just jump into the convo and understand nothing....

I am not gonna use nitrous forever on my current stang.If I am not granted my hardship license I will probly play with it for a week or something like that or just a few times at the track to see what I can get cause all my friends think im a bitch for not doing it because I have common sense and worry about my only transportation ..I cant drive right now but if I blow it up and then here comes May of 04 when I do legally get my license back then where am I? I cant get to te fire academy in Ybor and or anywhere else so I am only gonna play around with the nitrous(maybe...)

so to answer your question, direct port is way the hell outa my league

 

I am gonna do it right Derek.I never have anything done half ass because of that reason, its either all the way or nothing cause I cant blow my shit up.

I might throw a 125 wet shot on it for a night or two but thats it, nothing crazy...

 

may of 04, not a year... lol
but close enough

 

Goopster you such an ass. I was kidding in my posts and even went so far as to explain how spiking the fuel pressure regulator could flow more fuel at the same injector duty cycle. Your stubborness combined with lack of brainpower is what puts me at odds with you. Its very frustrating. I have installed several dry and wet kits on mustangs and know how they work. I would be more than happy to share the info with you, but its seems you always argue with anything that doesnt agree with youre initial thoughts.

Re read my post and stangerangs posts...all the answers your looking for are right there.



Lol...i dont make you look like an idiot...you do a very fine job of that all by yourself

 

no the answers may be there for you, mr fucking rocket scientist but thats why there is a tech forum here....for people who dont understand something.I dont, still dont after all that and yet you arent man enough to share the knowledge because trying to act like your god over me by calling me stupid and what not has made you the stubborn one, not me......
explain this and I may understand.
I see it working as this
if my fuel pump is not stock(flows more then it should for stock)
and I run an aftermarket fpr in with 19 pounders and a dry kit.
How does the fpr make more fuel for the nitrous?My 19 pounders are capable of only what they push right? or wrong ?

Can they push more? Does the fpr increase the voluem of fuel sprayed by the injectors?

if you answers those I just might understand......

 

RC Engineering

Ok..the above is from a website called RC Engineering. They deal with injectors and fuel systems. Lots of good info on that page.
The equation is how to fugure what flow rate an injector will have with a change in fuel pressure. lets run through the changes and then Ill try to explain it a lil more.

Ok first we know you have 19 lb/hr injectors. But you also have to know what your fuel pressure is to make sense of that. I believe yours is 42 psi as set by Ford from the factory. So the actual rating of your injectors is 19 lbs/hr at 42 psi.

Now if you were to change the fuel pressure...it would also change the flow rating of your injector. So lets run it through the equation.

sqaure of new pressure(75 psi)/old pressure(42psi)=1.336xold flow rate(19lb/hr) = new flow rate(25.4 lb/hr)

So if you set the nitrous kit up the way the instructions say to and spike your fuel pressure up to 75 psi using the FPR your 19 lb/hr injectors now become 25.4 lb injectors.

now go to the website to see how much HP 25.4 lb injectors can deliver. Probably around 400 crank hp.

To understand why an injector can flow more fuel at higher pressure you need to understand what an injector is. Basically an orifice with a needle that opens and closes to stop or start the flow of fuel...nothing more. It does not push fuel or regulate fuel in any other way except the amount of time that the injector stays open or closed. So naturally if the pressure behind a closed injector is 42 psi and the injector opens for 1 second it will flow a specific amount of fuel. Now jack the pressure behind that injector up to 75 psi and open it for that same 1 second...obviously it will flow more fuel through that injector in the same 1 second. Get it?

How the nitrous kit spikes the fuel pressure is just mechanical means. Each brand dry kit has various methods that all spike the pressure at the FPR only when nitrous is activated. During normal driving you are always back at the normal 42 psi.

 

I and others dont mind helping you at all. Its just that in the past it seems that people have tried lengthy explanations that were pretty good only for you to dismiss them with a rude comment. Try to open up that brain a little and let it soak in...its all good. I know that right now you are trying to make pieces fit on how this stuff works...stay with it and you will have the big picture soon.

 

Al, good info man..

Chris, I know you're a good kid since i've met you face to face, but I will say the way you come across in your posts is completely different. If I may offer a suggestion, (don't take this the wrong way). Grow some skin! Someone makes a BS comment, don't respond, just adding fuel to the fire and it's not needed, besides it makes you look like a fool at times.

If anything seems to fit this board.. less is more...
good luck with your nitrous kit and save the racing for the track..

 

on a Mass air equiped vehicle, chris. The MAS detects the denser air charge and compinsates with a higher fuel presure. Im not sure if it works the same on speed denisty cars

You really cant go wrong with a wet kit, even on a shitty tune. just make sure your pilled up properly