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Nitrous affecting plastic intake manifold on newer GT Mustangs

3756 Views 22 Replies 10 Participants Last post by  kenzostang4
I am thinking about putting nitrous on my 2007 GT, and I was wondering if anyone who is already running nitrous has had intake manifold problems, it being a plastic intake. I will be starting out with around a 75 shot for a while, but would like to eventually get to a 150, after getting use to the change. I also have the X3 SCT tuner, and i believe it will allow me to adjust the timing, after I find out how many degrees to adjust it, which should help, and also will be running Octane boost + 93 octane, to make it a little more on the safe side. Anyone have any advice on the topic?? Thanks Scott

(Currant mod's)
X3 Sct 93 Tune, 3.55 factory gear, WMS intake w/ box, Flowmaster axle back mufflers, and Eibach lowering springs.
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For the love of God don't run octane booster, especially with a colder plug.
For the love of God don't run octane booster, especially with a colder plug.
I was planning on use a colder plug, An NGK-R plug actually. So do not use octane boost if i am useing a colder plug? Haha sorry not to smart when it comes to the tech stuff?
I was planning on use a colder plug, An NGK-R plug actually. So do not use octane boost if i am useing a colder plug? Haha sorry not to smart when it comes to the tech stuff?
Never use octane booster period... It's the fastest way to foul a set of plugs. Just use good gas!
Would you suggest maybe adding a gallon or so of race fuel (110 octane) with it? I was told it was just safer?? did you happen to have any thoughts about the intake Stl?
Would you suggest maybe adding a gollon or so of race fuel (110 octane) with it? I was told it was just safer?? did you happen to have any thoughts about the intake Stl?
A gal of 110 unleaded won't hurt any. As for the intake, haven't heard of any issues running nitrous.
you wouldn happen to know how much timing to adjust either would you?
75 shot, they say you can run stock timing,it is already retarded from factory.I went with 100 shot, and had dynotuned by Alternative Auto.Now i know it is right.The difference is unbelievable!
1* of timing for every 25 HP on the Nitrous.
Never had or heard of anyone having problems with the intake.
Thanks for all the inputs! I will let you guys know how it turns out. Out of curiousity, i have been told a 150 shot i the max you can run safely through a over all stock V8. is that correct?
1* of timing for every 25 HP on the Nitrous.
Never had or heard of anyone having problems with the intake.

Unless you have a backfire, POOOOOF! :hihi:
Unless you have a backfire, POOOOOF! :hihi:
+1 on the Pooooof. Now that would be ugly...:happyhapp :nono:
i too am looking into a 150 shot of N20. first off, most V8's will handle an extra 200 hp before beefing up the internals is needed. You could run the 175 shot if you wanted and would be fine as long as you are carefull and get a good tune. I recommend Zex for your nitrous kit as they are the only ones so far who are on the ball with the fuel tapping issue on the 2005 + stangs, and they have outstanding tech support. Plus, thier kit is the easiest ive ever seen to install. A monkey with a wrench could do it. I emailed Zex last week in fact and the tech advised me the following for a 150 shot:

1. Plugs that are 2 heat ranges colder than stock

2. either a booster fuel pump or a higher HP rated replacement tank pump

3. no less than 93 octane

4. a very good tune

now, on the pump, im going with the booster pump that Zex sells, it is reasonable, around $200, vs a hell of a lot more $$ and work dropping the tank for a replacement pump.

im also going with thier rpm window switch (#82085) because you can get more control over the N20 injection. specifically, you can program it to work only in certain gears, and at certian rpm levels, moreover, you can lock it out at high rpm say 6,000, not to inject any N20 at all. i dont miss many gear shifts but my biggest concern with my stick shift GT would be getting too excited and missing a gear with the N20 shooting in full blast, and the engine revving quickly to 6,000 rpm, not a good thing with that hot of a shot of N20. window switch will prevent just that sort of tragedy.

here, this will help you also, it is the install instructions for everything Zex sells. The N20 kit, booster pump, accessories, everything. All of them in .pdf so you can save them. The 2005+ install instructions tell you the jets to use and the timing corrections needed for each HP level.

INSTALLATION INSTRUCTIONS

ive had N20 before, IT CAN BE DONE SAFELY. no matter what HP youre going to run, even the conservative 75 shot, i recommend you make a run, then pull #1 plug and check it. plugs dont lie, if its being burnt or melting, you have a problem. when you step up to another level, make a run, and pull the plug, as long as it is burning clean and not melting, youre okay. if its melting, get with your tuner or up your octane, or both. i hope this helps you.
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i too am looking into a 150 shot of N20. first off, most V8's will handle an extra 200 hp before beefing up the internals is needed. You could run the 175 shot if you wanted and would be fine as long as you are carefull and get a good tune. I recommend Zex for your nitrous kit as they are the only ones so far who are on the ball with the fuel tapping issue on the 2005 + stangs, and they have outstanding tech support. Plus, thier kit is the easiest ive ever seen to install. A monkey with a wrench could do it. I emailed Zex last week in fact and the tech advised me the following for a 150 shot:

1. Plugs that are 2 heat ranges colder than stock

2. either a booster fuel pump or a higher HP rated replacement tank pump

3. no less than 93 octane

4. a very good tune

now, on the pump, im going with the booster pump that Zex sells, it is reasonable, around $200, vs a hell of a lot more $$ and work dropping the tank for a replacement pump.

im also going with thier rpm window switch (#82085) because you can get more control over the N20 injection. specifically, you can program it to work only in certain gears, and at certian rpm levels, moreover, you can lock it out at high rpm say 6,000, not to inject any N20 at all. i dont miss many gear shifts but my biggest concern with my stick shift GT would be getting too excited and missing a gear with the N20 shooting in full blast, and the engine revving quickly to 6,000 rpm, not a good thing with that hot of a shot of N20. window switch will prevent just that sort of tragedy.

here, this will help you also, it is the install instructions for everything Zex sells. The N20 kit, booster pump, accessories, everything. All of them in .pdf so you can save them. The 2005+ install instructions tell you the jets to use and the timing corrections needed for each HP level.

INSTALLATION INSTRUCTIONS

ive had N20 before, IT CAN BE DONE SAFELY. no matter what HP youre going to run, even the conservative 75 shot, i recommend you make a run, then pull #1 plug and check it. plugs dont lie, if its being burnt or melting, you have a problem. when you step up to another level, make a run, and pull the plug, as long as it is burning clean and not melting, youre okay. if its melting, get with your tuner or up your octane, or both. i hope this helps you.
A BAP or better fuel pump would be a good idea. Run out of gas and you'll be picking up tiny pieces of aluminum off the road. :)
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hey stl, whats a BAP? and is there problems with the booster pump I need to know about? it is supposed to support up to 650 HP which is no where near where I will be at, so i figure it should do the fuel job fine. fill me in bro, as im now shell shocked over your vision of aluminum pieces all over the road....:shocked:
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My plastic intake is holding up fine but the rubber tires seem to wearing a little more these days!
i run a 150 shot with a tune. no fuel pump booster and i run ht0 plugs. also you dont have to drop the gas tank the fuel pump is located under the rear seat juts remove it and its right there easy
what fuel pump did you go with ? and did you have to run an adjustable fuel regulator ?? how do the HT0's work on a day to day driving ?? have you fouled them out yet or lost power when not using the bottle ?
thanks,
mark.



i run a 150 shot with a tune. no fuel pump booster and i run ht0 plugs. also you dont have to drop the gas tank the fuel pump is located under the rear seat juts remove it and its right there easy
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stock fuel pump...hto are great but 100$ a set no fouling them and lots of power but acorse its all in the tune..... i have a nos tune and a 93 octane tune
stock fuel pump...hto are great but 100$ a set no fouling them and lots of power but acorse its all in the tune..... i have a nos tune and a 93 octane tune
What kit are you running? NX by chance?
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