NOX on My LA car - Moparts Forums

Register Log In Moparts Forums Moparts Restoration & A12 Forum NOX on My LA car

Print Thread

NOX on My LA car #1613030 04/28/14 08:18 AM 04/28/14 08:18 AM
Joined: Sep 2013 Posts: 180 T Tropicalcats OP member
Tropicalcats OP member T Joined: Sep 2013 Posts: 180	Talking with a guy this weekend and he said my LA 70 Challenger should have had NOX on the carb. Is that right? I do have the ECS system. When I got the car the carb had been replaced so can't tell if the solenoid shad been on the original. Thanks

Re: NOX on My LA car [Re: Tropicalcats] #1613031 04/28/14 01:27 PM 04/28/14 01:27 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Talking with a guy this weekend and he said my LA 70 Challenger should have had NOX on the carb. Is that right? I do have the ECS system. When I got the car the carb had been replaced so can't tell if the solenoid shad been on the original. Thanks The NOX system monitored the speed of the vehicle through the speedo cable and retarded the timing. It did not affect the carb I don't think. The timing vacuum controller did mount to one carb stud. Here's a picture of the harness of one when I restored my car. This mounts on the firewall on the passenger side. I put it back on my car to cover the hole in my firewall.

Re: NOX on My LA car [Re: Challenger 1] #1613032 04/28/14 01:29 PM 04/28/14 01:29 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	There's the hole it goes in.

Re: NOX on My LA car [Re: Tropicalcats] #1613033 04/28/14 02:07 PM 04/28/14 02:07 PM
Joined: Jan 2003 Posts: 1,652 Calgary, Alberta Canada m46rat top fuel
m46rat top fuel Joined: Jan 2003 Posts: 1,652 Calgary, Alberta Canada	Quote: Talking with a guy this weekend and he said my LA 70 Challenger should have had NOX on the carb. Is that right? I do have the ECS system. When I got the car the carb had been replaced so can't tell if the solenoid shad been on the original. Thanks This would only be the case IF the car was delivered to a location in California when new. Otherwise it will not have that system on it. Your fender tag should have N97 on it if it were indeed the case.

Re: NOX on My LA car [Re: m46rat] #1613034 04/28/14 02:12 PM 04/28/14 02:12 PM
Joined: Jan 2003 Posts: 17,516 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,516 Las Vegas, NV	I'm not aware of any factory installed '70 NOX systems. Sound like some bad info! In the '80s a NOX system would've been required by CA DMV to be added to the vehicle by a new owner.

Re: NOX on My LA car [Re: Challenger 1] #1613035 04/28/14 03:06 PM 04/28/14 03:06 PM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: Quote: Talking with a guy this weekend and he said my LA 70 Challenger should have had NOX on the carb. Is that right? I do have the ECS system. When I got the car the carb had been replaced so can't tell if the solenoid shad been on the original. Thanks The NOX system monitored the speed of the vehicle and retarded the timing. It did not affect the carb I don't think. The timing vacuum controller did mount to one carb stud. Here's a picture of the harness of one when I restored my car. This mounts on the firewall on the passenger side. I put it back on my car to cover the hole in my firewall. What was the original motor on you gold 71 Challenger? Not all 71 Ccalifornia cars got a Nox system. Depended on motor and trans. And they varied some per model and trans.

Re: NOX on My LA car [Re: autoxcuda] #1613036 04/28/14 06:22 PM 04/28/14 06:22 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: What was the original motor on you gold 71 Challenger? Not all 71 Ccalifornia cars got a Nox system. Depended on motor and trans. And they varied some per model and trans. 318/904 when it was new, 71

Re: NOX on My LA car [Re: Tropicalcats] #1613037 04/28/14 06:26 PM 04/28/14 06:26 PM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Also, keep in mind that many people confuse the carburetor idle stop solenoid with a CAP/NOX device (which of course it isn't).

Re: NOX on My LA car [Re: ScottSmith_Harms] #1613038 04/29/14 12:35 AM 04/29/14 12:35 AM
Joined: Sep 2013 Posts: 180 T Tropicalcats OP member
Tropicalcats OP member T Joined: Sep 2013 Posts: 180	As always a wealth of knowledge. Got the definitive answer from Barry As far as OE goes, ECS was used in 1970 & NOx started with the 1971 model year. 1970 ECS info at http://www.hamtramck-historical.com/ServiceHighlights/1970PassengerCarHighlights09.shtml 1971 NOx info at http://www.hamtramck-historical.com/ServiceHighlights/1971PassengerCarHighlights-01.shtml

Re: NOX on My LA car [Re: Tropicalcats] #1613039 04/29/14 05:04 AM 04/29/14 05:04 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: As always a wealth of knowledge. Got the definitive answer from Barry As far as OE goes, ECS was used in 1970 & NOx started with the 1971 model year. 1970 ECS info at http://www.hamtramck-historical.com/ServiceHighlights/1970PassengerCarHighlights09.shtml 1971 NOx info at http://www.hamtramck-historical.com/ServiceHighlights/1971PassengerCarHighlights-01.shtml ECS was used on all California delivered cars in 1970. in 1971, all cars got ECS. The 1971 California Emissions system varied quite a bit per the engine and model and trans. For instance, a California 340 auto A-body got a full system with even a speed control device between the speedo cables and all the stuff Challenger 71 showed above. But a California 71 Challenger R/T 383HP auto, does not have the speed control switch nor the control unit assembly that goes in the hole in the cowl. Whereas the California 318 auto does have all those like pictured above. Confusing? Very. Drove the smog guys nuts for years. The 1971 repair manual has a far better description on the Nox system that what is on the Hamtramck Historical site. To really know what your cars had you need to know what 1971 model, trans, and motor. Last edited by autoxcuda; 04/29/14 05:41 AM.

Re: NOX on My LA car [Re: autoxcuda] #1613040 04/29/14 11:00 AM 04/29/14 11:00 AM
Joined: Sep 2013 Posts: 180 T Tropicalcats OP member
Tropicalcats OP member T Joined: Sep 2013 Posts: 180	And with all that said, my 70 LA car which has ECS had an after market NOX system put on that from the booklet was mandatory by the state of California. 8127872-image.jpg (76 downloads)

Re: NOX on My LA car [Re: Tropicalcats] #1613041 04/29/14 01:26 PM 04/29/14 01:26 PM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: And with all that said, my 70 LA car which has ECS had an after market NOX system put on that from the booklet was mandatory by the state of California. I think I have at least one 2nd gen Barracuda dash fascia with that sticker pasted right onto it. I always thought it was tacky when they stuck that sticker right on the dash staring at the driver all the time. There's another emissions related sticker on the windsheild you see. IIRC, it's from "Consumer Affairs" and says exempt on it I think. Our family's 1970 Vista Cruiser still has it on it.

Re: NOX on My LA car [Re: Tropicalcats] #1613042 04/29/14 08:13 PM 04/29/14 08:13 PM
Joined: Jan 2003 Posts: 974 www.mmcdetroit.com MMC Detroit super stock
MMC Detroit super stock Joined: Jan 2003 Posts: 974 www.mmcdetroit.com	Harness for speed control. I have a perfect original harness and I'm trying to find some one to make it from this pattern. 8128306-1971Harness.jpg (69 downloads) MMC/ ICCA Detroit. The Motor City or where ever there is Mopars

Re: NOX on My LA car [Re: MMC Detroit] #1613043 04/29/14 08:22 PM 04/29/14 08:22 PM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Dave M&H will help you with that. I have a good one from a 71 Challenger if ypu need it.

Re: NOX on My LA car [Re: ScottSmith_Harms] #1613044 04/30/14 01:52 AM 04/30/14 01:52 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: Dave M&H will help you with that. I have a good one from a 71 Challenger if ypu need it. Was it from a 318 or 340 car? 383HP car? I didn't see any signs of this on my 71 383HP auto car. And I haven't on any other california 71 383HP's. But they do get removed.

Re: NOX on My LA car [Re: autoxcuda] #1613045 04/30/14 01:53 AM 04/30/14 01:53 AM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	318 car, auto

Re: NOX on My LA car [Re: Tropicalcats] #1613046 05/01/14 12:45 AM 05/01/14 12:45 AM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	Quote: And with all that said, my 70 LA car which has ECS had an after market NOX system put on that from the booklet was mandatory by the state of California. LOL - back in the day when a car changed ownership you had to install a NOX kit to register your car. It's just a vacuum advance retarder. Cars with multiple carbs or cold air induction were exempt. Today the NOX upgrade isn't needed because the cars older than 1975 are smog check exempt.

Re: NOX on My LA car [Re: Morty426] #1613047 05/01/14 03:37 AM 05/01/14 03:37 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Here's a Consumer Affairs sticker I took on a car I saw yesterday. IIRC, a 66 Falcon. For 1966, a 289 if sold new in California will have an air pump. 8130051-IMG-20140429-02285.jpg (65 downloads)

Re: NOX on My LA car [Re: autoxcuda] #1613048 05/11/14 12:33 AM 05/11/14 12:33 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I understand people want the NOX system if the car is being restored to stock but do most who restore to all stock actually want it to work ? Myself I would gut the solenoid so I have vacum advance all the time as I am sure it hurt milage also. With the solenoid gutted you could still have it all hooked up and looking correct. And this was before EGR was installed as I believe we did not see the first type of EGR system until 72 or 73. Ron

Re: NOX on My LA car [Re: 383man] #1613049 05/11/14 12:42 AM 05/11/14 12:42 AM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Quote: I understand people want the NOX system if the car is being restored to stock but do most who restore to all stock actually want it to work ? Myself I would gut the solenoid so I have vacum advance all the time as I am sure it hurt milage also. With the solenoid gutted you could still have it all hooked up and looking correct. And this was before EGR was installed as I believe we did not see the first type of EGR system until 72 or 73. Ron A well placed BB inside each vacuum hose will effectively bypass it.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1