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    Thread: build thread: 16v + cbr900 carbs + high compression

    1. Member yeayeayea's Avatar
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      06-10-2012 11:42 PM #126
      Quote Originally Posted by steveo27 View Post


      Hope ya feel better chief. And hope to see ya around
      Long time no see steve, still got the 12v?

      Quote Originally Posted by bmwquick View Post
      Sounds reliable. Ever left you stranded? I'd like to DD mine to work/school when I finish it.
      The only carb related problem I have had was a broken throttle cable that was made from a bicycle brake cable. The new cable I have has been problem free.

      Other than that, I have had two spark plugs, both on cyl4 break the porcelain. Also have had two oil pressure senders fail, the second one being a used one I got from a friend though. Only other problem was a radiator clog, the little vent line on the top of the rad was clogged, causing the radiator to get filled with steam vapor and overheat the car. Pretty tame for a 23 year old car that gets driven hard every time it is running.

    2. Member
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      06-10-2012 11:56 PM #127
      so slightly more reliable than mine. You said you may be able to hit 150 whp with some finer tuning, do you think that's possible? I would be very happy if I could get mine in the 145-150 zone without going for crazy cams..
      Need a 16V manifold flange to build your custom carb intake mani!?! I can get you one laser-cut for $85 shipped!!! PM me!

    3. Member yeayeayea's Avatar
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      06-11-2012 12:04 AM #128
      Quote Originally Posted by bmwquick View Post
      so slightly more reliable than mine. You said you may be able to hit 150 whp with some finer tuning, do you think that's possible? I would be very happy if I could get mine in the 145-150 zone without going for crazy cams..
      Im sure its possible. I literally have only played with needle heights for tuning. no syncing, no idle jet adjustments. But it runs well enough that I dont care to bother with it.

    4. Member OrangeDUB's Avatar
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      06-14-2012 03:35 PM #129
      What throttle cable did you end up using? Last time I asked I think your reply was a bicycle cable, but I see that didn't last.

    5. Member yeayeayea's Avatar
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      06-15-2012 11:41 PM #130
      Quote Originally Posted by yeayeayea View Post
      So its time to make a new throttle cable, since my bicycle brake cable finally died.

      I am using a honda hood release cable, as it has the right size barrel end for the cbr900 carbs


      It has a barrel on one end and a ball on the other, i cut the ball off


      next I cut the J hook off the stock cable, and drilled out the cable that was left crimped inside it


      Here is what ends I will have once I determine my length


      hopefully tomorrow I will cut it to the right length and crimp and solder the j hook on and have a nice new throttle cable with no cable clamps anywhere

      I think it came out of an early 90's honda accord.

    6. Member OrangeDUB's Avatar
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      06-19-2012 09:16 PM #131
      Thanks for the info. So did you get the Accord's steel cable to take the solder in? I can solder better than most and couldn't for the life of me get the OEM cable to take the solder, even with more than enough intense heat and plenty of flux.

    7. Member yeayeayea's Avatar
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      06-19-2012 09:22 PM #132
      cant say for sure, but I think it flowed in ok, at least into the hook. I crimped it first, so it may be the crimp doing all the work.

    8. 08-10-2012 09:46 PM #133
      with line is the main fuel line the top hose or the bottom

    9. Member OrangeDUB's Avatar
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      08-10-2012 10:22 PM #134
      Quote Originally Posted by marcabrams View Post
      with line is the main fuel line the top hose or the bottom
      The bottom is your fuel input. The upper 2 nipples that are between the carb pairs are your guel overflow/return, and the main big upper nipple in the center by the throttle cable attachment is a breather for the main venturi vacuum chambers, and that needs to breathe to atmospheric.

    10. Member yeayeayea's Avatar
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      08-25-2012 12:08 PM #135
      Soon


    11. Member scirocconaut's Avatar
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      08-30-2012 07:05 AM #136
      I would like to convert, wish I hadnt sold
      My hayabusa carbs

    12. Member yeayeayea's Avatar
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      08-31-2012 05:15 PM #137
      I wouldnt mind stepping up to some carbs with a larger Throttle plate diameter. the cbr900 carbs are 38mm, i think R1 carbs are 40. Do you know how big the busa carbs are?

    13. Member OrangeDUB's Avatar
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      09-01-2012 02:35 PM #138
      Ever since I put carbs on my rabbit, I have since questioned why I didn't get hold of a digifant ECU with wiring and some injected motorcycle throttle bodies...

    14. Member yeayeayea's Avatar
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      09-09-2012 09:29 PM #139
      Quote Originally Posted by OrangeDUB View Post
      Ever since I put carbs on my rabbit, I have since questioned why I didn't get hold of a digifant ECU with wiring and some injected motorcycle throttle bodies...
      Well the carbs are a lot cheaper and simpler than going through all that hassle. But Fuel injected ITB's have a higher power potential if done right.

    15. Member yeayeayea's Avatar
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      09-20-2012 12:45 AM #140
      Say what!?


    16. Member yeayeayea's Avatar
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      09-21-2012 06:33 AM #141
      Found one of the dyno printouts from the last time I dynoed it. Unfortunately, it is speed based, not rpm, so no torque curve.



      New motor goes in tonight, with an 8lb flywheel and new friction disc and new axle. Looking forward to some track time once it I tune it for the extra displacement

    17. Member yeayeayea's Avatar
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      09-24-2012 11:50 PM #142
      First start of the 2.0 16v swap.





      After letting it run for a while, it sounds like it needs an Intermediate shaft bearing. making bad noises.

      Edit: New IM shaft bearing and a different TB tensioner, and the noise is gone.
      Last edited by yeayeayea; 11-25-2012 at 05:39 PM.

    18. Member yeayeayea's Avatar
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      10-09-2012 04:28 PM #143
      First 8k pull on the new motor. needs some jet work, but that will come in due time


    19. Member OrangeDUB's Avatar
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      10-11-2012 11:57 PM #144
      Awesome! Do are you happy overall with this? How reliable has it been?

    20. Member keeton's Avatar
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      10-24-2012 06:27 PM #145
      Quote Originally Posted by yeayeayea View Post
      I need to get rid of the crappy aluminum aftermarket crankcase breather plate and run an oem one, so this stops happening.
      That's not an NLS one is it? I though about picking one up to use with my catch can.

    21. Member yeayeayea's Avatar
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      10-24-2012 11:09 PM #146
      Quote Originally Posted by keeton View Post
      That's not an NLS one is it? I though about picking one up to use with my catch can.
      It does not have any markings on it, but it does not look like it is a NLS piece. However, if the NLS piece is not baffled, expect the same results.

    22. Member rysskii3's Avatar
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      10-25-2012 12:48 PM #147
      check out the Peterson Fluid Systems 08-0410. it has a baffle on top so that oil doesnt get into the filter. very nice catch can. i absolutely love it.
      OIF 06-07: Hospital Corpsman FMF. Al Habbaniyah, Al-Anbar Province, Iraq.
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    23. Member keeton's Avatar
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      10-25-2012 06:37 PM #148
      Quote Originally Posted by yeayeayea View Post
      It does not have any markings on it, but it does not look like it is a NLS piece. However, if the NLS piece is not baffled, expect the same results.
      What's it doing? Blowing the hose off?

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      10-25-2012 09:49 PM #149
      Quote Originally Posted by yeayeayea View Post
      I need to get rid of the crappy aluminum aftermarket crankcase breather plate and run an oem one, so this stops happening.


      Also, I need to ditch the PS lines, pump, etc as the steering rack leaks badly.

      The motor smokes a little when I get on it. Hoping thicker oil will remedy this as I am only running 10w30. But it lights the tires up in first when I step on it, and I like that

      my engine was spitting oil like that when it was during break-in but stopped after about 3-400km, ive installed a catchcan with no baffle and the oil stayed in the catch can i didnt go thru the filter like that
      Last edited by hantonyc; 10-26-2012 at 07:47 AM.

    25. Member yeayeayea's Avatar
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      10-27-2012 03:11 AM #150
      Quote Originally Posted by hantonyc View Post
      my engine was spitting oil like that when it was during break-in but stopped after about 3-400km, ive installed a catchcan with no baffle and the oil stayed in the catch can i didnt go thru the filter like that
      The can only does that when it is full. However, since the breather plate isn't baffled, that only took a week to happen.

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