Here is the response I got from Nitrous Express about if they make a kit for our application:
Thanks for your inquiry. The Nitrous system is very safe when used properlyand all of the safety items are installed. The added cylinder pressure willcause the engine to wear a little faster than it would in a naturally aspirated form. This condition would occur if any power adder was put on your vehicle (such as a turbo charger, super charger). The nitrous is basically oxygen and nitrogen, when combined they form a manageable way to put the oxygen in your engine. We have done countless hours of testing with our (Air/Fuel) flow bench and chassis dyno finding what Nitrous and Fuel ratio operates best. We do offer a Nitrous system for your vehicle. Part #20921-10 is designed for your car and is adjustable from 35-150 hp. The stage one EFI comes complete with 10lb bottle, D-4 feed line, bottle brackets, fuel and nitrous solenoids (with a lifetime warranty), wide open throttle switch, patented shark nozzle, 35,50,75...etc hp settings, 60Amp relay, wiring harness, Stainless Steel braided lines, all mounting hardware, switches and detailed instructions. I also recommend the GENX-2 Upgrade, You get the bottle heater kit, purge valve, nitrous pressure gauge, fuel safety switch, blow down tube and fitting. The RPM activated window switch is also a good safety item to have. It turns the nitrous on when the 3000 RPM is reached by the engine letting the window switch ground the nitrous relay completing the circuit letting the nitrous activate. When the max RPM is reached the window switch turns off the nitrous by removing the ground to the system relay. The on and off RPM is determined by RPM chips that go in the window switch.You also have to change your spark plugs two steps colder non-platinum, and gap the plugs at .035 I recommend NGK. For pricing please check out our website for a dealer near you. If you have any more questions please let us know you can visit our web site at www.nitrousexpress.com or give us a call at 888-463-2781. Thanks again.

"The added cylinder pressure will cause the engine to wear a little faster than it would in a naturally aspirated form"

^^Understatement of the century~

If you plan on running the SRT8 GC only on the track, this would be a wise investment.

"The added cylinder pressure will cause the engine to wear a little faster than it would in a naturally aspirated form"

^^Understatement of the century~

If you plan on running the SRT8 GC only on the track, this would be a wise investment.

There really is no concern with running Nitrous more then any other power adder(as long as it is installed correctly, as with any product). It has a bad name for no real reason. If you really research it, there is no significant difference in doign this or running a turbo or SC. Both add more O2 into the cylinders. Period. Comments like the one you made are what alot of people say until they really research the technology. Here is a quote from here:

What's all the Nitrous stuff then?

First of all Nitrous Oxide (N2O) is neither explosive nor even flammable, it is an oxidising agent. That is to say it a compound that readily releases oxygen molecules to promote combustion, on it's own it will not burn, not even a little bit.

The way nitrous works is in fact identical to the end result of turbo and superchargers and that is to cram more oxygen into the engine cylinder than the normal intake vacuum cycle will allow. All this extra oxygen allows more fuel to be squirted into the chamber and be of the correct mix to burn, producing more heat and pressure and therefore more power.

N2O has several big advantages over mechanical pumps.

* Mechanical devices compress atmospheric air, and when you compress a gas it heats up (turbochargers are esp. bad for this by their very nature of using exhaust gases to power them). All this extra heat entering the combustion chamber promotes detonation hence the use of intercoolers. Nitrous oxide however enters as a liquified gas and expands on leaving the injectors, and as a gas expands it's temperature drops thus inhibiting detonation.
* Another bonus relative to detonation pevention is that as the Oxygen molecules are released, Nitrogen is freed which acts as a buffer against the onset of detonation.
* For any given volume of additional gas introduced, N2O has 50% more available oxygen than atmospheric air.
* Cost and complexity. A basic nitrous set up will cost between £400 - £600 giving as much extra power as the jets fitted and your engine will safely allow (generally upto 50% over stock), it can be fitted in an afternoon with no major modifications to your stock engine. Try that with a turbo!

The big disadvantage is of course that the power only lasts as long as the bottle, but trust me on this, the benefits FAR outweigh this single limitation...

I bet this truck would run real good with a nice wet system.
Even a little 75 shot would kick it in the ass.

There really is no concern with running Nitrous more then any other power adder(as long as it is installed correctly, as with any product). It has a bad name for no real reason. If you really research it, there is no significant difference in doign this or running a turbo or SC. Both add more O2 into the cylinders. Period. Comments like the one you made are what alot of people say until they really research the technology. Here is a quote from here:

Until I research the technology? Your preconceived notions are laughable - my paradigms are not fallacious because they do not coincide with yours. If it is so safe, the technology would be ubiquitous, but in fact, the exact inverse is true, which is why only less than handful of people have implemented this technology in the SRT8 GC.

The response from whomever is indicative that N20 will indeed wear your engine faster than status quo, which is why many people view it as detrimental.

I am more apt to choose a supercharger, because the power is always available, bottles do not have to be refilled, and less stress and wear occur in the engine IMO. Keep in mind, I am street driver, not a track star, which is why I feel the way that I do. If I was able to solely run my Jeep on the track and longevity was not an issue, I would have already have N20 installed.

Go ahead, add some N2O and enjoy :) (and post some pics)

I am sorry if I made improper assumptions about your knoledge. However, the fact is that while SCs are a good power adder they actually put MORE strain on your engine then Nitrous does. Why? Becasue the power for the SC comes from the crankshaft, and thus more static load is placed on the engine. In order to make an additional 100HP with a SC you are having to create 150HP at the crank. The twin screw SC I had on my AMG required 50HP to operate and it was smaller then what the SRT8 would require, not to mention that Centrifugal superchargers require more power then a twin screw. Also, nitrous does not force air into your cylinders like an SC does. It just increases the oxygen levels of the air that is being pulled into the cylinders through the Natural Aspiration process. Superchargers superheat the air, nitrous cools it decreasing the chance of detonation. Both of them require added fuel becasue of adding more oxygen, but as I said earlier nitrous requires less fuel to make 100HP to the wheels, thus less drastic fuel mods are required to make equal HP. A SC is putting added load on you engine constantly since it is always "on". Nitrous does not have this problem, as your engine runs normally until you activate it. Nitrous is also considerably cheaper, as the average kit is under $1k vs the $4-5k for a SC kit. The disadvantage of Nitrous is that it needs to be replinished, and thus has a slight hassle factor and some ongoing cost depending on how much you use it. You said that Nitrous is good for a track only truck, I would flip that on you. When I drive my truck daily I would have no increased wear on the engine, as it is, in effect, stock. Edit: Nitrous is also good on daily drivers becasue you gas mileage is the same as stock until you hit the switch. A SCed engine needs more fuel pretty much all the time.

I posted this on the Blue site. Many said it is a gernade waiting to blow? A easy power adder but with the right tune. Easy to install and can be removed when going in to the dealer for warranty. I bought this SRT8 Vehicle to race (so do the Engs) not just a driver so power adders do interest me. MO Gene

Most people that say its a grenade waiting to blow have probably never even used nitrous on any of there cars. I have used nitrous on 3 of my cars without any problems. These kits are very safe, just make sure you run colder plugs and there is no detonation.

I also have run nitrous at the track & on the street(not on my GC though). Here are my thoughts on dry & wet nitrous kits.

Wet kit:

Good:

Excellent power potential
Reasonably easy to get the jetting right when used in conjunction with the correct style of intake manifold
Very low cost for the HP returned
Small shot won't even require PCM reprogram

Bad:

Cold plugs hurt daily driving
Potential for catastrophic engine damage
Our intake manifold design doesn't lend itself well to single nozzle style system because of the long runners above the plenum.
Nitrous costs over $3 a lb and a 10 lb bottle will last about 3-4 minutes


Dry kit:

Good:

More compatible with our style of intake design
Still very good power potential
Less plumbing & only 1 solenoid

Bad:

Even a fairly small shot requires PCM retuning
Difficult to create a single PCM program that works well both on & off the bottle
Greater potential for "boom"
Won't support as much HP as a wet system


The ideal system for the SRT8 engine would be a wet kit with a fogger nozzle plumbed into each runner just above the mating surface of the head & intake manifold. That way the fuel/nitrous mix is injected directly in front of the intake valve.

Something can happen anytime you use a major power adder like nitrous or a supercharger. Nitrous is good if your just looking for a major power increase once in awhile while something like a supercharger is good if you want that boost (no pun intended :) ) all the time.

A 50-100hp shot is generally safe. 150hp jets can usually be used without a problem but the changes of something happening are great as the hp level goes up. I've used alot of nitrous over the years. Haven't blown up a more yet! :)

Something can happen anytime you use a major power adder like nitrous or a supercharger. Nitrous is good if your just looking for a major power increase once in awhile while something like a supercharger is good if you want that boost (no pun intended :) ) all the time.

A 50-100hp shot is generally safe. 150hp jets can usually be used without a problem but the changes of something happening are great as the hp level goes up. I've used alot of nitrous over the years. Haven't blown up a more yet! :)

I agree. I would just make sure you went with a wet system and an window switch. A 100 shot would be fine in this car. I would also run 1 range colder NGK's for a 100 shot, which should NOT affect daily driving...

Guys,
I have the 500HP package from JH done on my car.. can i add the 100 shot on these modes? or shall i lower it?
I want to use Nitrous.:D

Thanks

wow if you dont mind me asking how much did that 500 hp package cost ??? you can use the 100 shot but i would use the 75 shot to be on the safe side....

how much did that 500 hp package cost ???


At least $10,000
http://www.hennesseyperformance.com/hennesseyperformance/ItemDetail.php?Item_ID=231&cart=zSgYemXf&DoThis=Dodge+Magnum+SRT8+HEMI&ActionReq=Where

Guys,
I have the 500HP package from JH done on my car.. can i add the 100 shot on these modes? or shall i lower it?
I want to use Nitrous.:D

Thanks
Have you asked JH for advice on N20 for it?

Have you asked JH for advice on N20 for it?

No I didnt ask him, I was afraid he will start to tell me why and why,, you have already the 500HP on...

So, i didnt,, but I want to have the NOS for emergency issues ;) suppose there is a really fast car next to you.. you get my point? :D

Man the 500HP package is amazing, trust me, it feels like I have nitrous on compare to stock !!

At least $10,000
http://www.hennesseyperformance.com/hennesseyperformance/ItemDetail.php?Item_ID=231&cart=zSgYemXf&DoThis=Dodge+Magnum+SRT8+HEMI&ActionReq=Where

I got a good deal with him, and trust me those guys know what they are doing.. they have one word to you, and the result is impressive.. :)

I am glad you had a good experience with him.I have heard all sorts of horror stories commong out of his shop.What are you 1/4 mile times now,and what work did you have done?

I didnt have the chance to take to the track.. it feels so fast.. I have tried with a friend of mine who has a stock GC SRT-8 and i can easly kick him from 0-whatever.. i can jump in front of him when we floor from 0

my mods: Heads/headers/off-road pipe/Cat-back/CAI..

there is a low tone ..different in the car than stock due to the long tube headers & Cat-back

I am glad you had a good experience with him.I have heard all sorts of horror stories commong out of his shop.What are you 1/4 mile times now,and what work did you have done?

BTW, what stories do people talk about that workshop? you scared me man, do you mean the quality of work?

BTW, what stories do people talk about that workshop? you scared me man, do you mean the quality of work?

Most of the historical complaints have been about failure to deliver on schedule. Sounds like you got what you paid for. Did they provide you with dyno sheets?

Check this link to learn about John Hennessey:
http://www.cherokeesrt8.com/forums/showthread.php?t=622&highlight=hennessey

Here is mine

the NX has never been sprayed. i have not even put a 100 miles on the motor when a piston broke. the dealer says this happens because a misfire and the pistons are too thin. they just would replace the whole block and start over. well that sucks. See i don't have this motor in a jeep, but my truck. I am one who has a 1500 ram and dropped this beast in there. well the motor would be swapped if in a car or jeep, but not mine. so i called Indy cylider heads and we are looking at doing a stroker 426. I work for royal purple and will be there this week end to see what it will take. lets hope the price is right.

here is the motor

Here is mine

Now that looks like something you can easily remove before you take it to the dealer with a piston hangin out the side.........what do you think Gene???

I wish mine could be changed out by the dealer, but my 6.1 is in a 1/2 ton truck. There is no such thing as warranty for me.

Great kit! :)























That's going back OLD SCHOOL!!! :D SUCKERS! :D

Holy crap, Anthony. You are going way back to the time when I bought mine. Ahh, the good ole days when we had nothing for mods.

im thinking of installed some nos in my truck what would be the best kit?

im thinking of installed some nos in my truck what would be the best kit?

I don't understand what you're asking when you say "installed some nos" since "nos" is a generic term used by ricers to represent all nitrous kits. Nitrous on the other hand, is the term those of us with V8's are larger prefer.

If you are in fact inquiring about installing nitrous on your Jeep, both Zex and Nitrous Express make model-specific kits for our Jeeps.

Don't say NOS unless you want to sound like some dumbass ****ing *******. :D :eek: