Running N2O on an 04 GT
 

I have the Edelbrock 80 hp dry kit on an 04 GT. I want to step up to 150-175 and I know I can't spray that much without some kind of retard. What do I have to use to accomplish this. I have heard that I have to run 2 MSD DIS4 boxes and coil pack etc. Any help would be appreciated. Thanks in advance for the help.

That much juice is going to kill your engine regardless of what you set your timing at, a 125 shot should be your max on stock internals. You have coil over plug setup not coil packs. you need nothing but a tune and colder plugs.

I have the same kit, don't get greedy with the juice! I wouldn't run anything more than a 125 shot, which is really kinda pushing the motor! If your car can hold the 150-175 shot it might last a few passes at the track! Although I think your intake will be gone on the first pass! ;)

Miguel :D

Yeah, plastic intake go BOOM!

The pistons in the mod motors aren't too strong either.

(Ryan)

As a nitrous user, I agree with these guys big time.

Use this scale below for help. I am assuming bottle pressure is at 950 1000 psi for the examples below:

50 shot: Stock timing is fine and stock plugs are ok too

75 shot: May want to retard timing one degree using a chip or tuner. One step colder plugs are a good idea too especially in the summer.

100 shot: Timing should be retarded one degree and definately use one step colder plugs gapped at 0.35. Stock fuel system is fine still at this point

125 shot: Max safe point for stock fuel system. Definately one step colder plugs and timing retarded one degree. May even have to retard timing two degrees at this point (based on detonation).

150 shot: Requires upgraded fuel system (pump or pump and injectors). Might get away with stock fuel pump and pressure regulator. Two degree of timing should be backed out and two step colder plugs are probably needed.

175 shot: Start to think about upgrading the bottom end of the motor. Twio to three degrees of timing should be backed out and two step or even three step colder plugs needed. Definate fuel system upgrades.

You guys have no clue about nitrous do you?

anyhow, you can run a 150shot safley for a long time, my 99 4.6 2v f150 had it for 3 years and countless bottle ran thought it. but you will need a pump upgrade for sure. and even then i dont know about 150 dry. there is some hear-say about wether you should upgrade at 125hp or 150, if it was me i would do it for anthing higher than 100, becuase you need fuel so my not and its cheap.

You will most likly need to upgrade injectors with a 150 dry shot as the stock injectors are good for 304 hp and with 150 you will be over that so 24#ers might be a good idea. but if i was yo ui would sell that kit and go buy a wet kit and run a wet 150shot with a aviator fuel pump and steeda timing adjuster with timing set back to 6-8* of timing.

oh and to run wet on the 4 you cna either tap the stock fuel lines or get 99-03 fuel rails because you dont have a fuel tst port to get fuel for your wet nitorus kit should you go that route.

I have ran and owned my my 9.86 second 90 Lx running N2o, please do attempt to tell me what I know about anything, did you know your F 150 has a metal intake? Thats one of the biggest reason why you could , if you knew aboout a hundred or so 4.6 guys like I do, you would know that most who try to run over 125 blow them up, or pop the intake if you want to give advise, do so, but make sure you do so without trying to insult our intellengence, I have owned and raced fords for over a decade running every kind of setup imaginable, on just about every drivetrain.

If you know so much, why did you tell him to upgrade to the 99+ fuel rails? He has a 04, did you not read what he posted? They didn't change the fuel rails in 04 Good advise dude.

Also the other guy your insulting is currently runnning a 100 shot venom kit, hmmm, yeah he has no clue, and guess what, he is sporting the arming switch kit that I INVENTED, yeah, we don't not crap about Nitrous.

hha i love when people get angrey on the internet. i say you guys have no clue cause you say things such as no dont do it it will blow etc..

and the 4.6 f150s dont have a all metal manifold only the upper is metal the bottom is plastic just like the mustangs so it can also blow from backfires. just so ya know.

and the 04 do not have a test port where you can get fuel from, i think even the 03's might be this way also. so maybe you should go check first as i am almost positive it does not.

And most of the people you know who blew there motors it was wet right? did they use a window switch to make sure it only turns on above 3k rpms and off before the limiter so no nitorus could puddle? i had one on my truck and 3 years later its still out in S.C. tearing up the roads. PS i disnt insult you i just think most people on the internet just automaticly say nitrous is bad such as your "plastic intake go boom" comment. no hard feelings ok :)

Dude, I worked on a 02 4.6 F150 for months it has a all metal intake, the reason why people don't just bolt them up to a stang is they are way too tall and flow like crap, Maybe your 99 didn't but 02 and up definetly does. the fuel rails are the same as far as I know, I have friends with every year and those who run wet kits. which is most common due to a returnless fuel system haven't had any issues with getting fuel, I will check.
You refer to me as some guy in the internet, like I have never run N20. That funny seeing I ran street driven N20 stangs into the 9's.

And ps, you did insult, when you say " you guys really have no clue about nitrous do you" sorry, thats an insult. No hard feelings.

Hey spike, you said S.C. Do you mean this as in South Carolina, just wondering cause thats where Im at. Sorry to hijack, dont run a higher shot than 125 on the stock motor, just be safe and do it this way. Just my 2 cents...

well i traded in my nitrous feed f150 in for my mustang a few months ago.

and the newer 03-04 or maybe its only the 04's have no fuel test port.

well alot of people have and do on daily drivers run 125-150+ hp shots but this is up to the owner i know our blocks and internals are good for 450hp so i'm not worried about a 150shot breaking it.

Spike, I stand behind the guidance that I offered earlier in this thread. I offered this advice to those that have GT's, with stock internals, and are interested in a safe setup. You can always push the limits and do whatever you want. Always know that as you increase the size of the shot, you increase the risk of having problems and just because you or someone you know is running a 175 or 200 and still has a motor does not mean that is a smart thing to do for someone else.

Another thing, the term "shot" can be missleading. A 100 shot of NX is actually 100 rwhp, while a 100 shot of another kit might only be 80 rwhp which means less required of the fuel system and motor internals. There is no hard science when it comes to nitrous.

If I had a 99 GT with a lot of miles on it and it was a dedicated track car I would not hesitate putting a 200 shot and hoping for the best.

I have also heard that 500 hp is safe for the stock motors...you know what they say about opinions? :D

Spike africa :rolleyes: ...yeah why don't you try a 150-175 shot on your 2v and see how many passes it will hold! The stock motor can only safely hold at max 400 RWHP without having any problems! Anything more than that and you are asking for trouble! You must be thinking all 2v's have an intake like the bullit models! :confused: ...I know my share of 2v tech and can tell you a 150-175 shot will kill that motor! Will it hold its share of pases? Yes. Will the motor last long? NO, 2v's dont' have forged internals and therefore can't hanlde that must power! If these were pushrods than it be a whole different game! :)

Miguel

I wouldnt dare run over 100 shot but thats just me. I know thats basically the v6's limit.

ok once again my truck whoch was a 99 with a 2v 4.6 same as a mustang but with a metal upper manifold and plastic lower. ran a 150shot for 3 years. no bull****. also if you go over to www.modulardepot.com you will many and i mean many people use a 150shot and yes there are also a few not sure how many but over 15 using 175's most of these cars are daily drivers like us.

And by the way i am going ot be using a 150 shot on mine. i will let you know when or if it blows from nitrous, but i bet the real reason it will blow is from me over revving it before the nitrous backfires and kills it or detinates it. all it takes is nitrous know-how and some saftey things. now you can say 150 will blow and motrs can handle only 400hp etc.. but i know better.

i didnt say your info was off i think you are one of the few that gets it when it comes to nitrous. i agree with most of the stuff you said. mins the 150 being a death wish. and a few other things but i forget what they were.

Dustin...OK fair enough!


(Group Hug)

the difference in the fuel rails that he was talking about is the schrader valve...in an attempt to save money Ford quit putting these on the passenger side rail sometime between 02 and 04...but my 03 has it :confused: anyway, I believe this is what he was referring to because it is where the kit hooks up to the fuel system.

BTW, if you go with a Venom kit there is so much less BS to worry about with the instal.

bingo this is also called the fuel Test port. but thats getting into fancy tech talk.

150 HP shot of nitrous is dangerous on a stock GT. Of course everyone can make their own decisions based on their situations, but its trouble to say a 150HP shot is safe, and have someone go out and take your advice with their 5 figure possession.