Couldn't find anything regarding this specific topic in searches, so here goes.

If I understand correctly, the rail on the NXL system replaces the factory fuel rail and will supply fuel for both the N20 nozzles and the motor itself?

If that's the case, wouldn't a auxilary fuel cell be less effective, since the race gas and pump gas would mix in the rail before reaching the nozzle?

Conceivably, the only way around this is if within the rail itself, there are separate "compartments" for fuel that feeds the injectors and fuel that feeds the nozzles.

On the other hand, with the "standard" NX LS1/LT1 EFI DP set-up (part # 80010), since the factory fuel rails stay in place, the NX rail can feed straight race gas, functioning as more of a "true" auxilary rail. Plus, NX claims it's good for 500 HP, should any of us ever build a motor that can handle that much spray

BTW, this set-up is on page 11 of the NX catalog. The picture is of an LT1 manifold, but plumbing for LS1's isn't too different.

I thought both the NXL and "standard" EFI DP systems were set up similarly as far as how the rails function, but it's hard to tell from the few pictures available and NX isn't answering the phone.

Opinions?


Thanks!

 

Those are great questions. If you find the answers please post them in here <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

The rail does not replace the factory fuel rail. It just uses a rail to distribute the fuel and N20 instead of a distribution block. All u do is lift up the factory fuel rail and injectors, pop the NXL's into the injector ports then put the injectors into the NXL's and bolt down the fuel rail. Some times the rails need to be spaced up alittle like 3/8" to make up for the hieght that the NXL's added to it. An auxilary fuel cell can be used no prob, just run the input line for the noid to the presure reg and pump instead of off a schraider valve or T'ing the fuel line.

<small>[ April 02, 2003, 04:43 PM: Message edited by: BMN ]</small>

 

are you sure that the NXL does not replace the stock rail?

From the pics i have seen, it apprears that it does.

Ryan

 

Now u got me thinking, looking at the pic on NX's site to try and look a little hareder at the pic it does look like there are 4 holes which would be for the injectors to pop into. I did all kinds of searches and cant find any other pics so if ya could post up where you got to peep it that would be cool. I was figureing that they would use there exsiting rail system with the new NXL nozzles but from what your saying they are making this a very car specific kit not as universal as the 4, 6, or 8 cylinder as they say here: Nitrous Express introduces the "NXL" nozzle with Integrated Rail Technology. This plug-and-play, direct-port nozzle system is available for four, six, and eight cylinder applications. There is no drilling required, no engine disassembly and no solenoids to mount. The entire nitrous system is self-contained in the high-flow fuel rail.

but they do say its all in a high flow fuel rail. I didnt think that fuel rails were that compatible.

 

I also reread the first post to see if I misread or missed anything.

"
If I understand correctly, the rail on the NXL system replaces the factory fuel rail and will supply fuel for both the N20 nozzles and the motor itself?

If that's the case, wouldn't a auxilary fuel cell be less effective, since the race gas and pump gas would mix in the rail before reaching the nozzle?

Conceivably, the only way around this is if within the rail itself, there are separate "compartments" for fuel that feeds the injectors and fuel that feeds the nozzles."


If the rail replaces the factory one then i dont see how an auxilary tank would attach to it unless there where sperate compartments and input like stated above. If not, I wonder how hard it would be to modify it to take it. I quess it all just boils down to if u plan on running a aux fuel tank and how much u plan on sprayin. As far as the race gas mixing with pump gas, it mixes together in the cylinders anyway so I dont see any down side to it. Might be better when its pre mixed. Has anyone done a test on mixed pump/race and seperate aux tank with race only in it? I would like to see the results.

Every hour I wanna see one of these setups more and more. <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />

<small>[ April 03, 2003, 11:57 AM: Message edited by: BMN ]</small>

 

It does replace the fuel rail.....Say what you may, but Ive touched it with my own 2 hands <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> and there was no stocker on there <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

Sweet! A solid answear. What was it on? And did u see if u can us an aux cell with race gas?

 

No, no room or provision for an external N20 only source. They said that they MAY have it worked out by then for that Idea, but as of just alittle whileago, it didnt have one.

Running racegas in the entire tank ( when you only have 5 or 6 gallons total) isnt that hard.

The only thing that I worry about is fuel traveling against force when on a hard launch. there is a possibility for it to lean out for a tad, but Im not sure if thats fact or fiction <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fly By:
<strong> No, no room or provision for an external N20 only source. They said that they MAY have it worked out by then for that Idea, but as of just alittle whileago, it didnt have one.

Running racegas in the entire tank ( when you only have 5 or 6 gallons total) isnt that hard.

The only thing that I worry about is fuel traveling against force when on a hard launch. there is a possibility for it to lean out for a tad, but Im not sure if thats fact or fiction <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That sucks. Looks like I'll need to learn how to drill the intake and bend hard lines.

Oh well, at least I won't have to wait for the NXL set up to be released anymore.

 

The stock fuel rail is replaced with the NXL system. You can use a seperate fuel rail in conjunction with the NXL fuel rail if you want to use a seperate fuel tank to feed your system. You can use a seperate fuel rail and stacked nozzles to create a dual stage system or you can use the NXL system and a seperate MAF system to create a dual stage system.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Gold Z:
<strong> The stock fuel rail is replaced with the NXL system. You can use a seperate fuel rail in conjunction with the NXL fuel rail if you want to use a seperate fuel tank to feed your system. You can use a seperate fuel rail and stacked nozzles to create a dual stage system or you can use the NXL system and a seperate MAF system to create a dual stage system. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That would be correct....