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Idea I have had but never seen attempted

Discussion in 'Motorcycle Talk' started by WaGigKPN, Oct 31, 2012.

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  1. Oct 31, 2012 #1
    WaGigKPN

    WaGigKPN

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    I loved my XR650L but disliked the lack of power and the constant Thumping...

    I thought it would be a great platform to put a CBR600F4i engine in it! I tried searching and couldn't find anyone who put a 600 inline 4 engine in a dirt bike frame...

    Things that i can think of that would need to be addressed:
    Engine mounts/fitting engine in frame
    Shuring up the frame to handle the extra weight/power
    Transmission/gearing due to higher rpm and extra power. (maybe addressed by different sized sprockets?)
    Lining up the sprockets

    With the open layout of a dirt bike frame i would think this would be doable...People to it to quads and go carts and those have less room to work with...

    I doubt a small person would be able to handle such a beast but at 6'7'' and 300lbs i think i could handle it...
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  3. Oct 31, 2012 #2
    shelbyguy

    shelbyguy Picture Whore

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    answer-

    husaberg fs570 with big bore
     
    shelbyguy, Oct 31, 2012
    shelbyguy, Oct 31, 2012

  5. Oct 31, 2012 #3
    WaGigKPN

    WaGigKPN

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    Didn't realize they could make a single cylinder put out like an inline 4...
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  6. Oct 31, 2012 #4
    Avboden

    Avboden

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    hill climbers do it all the time.

    [​IMG]
     
    Avboden, Oct 31, 2012
    Avboden, Oct 31, 2012
  7. Oct 31, 2012 #5
    WaGigKPN

    WaGigKPN

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    Thank you! Avb! Kinda surprised it wasn't a BMW bike you posted...

    Any video's of one of these beasts in action?
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  8. Oct 31, 2012 #6
    strangerin

    strangerin

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    BMW riders have more sense
     
    strangerin, Oct 31, 2012
    strangerin, Oct 31, 2012
  9. Oct 31, 2012 #7
    Avboden

    Avboden

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    Last edited: Oct 31, 2012
    Avboden, Oct 31, 2012
    Avboden, Oct 31, 2012
  10. Oct 31, 2012 #8
    Avboden

    Avboden

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    Avboden, Oct 31, 2012
    Avboden, Oct 31, 2012
  11. Oct 31, 2012 #9
    WaGigKPN

    WaGigKPN

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    Yeah...That hit the spot on a rainy Wednesday...I want one...
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  12. Oct 31, 2012 #10
    shelbyguy

    shelbyguy Picture Whore

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    the big bore 570 motor will make damn near same hp +/- 15hp, chances are same if not more tq

    (than a 600f4i motor)
     
    shelbyguy, Oct 31, 2012
    shelbyguy, Oct 31, 2012
  13. Oct 31, 2012 #11
    WaGigKPN

    WaGigKPN

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    I seriously want to do this...If i make lots of money i am doing this...

    Not for hill climb tho...just a fun trail machine! maybe even make it a daily driver...
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  14. Oct 31, 2012 #12
    koorbloh

    koorbloh Je Fa Fa

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    I've never been on a trail of any sort, where I was like "man, I need 100 hp, but all at the top, and make my bike heavier and wider too"

    but, I don't really get to ride all that much, so maybe I'm unique?
     
    koorbloh, Oct 31, 2012
    koorbloh, Oct 31, 2012
  15. Oct 31, 2012 #13
    Xmxer

    Xmxer

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    There is no way to get near the power of an inline 4 with a single. And when you try your reliability will go right out the window. I ride quads in the dunes and have built so many big bore, ported, custom cammed, etc motors and just when they start to get fast they will blow up very quickly. I learned my lessons and put a GSXR fuel injected motor into my latest quad and let me tell you 160 HP is absolutely ridiculous offroad.
     
    Xmxer, Oct 31, 2012
    Xmxer, Oct 31, 2012
  16. Oct 31, 2012 #14
    WaGigKPN

    WaGigKPN

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    do you weigh 300 lbs and dirt bikes feel like bmx bikes to you?

    And Yes, When i had my XR off road i was thinking i wanted high rpm power...
     
    Last edited: Oct 31, 2012
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  17. Oct 31, 2012 #15
    koorbloh

    koorbloh Je Fa Fa

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    6'4" 250, so. basically, yes
     
    koorbloh, Oct 31, 2012
    koorbloh, Oct 31, 2012
  18. Oct 31, 2012 #16
    WaGigKPN

    WaGigKPN

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    Chicken! :nana
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  19. Oct 31, 2012 #17
    KevinD

    KevinD Modulator Staff Member

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    You're not (unique, in this sense, anyway.)

    I think the increased size & weight would offset any advantages on the trail.



    KevinD
     
    KevinD, Oct 31, 2012
    KevinD, Oct 31, 2012
  20. Oct 31, 2012 #18
    WaGigKPN

    WaGigKPN

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    Totally agree that on tight technical trails it would not improve the performance...

    who am i to say it will have any advantage over a regular dirt bike at all!???

    If i had one i would use it as a dual sport...maybe SM...That's what i tried with my XR but lack of street power and vibration (even with street tires on it) made commuting a nightmare! Made me think if that bike had an inline 4 it would be my dream bike.
     
    WaGigKPN, Oct 31, 2012
    WaGigKPN, Oct 31, 2012
  21. Oct 31, 2012 #19
    Sentor

    Sentor

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    6'7" 300 pounds? Damn, I can see why you'd definitely want something more.
     
    Sentor, Oct 31, 2012
    Sentor, Oct 31, 2012
  22. Oct 31, 2012 #20
    theJrod

    theJrod Racer Extraordinaire

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    There's almost no room for the radiator, and most hillclimb bikes run without the rad since they only run for 30 seconds at a time (or they use aircooled engines).

    IMO, the 650L is a very tame bike. ANY of the newer, high performance dirt bikes will give you the oomph you're looking for. A 4-cyl streetbike engine still won't have instance throttle response and low-mid torque that any 500+cc Husky/Husa/KTM will give you.
     
    Last edited: Oct 31, 2012
    theJrod, Oct 31, 2012
    theJrod, Oct 31, 2012
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