NOS, HOW>

[SuperTuner12010]

I know the differnence between Dry and Wet but how do you hook up the fuel?Do you T ofo of a fuel line or what?\

Also on a direct port kit is there any easy way to do it for an F22 or H22 or do you have to drill the holes into the manifold? Thanks

[almostJDM]

dunno bout the fuel hookup on the wet system but on the direct port theres no other way you gotta drille thats why they call it direct port system

[jDmacCordh22a]

On a wet shot you T into the fuel line that feeds the fuel rail.

[SuperTuner12010]

Oh, so nos kits come with all the hardware to do it right?

[HondaB18]

NOS is a trademarked nitrous kit made by Holley. The correct term is nitrous and depending on which kit you get it should supply all the hardware for installation.

[BlackMagicCB7]

....

[fatboy1185]

waka waka

[chessboxer]

Nitrous faq, located just just above.
http://www.cb7tuner.com/vbb/showthread.php?t=252

[BustedLX]

On a wet shot you T into the fuel line that feeds the fuel rail.

No, you tap the return line. You never tap the pressure line, for one you lower the pressure available to the injectors and when you open your fuel solonoid the injectors will lose flow from the sudden pressure drop. Secondly an EFI fuel system runs on an average of 40-45psi of fuel pressure, that's why all the lines are crimped, or bolted with high pressure fittings to avoid leaks, a hose clamp on a "t" could possibly leak fuel. There is more then enough fuel pressure on the return line to feed the fuel solonoid(s).

[cp[mike]]

No, you tap the return line. You never tap the pressure line, for one you lower the pressure available to the injectors and when you open your fuel solonoid the injectors will lose flow from the sudden pressure drop. Secondly an EFI fuel system runs on an average of 40-45psi of fuel pressure, that's why all the lines are crimped, or bolted with high pressure fittings to avoid leaks, a hose clamp on a "t" could possibly leak fuel. There is more then enough fuel pressure on the return line to feed the fuel solonoid(s).

interesting... i was told (and i think in the booklet?) it said to T off of the feed line? i need to look again, and possibly redo my lines hahaha. no leaks, but i still havent used it yet...

[BustedLX]

interesting... i was told (and i think in the booklet?) it said to T off of the feed line? i need to look again, and possibly redo my lines hahaha. no leaks, but i still havent used it yet...

Yeah check it, It'll say not to tap the supply line on an EFI car, Crab is ok, 8-12psi of fuel. You only need that much pressure for the fogger, it's not about pressure it's about volume anyway.

If you want a sick nitrous setup you'll run a high dry shot with larger injectors and tune the ECU for ignition retard and extra fuel the injectors will need to dump. That's how mine is done 100K sparying 100+ (like 110-115) shot and no problems baby

[93 CB7 SE]

my kit tells me to tap the supply line its made by nitrous supply.com a mike thermos kit.

[10thcb7]

wow

BustedLX I would LOVE a setup such as yours. Could you explain why you choose dry over wet ? Also what tuning tools did you use to gain that kind of reliabilty? Cam gears Timing gun burn1 emulator wide band ect ?

[BustedLX]

BustedLX I would LOVE a setup such as yours. Could you explain why you choose dry over wet ? Also what tuning tools did you use to gain that kind of reliabilty? Cam gears Timing gun burn1 emulator wide band ect ?

I choose dry because it made more sense to me from a tuning perspective. I don't have to worry about the heavier fuel trying to atomize correctly with the nitrous gas. I also don't have to worry that I'll be leaning out the cylinder furthest from the TB because the heavier fuel is drawn to the closet cylinder first. It's more efficient in my opinion as far as a single fogger is concerned.

By injecting only nitrous gas and tunning injector duration I can increase the amount of fuel necessary via the ECU and not a jet dumping fuel into my TB.

To tune the setup I use Crome as my rom editor with realtime programing, a romulator, and my car has a PLX-M300 wide band oxygen sensor perm. installed.

To switch between the N/A tune and the N2O tune on the fly I use an ECUTune N2O module. Which is basically a double capacity chip that stores two maps as obbosed to one and via a trigger wire (electronic WOT switch in Zex module) makes the tune switch instantly. So yes I dismanteled the Zex module so that I could interface it's built in electronic WOT switch.

This is how I can maintain driveability N/A and yet still spray such a large shot with the correct fuel and ignition timing.

[v4lu3s]

Nitrous Express recommend pulling fuel from the rail or from the high pressure feed line. They SPECIFICALLY say do NOT use the return line.

NOS also states that if you are not drawing off the test port/fuel rail you will need to draw fuel from the high pressure supply line.