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Tractor Pulling question (VIDEO)

BLKSRT8BLKSRT8 Member Posts: 631 ✭✭✭✭
edited March 2015 in General Discussion
Watch the video's below. How the hell do they hook up 5 3000HP+ blown engines together to one axle. Even when they are pointed in different directions?? How do they do it?

https://www.youtube.com/watch?v=uS6yIBVzRio

Look at this one at around 7:10. How are these connected to a axle??

https://www.youtube.com/watch?v=Auul9saBZoU
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Comments

  • andrewsw16andrewsw16 Member Posts: 10,728 ✭✭✭
    edited November -1
    A BIIIIIGG box of universal joints?
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  • Ditch-RunnerDitch-Runner Member Posts: 25,375 ✭✭✭✭
    edited November -1
    found this as I have wondered the same thing ,interesting as they walk you thru there tractor
    http://www.tractorpulling.freeserve.co.uk/howit.htm
    just one of there illustrations
    trac5.gif
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  • Dads3040Dads3040 Member Posts: 13,552 ✭✭✭
    edited November -1
    The ones that are in line with each other are directly connected. Then at the rear, you see a black box where the drivelines from the back of the two side sets, and the center engine terminate. Inside the box is a multi-link drive chain. Kind of like those used in transfer cases.
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  • MG1890MG1890 Member Posts: 4,460 ✭✭
    edited November -1
    Multi input gearbox.
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  • discusdaddiscusdad Member Posts: 11,427 ✭✭✭✭
    edited November -1
    lots of miter gears, biggest problem is getting them all turning at the same speed/rpm where 1 isnt slowing the others down.
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  • select-fireselect-fire Member Posts: 69,529 ✭✭✭✭
    edited November -1
    quote:Originally posted by Ditch-Runner
    found this as I have wondered the same thing ,interesting as they walk you thru there tractor
    http://www.tractorpulling.freeserve.co.uk/howit.htm
    just one of there illustrations
    trac5.gif



    I would think they would have to run some sort of oil bathed adjustable clutch setup for each engine.
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  • MobuckMobuck Member Posts: 14,163 ✭✭✭✭
    edited November -1
    It's MAGIC!!


    ^^^^^^^^^^ that's the answer^^^^^^^^^^
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  • Ditch-RunnerDitch-Runner Member Posts: 25,375 ✭✭✭✭
    edited November -1
    there web page goes into more detail and explains a lot this was just one page they have it broken down to many pages ( layers ) of the set up


    quote:Originally posted by select-fire
    quote:Originally posted by Ditch-Runner
    found this as I have wondered the same thing ,interesting as they walk you thru there tractor
    http://www.tractorpulling.freeserve.co.uk/howit.htm
    just one of there illustrations
    trac5.gif



    I would think they would have to run some sort of oil bathed adjustable clutch setup for each engine.
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  • babunbabun Member Posts: 11,038 ✭✭✭
    edited November -1
    quote:Originally posted by select-fire
    quote:Originally posted by Ditch-Runner
    found this as I have wondered the same thing ,interesting as they walk you thru there tractor
    http://www.tractorpulling.freeserve.co.uk/howit.htm
    just one of there illustrations
    trac5.gif



    I would think they would have to run some sort of oil bathed adjustable clutch setup for each engine.


    When the Summers Brothers first made their assault on the land speed record, many years ago, they hooked 4 Dodge 426 hemi's inline together.
    Everybody said the crank shaft to flywheel bolts would sear off because of unbalanced rpm or hp.


    Everyone was wrong ,it worked great.
    Think of it this way.... If the bolts would hold under high rpm and hp of one motor, there could not be a difference of rpm or stress because of another motor's hooked to it. So what if one motor makes
    600 hp and one makes 550? The strain is only 50 hp.

    Clutches are used to allow engine start up and a more smooth power flow, but are not really needed.

    SummersBrosGoldenrod_1000.jpg
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  • LesWVaLesWVa Member Posts: 10,490 ✭✭
    edited November -1
    SCS Gearbox makes gear boxes for running multiple engines.


    BRUCES-GEARBOX-2.jpg

    Dual engine setup.

    10443730_529354040508057_1402073783_n.jpg


    Most of the pullers I have saw run an automatic transmission with a manual trans brake. The brake allows the engine to build RPM's before a pull is started.
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  • montanajoemontanajoe Forums Admins, Member, Moderator Posts: 60,240 ******
    edited November -1
    ...and/or belts & pulleys,,
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  • Ditch-RunnerDitch-Runner Member Posts: 25,375 ✭✭✭✭
    edited November -1
    I know as a kid this one is the one that had me hooked not a tractor but 4 engines 4 wheel drive smokem if ya got em
    god old TV TOMMY
    TommyIvoFourEngineDragster.jpg
    NAT-Ivo_4Eng_LADS_Lahr.jpg
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  • Dads3040Dads3040 Member Posts: 13,552 ✭✭✭
    edited November -1
    Tommy Ivo and Showboat.

    Always liked the look of those Nailhead Buicks.
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  • babunbabun Member Posts: 11,038 ✭✭✭
    edited November -1
    quote:Originally posted by Dads3040
    Tommy Ivo and Showboat.

    Always liked the look of those Nailhead Buicks.


    +10000 !!

    A blast from my teenage past.....

    Vertex mags, orange Packard #440 wires, and Rajay clips for the spark plugs...........a sign you were a serious racer!!

    [8D][8D]
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  • Don McManusDon McManus Member Posts: 23,695 ✭✭✭✭
    edited November -1
    quote:Originally posted by BLKSRT8


    Look at this one at around 7:10. How are these connected to a axle??

    https://www.youtube.com/watch?v=Auul9saBZoU


    That massive aero radial that follows it was nothing short of awesome.
    Freedom and a submissive populace cannot co-exist.

    Brad Steele
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  • wiz1997wiz1997 Member Posts: 1,051 ✭✭
    edited November -1
    Asked the same question years ago.

    Went to a tractor pull in the Astrodome with my nephew's Scout Troop.

    We had pit passes and were able to go down and get close to the tractors.

    Most of them back then that were using several motors, inline and side by side were using hydraulics.

    Each motor had its own hydraulic pump and they all connected to a single hydraulic gearbox that drove the rear tires.

    Looks like they have come a long way since then.

    Ungodly loud, belching fire and smoke, slinging dirt, man was that cool!
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  • wundudneewundudnee Member Posts: 6,108 ✭✭✭
    edited November -1
    There was an old guy near here (NE Ks.) that had a puller with three 427 chevys in it locked end to end. He said they were all timed a little different. He hauled it on an old flatbed truck. I heard rumors that to unload it he would just put the truck in neutral and spin it out from under the tractor. It was pretty farmerized, but it did pull.
    standard.jpg
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  • armilitearmilite Member Posts: 35,490 ✭✭✭
    edited November -1
    Would that all work the same as in the old Hurst 442 that had a engine in the front and one in the trunk [?][?]
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