I am seriously thinking about this mod and was just wondering if there are any negative side effects...?

like engine over heat? or too much abuse for the parts, fast wear of some parts? etc.

If it's just tire wear.. i think i can deal with it!!

thanks

 

To be honest, if its installed right and tuned right, and you keep your shot reasonable, the risks are pretty low, of course it will accelerate wear on your internals, but pretty much all high performance upgrades do. Overheating wont happen unless you spray for too long, a tech at NOS told me that 15 seconds or less is a good rule of thumb for safe spraying. Most of the engine wear comes from the initial hit of the nitrous, your motor is churning out 60 or so (depending on shot) horsepower in a blink on an eye. They do make what are called "progressive nitrous switchs) which release more and more nitrous as your RPM's increase to improve traction and reduce engine wear, but they are pretty expensive and wear out your soledoids because they operate by opening and close your solenoids very quickly to control nitrous release.


Hope that helps.

 

What Vash said.

I've been running a dual stage +250hp kit on an LS1 SS camaro for over 35,000 miles. Of course it's a built block, but I've had good results on stock blocks for many miles to.

The biggest thing is getting an RPM window switch to ensure that the juice is off BEFORE you hit the rev limiter. The 350z ecu cuts fuel and you will burn a piston real fast if the juice is still on and the ECU leans out your mix. You might want to give Technosquare a yell and see if they have a custom flash for nitrous specific applications.

 

Small wet shots ~55-75hp are harmless. The problems arise as you up the boost to much higher levels. Nitrous oxide gas is a poor conductor of electricity and the more you stuff in the combustion chamber, the harder it becomes to pass a hot enough spark across the spark plug gap. At high levels, upping your ignition output is a necessity. If you don't, the engine will experience misfiring and hot burning air/N2O/gas mixture going out the exhaust without providing power. While it doesn't seem like much, it can potentially be a very bad thing for internal components, the rod/piston assemblies reach the top of the stroke and are not cushioned by the pressure of the burning air/fuel/(N2O) mixture.

Nitrous oxide causes a much hotter burn in the combustion chamber too, when you run large amounts of it, you need to go with a colder heat range of plug. In extreme cases, you can cause a plug to glow red hot and set off the mixture as it's coming in during the intake stroke (I was a victim of this once lol, not fun)

There is a greater risk of detonation with nitrous oxide, and worse yet, detonation in an engine under nitrous oxide boost sounds different than the "pinging"or "knocking" you hear in a normal engine. It actually sounds like a distant roll of thunder and you might think it's a really mean sound when it's really your engine hammering itself to death. Detonation in a nitrous boosted engine will obviously cause more damage if not taken care of when setting up your kit. Avoid going hog wild and stuffing more and more in without first making sure you have the equipment to take care of detonation: like an ignition retard when under boost, water injection and a colder range of plugs. Detonation is what kills engines with nitrous and is the reason nitrous got a bad reputation. If you take measures to minimize or eliminate detonation, it will take *alot* of nitrous boost to hurt anything.

Do not activate the nitrous oxide system at engine speeds lower than 2500 RPM!

Do not activate the nitrous oxide system at anything other than wide open throttle!

A fuel pressure gauge is helpful and a device to cut off the nitrous if the fuel pressure drops below a predetermined level is a good idea too.

Finally, keep in mind that nitrous oxide only releases oxygen to help the gas burn, you need to have a method of adding more fuel to go with the nitrous oxide. But any kit worth it's salt should already have that part taken care of.

 

AHA! I knew I would find you poking around in here Dennis! You got the need for speed!

 

oh no.... busted....
it's a secret...... til the next track day....

 

Nah... no risk at all... slap a 300 shot on that puppy and burn some rubber! WOOHOO!!!

 

No Worries. Your secret is safe within this thread...Although why wait for the next track day. Get it hooked up and test it out on the way to the TI meet in oct. HA! HA!