NOS Setup

I have a 300 shot fogger system for the first time. Have a few questions. I have the high flow heads, forged pistons, and NOS cam.

How many degrees should I back off the timming per every 100 shot?

Is that at the total timing @ 3500 rpm or is this timming retard only when the NOS is activated?

With the motor starting at 12 degrees advanced at 1000rpm, do I need to worry about hooking up the start/retard switch on my MSD 6 Digital ignition?

And "Tank Pressure....When is it recomended to use a tank heater?

I admit, I am a total idiot on the NOS but I am willing to learn so I can get into the 10's on the strip.

I didn't realize "Nitrous Oxide Systems" made cams?

I didn't realize "Nitrous Oxide Systems" made cams?

HAHA.....

Yea anyway if your a total noob to nitrous and your asking question likes this I think you need to start with a 100hp shot of nitrous and slowly work up from there.

I have a 300 shot fogger system for the first time. Have a few questions. I have the high flow heads, forged pistons, and NOS cam.

How many degrees should I back off the timming per every 100 shot?

Is that at the total timing @ 3500 rpm or is this timming retard only when the NOS is activated?

With the motor starting at 12 degrees advanced at 1000rpm, do I need to worry about hooking up the start/retard switch on my MSD 6 Digital ignition?

And "Tank Pressure....When is it recomended to use a tank heater?

I admit, I am a total idiot on the NOS but I am willing to learn so I can get into the 10's on the strip.Man you are time bomb waiting to happen. Starting out with 300hp of nitrous is a bad thing. I've never heard of a Nos cam but here are a few helpful hints.

First of all you have to back your timming of 2 degrees for every 50hp of nitrous. You need to start of with a small amount first. Why do you feel you need so much? The more nitrous you use the more retard you are going to need. Start retard IMO is not something you should'nt be worried about right if your a beginner save that for later down the road.

Secondly after 125 to 150 shot you need to see about adding a secondary fuel pump and larger injectors. You see the key to nitrous is to make sure you have enough fuel in the cumbustion chamber when the nitrous hits. If you don't it causes a lean condition and that will grenade your engine. I saw a guy in a datona do it and needless to say the car was fubar bigtime. Starting off with 300hp of nitrous is exactly what you don't want to do. Start off with 100hp at about 10 degrees first. See what you run and adjust from there. You want to use the smallest amount possible to achieve what you want. Think of nitrous as an enhancement of what you already have.

Bottle heaters are used to increase the pressure in your bottle you want your pressure to be between 900 and 1200 psi for optimum performance. Below that and your boost performance will suffer. So IMO a bottle heater is mandatory.

Third change your plugs and get two step colder plugs. Autolite 23 is what I use. You see if you don't change your plugs they will turn to glow plugs. By that i mean that they wont be able to dissipate the heat fast enough and they will ignite the fuel at the wrong time causing detonation. WHAT YOU DON'T WANT.

You know, I was asking a simple question and HiFlow50 and GTStang immediately started to bash. What are you trying to do, make sure nobody posts and questions?

If you look at NOS systems you would know that a fogger system for a V8 can be setup for any shot up to the maximum shot you purchase. It just so happens I purchased a 300 shot. That does not mean that I am starting with 300 shot. It seems like you two are total bozo's if you think NOS makes cams. The cam manufactures make cams for a nos setup. Gee...my 12 year old girl knew that.

I do want to thank eillob for at least attempting to answer some of the questions.

The cam manufactures make cams for a nos setup.
Exactly my point! But you said you have a "NOS" cam, not a nitrous cam or a custom grind cam. Do you know its lift, duration, overlap, etc.? Naws or NOS is commonly said by illiterates who have no clue that NOS is actually a company that produces nitrous systems. Also known as the Fast and Furious crew, who believe everything they see. Nitrous needs to be taken seriously, and can have many devastating side effects if not totally understood or misused by amateurs. This was my first impression on you, sorry if you made yourself look like something you are not.

Here, please refer to this thread about nitrous. Both eillob, and GTStang for have some very good info!
http://www.automotiveforums.com/vbulletin/showthread.php?t=207438 (http://www.automotiveforums.com/vbulletin/showthread.php?t=207438)

They may be bozos, but you are an even bigger bozo for thinking any stock 5.0 block is going to live with 300 horsepower worth of nitrous. Try again, with an R302/Dart/A4/World block, a billet crank, and some stout rods.

You know, I was asking a simple question and HiFlow50 and GTStang immediately started to bash. What are you trying to do, make sure nobody posts and questions?

If you look at NOS systems you would know that a fogger system for a V8 can be setup for any shot up to the maximum shot you purchase. It just so happens I purchased a 300 shot. That does not mean that I am starting with 300 shot. It seems like you two are total bozo's if you think NOS makes cams. The cam manufactures make cams for a nos setup. Gee...my 12 year old girl knew that.

I do want to thank eillob for at least attempting to answer some of the questions.


First of I knew what you were talking about when you said NOS cam. Me and HiFlow were giving you a little bit of a tough time so relax. Second I would never run a nitrous cam in a street car the ET gains vs the N/A performance is a lousy trade-off. Nitrous cams are for strip cars that only run at the strip with nitrous.

Next you can call me a Bozo but I'm not the one buying a 300hp shot of nitrous or trying to run 10's and asking noob questions about nitrous. I could answer everyone of your questions in your first post but I'm not gonna help you because I can tell what is gonna happen. Your gonna destroy you engine and then get on Corral or something and say how the Mustang guys on AF screwed you up.

Just use a blower(super charger) it would better for your motor if you know what you are doing with it.

Only the really experienced should use nitrous, I myself am not experienced enough to use nitrous and I admit it.

A I don't think so. Nothing against blowers but they are a lot tougher on your motor than nitrous is. Why? glad you asked. Blowers put strain on the engine all the time. Nitrous puts strain on the motor only when in use.

The problem we have is that if you are going to use nitrous you need to do your homework. You have to do some reading and get educated before you run out and buy the first nitrous kit you come across. I see a lot of guys go out and buy the wrong thing blow there engine sky high because they have no clue what there doing. IMO nitrous or a supercharger should not be the first engine mod you go out and do. IMO you need to have done all the bolt on mods first because those mods are going to multiply the performace gain you will get out of nitrous or a supercharger.

Its better to take 100 shot of nitrous and put it on a car thats already running high 13's Than it is to try to take a 300 shot and try to put it on a stock car trying to get into 10's.

A 300 HP hit of nitrous puts a TON more instant strain on your rods/crank/pistons than 300 HP worth of boost gradually coming on from a blower does.

Yeah your right, but I would hope no one in there right mind would go out and put a 300hp shot on there motor without going somewhere and having a special motor built to take that kind of hit. But you know like I do somebody is going to try it. I wouldn't advise putting that kind of hp mod on anything stock nitrous or blower.

They may be bozos, but you are an even bigger bozo for thinking any stock 5.0 block is going to live with 300 horsepower worth of nitrous. Try again, with an R302/Dart/A4/World block, a billet crank, and some stout rods.


Who said the motor was a stock 5.0. It is a 351W built with 4130 forged crank, eagle rods pure drag car pushing 650 hp at the rear wheel with out the nos. My kids are gone and I have the money so I want a car where the front wheels come off the ground.

This whole forum is lame. Nobody answered my questions except "eillob". I thank you. I must assume that the rest of the reply's on this thread is simply opinions from people that want to toss in their two cents. That is ok, but this is not getting specific enough for me. I will go elsewhere for the nuts and bolts of NOS setup and operation. Have a good day and thanks for the comments.

Thank you have a nice day! :thefinger

Who said the motor was a stock 5.0. It is a 351W built with 4130 forged crank, eagle rods pure drag car pushing 650 hp at the rear wheel with out the nos. My kids are gone and I have the money so I want a car where the front wheels come off the ground.

You're right, that 4130 crank and eagle rods are going to do a lot to save your motor when it splits in half right down the cam centerline because the block is weak :rolleyes:

On my nos system i retard the time 2 degrees for every 100 hp of NOS ..... You should look into getting a retard box from MSD and it will retard the timing as soon as you hit the Nos system....
i would start with 100 shot and work you way up from there .you will need to go to a colder spark plug....... make a pass on a 100 shot as soon as you cross the finsh line click the motor off and pull a few spark plugs and get the reading on them too make sure you are not lean......... You might want to run a 2nd fuel pump too the nos system so you don,t lean your fuel system out......if ya need any more info pm i will be glad to give you any info ...later UniX

Ahhhh unix? This thread is a little old. Like two years old. Theres nothing wrong with doing a search to do research on a subject but bringing a thread back this old is kind of a no no.:nono: