tyler ovel

iTrader: (1)

Ok so my nitrous hits right off the line with my WOT trigger on the throttle body, so how does this work with a 2-step? Looking for some input on how people go about this.

Do you guys just say **** it and let it spray and pop the **** out the exhaust while your sitting on the line or do I need a progressive controller? Thanks

BarneyMobile

iTrader: (4)

I wired in a 5 prong 12v relay in between my nitrous controller and nitrous relay to interrupt the power going from the controller to the nitrous relay. The interrupt relay is normally closed completing the circuit allowing the nitrous to fire. Now using the same 12v signal to activate the 2-step, you can use it to activate the interrupt relay which will open the circuit between the nitrous relay and the controller allowing the 2-step to function without spraying nitrous.

FiFdYnUtz

iTrader: (12)

When I was foot braking my 4l60e with a 2 step I simply held the pedal down enougb for the 2 step to activate without going wot then stabbed It on green...not super efficent but it worked for what I wanted

witry

iTrader: (8)

what about a window switch, just set it to an rpm just above the 2 step setting

StrokerTA

I'm guessing your a footbrake application? So I would wire in a relay on the brake switch that doesn't give the nitrous power until the brake switch is released.
On trans brake cars we just use a relay to interrupt the power to the nitrous until the TB button is released.

RocitSS

iTrader: (1)

Figure out a different activation. Found this out the hard way. When you do it this way the two step is active as soon as any light pressure is on the brake, but that also means you have to fully come off the brake BEFORE it will disengage. It's not a lot of time but I noticed i rolled quite a bit before it would release and hit hard. Just my .02. I didn't change it because I am swapping to powerglide with a transbrake anyways.

StrokerTA

Set the brake switch differently, I have a lot of customers launching off foot brakes cutting good lights with this same technique... It's not my favorite way, but it works.

badhombre

iTrader: (4)

I have my window switch setup so it is about 200 rpm higher than the 2-step. that way it isn't spraying on the 2 step, but as soon as I come off of it it will

tyler ovel

iTrader: (1)

Thanks for the input guys. I am a 6 speed car so I'm not on the brake at all. I do have a window switch on the car and never thought of that but my only thing is that I launch the car around 6000-6500 depending on track prep and don't know how well that method would work withe launching so high.

Anymore input would be greatly appreciated

soundengineer

iTrader: (16)

you need two relays...

simply put...
Relay 1
30 - 12v from battery or ign on source
85 - 12v activation from 2 step button
86 - Ground
87 - 12 Output to 2 step controller
87a - 12v output to relay 2 pin 30

Relay 2
30 - 12v from pin 87a of relay 1
85 - 12v activation from Nitrous Activation button
86 - Ground
87 - 12 Output to Nitrous Controller activation or to WOT window switch
87a - Not Used


effectively, pin 87 is used when you activate the relay coil by putting 12v to pin 85
pin 87a is the wire that comes out of the coil when you dont have power to pin 85

so when you hold your 2 step button, nitrous is off..but you leave it armed and ready to go...
when you let off the 2 step button, it sends voltage to the Nitrous kit and away you go...
safe and reliable

GTA91

iTrader: (14)

Subscribing.

tyler ovel

iTrader: (1)

Thanks a lot for the write up man. Very informative

4WOFURY

iTrader: (2)

Mine has a second relay to interrupt the main relay any time the clutch is pressed.

Have a wire from that relay and a wire from the two step going to the clutch switch. Any time clutch is pressed, nitrous is turned off and two step is activated. Been working great for a while.

It'd be the same wiring for a trans brake interrupt

03EBZ06

Along lines of what I was thinking. Maybe an AUX to activate 2STEP instead of using clutch to power on 2 STEP using clutch signal as other pole of relay.

What do you think of this? I have not tried it but like Tyler, looking for
2 step solns for 6spd. This prevents the 2 step from activating on movement. Not sure if the VSS (pin50) will work as I think.

soundengineer

iTrader: (16)

VSS doesnt work like that...
you cant use a vss signal...it is not a 12v signal...its a magnetic pulse that goes on and off rapidly

BarneyMobile

iTrader: (4)

Very similar to how mine is setup. Using a 2nd relay to interrupt power to the nitrous relay works flawlessly!

GTA91

iTrader: (14)

Just curious guys. Are you using a micro switch on your clutch or a factory switch or what? Also, is the switch at the bottom by the floor or at the top where the clutch pedal would be fully released.

When I used to run a 2step I think I had it wired into a switch up at the top (like a cruise deactivation switch), but I'm not sure if it should be there or at the bottom.

camarokid94

iTrader: (2)

6sp with nitrous and 2 step here...

my 2 steps wired to bottom starter enable switch so with clutch is at bottom 2step is armed and the nitrous goes through MSD rpm window switch throttle body WOT switch fuel pressure safety switch and then the cruise control switch at the top of the clutch pedal so once clutch is out it starts spraying!!!!!!!!!! works great clutch is 2step on drop clutch 2step shuts off nitrous kicks in!! and hits like a 3500lb hammer off the line

4WOFURY

iTrader: (2)

Mine is wired through the clutch safety switch, and CSS is bypassed. Will get my wiring guru (Micah41091) in here!

Micah41091

iTrader: (3)

You will use 2 relays to do so. Any other way is wrong. You will have your main relay which goes to the 12v side of the solenoids . And your second relay will be wired to interrupt the ground that activates the main nitrous solenoid by breaking the ground from the micro switch whenever the clutche is pressed, 2 step, or trans brake is activated. I will draw up a diagram and post it.