Nitrous Oxide Systems, Yaris on the Bottle

[CASTREX]

Flammers, please keep out. I know there are probably 100 good reasons why we should keep away from the N2O.

But, OK seriously. I haven't seen many threads about Nitrous systems for the Yaris. I remember Chino Charles almost buying a dry kit for his car but that was about it.

I don't want to race the lil Yaris... this is my daily driver but every now and then I like to go out at night and just hit the gas of my car for some spirited driving. I'm not looking for a fast car but I know that just a little more punch at high RPM's would make those night rides much more fun. I can't afford a second car just to take it out occasionally and a $3000+ turbo kit is over my budget. I also don't have the time or the knowledge to put together a turbo set up by my self.

All that been said what we have left?? Nitrous Oxide!

I have done a little research over in Scion Life and I haven't really found scary stories about the 1NZFE on the bottle other than a supercharged XB with a 50+ shot that blowed the engine but after some serious abuse. Other than that there are many guys running both dry and wet kits with shots ranging from 25hp to 55hp on stock internals with out a problem.

I'm not thinking anything crazy, just a wet kit with a 35hp shot activated at wide-open throttle with all the safety features like the Traction Control Window Switch.

I will like to know what you think about it... I don't know much about N2O so please let me look if I'm missing something.

[Motorhead6T5]

Flammers, please keep out. I know there are probably 100 good reasons why we should keep away from the N2O.

But, OK seriously. I haven't seen many threads about Nitrous systems for the Yaris. I remember Chino Charles almost buying a dry kit for his car but that was about it.

I don't want to race the lil Yaris... this is my daily driver but every now and then I like to go out at night and just hit the gas of my car for some spirited driving. I'm not looking for a fast car but I know that just a little more punch at high RPM's would make those night rides much more fun. I can't afford a second car just to take it out occasionally and a $3000+ turbo kit is over my budget. I also don't have the time or the knowledge to put together a turbo set up by my self.

All that been said what we have left?? Nitrous Oxide!

I have done a little research over in Scion Life and I haven't really found scary stories about the 1NZFE on the bottle other than a supercharged XB with a 50+ shot that blowed the engine but after some serious abuse. Other than that there are many guys running both dry and wet kits with shots ranging from 25hp to 55hp on stock internals with out a problem.

I'm not thinking anything crazy, just a wet kit with a 35hp shot activated at wide-open throttle with all the safety features like the Traction Control Window Switch.

I will like to know what you think about it... I don't know much about N2O so please let me look if I'm missing something.I ponder'd doing it cause I have all brand new stuff sitting here to make a dry kit,I haven't done anything yet and don't plan to at this moment. Sounds like you already did your homework,and scionlife is the best place to do it. One of the reasons I didn' pursue it is because the throttle by wire. A throttle by wire n20 kit is pretty expensive,and If this car has torque managment programed into it,it will actually shut the throttle as it nears redline or when you bang a shift real good. You don' want the throttle to be closing will spraying. So I kinda lost interest till I can control the ecu.But yeah,if done right I think a 35shot would be totaly safe,id get it on the dyno to get a a/f reading though the very first time i sprayed it if I were to do it.

[CASTREX]

Thanks for your input! Good info. So you think a Traction Control Window Switch like this one from ZEX http://www.zex.com/Products/NitrousAccessories/TractionControlSwitch.asp?Screen=PROD&Store_Code=ZX&Product_Code=82085
Wouldn't work with our drive by wire?

[Motorhead6T5]

That would control the rpm but not the throttle,need somthing like this "I think".

http://www.holley.com/15972NOS.asp

[CASTREX]

That is $150 is not that bad...

[Motorhead6T5]

That is $150 is not that bad...No not really but its $150 more than I was planning to spend at the moment lol.

They have iridium plugs stock so you might want to switch out to some coppers.

[CASTREX]

A dry kit will not work with our cars. We have a returnless fuel system. SO there is no fuel pressure regulator on the fuel rail which is requiered on a dry kit.

That's why I would go for a wet kit (If I end up doing it) as I mention in the first post.

[largeorangefont]

Do a wet kit, it will work fine with anything under a 50 shot. Get or borrow a wideband to make sure everything is good when you spray.

[Motorhead6T5]

A dry kit will not work with our cars. We have a returnless fuel system. SO there is no fuel pressure regulator on the fuel rail which is requiered on a dry kit.Not true,not all dry kits use the reg to add fuel,some just use the maf and o2 sensors,its weather or not the ecu has enough correction to compensate. Zex is the only company I've seen that uses the reg to add fuel.

[ChinoCharles]

This guy is running a dry system. This is the only Yaris I've seen running nitrous.

http://yarisworld.com/forums/showthread.php?t=4491

That install is so ghetto I puke in my mouth a bit every time I look at this car, but I guess it gets the job done. It is definitely doable, but I wouldn't run much, and I'd spend the money on the rest of the goodies. I priced the complete ZEX system out on Ebay when I was dead set on it and it ended up being just a hair under $1000 for all the bells and whistles. Not a bad price if you ask me.

[CASTREX]

Maybe not ALL the bells and whistles are needed to be safe from a small wet shot. A Window Switch compatible with our drive by wire will make the kit IMHO relatively safe to use. The NOS switch is $150 and the rest of the kit can probably be sourced from Ebay for around $500. Other extra features can be added later...

I can't believe that only one person in here has installed a nitrous in his car...!!!

[dallas]

A zex wet system would be reliable, the key is to get a pressure activated bottle heater as bottle pressure is critical to proper operation. Most of the new systems work ony at WOTto better protect the car. I would start with consevative jetting.

[project y]

im running the zex dry system hade it for about a 6 month love it
im at a 47hp shot runs fine
just change plugs a spend a little more on 92or better gas

[largeorangefont]

Maybe not ALL the bells and whistles are needed to be safe from a small wet shot. A Window Switch compatible with our drive by wire will make the kit IMHO relatively safe to use. The NOS switch is $150 and the rest of the kit can probably be sourced from Ebay for around $500. Other extra features can be added later...

I can't believe that only one person in here has installed a nitrous in his car...!!!

It is beacuse you go from getting beat by minivans to getting beat by stock civics.

[07typeS]

:cool: It is beacuse you go from getting beat by minivans to getting beat by stock civics.

lol man thats so true....

[CASTREX]

im running the zex dry system hade it for about a 6 month love it
im at a 47hp shot runs fine
just change plugs a spend a little more on 92or better gas

Where did you get the 47Hp jet? is it from ZEX?

[Motorhead6T5]

http://store.summitracing.com/egnsearch.asp?N=700+4294925239+4294839080+42949194 43+115+400114

[Jaysun]

all V8 (LS1) camaro and firebirds from 98 up do not have a return fuel line. The dry set up work very effective as long as you sprayed 8 to 12 before the maf it was effective. but the lt1 spraying before the maf doesnt work so well do to the lt1 do to the computer.

some one will have to be the tester to see if it will work on a yaris.

On my brothers integra we put a single dry nozzle in the front of his air filter like a certain zex kit and with a 25 shot dynoed fwhp it would make his auto 1.8 a little sleeper. with that small a shot we had the window switch come on at 2400 and with the wider tires it would pull 2.1 60,s witch is good for a stock exhaust teg with a cheap cold air and rims.

the reason for th dyno was to check air fuel more than anything and it was 12.8 to 1 so he ran with it. One year later he got GREEDY and went to a wet 80 and 4 months later broke a piston.

[cm07yaris]

I ran a ZEX dry kit on the d-series motor of my (very) old 92 civic without any problems whatsoever... I want to say around a 50 shot.

[squirt1982]

I don't know about the Yaris but I used to run 75hp on a 1.6 miata, (yeah, yeah, I know) anyways I had no trouble with the engine, (that is until a buick decided to run a red and put it in my lap), at the time the car had 140,000 and I installed the nitrous at about 70,000. I'd imagine the Yaris engine is built a little better. Only problem I had was that I had to replace the clutch with a centerforce, a little chatter but I could drop it at damn near 6000 with no slip.
If it were me I wouldn't worry to much about the engine, more about how long the clutch will last, and how often you're gonna have to replace the tires, FWD really has trouble hooking up especially on such a light car.
But hell for the price, get it have fun once in a while, and enjoy. These new cars really are amazing, they'll take hell.
Back in my super, super idiotic days I'd been able to drain a 10lb bottle in a night, the engine would warm a little, but I never EVER had any even moderate issues with it.