AO

I'm going with the 50-shot to start. I'll definately baby it, until I build more confidence with the system. There's a 75-shot and 100-shot included. Learn to walk, then run!

sublimate

Can you plug 'em all in at once and get a 225hp shot?

mark kibort

a couple of MAJOR things!!!!!!

where is the nut i had custom made for the fuel rail? it also had a part with a tapped portion for a nice VDO fuel pressure guage! it used a stock fuel rail nut, so no issues with threads. AND it had a T for the fuel pressure guage. it really is the way to go.

you tapped the existing "blue" fitting. I think that part goes on the NOS bottle. If i remember correctly, that black thing with the two wires, is a pressure sensor, that gives a open or closed electrical signal to the relay that controls the bottle heater.
SO, im almost positive that the blue fitting is not for fuel. also, by tapping it yourself, and it being the end of the fuel rail, do you really trust a "TAP" with your life and car??? if that leaks or goes, KABOOOOOOM!!!!

where is the fuel pressure guage!!! find that and the nut, and you solve many of the issues.

NEXT, on the fitting to the plenum, i cant remember which one was top or bottom, but it looks like you have it set up wrong. the nosile should be angled so the single nosile inside the plennum is angled down, orafices pointing up (fuel and NOS spray up) and the two fittings on the outside are kind of angled up as they will strattle almost perfectly , the breather oil hose.

Also, dont forget, each of the nosile has a small little restrictor, orifice for the HP settings. i forget the numbers, but they are written on the side of the little brass things. I also had a chart written to show what fittings give what hp for both fuel and NOS mixtures.

more pics please.

dont worry about the solinoids fitting upside down. no orientation to worry about.

MK

mark kibort

so, call Nitros express and tell them you need a new blue thingie that you ruinied by tapping for fuel . that blue thinging is used to attach to the NOS bottle.

then, call 928 intl or devek for a fuel rail nut. (without the sealing ball bearing) take the nut to a machine shop and weld a fitting for the fuel pressure guage and a AN threaded fitting for the fuel line leading to the fuel solinoid.

ask away!

do you have the bottle heater, and switches i originally gave to Kieth??

this is kind of like one of those stories (as the system has changed hands so many times now) where at the end of 30 people the story is not even close to the original!)

MK

AO

Well Mark,
There is no fuel pressure guage. I was curious about that. I'll have to get a fuel rail fitting fabbed up then.
The blue thingy must be a spare because there's already one on the tank - but the guage is broken - I'll get a new new one from a shop that sells nitrous equipment here in Detroit - Ramchargers. I do have the heater and the switches on the black cover and the "rat's nest" of wiring. I think I have that stuff sorted out. I bought a flush-mount switch for the false pedal next to the clutch.

The orientation of the nozzle is correct. I tried it the other way at it looked like it was at a 45* angle. The opening was the closest to straight up as I could get it. I'm picking up a breather hose on the way home from work today and will see what I can do with that.

The meetering "jets" are all stamped with a number. And inside the baggie, [I assume it was] you have listed the corresponding jet number for the HP shot you want. I think it's 18 N20 and 23 Fuel for the 50 shot. 18 on the N20 for sure, can't remember the fuel, but I got the right one in there per your card.

I'll shoot Kieth W. and Joe S. an email to try and track down the fuel rail fitting. Thanks for the tips.

mark kibort

yes, it should be pointing down about 45 degree angle. is that what you mean?
this also means that the output in the plennum is pointing up but toward the windshield. (if you could invision it inside). this way, not only does the stream flow go to the middle of the plennum, feeding all the cylinders equally, but the engine side, the oil breather hose is straddled btween the NOS/fuel hoses

the blue thinking has the black thingie attached. again, this is the bottle pressure sensor which cuts off power to the heater when the pressure gets to 1200 psi or something. (trying to keep the pressure around 1000psi or somethign) AND not blow up the bottle!!!!!! needed as a saftey as you cant always watch the bottle pressure, nor can you remember to turn off the heater.

KEEEP in mind that if the bottle is turned off, then the pressure sensor has no way of knowing the pressure as it is AFTER the guage on the bottle. (i think the gauge on the bottle is after the valve too!) SO, if the saftey switch valve cant read pressure, and the bottle is turned off, as the heater heats the bottle , you HOPE the 3000psi safety vent works. if not, then BIG KABOOM, without fire, but with more explosive force than you can imagine. (ie we have all seen the guy with the mitsubishi that blew up his car, and left a 5ft hole in his garage door.

NOS is inhearently safe, its just very unforgiving to the careless. (just like flying or racing!)

Mk

mark kibort

I seemed to remember there was a spare blue thinking, but whats up with the black pressure sensor switch attached. i didnt think both of the blue thingies had them. so, if not, that black thing and the blue thing should go on the bottle for the reasons ive mentioned.

again, get a fuel nut and have them weld on an AN fitting to it and then you can buy an AN "T" fitting for the fuel pressure gauge and have the right fitting for the fuel line to the fuel solinoid.



Mk

AO

Got it Mark. Thanks. I'll go back and re-evaluate my install thus far.

As for the nozzle - I'm a bit confused.

The nossle looks kinda like this:


I want that notch/opening to point up, right? Because that's how it's position right now - I think, better go and check again.

I'll take more pictures this time.

AO

Mark-
There is a pressure sensor ont he bottle right now with two leads hanging out of it. I assume that must be for the bottle warmer, right?

I thought that other one was a pressure sensor/sender for a fuel pressure guage, but I guess I was wrong. Glad I'm asking these questions.

Again, I'll take way more pics tonight after work.

mark kibort

yes, notch thing pointing up. i just cant see the angle. i tapped the hole in the plate through some thick metal that had a tappered thread for a good seal. the nosil should be pretty far in that nut welded to the plate, to the point of the body of the NOS/fuel nosile almost touching the plate. its also at an angle as well, so that the nosile just doesnt point straight up to the #1/#5 cylinder intake openings in the plenum, if you know what i mean.

get me a better picture of the nosile as it is mounted to the plenum but a side view.


mk

AO

I'll try, but might be a bit tight. Check back tomorrow.

mark kibort

that sounds right.
I dont think that is for the fuel , as usually the blue stuff is on the NOS side.

maybe it just was extra.

go to the nitros express site and see if you can see similar parts that you have

MK

AO

Ok. I pulled the nozzle last night to make sure it was in properly. Below is a picture of how it was installed. Notice how the fuel line is in the way of where the breather hose goes. The other picture is of the nozzle itself and how it's angled in the mounting plate. When installed, the "notch" is pointing up. But that damn fuel line made it impossible to get the breather hose on. So I rotated the mounting plate 180* and made sure the notch is still pointing up. It now points a bit toward the front of the car, but at least I can get the hose back on now. I thought I had taken a picture of how it sits now, but guess not.

Other good news is I went to RAMCHARGERS last night after work. Picked up a new N20 pressure guage, and they ordered a 12mm 1.5 to AN4 fitting for the fuel rail/line. Supposed to be in today. Unfortinately it does not have a port for a fuel pressure guage, but I can always put a AN4 "T" on there if needed at a later date.

I didn't have time to do much else last night. I hope to get the wiring all sorted out tonight.

Question: Where's the best place to go through the firewall for the wiring?

Thanks for all the help!

AO

Btw, here's a picture of the different "shots".

Big Dave

Lookin good. You think it'll be done in time for next Thursday's meeting? I'm going to want a ride in that car.

Well, maybe after you've tested it a few times, first.