N2O setup questions - Honda Prelude Forum

Enhanced · 07-09-2003, 02:38 PM

I am looking into getting N2O and have been searching this site and few others to find out info on it. I think I am going to go with NX DP 65 shot. SO I would need 1 or 2 step colder plugs, wires and ingnition. They only thing I don't understand is about the timing. Could someone just explain to me what the timing is and how it is measured (degrees?)? And why would I want to retard the timing, what does it do? As for my setup, is that basically all I would need? I know I can get add ons to the setup like bottle opener etc. but for the basics is that ok?

CTPRELUDE · 07-09-2003, 09:16 PM

Retarding the timing lessens the chance of detonation. You would want to get the genx2 accessory kit as well that includes the bottle heater, purge, and some more safety stuff.

NXLude · 07-09-2003, 10:43 PM

Retarding your timing refers to ignition timing....which retards when your plugs fire......you can run that shot with no timing retard for sure.....one step colder plugs would be fine too

Enhanced · 07-10-2003, 04:52 AM

It is measured in degress, waht does the degrees mean?

So would I need the ignition and wires for this setup or no?

laughin2.2 · 07-10-2003, 08:27 AM

Spraying a 65 shot through a direct port kit is a bit dangerous because trash can clog the jets and if you clog a fuel jet your motor is done for. If you are just going to spray a 65 shot I'd stick with a single fogger kit.

Preyluder · 07-10-2003, 12:08 PM

Quote:

Originally posted by laughin2.2
Spraying a 65 shot through a direct port kit is a bit dangerous because trash can clog the jets and if you clog a fuel jet your motor is done for. If you are just going to spray a 65 shot I'd stick with a single fogger kit.

^^what he said.

I wouldn't even think about a dp kit, unless you plan on going over a 75 shot.

Enhanced · 07-10-2003, 04:56 PM

Ok so a single fogger for a 65 shot is good. Should I get 1 step colder plugs? Anything else I should get for that setup, ignition, wires, etc.? How well will a vafc work with nitrous?

Enhanced · 07-10-2003, 05:18 PM

Oh yeah, what do I need to measure? In other words, what gauges do I need, A/F ratio, N2O pressure, fuel pressure, etc?

axion68 · 07-10-2003, 07:38 PM

you will atleast want an n2o pressure guage, fuel pressure guage would be nice (but not necessary if you get an NX kit with the fuel pressure sensor) and an a/f ratio guage is good to watch in case you are lean. With running <50 shot you really only need an n20 pressure guage, however the other guages are nice to have too.

NXLude · 07-10-2003, 07:50 PM

Degrees in retard refers to degrees of camshaft rotation that the plug is firing

Enhanced · 07-10-2003, 08:45 PM

yeah I was planning on get NX so I will get N2O and A/F.

laughin2.2 · 07-10-2003, 09:50 PM

I rely on a fuel pressure gauge, nitrous pressure gauge, and dyno tuning.

NXLude · 07-10-2003, 10:29 PM

Laughin....when you spray does your N20 pressure decrease to a lower number by the end of the run?

Enhanced · 07-11-2003, 04:58 AM

Wouldn't you want to know the A/F ratio as well just in case it gets out of whack, if you go lean or rich?

laughin2.2 · 07-11-2003, 09:56 AM

Quote:

Originally posted by NXLude
Laughin....when you spray does your N20 pressure decrease to a lower number by the end of the run?

I've honestly never looked.

I would get a wideband O2 sensor instead of an A/F meter if you want to know if you are running rich or lean.
Edit: I'm usually at the dyno once or twice a year so I can get my car checked out with a wideband O2 there.

Enhanced · 07-11-2003, 10:55 PM

ok so those three (O2, N2O and fuel pressrue would be a good thing to have.

laughin2.2 · 07-11-2003, 11:00 PM

Yep. That'll do it.

jnkoh · 07-13-2003, 02:43 PM

I would get 2 step colder plugs, and you won't have to retard the timing

Enhanced · 07-14-2003, 05:01 AM

NX makes a stage one EFI system for the 5th gen that is adjustable from 35 to 75 hp. It comes with 10lb bottle, D-4 feed line, bottle brackets, fuel and nitrous solenoids (with a lifetime warranty), wide open throttle switch, patented shark nozzle, 35,50,75 hp settings, 60Amp relay, wiring harness, Stainless Steel lines, all mounting hardware, and switches. Is this a good setup? The only thing I will need to get is 1-2 steps colder, non-platinum plugs gapped at .035. That is what the reccommend. Het only thing I don't like about that is the 5th gen coems with platinum, is that ok?

axion68 · 07-14-2003, 07:37 AM

the NX stage one kit is a great kit, it is what I am running as well as quite a few others. For up to a 50 shot you will be fine with 1 step colder plugs, but at a 75 you might drop to 2 steps colder. As for platinum plugs, you could run 1 step or 2 step colder platinum plugs but you might experience detonation, which basically eats up your plugs. Why mess up a set of $40 plugs when a set of $8 copper plugs will give you the same performance? The only benefit for platinum/iridium plugs is that they last longer, but for the money you can change your copper plugs pretty frequently. I personally think copper plugs are more than efficient for any car, unless it the car doesn't receive much maintainance and then platinum plugs work great for a situation like that.