loudhvx wrote:
Ok, I know this is redundant,dont worry about that i spent hrs of research and asking questions to experts to get where i am, i had to be told stuff over again too but I just need to be sure we're on the same page (and you've probably told me this one way or another three times already, I just don't want anything blowing up in the crotch area, if you know what I mean )
believe me, thats the last thing i want to happen too!!
We are designing the stage 2 wiring only. yes
Stage 2 will only be in effect while stage 1 is already spraying. (Never stage 2 by itself.)yes
Stage 1 and stage 2 each have their own solenoid and plumbing.yes just like the pics i posted, thats a dual stage setup on a zx12r not a zrx
You are going to have stage 1 up and running first, before installing stage 2.actually i'll probably put them both on at the same time, but only use stage 1 untill im used to it/ have it perfectly tuned with the power commander and wideband O2 sensor, then ill fine tune the resistance with the wideband O2 sensor in the exhaust for stage 2
Stage 2 will come on via starter button, but you may not want it to stay on the entire time of WOT, so letting off the button will shut it down. This means any backfiring, hiccups, etc needs to be eliminated. This means a possible (or probable) need for timing the solenoid/resistor-circuit so the mixture won't go too far off in either direction (lean/rich) when the button is pushed/released. yes
Anytime the throttle is closed slightly, all spraying will stop.yes, and the resistance of the coolant temp circuit has to go back to normal IF stage 2 was on(possibly on a timer)
Stage 2 will be temperature sensitive based on coolant sensor.yes
Stage 1 is temperature sensitive based on the airbox temp sensor.yes
Is that right so far? perfecto
I still have a few questions then.
First, I think it's possible to use one WOT-microswitch to do all of this, without complicating anything. Should we just plan on one microswitch, then? if it can be built with just one easily then sure. but they are only $13 each
Also, this is a stage 1 question, but how will the ECU know how much fuel to give for the stage 1 spray? If it's basing it on the temperature of the airbox, won't it only give enough fuel to account for cold air? That won't be enough fuel to account for the extra oxygen in the cold N2O, will it? Is the airbox temp-sensor going to get hacked as well? no it wont be hacked, for some reason the ecu puts in enough fuel for the temp drop of the nitrous safley up to around 40hp worth of nitrous. some guys say 50hp. im not sure exactly how it works, but it does and is currently working on literally thousands of fuel injected bikes with an air box temp sensor. this is all brands of dry nitrous setups. they spray in nitrous and it works. check dynotune, check nx, check muzzys, check cold fusion, they are all basically the same when you are adding a dry kit.(you just need to get "fancy" if you want more power with the dry kit)
Are the fuel injectors capable of handling this extra fuel flow? Does the ECU have a limit to the pulse-width it gives to the injector? If so, won't it be getting exceeded? Was the system designed, from the factory, knowing N2O might be used? the fuel injectors are capable of running about 280 hp(total at the wheel) im told with stock fuel pressure. my fuel pump may be the limiting factor, but muzzy sells one specifically for this type of application. it bumps fuel pressure(need to remap for new pressure, but i can get a map from a guy with the same setup only he doesnt have stage 2) a bit and is capable of flowing a lot more gas. im not sure if kawi planned on nitrous for their bikes, but they had to know it would be getting the upgrades like every other bike out there. might as well make it easier for the customers to hop up their brand??
Also, is this same stage1/stage2 setup working on that ZRX in the photos, or is that something different (two solenoids and relays)?
the zx12r in my pics doesnt have the tank cover on, it looks kinda funny if you havent taken one off before. the black box and fuses are stock pieces. ill try to find a pic of that area without nitrous stuff
Sorry so many questions, no rush, obviously. bring them on, no matter how small I want you to know this stuff too if you are helping design it. my life could be hanging in the balance