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Project Project 162 - RC162 replica

Discussion in 'Your 250cc Projects' started by jmw76, Jan 20, 2019.

  1. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Great work. Be nice if you could move the tank forward.
     
  2. jmw76

    jmw76 Well-Known Member

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    I did think about that, but then it stuffs around with the general look. If you have a look at the original RC162 (earlier pics in thread) you will notice that Mr Honda has quite a considerable gap between headstem and tank. It is all mostly covered when the fairing is in place. Also pulling the headstem back would have given me a front wheel to engine clearance issue. It is already reasonably tight in this area.
     
  3. jmw76

    jmw76 Well-Known Member

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    Also, when the frame is painted black it will take your sight away from the gap. The real solution would have been to source a longer tank. But that sort of defeats the original intention to build as much as possible from the Skyteam ACE and the MC19 that I started with. I think I will call the build an RC-ACE162 to pay tribute to its roots.
     
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  4. jmw76

    jmw76 Well-Known Member

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    Sorted out the mounting for the front guard now.
    SAM_3975.jpg SAM_3976.jpg
     
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  5. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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  6. jmw76

    jmw76 Well-Known Member

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    Wow, That is an interesting price expectation.
     
  7. jmw76

    jmw76 Well-Known Member

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    My Bike:
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    Had a visit from @Frankster today. to inspect the RC-ACE162.

    An opportunity to explain all the little engineering challenges that I have had to solve throughout the build and to show off my handy work.

    All going well, I will be able to get the exhaust system fabricated over the following weekends ready for its first track shakedown at Broadford in a couple of months time.

    I also need to sort out rear springs/shocks and tyres.
    Anyone have any experience with these https://www.ebay.com.au/itm/330mm-E...c7fad273d341c3a3151a1c35f37912&frcectupt=true

    The bike only weighs about 120kg. I need something a bit stiffer than the ACE shocks but that looks sort of period and has some level of adjustability.

    Tyres are most likely going to be Pirelli City Demons as the wheel/rim size limits my choices somewhat.

    I will post the shakedown date when the bike is ready.

    Peter.
     
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  8. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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  9. jmw76

    jmw76 Well-Known Member

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    My Bike:
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    Needed a way to quickly and accurately cut out the steel sheet parts to make up my megaphone exhausts.
    Made a low cost nibbler bench by mounting a cheap drill based nibbler to the underside of an old table.
    It is cuts fast and is easy to move the sheet around the cutting area. A bit like a band saw but a lot safer and produces a very clean cut.
    It doesn't look flash but it works.
    SAM_3996.JPG SAM_3997.JPG SAM_3998.JPG
     
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  10. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Nice work, just watch out for all the half moon swarf, lol
     
  11. jmw76

    jmw76 Well-Known Member

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    Yes.
    Those little half moon bits are the biggest negative. They get stuck in the soles of your shoes.
    A large bin directly below the table catches the majority of them.
     
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  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    How are you going to roll the megaphones?
     
  13. jmw76

    jmw76 Well-Known Member

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    My Bike:
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    Made a little progress on the exhaust system over the weekend. The megaphones have been fabricated in 0.8mm steel.
    Rolled the megaphones using my little 300mm combo guilotine, folder, roller machine (that is why there is a seem in the middle of the cones) and finished of by hand bending around a wooden former that I turned up.
    The header pipes are cut and shut from the old MC19. A bit more tidying up is still needed. IMG_20190915_185055.jpg IMG_20190915_185122.jpg IMG_20190915_185301.jpg
    Frame is fully painted now also.
    That first track day shakedown is fast approaching.
     
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  14. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Great work. The CV carbs might be a bit of a nightmare without the airbox.
     
  15. jmw76

    jmw76 Well-Known Member

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    I suppose I will find out soon enough whether or not I can get the CV carbs to work effectively without an airbox. Others seem to have made them work. I have a good supply of jets to play with.
     
  16. jmw76

    jmw76 Well-Known Member

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    I am more concerned about whether or not my frame geometry is going to work, without it being unstable at speed.
     
  17. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    If you have enough trail I am sure it will be fine.
     
  18. jmw76

    jmw76 Well-Known Member

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    Target design for the rake was about 24-25 degrees which is what the Mc22 runs. During fabrication, things changed a little and I think I am now around 21-23 degrees.
     
  19. jmw76

    jmw76 Well-Known Member

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    A quick comparison measurement against my MC22 track bike. The angle of the front forks are within about 1/2 degree of each other. It should be fine.:D
     
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  20. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    When Alan Millyard could not get the CV carbs on his 6 cylinder FZR engine in his RC164 copy running right he bought six Mikuni copy (Chinese made) slide carbs and fitted them. Look more authentic too.
     
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