steep ditches...its pretty sweet obviously with 6 wheel drive, crazy approach and departure angles, and a really low center of gravity. It's really slow in the water just using wheel power (like 2 mph at full blast). I need to work on it some more but I've added an outboard motor mount so I can at least use a trolling motor. It isn't too heavy...I can pick up one side of it so its not bad to trailer with my Forester.

    It's pretty sweet having traction and torque...I was able to pull in the fishing boat in a great show of power lol. It's fast enough though...I can pull the leaf and clippings sweeper around the yard a lot faster than the mowing tractor can. It's crazy fun.

    It's like unstoppable as long as your have the courage to shove the sticks forward. A lot of these old 6x6's didn't have reverse but this one does so you can get out of nasty spots. The Amphicat was one of the better ones and they're somewhat common as far as these go. A lot of these things were cheaply engineered (and thus they're not around anymore). All the chains and sprockets eventually do wear out and are tedious to replace. The ABS isn't that think and can be broken if you hit something. They often had hollow axles which are a common thing to have to fix on old 6x6's but the Amphicat's got forged axles. I have brand new seals for it which I'm going to put in soon to stop the slow seeping. It's said that they're "impossible" to sink due to the air in the tires, but nevertheless I wear a life jacket when crossing the lake (30-some acres)

    Argo and Recreatives Industries still make 6x6's (and 8x8's).

    Haven't tried them but I've also got an original set of snow tracks for it.

    The pix and upcoming footage are from our cottage on Eagle Lake in Mancelona, MI, shot by my bro, with his Canon D30 (I think)





    I didn't hit the water very fast...it'll make a lovely splash at full blast but won't really get you wet





    Mines more fun,. hehehe try 12 tires,,,,,, and i have 2 sets of tracks too...
    Last edited by Amphiman1; 08-21-2009 at 09:52 AM.

  17. #15
    6.2 Liter LS9 Supercharged V8 chakis24's Avatar
    Join Date
    Sep 2006
    Location
    U.S.
    Posts
    6,105
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Hardcore offroader: '70 Amphicat 6x6 AATV

    that things a pretty cool little toy.
    My Ride: 2005 Chevy Silverado Z71
    3" P.A. Body lift, 305/70/17 Nitto Terra Grapplers, 17x9 Pro Comp Wheels, Halo Projector headlights w/ HID hi's, PIAA P4000 Quattro fogs, Hyper White LED DRL's, Putco Locker Black Bed Rails, Pace Edwards: Jack Rabbit tonneau, Fire & Ice LED light bar, "Patriot" window decal, Flowmaster muffler, iPOD jack,

  18. Remove Advertisements
    GM Inside News
    Advertisements
     

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.1.2