controling the spray

[jEzTeR]

Well I was half asleep the other day and for some reason I was thinking about NOS.Whats the downside to spray-aside from blowing up you motor-getting traction and using the NOS throughout the whole power band.So here was my thought....Lets say youve built your motor and are ready for the gas.Can you set up a CPU of some sort to automaticly spray said amounts of NOS only at said RPM?Like maby spray at 3k rmp in 2nd 3rd and 4th gear.with a laptop you could change your settings to spray more or lees NOS and at dif RPM's and or gears.This would eliminate having to push the button. What do you think?

[Q45tech]

The main problem is NOx is usually a constant volume spray per millisec so the amount of extra [oxygen] decreases as the rpm climb!

A JWT 75 HP shot might produce [5252/6000] x Hp =60 lb/ft at 6,000 but twice as much at 3,000 say 120 lb/ft so you gotta be careful at what rpm you start injecting.

More expensive controllers PULSE the NOs solenoid [vs time in second increments] to limit the power to limit the WASTEFUL wheel spin in first gear.

The major problem is getting the extra fuel and extra Nos to hit the cylinder at the correct amount at the same time. Since there is a time delay and gas and fuel travel at different speeds.

[reggiegsd]

I know everyone hates this kind of post but I'm diong it anyway.

While searching the internet several months ago looking at different NOS products, I came across a vender with a dual injector. It injected fuel and gas together. The pulse width of each injector was determined by a controller to ensure enough gas was available for the nitrous. It struck me as a rather clean way of running a wet nitrous system.

Now for the bad part. I can't remember who it was and haven't been able to find it again. Sorry.

[Q45tech]

Drilling the lower runners and injecting the mixture as close to cylinder as possible is the way to go with DUAL pulsing controllers.

You waste less Nos and get a more fine tuned operation.

Just such a PINTA [pain in the] to keep the tanks full and the cost and time value means it get used less and less.

A pulsed system for Q which just used Nos in 2nd gear would solve lots of problems.

[DAEDALUS]

Dual injection is also known as running "wet" as opposed to running dry, in which only the NOS is used. Not too uncommom, just less so because of complexity.In response to the original question, most systems that I have seen only open when the OD switch is engaged, i.e., when the pedal is all the way down. On motorcycles, I've seen the NOS hooked up to the horn switch. Pretty convenient until you need to use your horn! If you want to get any fancier, you can create a simple logic circuit from maybe $10 in parts (circuit board, common gate chips), in which you could specify what parameters lead to what event. E.g., IF pedal floored AND third gear, THEN apply NOS at 8V. It's been a while since I took a circuitry design lab, but I do know that something like this wouldn't take much time to figure out from a basic circuitry textbook. The issue then becomes one of inputs. You would need a separate input (from the vehicle, hopefully) for each parameter. Each one is either on (voltage) or off (dead).

[jEzTeR]

Quote »In response to the original question, most systems that I have seen only open when the OD switch is engaged, i.e., when the pedal is all the way down. On motorcycles, I've seen the NOS hooked up to the horn switch. Pretty convenient until you need to use your horn! If you want to get any fancier, you can create a simple logic circuit from maybe $10 in parts (circuit board, common gate chips), in which you could specify what parameters lead to what event. E.g., IF pedal floored AND third gear, THEN apply NOS at 8V. It's been a while since I took a circuitry design lab, but I do know that something like this wouldn't take much time to figure out from a basic circuitry textbook. The issue then becomes one of inputs. You would need a separate input (from the vehicle, hopefully) for each parameter. Each one is either on (voltage) or off (dead).[/quote]

That is what I had in mind.Could and should you take it a step or two further and set up a board with 3 or 4 settings pe-programed,then you could change how much power you need for said occaision.Mount the switch in the glove box or storage compartment.You would need a master button to arm the whole system.That would be a sweet NOS system.:ylsuper