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Joined: Jan 2002
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OK: N2O - not NO2, nitro, etc
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Joined: Jun 2000
Posts: 3,562
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You getting confused... The nitrous systems have nothing to do directly with how many fuel injectors the engine has, wet or dry.
A regular dry system will have a N2O at or near the TB. Obviously, the closer to the actual port inlet the quicker to respond the better. Fuel is added by using either a vacuum bleeder on the fuel pressure regulator (spikes fuel pressure increasing flow of the stock injectors) or an electronic way to widen the injector pulse width.
A regular wet system will have one fuel nozzle and one N2O nozzle, or perhaps one nozzle for both fuel and N2O, at or near the TB. The same holds true her, the closer to the actual port the better.
A direct port wet system will have a fuel nozzle and a N2O nozzle PER PORT (again, fuel and N2O can be combined into one nozzle per port with some systems). This is the closest you can get to the port for quick respsonse and also the best spray patterns for better combustion without fuel puddling in a curvy intake manifold. It's also quite expensive because you need multiple nozzles, jets, and two distribution blocks from the selenoids.
Brad Noon '99 SE MTX 3 point oh my God H.O. 179HP/178TQ BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!bnmotorsports@msn.com
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Joined: Jan 2002
Posts: 24
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Yes I was getting confused. So read back over all the discussion so far and I think I see the light. I hadn't understood that the wet N2O system injects extra fuel in addition to the N2O. It all makes a lot more sense now.
The 35, 50, 75 shot N2O nozzles refer to 35 thousands of an inch, 50 thou etc?
What sort of additional fuel injector is fitted? When it is activated, is it metered or pulsed or just full open whilst the throttle is at WOT? Is it fed from the same pressure line that feeds the injector fuel rail?
When you change N2O shot size do you have to adjust or change the fuel injector too?
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Joined: Jul 2001
Posts: 213
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Posts: 213 |
you dont change the fuel injectors for anything when you install the system...they stay the same unless you want to upgrade...when i raised my shot to 75 i didn't change the injectors cuz i didn't have to...the size of the shot such as 35 50 and 75 is how big the hole is on the jet which determines how much nitrous and xtra gas is sent to my engine.
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Joined: Apr 2001
Posts: 569
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**Spelling should not count**
2000 SE Zetec ATX
Medium Steel Blue (Now with large custom dent on the rear door)
Cool Blue Lows, Silver Star Highs (great lights)
"If what I said was wrong, it wasn't. I just forgot to add the rest of my post."
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Joined: Jul 2001
Posts: 213
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piks...y would u want piks...jk...i will hopefully have some piks w/n the next week if i dont keep on forgetting
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Joined: Apr 2001
Posts: 569
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Reminder PICS PICS PICS Please
**Spelling should not count**
2000 SE Zetec ATX
Medium Steel Blue (Now with large custom dent on the rear door)
Cool Blue Lows, Silver Star Highs (great lights)
"If what I said was wrong, it wasn't. I just forgot to add the rest of my post."
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Joined: Feb 2002
Posts: 97
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Questions...
1. How much was the intall+kit?
2. Where did you get the kit from?
3. Who did you goto to get it intalled?
4. What shot do you reccomend w. Zex sparks and new wires (along with genral mods, like CTA intake, no resonator/dynomax muffler)?
+Ford Thunderbird 1997 - V8
+Ford Contour 1995 GL [REST IN PEACE :(][Champagne|ATX]
-9mm Ford Racing wires
-CTA Intake Kit
-Removed exaust resonator
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Joined: Jul 2000
Posts: 1,692
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Shaun drive you a** up here and I will take some with my digital cam and post them for ya.... BTW then we can race 
Joe Hartley "yes I know it's a MTX Zetec but it beats having a ATX Duratec" Champagne 96 GL MTX some mods dynoed at 114.2whp and 124.4wtq (pre CTA intake) 16.858 @ 80.76mph (yes it's slow but still faster than D Davis) AIM: ZetecRacing My Site My Profile
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Joined: Jan 2002
Posts: 24
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Hi
Interesting topic that I have enjoyed learning from - any chance of rounding off with some long promised photos?
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