1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Pinned So what have you done to your bike today?

Discussion in 'The Pub' started by kiffsta, Nov 3, 2013.

  1. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,102
    Likes Received:
    3,472
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    O-rings are sized by ID & cross section. The appropriate size is calculated according to a whole host of variables, and there are online calculators that can help with that.
     
    • Like Like x 3
  2. Gizziracer

    Gizziracer Well-Known Member Contributing Member

    Messages:
    387
    Likes Received:
    251
    Trophy Points:
    273
    Joined:
    May 7, 2017
    Location:
    Sydney
    My Bike:
    Honda vt 250 spada
    Just about completed the last of my 3 Spada projects.

    From this

    F5EB832D-FAA8-4683-BF36-A22C15685A47.jpeg

    to this

    FF45E50B-143E-4900-BEC5-05B938AB6244.jpeg 017C5C10-BBC8-45CE-89AE-5E33270B265E.jpeg
     
    • Nice Work Nice Work x 4
    • Like Like x 3
    • Winner Winner x 1
    • Looks good! Looks good! x 1
  3. jmw76

    jmw76 Well-Known Member

    Messages:
    1,151
    Likes Received:
    585
    Trophy Points:
    498
    Joined:
    Mar 12, 2017
    Gender:
    Male
    Location:
    Melbourne, Australia
    My Bike:
    Honda cbr250rr mc22 road + 1 track, Honda RC 162 tribute bike, Honda Spada Vt250, Honda CBR900RR
    much better.
     
    • Agree Agree x 2
  4. kiffsta

    kiffsta Senior Member

    Messages:
    9,066
    Likes Received:
    6,872
    Trophy Points:
    1,168
    Joined:
    Aug 7, 2010
    Gender:
    Male
    Location:
    Brisbane
    Lovely, awesome job
     
    • Agree Agree x 1
  5. thebeefsalad

    thebeefsalad Well-Known Member

    Messages:
    490
    Likes Received:
    301
    Trophy Points:
    273
    Joined:
    Feb 28, 2015
    Gender:
    Male
    Location:
    San Antonio, Texas USA
    I was basing my selection on ID, OD, and recess. Where ID of the oring must be larger than ID measured, OD must be smaller than OD measured, and cross-section diameter must be larger than recess.

    Now it sounds like I may have been going the wrong direction with that selection method. So far the calculators I've found have made my brain hurt :( but I just realized I was looking at piston application instead of axial face calculator.
     
    • Like Like x 1
  6. jmw76

    jmw76 Well-Known Member

    Messages:
    1,151
    Likes Received:
    585
    Trophy Points:
    498
    Joined:
    Mar 12, 2017
    Gender:
    Male
    Location:
    Melbourne, Australia
    My Bike:
    Honda cbr250rr mc22 road + 1 track, Honda RC 162 tribute bike, Honda Spada Vt250, Honda CBR900RR
    You are over thinking the problem. Purchase a few different sizes. They are cheap. Then go with the one that appears to give the best seal.
     
  7. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,102
    Likes Received:
    3,472
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    • Like Like x 2
  8. ShaneP

    ShaneP Well-Known Member

    Messages:
    2,574
    Likes Received:
    1,101
    Trophy Points:
    798
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    Monday I got a roadworthy on the VFR, yesterday I got a roadworthy on the VTR, today I registered both. Nearly $600 later, guess who is eating nothing but rice this month! Better sort my insurance, too
     
    • Like Like x 1
  9. jmw76

    jmw76 Well-Known Member

    Messages:
    1,151
    Likes Received:
    585
    Trophy Points:
    498
    Joined:
    Mar 12, 2017
    Gender:
    Male
    Location:
    Melbourne, Australia
    My Bike:
    Honda cbr250rr mc22 road + 1 track, Honda RC 162 tribute bike, Honda Spada Vt250, Honda CBR900RR
    Bloody hell!!!!
    If you were in Melbourne you would be paying over $520 just to register one bike and that's for a 250. Much more for a bigger bike.
    Think yourself lucky!
     
  10. ShaneP

    ShaneP Well-Known Member

    Messages:
    2,574
    Likes Received:
    1,101
    Trophy Points:
    798
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    6 months rego, single seater, stamp duty and plates. The second seat is $180/year, and that is all CTP. Car rego goes up with the number of cylinders, not sure if 6-cylinder bikes do, too
     
  11. jmw76

    jmw76 Well-Known Member

    Messages:
    1,151
    Likes Received:
    585
    Trophy Points:
    498
    Joined:
    Mar 12, 2017
    Gender:
    Male
    Location:
    Melbourne, Australia
    My Bike:
    Honda cbr250rr mc22 road + 1 track, Honda RC 162 tribute bike, Honda Spada Vt250, Honda CBR900RR
    Oh. The rego fee I quoted is the annual renewal. For a new rego you have stamp duty and plate fees on top of that.

    For a new bike rider in Victoria it gets very expensive by the time you factor in testing and licence costs. Than you have purchase all of your protective gear.
     
    • Agree Agree x 1
  12. thebeefsalad

    thebeefsalad Well-Known Member

    Messages:
    490
    Likes Received:
    301
    Trophy Points:
    273
    Joined:
    Feb 28, 2015
    Gender:
    Male
    Location:
    San Antonio, Texas USA
    Peed myself a bit. BK Performance came through with more parts :Drool:. Have to move funds around before I can pay for it, then starts the ever so painful wait for transit.
     
    • Funny Funny x 1
  13. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,102
    Likes Received:
    3,472
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    Sorry, for some reason I did not see this. The sizes you first quote are 2.5 & 2.0 cross section. Impex usually have the lowest prices for OEM parts.
     
    • Like Like x 1
  14. thebeefsalad

    thebeefsalad Well-Known Member

    Messages:
    490
    Likes Received:
    301
    Trophy Points:
    273
    Joined:
    Feb 28, 2015
    Gender:
    Male
    Location:
    San Antonio, Texas USA
    My wallet might thank you if I've found the Impex you are talking about. https://en.impex-jp.com/ Shipping might kill any savings. o-rings I'm hunting are for an aftermarket part. impex may have them but I'll have to order more than just o-rings since shipping starts at $21US
     
  15. thebeefsalad

    thebeefsalad Well-Known Member

    Messages:
    490
    Likes Received:
    301
    Trophy Points:
    273
    Joined:
    Feb 28, 2015
    Gender:
    Male
    Location:
    San Antonio, Texas USA
    And this sent me down a rabbithole :( I've always thought the MC22 should have a 4 into something into 4 exhaust which as far as I can tell would have to be a custom one-off. Started browsing yahoo japan and they have 4 into 2 into 2! But it's for a Jade so I'm not sure mounting would work out.
    https://page.auctions.yahoo.co.jp/jp/auction/p798893431
     
  16. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,102
    Likes Received:
    3,472
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    Check out the exhausts on @jmw76 RC162 replica.
    Probably cheaper to have one made locally. If I were doing a custom 4 into 4, I would do this.
    • 4 mufflers modelled on the RC162. The Conti mufflers used on early Ducati bevel drive twins have very similar appearance and a baffle design that is not too loud but retains a great sound. So in short, 4 baby Conti's. I used to have the cones rolled and gas weld them all myself when I was a youngster. You could go full project Binky and use cardboard to make mock ups first.
    • 4 into 2 into 4 might be optimal or just 4 into 4 with a balance pipe across the headers is another approach
    • I would have short headers
    In the US you can buy exhaust bends and collectors at the corner store, like everything else. The OEM pipes are 1-1/8" which won't be common, so okay, I guess you won't get them at 7-11. Even if you can't weld them yourself, you can fit, cut and tack. Then take to proficient welder and finally have them Cerakoted in black (or just spray with VHT) tada :)
     
    • Like Like x 1
    • Love it! Love it! x 1
    Last edited: Apr 16, 2021
  17. Gen

    Gen Well-Known Member

    Messages:
    324
    Likes Received:
    330
    Trophy Points:
    273
    Joined:
    Aug 16, 2014
    Gender:
    Male
    Location:
    50 K's from South Australia, in NSW
    My Bike:
    blown CBR250r
    32mm stainless handrail mandrel bend exhaust

    Salt 2015 030.JPG
     
    • Like Like x 7
  18. ShaneP

    ShaneP Well-Known Member

    Messages:
    2,574
    Likes Received:
    1,101
    Trophy Points:
    798
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    I'm with @maelstrom, shorter headers for top end power, right? Or did you find something different in your testing, @Gen?
     
  19. jmw76

    jmw76 Well-Known Member

    Messages:
    1,151
    Likes Received:
    585
    Trophy Points:
    498
    Joined:
    Mar 12, 2017
    Gender:
    Male
    Location:
    Melbourne, Australia
    My Bike:
    Honda cbr250rr mc22 road + 1 track, Honda RC 162 tribute bike, Honda Spada Vt250, Honda CBR900RR
    Shorter headers. Well that depends on how short you make them. Yes, shortening them does shift the resonant frequency to higher rpm. But no point shift that point beyond the capability of the engine. Also 4 into 1 works best for absolute peak power but 4-2-1 works best for a decent spread of power. Individual pipes look great but can only deliver best performance as a megaphone system which generates lots of noise.
     
  20. Gen

    Gen Well-Known Member

    Messages:
    324
    Likes Received:
    330
    Trophy Points:
    273
    Joined:
    Aug 16, 2014
    Gender:
    Male
    Location:
    50 K's from South Australia, in NSW
    My Bike:
    blown CBR250r
    I made the headers the same length as the stock MC19's, The supercharger threw the power band out the window, & pulled like real bike when the throttle was opened in anger, regardless of the rpm, although it was all over red rover @ 16,300 (indicated) rpm, probably due to the blower's ability to keep up,,:idk:
    The video tells the bottom end story better than mere words (hornet cams increased the boost from 8/10 lb, to 15 lb boost due to the lack of valve overlap, whenever the throttle was open, the boost gauge went up, regardless of the rpm)
     
    • Like Like x 4

Share This Page