I just had someone ask me how my system worked and where i got it and so on, it turned out pretty long so i thought i would see if anyone else was a little curios.
The system i run is very simple, I have one nossile that has been put into my throttlebody, into this nossile nitrous and fuel are sprayed and mixed into the air flow and so on. The fuel that is injected comes off your original fuel rail, where mine then has an inline fuel regularor which keeps the flow to the nossile at a constant 6psi.
You can sort of make it out in this picture.
You can change the amount of horse power by changing the size of the jets inside the nossile, takes about 5mins to change.
Then their is the bottle, has to be mounted in the boot or in the tray, cannot be in the cabin unless it is a registered drag car, even then it has to be ventilated external of the car.
I rent my bottle it costs around $100 to exchange bottles from boc. For that you get 14lb of nitrous. You will use 1lb per 100hp per 10 seconds. For example. If you had a 14lb bottle and you had 100hp jets you would get 140 seconds worth of boost, which is about 9-10 1/4 mile runs.
To operate my system i have a switch is turnd on which arms the solinoids. I have a micro on my throttle body which is activated at full throttle and sets the solinoids off sending fuel and n20 into the nossile.
This means you can have nitrous through the full gear range, much better than a single shot system.
How ever i must be doing at LEAST 3000rpm before you plant your foot flat to the floor or your engine might not thank you for shoving n20 down its intake when its not quite ready. BANG.
I have two shift lights one for 3000rpm and one for 5200rpm, that works pretty good for me.
My system is from a guy called Rob Madden, he is in albion park near wollongong. His buisness is called ozrace, www.ozrace.com
The system costs around $900 if you want to install it yourself, it comes with good instructions, so if your some what good with cars you shouldnt have a problem.
However i got mine installed, cause im lazy, it cost $2000.
It gave me around 80+rwkw on the dyno, so i am very happy with it.
However if Rob is busy with his wholesale another good performance mechanic that does install Robs oznos kits is Peak Performance in Ulladulla, south coast. These guys have got some very powerfull toys.
The legals i know are on NSW roads if you are anywhere else you will have to check with your RTA.
In NSW it is illegal to use nitrous on pubic roads. It is illegal to have hp jets in your nossile(s) and your main line is to be disconnected from the bottle. You also have to have blank jets and your nossile blanked off. So when you drive to your drag it takes about 5 mis to set it ready to race, just make sure you put the blanks back on before you drive home.
But you should still find out for your self.
Well i think thats about it if you need to know anything more just let me know.
Sorry about any spelling mistakes, ive had a couple of rums.