tuning nos?

[LeDauz]

am looking at buying a busa with nos and was wondering if there is any tuning that needs to be done for the nos to work right?

and if there are any things i might wana keep an eye out for that could cause me problems the seller might not mention or now about?

[GPW]

Originally Posted by LeDauz

am looking at buying a busa with nos and was wondering if there is any tuning that needs to be done for the nos to work right?

and if there are any things i might wana keep an eye out for that could cause me problems the seller might not mention or now about?

Do a compression check..

[HeyABusa]

Originally Posted by GPW

Do a compression check..

+1 i agree with GPW that will tell all and a leakdown test will tell u if there is a problem and where to start

[Draco1340]

Generally having a good nitrous tune is critical. A stock motor can generally survive the stupid things we do to our bikes, but a spray motor can go bad quickly if its not set up right. The bad news is many dyno operators still won't run spray on a dyno, and most guys on the street never have them tuned. Remember, a nitrous tune is typically two sets of maps. You need to do a baseline motor map first (fuel and timing preferably) and then do the nitrous map adding fuel and pulling timing if needed. For this extra work, some tuners understandably charge extra.

A leakdown can tell you if you have a bent, burnt, or leaking valve, or a pinched ring land. Other typical nitrous abuse thats harder to see without a tear down is piston detonation, rod bearing abuse and roundness, and wrist pin galling (all caused by detonation). The GenII OEM wrist pins are smaller, and may be more succeptable to this. Not sure.

[djsin]

do what everyone here says, and if its more then a 30-40 shot i would definatly get it dyno'd for the nos

[BusaWizard]

What they said.

[LeDauz]

ok, i got the new busa 07 with nos, the seller didnt know the shot of the nos since her ex husband didnt say. how do i find out the shot of nos it is?

[Draco1340]

Not sure if the system is wet or dry. If dry it may have one or more jets in the airbox. Locate the jets, and tell us the size of the jets. For 1000 psi, this is what to expect for a given N2O jet.


Jet # HP/Jet
15 7.5
20 15
23 18
24 20
25 22.5
26 25

[LeDauz]

ok i pertty sure its a wet system. and its from nitrous express. none of the solenoids run into the air box they all seem to run into the engine.

[Draco1340]

A wet system ported directly into the cylinder head will have 4 injectors under the gas tank. Each injector will have a fuel line and a N2O line if its a wet system. Unscrew the fitting holding the nitrous line, and under the fitting will be a jet with a small number stamped on it. For example a #20 jet is 0.020" diameter, and is worth 15HP x 4 injectors = 60 HP system (very common setup).

[LeDauz]

thanks for all the help

its a 60shot wet kit with a 2.5lbs bottle

[slatroni]

OOooo good score!

[POWERHOUSE]

Originally Posted by LeDauz

thanks for all the help

its a 60shot wet kit with a 2.5lbs bottle

I would ASSume from what you said that you have #20 nitrous jets in your fogger nozzles. What size are the fuel jets?

Keep in mind that different outside temps will cause flucuations in the "tune" of the nitrous, i.e., the hotter the bottle, the higher the pressure - hence more nitrous as opposed to fuel. That is why successful nitrous pilots pay close attention to bottle pressure. Do you have a pressure gauge on the bottle? Consider running a pressure-controlled bottle heater that keeps your bottle at a consistent pressure. Get the bike dyno-tuned, get the nitrous itself dyno-tuned as well. Find out what the A/F is when you hit the nitrous. Make sure you have at least -2 degrees pulled when the nitrous is used!

[4acp]

does that bike have a pc3 with ignition module or bazazz, etc?

you need to be able to tune fuel and ignition timing.... with the wet system you can also change jets.

does it have a progressive controller to ramp the NOS injection?

[LeDauz]

will get plenty of pics on it because i got it from a lady who was selling her ex husbands busa

[LeDauz]

ok so i notice a wire burned to a crisp; am not sure how this happened because I got it form auction and was told it sat for around a year.

Then naturaly I call and ask local dealership and say 07 busa nirtous; and BAM "we dont deal with nirtous"

So if any knows someone who works on nos bikes in soutern colorado it would be a big help

also it won't start atm

[LeDauz]

pictures continued

[4acp]

it looks like your fuel pump wires... when you turn your key your pump does not prime does it? just grab a new plug and rewire it. they may have wired the nos kit into it witout using a relay and melted the wires, but who knows witout going thru the entire system.

[crawler]

Withous seeing better pictures, I'm guessing that the stainless braided hose rubbed against the wiring until it rubbed through the wire's protective sheith. Then the wire would have touched the stainless brided hose causing the wire to ground out or arc or most likely both.

[LeDauz]

I found someone that will check the wires and am hopeing thats the only problems this busa has. But anyways still haven't found anyone that does nitrous yet.

So if you know anyone in the southern colorado area or Colorado Springs that does nos on motorcycles please speak up