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Author Topic: Jag 9000 six cylinder  (Read 1284 times)

Cat-Power

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Jag 9000 six cylinder
« on: April 25, 2017, 03:26:00 AM »
Well, I've decided to really commit to my next custom after completion of the airsled. Ive been doing quite a bit a research on it, and I've settled on a design and concept. I am linking 3 jag 3000 motors together via a custom sprocket/chain assembly on a single plate made from Kawasaki twin plates. I didn't have the money to have custom CNC sprockets made, so I came up with my own solution of using the stationary sheave from arctic cat hex clutches turned down on a lathe and then welding on a sprocket hub for farm equipment. I'll post images once they're done.  For the chassis I intend to use a 78 jag with an 81 rubber track and stretch the bulkhead. I've already constructed the throttle linkage. The engines will be mostly stock with the intake ports opened up, exhausts polished, and burs taken off. Exhaust will be 6 GEM megaphones instead of the untuned straight pipe in the can these jags used stock.  I'll start getting pictures up as progress is made.
1993 Yamaha Vmax 4 750
1975 Arctic Cat Cheetah 340
1971 Arctic Cat Puma 395
1971 Arctic Cat Panther 634
1970 Arctic Cat Panther 440
Arctic Cat Aero Kat 594

Vintagesleds.com

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    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #1 on: April 25, 2017, 03:34:20 AM »
    Here's a pic of the engines just mocked up on the plates to figure out spacing
    « Last Edit: April 25, 2017, 02:30:24 PM by Cat-Power »
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    chris r

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    Re: Jag 9000 six cylinder
    « Reply #2 on: April 25, 2017, 11:59:09 AM »
    Oh boy.  ;D

    I'll assume you'll be starting these engines one at a time.

    One comment on farm sprockets: The last few years I have a guy who brings me sprockets to modify and he's telling me that the cheap chinese stuff doesn't hold up for his combines. My work experience shows that our imported steel alloys aren't consistent and you could find a issue related to that. I don't know personally if there are any options for parts like that being made in USA or not, but something to consider maybe.
    I'd rather eat crumbs with bums than eat steaks with snakes.

    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #3 on: April 25, 2017, 02:29:43 PM »
    Hmmmm, well that's good to know about the sprockets. I'm not too concerned about wear as this thing will have VERY low runtime, but that's good to keep in mind. Also, all the engines will be started simultaneously off one recoil since they are going to be "timed" as to minimize vibration. It'll be a bear to pull, but it won't be much worse than the 300lb total compression of my JLO 592 opposed  haha
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    chris r

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    Re: Jag 9000 six cylinder
    « Reply #4 on: April 25, 2017, 04:48:04 PM »
    Recoil drive dogs be able to handle that?
    I'd rather eat crumbs with bums than eat steaks with snakes.

    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #5 on: April 25, 2017, 11:04:32 PM »
    Well, I think they'll take it. The spirit recoil is a whole lot better than most of the earlier stuff. Plus the way I'm going to time it will only have one piston at TDC at a time, so the load at any given moment on the recoil will be constant and not a whole ton more than with just one engine. If I decide that 1 recoil cant take it, Ill have two recoils on it and just pull em both at once
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    chris r

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    Re: Jag 9000 six cylinder
    « Reply #6 on: April 26, 2017, 11:05:32 AM »
    This will be a cool project. Looking forward to seeing it progress.  :)
    I'd rather eat crumbs with bums than eat steaks with snakes.

    theSLEDwhisperer

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    Re: Jag 9000 six cylinder
    « Reply #7 on: April 26, 2017, 12:41:27 PM »
    I really enjoyed your last build and sure do look forward to this one. Amaking stuff your doing.
    "These things break just by looking at em'..." - KA
    "I better put a few bolts in it." - TC
    PETT # 101 - Air Assault!

    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #8 on: May 18, 2017, 05:23:10 PM »
    Progress update. Things are moving slowly, but are moving nonetheless. I got all three engines torn apart and got all of the parts I need to rebuild them, so components went to the sandblaster yesterday. ( I really should buy one of those)  I also got all my amateur port work done, and I think it turned out decent, I didn't realize just how long it takes just to do one cylinder, let alone 6. I cant even imagine how long it takes if you do extensive and elaborate  porting. Ill post pics when I get them back. I've also settled on a color scheme of black, blue, and polished metal. I might go pick up a chassis this week if time allows. That bulkhead is going to be a heap of fab work. Additionally, I was thinking about what clutches I should use and I'd love some input. I was thinking maybe a Polaris P85 or a comet 102 with a newer secondary. Another thought I had was to keep it all period/manufacturer appropriate and use a cat Hex and stock secondary, but I don't know how much power that can safely handle.
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    wankel303

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    Re: Jag 9000 six cylinder
    « Reply #9 on: May 18, 2017, 06:01:38 PM »
    I am always thoroughly amazed at what you guys can build.  Sounds like you're building the big brother to this bird:





    or this one:



    Found here:

    http://vintagesleds.com/bs/index.php?topic=35409.0

    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #10 on: June 02, 2017, 02:09:27 AM »
    Alright, engines are all rebuilt.  Changed my mind, went red and black on it, the paint turned out great on the engines, pic doesn't show it very well. Also picked up a chassis, it's a 77 jag. Still waiting on sprockets, and I need those to build the bulkhead and motor plate.
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    Cat-Power

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    Re: Jag 9000 six cylinder
    « Reply #11 on: June 02, 2017, 02:17:18 AM »
    Also, here's what I did to all the intakes, widened them a little and took out some of the overhang but left a retainer as the ring gap is behind that, and honed the divider. I figure it's about15% more opening on each port
    1993 Yamaha Vmax 4 750
    1975 Arctic Cat Cheetah 340
    1971 Arctic Cat Puma 395
    1971 Arctic Cat Panther 634
    1970 Arctic Cat Panther 440
    Arctic Cat Aero Kat 594

    chris r

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    Re: Jag 9000 six cylinder
    « Reply #12 on: June 02, 2017, 11:39:02 AM »
    I like the painted engines.  :)
    I'd rather eat crumbs with bums than eat steaks with snakes.

    DJS800

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    Re: Jag 9000 six cylinder
    « Reply #13 on: June 07, 2017, 05:23:37 PM »
    Hmmmm???? Have you thought about a belt drive and electric start to time and start all 3 at once?? Here is what I was thinkin, (maybe it will help.. maybe not) change out the starter cup with timing pulleys, use a cogged belt to time them and on the center motor use a electric start.. Just a idea.. I cant wait to see the hood.. more pics too please..