1BAD98TA

iTrader: (11)

Just wondering, I have been reading about the accessories you need to make a system "right" and even asked what to buy next in another thread I started..

Even with a window switch/micro edge, and a fpss how are you protected if the fuel selenoid fails to engage?? That would cause only nitrous to be sprayed and no fuel to be added.. just wondering if there is a way to protect against that?? I got a ZEX kit so I know it has that purple "brain" but as far as I know it doesnt even built in protection from this problem..

Nitro Dave's Nitrous Outlet

iTrader: (25)

I hate to be the one to spoil you comfort with the Zex kit, but it has no magical Brain inside to adjust your airfuel or protect you from rich or lean conditions. Its nothing more than a box with two solenoids and a TPS switch hidden inside. If the fuel solenoid Fails it will go lean. Same as if an injector were to get clogged.

I can not speak for Zex but I can not remember when the last time was we had to warrenty out a fuel solenoid. Its all in the quality of the products you use.

Dave

Phantom

iTrader: (16)

Like Dave said, very seldom will a fuel solenoid fail. It just doesn't really have anything to do besides open and close. It doesn't hold a lot of pressure or anything like a nitrous solenoid. Only way I could see one failing is if was wired wrong and the coil got to hot and malfunctioned...Or if you let e85 sit in there too long

Cape T/A

I was thinking that some window switches had an input in them that you could hook up to your wideband that will shut the system off in a too rich/lean situation.

custm2500

iTrader: (11)

With a zex kit who knows. The aren't very liked around here for good reason.

Like everyone said I can't remember ever hearing about one failing.


To diretly answer your question. Boom!!

1BAD98TA

iTrader: (11)

I appreciate the responses guys.. I know alot of you guys dont like the Zex stuff but I looked around online and alot of other guys do like it.. The biggest reason I could find that people DONT like them is because you cant "grow" with a Zex kit.. I have no desire to go any bigger than a 150 shot on my car so its not an issue for me.. After I get a few bottles through it I will debate where I go from there.. I do appreciate the input though..

89pigeontoe

iTrader: (1)

Keep timing conservative. You'll feel it fall on its face if your running a big enough shot.

karpetcm

iTrader: (2)

From my experience the fuel solenoids didnt fail at all, have i heard them fail yes but rare. Usually the nitrous solendoids fails and in my case when i had a wet system on my 93z it did. I was lucky dumping fuel intake the intake manifold nothing went wrong.

2004yjgto

iTrader: (5)

I had a plate with the noids built onto it that the fuel noid malfunctioned but it was an easy fix they just replaced the plunger due to swelling. They also have stopped using the plunger material.. it went really lean but with only a 150 shot and a wideband it was easy enough to catch and get out of it

soundengineer

iTrader: (16)

you can also run a system that has a Lean/Rich Cutoff...
when you go above or below a specified AFR, system shuts down...
Just set the cutoff time to a longer value than the initial Lean or rich hit that you experience depending on your system.

also, you are far more likely to destroy your engine from a Rich situation.
Nitrous is not flamable on its own...its an oxidizer, so no fuel means no combustion...

I'd be more worried about the Nitrous solenoid not opening from too much bottle pressure or a mechanical failure, and then you go rich.....and than your motor goes to ****

Beaflag VonRathburg

iTrader: (176)

^ I was going to say the same thing on the lean cutoff switch. Last time I looked dynotune has one pretty cheaply.

Cold Zero

iTrader: (1)

After you read all of that .. Choose a high quality solenoids

For me I will replace my solenoids every year as maintenance to my N2O system

NHRATA01

iTrader: (10)

One suggestion for a minor improvement in safety when installing - tin the leads from each solenoid together with solder and then run to a common power source or common ground. This way it's not possible for only one noid to lose the power or ground without the other also losing the same. Keeps something random and stupid like the fuel noid ground falling out of a crimped connection from toasting your motor.

SSPerformance

iTrader: (76)

Bang!!!!!

shortdog

iTrader: (1)

Tell me about it.
https://ls1tech.com/forums/nitrous-o...-up-stuff.html

Big Geek

iTrader: (2)

WhitePhoenix99

iTrader: (12)

From what I have seen the Zex solenoids inside that box are TINY. I would be surprised if they could even handle a 150 shot.