Forced Induction why not nitrous ?

why not nitrous ?

So um, with gas prices so high these days, why don't we see an increase of people going for the nitrous route? Nitrous allows you to have the exact same gas mileage when you are not spraying which is like 98% of the time and extra power when you do spray. Thats not including how it's cheaper too. If it was me, I would go nitrous over turbo or s/c. or better yet who needs a faster car when you don't drive fast most of the time? Just spray nitrous in your 1.8L when you need to go fast.

nitrous is nitoriously bad for your engine... and with a properly tuned turbo setup there is not much of a loss in gas mileage over stock, and is much less painful on your engine than you might think...

Gasoline burning engines are designed to run most efficiently with a stoichiometric ratio of 14.7:1. The standard "dry" nitrous oxidizer kits are diretly injected into the air intake without telling the ECU to compensate by adding extra fuel thereby causing a lean operating condition risking engine knock and pre-detonation which would lead to dramatic engine problems.
Nitrous Oxide is NOT a fuel, it is a oxidizer ie. nitrogen & oxygen stored in a liquid (or aquious) form. When using nitrous oxide, you must run more stable high octane gas or run a more expensive wet kit where more fuel is injected with the n2o to compensate.

Besides it's illegal to use or be equipped in autoX, HPDE, and especially on public roads.

I thought nitrous has the same effect on the engine in that they both force more air in the pistons to burn and with a wet kit it should be comparable to a turbocharged system in terms of reliablity i think.

Plus, a turbo is there all the time. I don't drive my car like a grandma most of the time. Although it isn't hard to acheive, I usually drive my rolla at 6/10ths or above. Personally, I want my car to be consistently fast, not just fast for 10 second bursts.

true, but my point is I want to save my stock gas mileage and reliablity. And it seems Nitrous can give you speed and at the same time leave your motor and transmission safe if you don't use it.

This is not correct. Dry systems boost the fuel pressure to compensate for the added oxygen, this is the #1 best system to have on an EFI car. The wet systems should only be used with carbed engines, and if you're going to the power level where you exceed the capabilities of a dry system then you need a direct port system.

-Doc

after my supercharger I only lost a few mpg... well worth the trade.

Hey polo, is your is intercooled right? [slightly off topic but since we are comparing FI systems] Are you able to use pulleys with the trd supercharger, or would you need better internals? I'm really thinking of going s/c instead of a turbo. I love turbo systems, but I'd rather have it tuned and tested by the pros then me screwing my car over. lol

also,
what's with the email address "images" I noticed Supershyguy has one too?

Yes they give more Oxygen but not air. Nitrous enriches the air with more oxygen while turbo put more air for more oxygen. i have a wet system in my car. the only effect of using nitrous for long periods or prolong periods is that your stressing the valve because of the nitrous being so cold and the extreme temperature change from cold to hot which can cause stress cracks and all. I use it plenty of times. ive already gone through 10 full 10 lb bottles and my car runs fine but its all on how you take care of the car and how you use the nitrous.

so in the typical 1zz would it be better to go with a wet or dry, cuz almost every manufacturer suggests the use of a wet kit over dry, and what effect does the nitrous have the the spark?

I think if you go with 50 shot or below you should stay with dry. wet for over 50. But on stock internals, 50 is max you should spray. I hear way too many stories about the intake manifold blowing off along with injectors related to wet kits. This happens because the fuel from the wet kit can puddle in the manifold and then explodes. also fuel weights more than nitrous so the nitrous gets to the chamber faster than the fuel in a wet kit. Dry is simpler and as long as your stock fuel system can regulate it should be fine. Only time I hear about a dry kit goes wrong is when the user abuses it or the installation is bad.What I don't understand is how the stock fuel system is able to regulate the fuel for the dry system though.

Email me:

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So the guys at Nitrous Express are incorrect?

you know what guys? I may have a million dollar idea or the stupidest idea in the whole wide world...

How about in a wet kit include 2 tanks. 1 tank for the nitrous and another tank for 100+ octane fuel. That way you will not have to fill up your tank with 93 octane gasoline all the time if you don't plan to spray. That's a $.20 a gallon savings and it will add up over time. So in theory with this wet kit on regular 87 octane gas, if you spray the nitrous, the fuel solenoid will also spray a specific amount of high octane fuel to offset detonation. I think a product likes this will sell if it works.

Yeah but don't robot.txt files take care of that problem?

I looked in the installation diagram of a NOS Dry kit and it have not one thing that hook up to the fuel system.. What you are talking about sounds simular to a raising rate FMU but in the diagram there is nothing remotely close to that.. so how am I wrong?

Also NOS do offer a wet kit for EFI Sport Compacts and both ChristianVA and hookedup96 mentioned they used a wet kit so they are not only for carborators then?

I could be mistaken, but I believe most dry kits rely on the ECU to compensate with extra fuel.

My NX kit had a t-fitting that tapped into the fuel line - a braided steel line ran to the fuel solenoid, which in turn ran to the Shark nozzle in the intake. At the risk of arguing with the Doc, I must say that I would prefer a quality wet system (ie Nitrous Express) over dry.

theres a vacumm T which leads to a nitrous solenoid and a TPS switch.. thats about it.

yea dry kits are just that dry. No extra fuel is used over stock injection.

no i'm talking about the dry kit.