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Auto tc with nos?

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Old Nov 16, 2007 | 03:16 PM
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Default Auto tc with nos?

Hey, just curious, any automatic trans tc's out there using NOS? and if so how much? wet or dry? and for how long? i just want to see if its safe to run nos on an automatic..thanks
and i know i'll get hated on..for havin an auto
Old Nov 16, 2007 | 03:22 PM
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wet shot of course. I dunno...i'd think you'd have issues from 1st-2nd. Unless its the ZEX kit which activates at wide open throttle. I'd recommend ZEX period....just is the safest kit on the market for our cars. And realize you won't be able to do more than a 75 shot...even that is pushing it. You can get an upgraded torque converter for the price of a clutch/flywheel put together (600 bucks ish) and handle over 300hp on the auto if you really wanted to. (go turbo, etc).... thats the situation Im in. I could go NOS right now...but why stress my engine when there are better options.


that or do a tranny swap.

good luck
Old Nov 16, 2007 | 05:40 PM
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thanks brotha
so ur sayin..i shouldn't stress the engine with nos? even a 50 shot?
i am going n/a for now..cuz its an auto..i have exhaust..short ram..and soon headers and s-pipe..but thats about it..if i put nos with this combination its a bad thing? thanks again
Old Nov 16, 2007 | 06:59 PM
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My friend has a ZEX 50 shot on his auto tC and he's had no problems. I wouldn't get too trigger happy with it though if you do decide to go that route.
Old Nov 16, 2007 | 10:02 PM
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hey i have a zex wet kit on my auto tc, right now i have it on 35 shot and its really cool, im very careful on using it tho, im not always flipping the switch like 10 times a day and stuff, i use it when i need to (lol since im auto we always need it hahaa) lol but yea i use it like max 4 times a week, and i only leave the nitrous running for like 7 seconds. i step on the gas and as soon as it passes first gear thats when i flip the switch. im going to upgrade to a 50 shot soon. oh and i reccomend u get a purge kit, makes it more safe. and you should tune ur car. just make it a habit to check your sparkplugs to see if your running lean or rich. lemme know if you have any other questions man
Old Nov 17, 2007 | 02:33 AM
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oh nice..so its a switch instead of a button? so you put up the switch and it runs for a few seconds.shootin nitrous...okay okay..oh and sorry guys..but i honestly did forget..what was the difference between the wet and dry shot? and i heard you cant run wet shot on the track
Old Nov 17, 2007 | 03:53 AM
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Ny-trex makes great kits. They had a wet kit on an automatic with exhaust and he ran a 14.2 with a 75 shot. Rule of thumb on nitrous, you can jet (the size of the shot) half the stock power output.... meaning.... an auto tc makes 140ish to the wheels.... you can jet a 70 shot safely. The car can handle more than that...but doing half the hp is the max shot rule of thumb for your daily driver. Tons of guys here in Orlando use nitrous...mostly because a local company called Nytrex makes kits. The kits are in my opinion better than the other brands out there. They actually include all the little stuff that they other companies make you add on or have to go get from the auto parts store. The wide open throttle bracket is designed to give you many different mounting location options. Check them out.... ny-trex.com.

Regardless of the brand.... the ECU's work pretty well with spray. It's nice to have an SRT-4 running his mouth before a race and then shutting up as you ride beside him in the race.
Old Nov 17, 2007 | 04:00 AM
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thanks brotha for the recommendation..sounds awesome =D
does any1 know about the regulations of runnin a wet shot at a track?
Old Nov 17, 2007 | 04:07 AM
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its fine to do....all a wet shot is is a mixture of fuel and nitrous. a dry shot is just the nitrous and uses the MAF sensor and ECU to control the fuel part of it.
Old Nov 17, 2007 | 04:08 AM
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o0o0o haha..i see thanks man..appreciate it...oh and lets say if i have more things done to the car like intake and headers and exhaust..does that mean i can have a higher shot of nitrous?
Old Nov 17, 2007 | 04:25 AM
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no. If you want a bigger shot, you should start upgrading the internals and get a good engine management system in place. 75 is probably the highest you should go and still be safe. You will have difficulties with traction, but since you are an automatic..... the car should correct the tire spin to some degree. Best thing to do is start at a 35shot if you have never driven with it before.... then go to a 50..... then eventually up to 75. I know guys that use a 50 for their daily routine and go to a 75 at the track.

Push button kits suck in my opinion. Find a kit like the one I mentioned before that has an arming switch and WOT switch. The arming switch is just a toggle switch that arms the system. Wire it to a power source that is only on when the key is in the ignition. The WOT (wide open throttle) switch is placed by the gas pedal and is set up to only activate when your foot is all the way to the floor. This prevents you from spraying when you shouldn't be. This setup allows you to have both hands free to do things such as holding on!
Old Nov 17, 2007 | 06:53 AM
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you have enlightenmed me
oh and easy install? or medium difficulty install?
thanks againn
Old Nov 17, 2007 | 02:03 PM
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some experienced supervision would be beneficial...just depends on your skill level.
Old Nov 17, 2007 | 03:20 PM
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i have intake exhaust headers and pulleys on my car so u should be fine running nitrous on your car. the only hard part about the install is drilling the whole into the intake and keeping the spray in place, and connecting the wire onto i think it was the rpm wire, ikts a white wire behind the engine.
Old Nov 17, 2007 | 04:06 PM
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oh okay..gotcha..thanks again y'all
Old Nov 17, 2007 | 08:40 PM
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Originally Posted by fishingexpert87
i have intake exhaust headers and pulleys on my car so u should be fine running nitrous on your car. the only hard part about the install is drilling the whole into the intake and keeping the spray in place, and connecting the wire onto i think it was the rpm wire, ikts a white wire behind the engine.
Tip for drilling that hole.... put a piece of electrical tape where you plan on drilling the hole...then drill the hole. The electrical tape prevents the drill bit from sliding across the intake. Of course, make sure you uninstall the intake when you drill.... you don't want pieces of metal being sucked into your engine.

Nytrex makes the wiring easier....check their site out. It's practically Scion user friendly. Look for the 4 cylinder EFI kits.
Old Nov 18, 2007 | 07:10 PM
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all great info. however zex comes with a controller....that releases the nos at the perfect time...everytime (wide open throttle) so you don't have to touch a button if you don't want to....plus it has a built in computer that releases it when your car isn't running to rich or to lean....like i said. Perfect everytime. Do the research...all of this info from everyone is good.
Old Nov 18, 2007 | 10:41 PM
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but please if your gonna go with nitrous, do as much research as you can, dont just buy it because you want power at every second because you can mess up and stress your engine and give nitrous a bad reputation. lemme know dude if you need help with it
Old Nov 19, 2007 | 04:23 AM
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So with the Nytrex dry kit....

You have to hit a switch to arm it,

Then purge if you have a purge kit to clear the line.

Im assuming purge wont work if its not armed idk?

But anyway i have some questions.

Say your at the track and your about to go.

Your staging, you take off in first flooring it.
You shift into second and you decide you want to hit the nitrous.

You hit a switch to arm it, then when pressing WOT it will automattically kick in?

Also, can you bounce off rev limiter spraying?

Is it fine to use it spraying from 2nd, then spraying in 3rd and 4th you just have to keep it at WOT again for it to continue spraying?
Old Nov 19, 2007 | 10:22 AM
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"You have to hit a switch to arm it,"
---Yes, it's just a toggle swtich.

"Im assuming purge wont work if its not armed idk?"
---You can wire the purge to be connected to a power source that is always on, i.e. straight to your battery. The reason for hooking the nitrous solenoid to something that turns on only when the key is in the ignition is so you don't puddle a bunch of nitrous in your car before you turn it on.

"Your staging, you take off in first flooring it.
You shift into second and you decide you want to hit the nitrous.
You hit a switch to arm it, then when pressing WOT it will automatically kick in?"
---Well, my car has enough power that I never make it to WOT in first gear....If you do make it to WOT, it's either because you bogged down, have some mega slicks, or are just spinning your tires. So you can arm the switch before you even stage.... just be careful not to use the nitrous during the burnout because you shouldn't have the pedal pegged to the floor anyway. The way the WOT is set up is it only activates when the pedal is touching the floor (you can make adjustments if needed.) Therefore, by the time you have enough traction to spray, you should be able to floor the car.

"Also, can you bounce off rev limiter spraying?"
---Yes and No. If you are riding your rev limiter you shouldn't be driving a stick. Depending on what kit you go with, you will see different things happen. On the dry kit, you will feel the car cut way back on power. That is because the MAF is "freezing up" and the cars ECU reduces the amount of fuel entering your car. On the Wet kit, a fuel pressure sensor handles that.

"Is it fine to use it spraying from 2nd, then spraying in 3rd and 4th you just have to keep it at WOT again for it to continue spraying?"
--- Ideally you want to be able to spray 1st gear, except it is hard to maintain traction on a stock tire setup. Most people can't spray until 2nd. Once your pedal hits the floor, you are spraying. So obviously when you back your foot off the gas in order to shift, you are not spraying. Once you put the pedal back the the floor in 3rd, you are spraying again.



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