fbmbks
Expert Class
Posts: 226
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posted March 22, 2010 05:03 PM
quote:
Have you been running a flashed ECU on these motors? Low mph sounds like the clutch givin up on the big end , then the other question is , stock valve springs?
how would a flashed ecu help?
  
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nightmare
Pro
ACP Racing
Posts: 1797
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posted March 22, 2010 05:19 PM
quote:
MRX01 is hard to tune for spray.
did you check AF on a dyno or data logger?
If so watch your A/f when you get into the limiter or the 186mph (speedo), gearing changes real speed. The ECU is doing crazy stuff when you get near any limiter. Ask RR about some to the soft cuts and hard cuts. He is pretty deep into the code.
Sorry for your loss, but I've been in your shoes before.
Give it a couple weeks before you make a decision in haste.
Good luck whatever you decide to do.
I do not have a data logger sir and I don't hit the rev limiter at all. I can recall maybe twice that the bike has been on the limiter and once was because I blew an air line on the shifter and the other was from the chain breaking. Hitting the limiter is embarrassing and makes you look like a rookie and in the crowd, you get laughed at so that's a big no no. Not to mention the torture on the motor!
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2006 ZX14 Ninja "SWINE FLU"
60ft 1.23
8th Mile 5.16
ACP Racing
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nightmare
Pro
ACP Racing
Posts: 1797
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posted March 22, 2010 05:20 PM
quote:
quote:
Since your local. and just asking. do you have a window switch on the NOS system? are you going in to tthe Rev limit with the spray on? This will beat the rod bearings out fast. A 1000 will be worse. Jack ran a full 2 seasons with a 50 shot and never hurt the motor. Plus if you are buying used stock motors you have no idea if it came from one of the Biker Boy type riders who think it's cool to turn it up on the Rev limiter while sitting still in netural. For track use on used motors first thing we do is put new Rod bearings in them and make sure the oil pickup is clean. I loved my 14's but I swapped back to a Busa for track use just because they are so cheap to build and parts are everywhere. They are kind of like the Small Block chevy of motorcycles. You should build a motor and stop buying used ones to race with.
I believe he used to have a built motor.
My motors were built. All except this last one. To be honest with you, I was going to a busa in order to save money on my next build. Not cause I like it better than the 14. I love my bike. It's just getting too expensive.
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2006 ZX14 Ninja "SWINE FLU"
60ft 1.23
8th Mile 5.16
ACP Racing
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nightmare
Pro
ACP Racing
Posts: 1797
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posted March 22, 2010 05:27 PM
quote:
I am certainly not an expert but I have watched you leave and you leave hard. I would look at fuel first and by that I mean the map as well as the fuel. If you do not have a good map I do not care who builds the motor you are going to hurt it. I bought my bike new in 06 and have been spraying it practically from day one. I have hundreds of nos passes and like I stated in a past post I wanted to be on the safe side and pulled the head last year and my engine builder said it looked great. Another thing to look at is windage, with you pulling 1.29's that is putting all your oil in the back of your pan, my dragbike only 60'd 1.29 and I had a gate in there to prevent this. Nightmare I hate to see you go to a liter bike and worse yet a Busa. Its good to have a rider of your level on our side. I think if you were to get Ryan or someone very good to map your bike I don't see any problems with a 50 shot. I run Sunoco 93 octane and let it eat!
Believe me Jarhead, i do not want to part with it at all. My sponsors are suzuki city and even they are impressed with the numbers and accomplishments I have been achieving on this stock motor bike. The shop is highly considering bringing Kawasaki into their line up based off what I have been doing but I can build a busa for way less and they have many other parts than the 14. I surely do not want to look like everybody else either. I think I am going to do like everybody is saying and give it a couple of weeks before making my final decision. I am so scared that I will part with the bike and be kicking myself in the head!
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2006 ZX14 Ninja "SWINE FLU"
60ft 1.23
8th Mile 5.16
ACP Racing
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SixSixoh6
Zone Head
Posts: 660
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posted March 23, 2010 10:26 PM
Man sorry about your luck with so many motors. When my buddy talked to brocks over the phone, they do NOT recommend to use the spyder system on stock motors since the nitrous can spray past the rings and..well do what's happening. 50 shot I would have pulled atleast 2 degrees timing. Just to be on the safe side. Safe to run n2o and race gas?? If so what's the ratio you're using. Maybe you got too much of one and not enough of the other
Believe me there has already been times just workin on the kawi I've wanted to get rid of it. But I refuse, loved this bike since day one.
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2006 ZX-14: Murdered out, in the dirt, extended, sprayed, air shifted, geared--GONE
2009 ZX-14 SE--has two wheels and an engine
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