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PcBuilder's 2014 Honda CRF250L Build

Discussion in 'Other Builds' started by PcBuilder14, Jun 28, 2014.

Page 37 of 51
  1. Jul 17, 2015 at 2:38 AM
    #721
    PcBuilder14

    #721
    PcBuilder14 [OP] Well-Known Member

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    Hard to do that when she can see your bank account! We'll see where we're at financially this Winter...

    Is that all in engine mods???
     
    PcBuilder14, Jul 17, 2015
    #721
  2. Jul 17, 2015 at 2:42 AM
    #722
    Sacrifice

    #722
    Sacrifice Motorcycle Goon

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    Well theres your problem, im keeping mine separate forever! Ha.

    BB, stage 2 cams, valve shims, and 39mm fcr carb
     
    Sacrifice, Jul 17, 2015
    #722
  3. Jul 17, 2015 at 2:47 AM
    #723
    PcBuilder14

    #723
    PcBuilder14 [OP] Well-Known Member

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    Depends on your relationship. Some people get in arguments when they can see everything the other person is buying. But, having a combined account keeps you both more responsible. I don't have anything to hide haha

    Whats the reliability rate on big bore for the DRZ?
     
    PcBuilder14, Jul 17, 2015
    #723
  4. Jul 17, 2015 at 2:51 AM
    #724
    Sacrifice

    #724
    Sacrifice Motorcycle Goon

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    Oh im sure itd keep me more responsible but not happening for me at least.

    Essentially stock reliability from everything ive read. So i wont really have to worry about anything more than i do now and ill be sitting at 45-48hp.
     
    Sacrifice, Jul 17, 2015
    #724
  5. Jul 17, 2015 at 3:12 AM
    #725
    PcBuilder14

    #725
    PcBuilder14 [OP] Well-Known Member

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    Haha understandable.

    There are two 305 big bore kits and a 283. The 283 and one of the 305's is made by B&B cycle who's famous for the Kawasaki big bore he makes for the KLX250SF, while the other 305 is made by Takegawa.

    B&B has had issues with his because the sleeve is different metal then the piston causing them to heat up differently and score the sleeve. Basically have to let it warm up every time before you ride it....

    Takegawa is not ran by as many 250L's but is well known. The sleeve and piston are all the same metal as well, so in theory it shouldn't have the same issues. But also $100 more.
     
    PcBuilder14, Jul 17, 2015
    #725
  6. Jul 17, 2015 at 3:28 AM
    #726
    Sacrifice

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    Sacrifice Motorcycle Goon

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    For only $100 id go with the same sleeve material and definitely 305! No need to switch to iron sleeve these days. How much power will you that net out of it?

    The typical drz bb is a 434, but theres a stroker possibility as well to make it a 470 but thats money at that point.
     
    Sacrifice, Jul 17, 2015
    #726
  7. Jul 17, 2015 at 3:37 AM
    #727
    PcBuilder14

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    PcBuilder14 [OP] Well-Known Member

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    Yeah, I kind of agree...

    Nice... I don't understand too much when it comes valves and porting, which is what people are recommending in conjunction with the cams...

    Current mods have gained about 3hp, cams gain another 3-4, big bore adds about 4, then the cbr throttle body get 1 more hp. Hopefully totaling 28-30hp.
     
    PcBuilder14, Jul 17, 2015
    #727
  8. Jul 17, 2015 at 4:07 AM
    #728
    PcBuilder14

    #728
    PcBuilder14 [OP] Well-Known Member

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    Well, a quick google on valves and porting answered my questions. I'll probably do it if somebody on Thumpertalk does it with good results. Nobody has done it yet but there are a few people planning to down the road. Seems to be in the $300 range....
     
    PcBuilder14, Jul 17, 2015
    #728
  9. Jul 17, 2015 at 4:14 AM
    #729
    Sacrifice

    #729
    Sacrifice Motorcycle Goon

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    I dont plan on porting with the big bore/cams. Only if i planned on stroking it would i.

    Wait i thought your bike started with like 25? So youre saying right now you only have like 20hp at the wheel??
    I know theres a guy that does DRZs, but i wouldnt worry about it honestly. You may gain a hp which isnt much at $300.
     
    Sacrifice, Jul 17, 2015
    #729
  10. Jul 17, 2015 at 4:30 AM
    #730
    PcBuilder14

    #730
    PcBuilder14 [OP] Well-Known Member

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    Haha this thing starts out stock with 17-18 at the wheel.
     
    PcBuilder14, Jul 17, 2015
    #730
  11. Jul 17, 2015 at 4:37 AM
    #731
    Sacrifice

    #731
    Sacrifice Motorcycle Goon

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    [​IMG]

    Jeez what a turd! I cant even imagine, lol. That is better though.
     
    Sacrifice, Jul 17, 2015
    #731
  12. Jul 17, 2015 at 4:43 AM
    #732
    PcBuilder14

    #732
    PcBuilder14 [OP] Well-Known Member

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    Haha yeah it's a low number but a really fun bike and all I really need. I think it fits me well.

    Here is a dyno graph for a bike with FMF exhaust, custom header that adds 1hp over FMF header, EJK tuned, and cams. Red is FMF header, Blue is custom header.

    [​IMG]





    And then here is a dyno of somebody with with FMF exhaust, same custom header that adds 1hp over FMF header, EJK tuned, and big bore.

    [​IMG]
     
    PcBuilder14, Jul 17, 2015
    #732
  13. Jul 17, 2015 at 5:06 AM
    #733
    Sacrifice

    #733
    Sacrifice Motorcycle Goon

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    Looking at those i would keep the fmf header, although i cant see the rpms on the colored chart. The fmf has more area under the curves except for a tiny bit at top end.
     
    Sacrifice, Jul 17, 2015
    #733
  14. Jul 17, 2015 at 5:15 AM
    #734
    PcBuilder14

    #734
    PcBuilder14 [OP] Well-Known Member

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    Whoops, I got it backwards... The blue I'd FMF and the red is custom. The custom one shows 1hp less, but produces better low end torque.

    It apparently does better fit torque over the FMF period, not just with the cams or big bore. I may see how much one costs...
     
    PcBuilder14, Jul 17, 2015
    #734
  15. Jul 17, 2015 at 5:21 AM
    #735
    Sacrifice

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    Ah. So is it homemade or does a company produce them?
     
    Sacrifice, Jul 17, 2015
    #735
  16. Jul 17, 2015 at 5:22 AM
    #736
    PcBuilder14

    #736
    PcBuilder14 [OP] Well-Known Member

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    Homemade by the guy running cams. He's sold a few of them, thinking I might want to buy one before he stops making them...
     
    PcBuilder14, Jul 17, 2015
    #736
  17. Jul 17, 2015 at 5:34 AM
    #737
    Sacrifice

    #737
    Sacrifice Motorcycle Goon

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    Itd be a nice addition as long as it isnt too expensive. You do already have the fmf header
     
    Sacrifice, Jul 17, 2015
    #737
  18. Jul 17, 2015 at 5:39 AM
    #738
    PcBuilder14

    #738
    PcBuilder14 [OP] Well-Known Member

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    Yeah, definitely wouldn't be hard to sell the FMF header though.
     
    PcBuilder14, Jul 17, 2015
    #738
  19. Jul 17, 2015 at 5:43 AM
    #739
    Sacrifice

    #739
    Sacrifice Motorcycle Goon

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    Its a sign you need to do the bb and everything, ha
     
    Sacrifice, Jul 17, 2015
    #739
  20. Jul 17, 2015 at 5:46 AM
    #740
    PcBuilder14

    #740
    PcBuilder14 [OP] Well-Known Member

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    Hmm, big bore or furniture...
     
    PcBuilder14, Jul 17, 2015
    #740
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