Question: Nitrous, the whole nine yards
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I have read about 30 posts here. The information is overwhelming. It's great to see that I can learn from my mistakes before I make them. I have wanted to run nitrous for years, but always though of it as cheating and dangerous. I installed it on my old iroc, but when I hit the switch, I got nothing. I tore that **** off and sold it the next day. Then I learned that nitrous is a catalyst and not a fuel. I also learned that you can put a great deal of nitrous on a car if done correctly. Now, I just purchased a ZEX dry kit 75-125 with the little fuel managment box. I know the poll of nitrous preferances showed that most don't prefer the Zex kit, but I bought it complete for 300 bucks. That's like 380 off the new price. Here are my questions. I know they may be redundant, but I think this thread may help alot of new nos investors. I just put brand new delco platinum plugs at .50 factory gap in my LT1 about 3 months and 100 miles ago before I decided to purchase nitrous.
-Has anyone had success spraying a 100 or 125 shot on a stock motor, with stock plugs, stock gap, stock timing, stock fuel system?
-Will running colder plugs and/or smaller gap cause any normal daily drivability issues?
-How do I retard timing on an optispark? I guess I need a timing control system of some sort? Do I really need to do so if running a regular 1-125 shot
-How the hell does a dry shot zex system manage fuel if it is a dry shot??!!
-Having fuel managment, can I move the dry nozzle closer to the throttle body or do I still need to install the nozzle before the mass airflow sensor like normal dry shot kits?
-Has anyone had success spraying a 100 or 125 shot on a stock motor, with stock plugs, stock gap, stock timing, stock fuel system?
-Will running colder plugs and/or smaller gap cause any normal daily drivability issues?
-How do I retard timing on an optispark? I guess I need a timing control system of some sort? Do I really need to do so if running a regular 1-125 shot
-How the hell does a dry shot zex system manage fuel if it is a dry shot??!!
-Having fuel managment, can I move the dry nozzle closer to the throttle body or do I still need to install the nozzle before the mass airflow sensor like normal dry shot kits?
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-Has anyone had success spraying a 100 or 125 shot on a stock motor, with stock plugs, stock gap, stock timing, stock fuel system?
yes, many of us however a colder plug is always suggested.
-Will running colder plugs and/or smaller gap cause any normal daily drivability issues?
No. no one has posted any problems with the colder plugs during normal driving.
-How do I retard timing on an optispark? I guess I need a timing control system of some sort? Do I really need to do so if running a regular 1-125 shot
Not really needed on a shot of less than 150. Just don't advance the timing or run a handheld tuner program (which advances the timing).
-How the hell does a dry shot zex system manage fuel if it is a dry shot??!!
you inject AFTER (edited) the MAF. The fuel delivery will be your problem on a LT1. They don't supply a heck of a lot of fuel. Consider getting a walburo 255 pump. Zex also makes one PART #82020
-Having fuel managment, can I move the dry nozzle closer to the throttle body or do I still need to install the nozzle before the mass airflow sensor like normal dry shot kits?
MUST be in front of TB. (edited)
yes, many of us however a colder plug is always suggested.
-Will running colder plugs and/or smaller gap cause any normal daily drivability issues?
No. no one has posted any problems with the colder plugs during normal driving.
-How do I retard timing on an optispark? I guess I need a timing control system of some sort? Do I really need to do so if running a regular 1-125 shot
Not really needed on a shot of less than 150. Just don't advance the timing or run a handheld tuner program (which advances the timing).
-How the hell does a dry shot zex system manage fuel if it is a dry shot??!!
you inject AFTER (edited) the MAF. The fuel delivery will be your problem on a LT1. They don't supply a heck of a lot of fuel. Consider getting a walburo 255 pump. Zex also makes one PART #82020
-Having fuel managment, can I move the dry nozzle closer to the throttle body or do I still need to install the nozzle before the mass airflow sensor like normal dry shot kits?
MUST be in front of TB. (edited)
Last edited by Todd157k; 12-13-2006 at 03:58 PM.
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Originally Posted by WONCAMARO
I have read about 30 posts here. The information is overwhelming. It's great to see that I can learn from my mistakes before I make them. I have wanted to run nitrous for years, but always though of it as cheating and dangerous. I installed it on my old iroc, but when I hit the switch, I got nothing. I tore that **** off and sold it the next day. Then I learned that nitrous is a catalyst and not a fuel. I also learned that you can put a great deal of nitrous on a car if done correctly. Now, I just purchased a ZEX dry kit 75-125 with the little fuel managment box. I know the poll of nitrous preferances showed that most don't prefer the Zex kit, but I bought it complete for 300 bucks. That's like 380 off the new price. Here are my questions. I know they may be redundant, but I think this thread may help alot of new nos investors. I just put brand new delco platinum plugs at .50 factory gap in my LT1 about 3 months and 100 miles ago before I decided to purchase nitrous.
Originally Posted by WONCAMARO
-Has anyone had success spraying a 100 or 125 shot on a stock motor, with stock plugs, stock gap, stock timing, stock fuel system?
Originally Posted by WONCAMARO
-Will running colder plugs and/or smaller gap cause any normal daily drivability issues?
Originally Posted by WONCAMARO
-How do I retard timing on an optispark? I guess I need a timing control system of some sort? Do I really need to do so if running a regular 1-125 shot?
Originally Posted by WONCAMARO
-How the hell does a dry shot zex system manage fuel if it is a dry shot??!!
Originally Posted by WONCAMARO
-Having fuel managment, can I move the dry nozzle closer to the throttle body or do I still need to install the nozzle before the mass airflow sensor like normal dry shot kits?
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#11
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I really appreciate all those who responded. I have everything installed now, but am curious as to where I can get my tank filled. I saw a site a long while back which listed all the refill stations in texas. Does anyone know if there are any stations in san marcos or austin texas.
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Alot of you guys are running LS1's with a larger shot than the OP is suggesting.
From this thread then, I would guess that the ngk tr6's are a good spark plug for a 125 shot, bolt on Lt1? anything else i should think of?
From this thread then, I would guess that the ngk tr6's are a good spark plug for a 125 shot, bolt on Lt1? anything else i should think of?
#15
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I'm running TR6s on a 150 0.38 gap, N2O tuned on a dyno. I have a LS1 timing tuner for a window switch.
Important advice to OP; it seems you did some research but I don t think you read enough on the subject.
1st, I would never run a 125 pill dry without new injectors,
2nd retarding timing,
3rd colder plugs
4th a FPSS or a better than stock fuel pump.
Finally without monitoring your A/F ratio.
I would add that nitrous filter is a very good idea too..but not essential. And watch you nitrous pressure too.. I always warm my bottle with the heater to 950-1000psi(a bit on the high side because I know my nitrous tune is very rich and safe).
But thats just my 02.
Important advice to OP; it seems you did some research but I don t think you read enough on the subject.
1st, I would never run a 125 pill dry without new injectors,
2nd retarding timing,
3rd colder plugs
4th a FPSS or a better than stock fuel pump.
Finally without monitoring your A/F ratio.
I would add that nitrous filter is a very good idea too..but not essential. And watch you nitrous pressure too.. I always warm my bottle with the heater to 950-1000psi(a bit on the high side because I know my nitrous tune is very rich and safe).
But thats just my 02.