Good! You could use the experience. From his initial post he is saying where it was going RICH and after following your advise, all of the sudden he is 18:1 lean? So let me get this straight: He has a Nitrous Outlet Dedicated fuel system. What Nitrous system is the OP running?

To the OP: If you would like some help with the fuel system, feel free to contact me.

 

What does air in the supply line to the fuel solenoid have to do with the nitrous system? Other than where the standalone is mounted in reference to the fuel solenoid(s). That seems like the problem would lie in the fuel supply, not the nitrous system. I am here to provide tech advice to customers, not take personal stabs at competitors.

Thanks,
Garrett

 

Then explain his original post? It was rich right off the bat and not 11:1 rich. What he described was a severe rich condition that would happen during a run. How does air in the line make that happen? I think there is more than 1 thing going on here.

 

Probably the fact that OP mentioned above the tuner put in a fatter fuel jet and bumped the pressure up 5-10 lbs. The rich condition may not be as noticeable in a lower gear when the car is under more of a load, it could also be from some other variable, but we have ran through most of the common stuff already.

I saw on your tank that your return the fuel at the very top of the tank. In some of our development of our standalones, we found that we were getting alot of air bubbles in the tank and sucked back up into the fuel supply when doing it that way, that is why all of our standalone systems return at the bottom of the tank. I could see this being a definite possibility if the return was peeing fuel right on top of where the pump picks up fuel, especially as the fuel level got lower in the tank. That is just what we found in our own research.



Thanks,
Garrett

 

Garrett, On a battery location dedicated the hose coming out of the top of the tank is the feed to the regulator. The bottom of the regulator is the return back into the tank.
Dave

 

I am not saying there is anything wrong with your product, however I am just curious to try and help the customer along. This is the unit he appears to have. That fitting that you are returning fuel to the tank is all the way at the top of the tank. This is exactly what I am talking about that gave us trouble with air bubbles in our initial R&D. Do you have a tube on the other side of this fitting to return the fuel right at the bottom of the tank? Or is it just an open hole "pissing" the fuel out the other side?

Thanks,
Garrett

 

Garrett,
You do realize that Nitrous Outlet is the company that created and brought to market the dedicated fuel systems right? We had this product line on the market well over 5 years before NX started building a cheaply made knock off.

Your R&D was hey lets knock off Nitrous Outlets ****.

That being said the return does circulate back into the top of that tank. But the pump sucks from the very bottom where it is full of liquid. There is no problem with the design.

Dave

 

Folks, lets keep this cordial or I'll have to take this thread to jail.

 

Yes sir..

 

Dave,

I’m only trying to help the customer. There is no need to act that way.

Oh and for the record, Nitrous Outlet did not invent stand alone fuel systems. Mike Wood (the owner of NX) has been building and using stand alone fuel systems since the 80s. I’m not saying that NX invented stand alone fuel systems… I’m just saying that Nitrous outlet did not invent them either.

FYI, Here are a few pictures of the NX Mustang with a NX stand alone fuel system which was built back in 2006.

 

We release the all in one dedicated fuel systems around 2002-2003. I owned a speed shop back then and got tired of using a JR dragster fuel cell with a Aeromotive street rod pump and regulator, or holly blue and regulator. I designed the first system off my personal 1999 HOSS. There is actually a thread here on LS1tech somewhere of the process.

Dave

 

The point is you didn't create the first standalone system like you said you did above. I am done posting on this thread both for maturity reasons and the fact that this has totally gotten off topic. I am here to offer non-biased tech advice and help the customers in any way I can. Not to take stabs at competitors.

Thanks,
Garrett

 

The point is I did. WE brought to market the ALL IN ONE dedicated fuel system. Before we did that everyone was making them the same way I was back in the speed shop days.

 

Finally have some time to check in and see what's going on and if I got any more advice on my problem. Let me clear some things up.......

First, car was taken to a tuner to have it tuned for spray. Tuner had the same lean a/f as I did, so bigger fuel jet was put in to see if that didn't rich'n the mixture up. It did, along with more fuel pressure being needed. Car had a good a/f in first and second, but in third it fell on its face and was super fat.

I picked car up like that and was going to figure this out myself. This brings me to where I'm at currently. I put the 100 pills in and was seeing what's going on. No fuel is being sprayed, but when you take line off the plate and put power and ground to the solenoid it sprays so the noid is doing what it's supposed to do. Which is leading me to believe something is going on with standalone pump or regulator. Pump works tho, cause it's sending fuel to the noid.

Thanks for all the help so far.


Forgot to add, the A/F with the kit armed, and the bottle CLOSED is 12.2-12.5. Figured it would be a lot richer than that

 

I would fill the standalone all the way up and see if that changes the way its acting. My bet is on the way the return is plumbed into the tank. You should be tuning for about half a point richer on nitrous wide open than what you are running on motor.


Thanks,
Garrett

 

Welcome back OP

 

Did you ever get a chance to flow the fuel side with a flow tool?

 

Garrett, I did fill it up and the A/F is what I'm seeing on a full tank. Seems to get a little leaner as fuel goes down.

We just welcomed my son into the world last week. Things have been a little busy for me sir

No sir. Can't seem to find one local and I'm not gonna buy one to use once, lol

 

Congrats on the baby boy. If I knew that kids were so fun I would have had them 30 years ago, lol

 

Kids are fun, just super expensive.