Thinking About Nitrous

Hammtastic

After searching, I'm having trouble sifting through all the old threads to get any pertinent information on running a nitrous setup.

To start, I have a 2014 7AT that's more stock than your grandma's Buick Le Sabre and am considering a 100 shot or less. What all things do I have to consider for the health of the motor? Should I be able to do this without adding anything else?

I guess I'm a little bewildered as to why people seem to be so nervous on running nitrous on this car. I used to run dry 100 shot daily on my 99 Toyota Tacoma and never had a single problem. Even ran it on an old Ford Ranger with no issues. This was back in the day when I wanted a truck to outrun the guys with mullets driving the stock fox body 5.0s.

All help is appreciated. TIA

gbrettin

Running N2O introduces risk as any other performance modification, you are going outside of OEM specifications. Be prepared to fix your car if something breaks. With that said, I'm running 100HP shot on my 2009 7AT. I've been through about 6 tanks and everything is running like a top.
My Build:
Audio Dynamix 370z Nitrous Install

This thread has a lot of good info too:
Nitrous build is finished

madwi

There is always going to be some negative light when talking about nitrous. Everybody knows a guy that is friends with another friend that once went to the strip and saw a nitrous backfire and they talked with a friends father who is a "mechanic" and they agreed any car with nitrous=boom

Hammtastic

Nitrous is used around my neck of the woods like it's nectar from the gods. That's why I was a little confused as to why people were being shunned for trying it on this car, lol.

Maybe you can shed some light on this question as well. Why are people on here like, "Oh you have CBE and CAI? Go tune it bro." Can these car's ECUs not adapt to simple mods such as these without the help of a tune? Maybe I just need to get used to the atmosphere here, haha.

Thanks for the links by the way!

Mitco39

While that may be right on a car that runs closed loop 100% of the time (like the new Bimmers) it is not true on a car such as ours. The car makes educated "guesses" so to speak on how much fuel to run based only on the air it sees going into the engine. Change something about how the air flows and you essentially mess up the factory algorithm that determines how much fuel to inject. Also its well known that the factory tune has room for improvement itself.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Hammtastic

Most factory tunes on stock ECUs can be improved on most cars. I have a 91 turbo MR2 making 334whp on the stock ECU with a Precision turbo. The stock ECU adjusted fine and AFRs barely reach 11. I just figured in this day and age, with the technology, stock ECUs should be able to handle simple mods without guessing. I mean it has all the data it needs to make the "guess" a very educated one.

Mitco39

Ok I dont get what your saying then? In one post your questioning the people on here telling you to get a tune. Then you say that that most factory tunes can be improved? Wouldnt that normally go hand in hand? Why question it if you agree with it?

You would be surprised but I doubt the systems on this car vary all that much from the systems on that MR2. This car under load uses the MAF to determine how much air its sucking in and then injects what it deems to be the correct amount to give you the desired AFRs. Change anything about that system and you influence its outcome.

Higher end (and newer) cars will always run closed loop and thus they use the factory O2s along with the MAF to work together to get you very close to your desired afrs.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Hammtastic

Most manufacturers are going to be conservative with their ECU maps, to keep as much reliability as possible. I understand this. And I know that I can install a CBE and CAI and the car will run fine. But from what I have been reading (and its a small sample size, I know this), people are quick to suggest a tune with simple mods, and I guess my question is why. I'm wondering if it's due to the ability to tune the stock ECU (in the MR2 world, you can't tune the stock ECU) so easily, or if the ECU is not great at making the adjustments when such mods are added. Does that make sense?

Mitco39

People are probably quick to suggest a tune because unless your going FI then its the next best bang for your buck so to speak. Not only does it increase your power due to conservative ECU maps as you said, but it allows you to take full advantage of your current mods.

If it was 2K to tune your ECU then I think you would see less people recommending it.

__________________
2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Hammtastic

If you can get your 60ft down to a 1.6, which is definitely possible, you would most certainly be in the 11s! After reading your thread and results, it has made me really want to go with a nitrous setup. I like that fact that I only have the power when I want or need it. The one thing that concerns me is the 7AT. I really don't want the trans to blow up on me.

Thanks for the info!

LNATKFRNG

Several guys are running a 100 wet shot with no issues, I think the resistance to n20 that you see here stems from the fact that none of us are really pushing more, to be honest I don't want to be the first to push the button on a 200 shot. That being said I got a lot of good info from the 350z forums, seems those have been around longer and people have more experience spraying them. I've had my 100shot on for a while now with zero issues I say for it.

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'09 sport package