question about the zex nitrous system - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Reggiocamaro · 12-11-2014, 07:25 PM

I have the zex system for the v6 camaro. My nmu, doesn't work properly. It sprays as soon as I activate the switch which its not suppose to do. Suppose to activate when I press the thottle. . Well I decide to drive and activate the switch at above 3000rpms which seems to work. Is this wrong or is there any advice someone can give me. Also I been using the 75 shot, I want to use the 100 bit people telling me I need to retard the belt, but this one guy said because I'm in El paso aND attitude is so high, I don't need to retard the belt, he been pushing 125 shot. My car isn't tuned, I have no idea how much a turn would cost. If someone could hit me up with some knowledge about this kit and nitrous I'll appreciate it

IneedAZ · 12-13-2014, 05:51 PM

One issue u will run into by not retarding the timing is you will encounter knock retard so u still won't get the most from ur kit. U might want to install a window switch so it comes on at 3k and off at ur desired setting. I think mine is at 6800

Reggiocamaro · 12-13-2014, 07:06 PM

Quote:

Originally Posted by IneedAZ

One issue u will run into by not retarding the timing is you will encounter knock retard so u still won't get the most from ur kit. U might want to install a window switch so it comes on at 3k and off at ur desired setting. I think mine is at 6800

That's a good idea, was it easy to install

IneedAZ · 12-14-2014, 07:48 AM

Yes, just a few wires. I have it mounted in the glove box.

Superfly1 · 12-15-2014, 05:08 PM

Sounds like to me that maybe the WOT switch isn't calibrated and/or hooked up correctly. A window switch is a good idea as well (I run mine from 2500-7000), but you also want to make sure that it is only spraying at WOT. To get the most out of the nitrous I would suggest a tune. I run a Trifecta tune on mine at the moment and I am really happy with it, but I think it is a safe tune and there might be a little more to get out of it. So I might switch over to HP in the future.

Reggiocamaro · 12-23-2014, 08:05 PM

Which year is ur camaro cuz the cables are different from 11 and 12. Which cable did i hook up the nmu on the throttle. Does the nmu light up.at all? Cuz mine doesn't

Superfly1 · 12-24-2014, 05:59 PM

Mine is a '10... I was thinking it was a white wire, but I would have to look for sure.

Reggiocamaro · 12-25-2014, 09:24 AM

Yeah i know the wire harness changes after 2011, so I have one fewer and different color wires, I'm gonna just have to search for the voltage

Superfly1 · 12-30-2014, 11:55 AM

I looked at mine this weekend and it is a purple wire on the throttle body harness.

Reggiocamaro · 12-30-2014, 12:06 PM

Yeah mine don't have purple

12-11-2014, 07:25 PM	#1
Reggiocamaro yellow_dragon Drives: yellow camaro, black stripes Join Date: Mar 2014 Location: el paso, tx Posts: 97	question about the zex nitrous system I have the zex system for the v6 camaro. My nmu, doesn't work properly. It sprays as soon as I activate the switch which its not suppose to do. Suppose to activate when I press the thottle. . Well I decide to drive and activate the switch at above 3000rpms which seems to work. Is this wrong or is there any advice someone can give me. Also I been using the 75 shot, I want to use the 100 bit people telling me I need to retard the belt, but this one guy said because I'm in El paso aND attitude is so high, I don't need to retard the belt, he been pushing 125 shot. My car isn't tuned, I have no idea how much a turn would cost. If someone could hit me up with some knowledge about this kit and nitrous I'll appreciate it

12-13-2014, 05:51 PM	#2
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	One issue u will run into by not retarding the timing is you will encounter knock retard so u still won't get the most from ur kit. U might want to install a window switch so it comes on at 3k and off at ur desired setting. I think mine is at 6800 __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

12-14-2014, 07:48 AM	#4
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	Yes, just a few wires. I have it mounted in the glove box. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

12-15-2014, 05:08 PM	#5
Superfly1 Drives: 2010 Camaro 2LT #2197 Join Date: Nov 2009 Location: Wichita, KS Posts: 916 View My Garage	Sounds like to me that maybe the WOT switch isn't calibrated and/or hooked up correctly. A window switch is a good idea as well (I run mine from 2500-7000), but you also want to make sure that it is only spraying at WOT. To get the most out of the nitrous I would suggest a tune. I run a Trifecta tune on mine at the moment and I am really happy with it, but I think it is a safe tune and there might be a little more to get out of it. So I might switch over to HP in the future. __________________ CAI intake \| OBX LT Headers \| Flowmaster AT Exhaust \| Trifecta Tune \| SS Rear Diff, Axles & Driveshaft Zex 100 Shot Nitrous \| Konig Airstrike Wheels \| Custom Engine Cover, Fuse Box & Underhood Bowtie Eibach Springs & SS Sway Bars \| BMR Strut Brace \| Drake Shifter \| Vitesse Paddles \| 13.26 @ 105.88 mph

12-24-2014, 05:59 PM	#7
Superfly1 Drives: 2010 Camaro 2LT #2197 Join Date: Nov 2009 Location: Wichita, KS Posts: 916 View My Garage	Mine is a '10... I was thinking it was a white wire, but I would have to look for sure. __________________ CAI intake \| OBX LT Headers \| Flowmaster AT Exhaust \| Trifecta Tune \| SS Rear Diff, Axles & Driveshaft Zex 100 Shot Nitrous \| Konig Airstrike Wheels \| Custom Engine Cover, Fuse Box & Underhood Bowtie Eibach Springs & SS Sway Bars \| BMR Strut Brace \| Drake Shifter \| Vitesse Paddles \| 13.26 @ 105.88 mph

12-23-2014, 08:05 PM	#6
Reggiocamaro yellow_dragon Drives: yellow camaro, black stripes Join Date: Mar 2014 Location: el paso, tx Posts: 97	Which year is ur camaro cuz the cables are different from 11 and 12. Which cable did i hook up the nmu on the throttle. Does the nmu light up.at all? Cuz mine doesn't

12-25-2014, 09:24 AM	#8
Reggiocamaro yellow_dragon Drives: yellow camaro, black stripes Join Date: Mar 2014 Location: el paso, tx Posts: 97	Yeah i know the wire harness changes after 2011, so I have one fewer and different color wires, I'm gonna just have to search for the voltage

12-30-2014, 11:55 AM	#9
Superfly1 Drives: 2010 Camaro 2LT #2197 Join Date: Nov 2009 Location: Wichita, KS Posts: 916 View My Garage	I looked at mine this weekend and it is a purple wire on the throttle body harness. __________________ CAI intake \| OBX LT Headers \| Flowmaster AT Exhaust \| Trifecta Tune \| SS Rear Diff, Axles & Driveshaft Zex 100 Shot Nitrous \| Konig Airstrike Wheels \| Custom Engine Cover, Fuse Box & Underhood Bowtie Eibach Springs & SS Sway Bars \| BMR Strut Brace \| Drake Shifter \| Vitesse Paddles \| 13.26 @ 105.88 mph

12-30-2014, 12:06 PM	#10
Reggiocamaro yellow_dragon Drives: yellow camaro, black stripes Join Date: Mar 2014 Location: el paso, tx Posts: 97	Yeah mine don't have purple