NOS delay box?

[elmostro]

will these box work with dry system, i have no idea what is for i just read and read and don't understand, but i'm getting a good deal on it. 50.00 what you guys think
Nitrous Oxide Systems (NOS) 15838NOS - NOS Time Delay Switches - summitracing.com

 

[Draco1340]

Thats a good price, and yes, you can use this for delaying the activation of your dry system for dragracing. Say you want the sprary to come in at the second gear shift point, you can delay the spray activation for around 1.2 seconds. Your relay can also be used to switch maps if you have a Power commander hub. There are a couple of posts on this topic.

 

[Ludicrous Speed]

Or you could go with a progressive from Schnitz and start spraying it in first

 

[elmostro]

what is the diff between progressive from Schnitz and this one?

 

[afterhours]

the schnitz i have is a 2 dial... but is progressive ,allowing you to ramp up the nitrous.

 

[elmostro]

meaning the nos box will start spraying nos the same amount the whole time

 

[Ludicrous Speed]

A progressive two dial allows you to set the amount of nitrous to start spraying (instead of all at once) and how fast it goes to 100 percent.

So if you have a 50 shot, you will probably not be able to spray it in first, you have to wait until second gear. If you have a progressive, you can spray 20% of that 50 hp and bring it to 50 hp in a set amount of time

 

[elmostro]

well i just bought it 50.00 for a 300 box i think is a good deal. i just don't get the progressive part of it, when you are at wot you should be getting the right amount of fuel and the right amount of nos to avoid detonation or engine problems, if you go wot and you spraying 20% of nos but 100% of fuel that wont cause any problems?

 

[Draco1340]

My progressive box (made by Schnitz) has two timers. Its activated by WOT, but doesn't spray for a set time. Then I use a second timer built into the box to switch fuel maps and pull timing. During activation, the progressive ramps the rate of spray, but the more usefull feature is the built in timers.

Most of the discussions about nitrous seem to center on spray bars and such. The much more difficult part of dry spray is controlling the fuel. This is why wet systems are in some way much simpler. I'm not certain that the timer you bought is going to work for you just by itself.

 

[afterhours]

there is nothing wrong with the box you have.....it will do what you want it to.it will allow you activate your nitrous at a specific time during the run

 

[elmostro]

i'm goiing to need to help trying to wire this thin. i'll be using the multy-hub with the box, and i have no idea where to start.