power shot

[91celicagts]

on nitrous kits, the cylinoids are the things that open when u hit a switch or button. i see some people that have 2 of them on one line. does that serve any purpose? wont one power shot cylinoid do the same thing as two?

[BadgerType]

on nitrous kits, the cylinoids are the things that open when u hit a switch or button. i see some people that have 2 of them on one line. does that serve any purpose? wont one power shot cylinoid do the same thing as two?

on mine, its has a seperate solenoid that opens up when the fuel pressure is just right so i dont lean out

[bleu]

i think some may have a purge if I am not mistaken. Dry kit right?

but don't quote me on that one.

[hammered54]

a purge would need to be tee'ed off the line as to not restrick the main flow, as two in row would only flow as much as the smallest one, first or second, even when there both on, now you could tee the inlet's with one larger line and have two seperate but equal output's ,I do that now not a problem, that might be what your looking at, sometime's it hard to see all the plumbing and can be misleading.

[Nate]

Some use 2 solenoids, one for purge.

[srsnow]

What you are probably seeing is an NOS style dry kit that uses 2 solenoids. As badger said one is there to open allowing the nitrous regulator to bump the fuel pressure up which then allows the second solenoid to open. You could use just one but then you would not be able to use a FPSS. Also some progressive controlers will use a redundant solenoid.

[bigstim179]

You could use just one but then you would not be able to use a FPSS.

That's not true. Well not in the case of NOS FPSS's anyway. If you look at the wiring diagram for NOS FPSS's you'll see you only need one solenoid. The switch actually acts as a switch in the ground wire of the solenoids. The FPSS is closed while there is fuel pressure, so the solenoids have a complete circuit, but if the fuel pressure drops the switch opens thus breaking the circuit and causing the solenoids to lose power and close

[srsnow]

That's not true. Well not in the case of NOS FPSS's anyway. If you look at the wiring diagram for NOS FPSS's you'll see you only need one solenoid. The switch actually acts as a switch in the ground wire of the solenoids. The FPSS is closed while there is fuel pressure, so the solenoids have a complete circuit, but if the fuel pressure drops the switch opens thus breaking the circuit and causing the solenoids to lose power and close

You may be able to wire it in but since there is only one solenoid it won't open. A standard NOS FPSS that comes in a dry kit (05122,05115,05176 ect.) is pre set to around 50psi. You need the first solenoid and in this case the only solenoid to open before the nitrous regulator can increase the fuel pressure. But since you only have the one it will not be able to open since it is wired through a FPSS. This is why you need two solenoids to make it work with a FPSS the first one needs to be wired straight to ground allowing it to open when the kit is activated there by allowing the nitrous regulator to increase the fuel pressure which in turn triggers the FPSS that the second solenoid is grounded through completing the circuit and allowing the nitrous to enter the engine. With only one solenoid you lose this function, you could lower the FPSS to a point where it is grounded all the time there by letting the solenoid work but also defeats the purpose of the FPSS.

[z28]

Maybe use for the first solenoid as a opener.