Hey everyone. After much thinking, I've decided to go the way of the bottle. I was wondering if anyone had experience with the NOS system sold by cattmen, it comes with the JWT ECU, the NOS control module, and all the hardware. It's a 65 shot, and I read on these forums that a lot of you guys are going with the 75 NX wet system. I kinda want to buy everything at once so the install will go quick ( I hear installing NO2 yourself is a no no). Where are you guys getting your systems from and how much do they cost? I'm sure this has been discussed before but the search isn't working for me. Thanks for your help.

 

If you are wanting the JWT system, it's going to run you around 1500

 

just got a kit from ebay..... 575 shipped for nx wet kit + nx purge valve...

 

Installing the system yourself is the best way to be familiar with the system and since you installed it yourself its so much easier to troubleshoot things since you handled all the parts before and knowing how each part works. Just do alot of reading and research before you start insalling so you dont go blindly into the project.

 

Is that a for a V6 and is it new? That is a pretty good deal.

 

Oh so you can install it yourself. That's great, I like to do things like that. It's just that I heard of people's cars exploding because they did one little thing wrong, but I suppose if you just follow the instructions nothing can go wrong. Does anyone know if the JWT system is a good one? I know it's kinda expensive, and it's a dry system. I see a lot of people here are running wet. I thought for our cars wet would be an advantage. What do you guys think?

 

It's a good system, just rather expensive

 

Blaxima911,

I don't know if the ECU that comes with the NOS kit gives much more hp over stock, but you can easily run a 75 shot on a NX kit and im sure would be the same...and the good thing also with the NX kit is if you feel the need for more power just change the nozzels....having a programed ECU for your nitrous is going to make you slower all motor and forcing you to stay at a 65 shot. why spend a grand to run a 65 shot of nitrous when u can do it for 500 bucks with a NX kit that needs no ECU cuz there is no tuning involved with the wet kits

 

How would having the JWT ECU make you slower when you aren't spraying? Please explain

 

Since when did Jim decide to change the settings on his nitrous programs? Until now, all the nitrous programs were set up for a 100 dry shot. If i am wrong someone please explain.

If i were looking at nitrous for the first time i would specifcally ask Cattman 'AND' JWT if this is a specific nitrous program only allowing the use of a 65 shot? I have a feeling that it could be a 100 shot program and Cattman is marketing it at 65, for whatever reason. To be on the safe side confirm with Ben at JWT about how many different programs they are producing for their n2o set up.

If in fact it is only designed to run a 65 then i would look elsewhere for a system, because upgrading the JWT is waaaaay to much of a headache. On the other hand if the program is for the 100 shot and you are really commited to nitrous, then i say go for it.

Speaking from experience the JWT system is great for worry free plug and play. So if you think you would be satisfied with 100 shot of nitrous(its plenty) this would be a great choice. On the other hand if you want flexability with the prospect of going higher than 100 shot one day, then look into NX wet kits. Just remember the higher you push the shots of n2o the more important it is to make sure your car is tuned perfectly. What i mean by that is when you start to get near the 75 shot with anything other than a JWT(or the likes) tuning on a dyno becomes all the more important. Sure you could push the envelope and get away with a lot more (because our engines are very forgiving), but to be in the margin of saftey that JWT puts you in you must start factoring the money and time spent on the dyno in order to not push it to far and creat(sp) a major engine failure. Hope this helps you in some way.

 

JWT starts out with a 65 shot, but you can specify if you want a higher one. Not sure how much more that would cost though.

 

Thank you, for once i am wrong and now stand corrected.

This leaves me to belive that if Cattman gives the 65 shot program with their package you would be better off paying slightly more for the 100 shot or finding another set up all together.

 

Because I herd the ECU program is set up to retard your timing....?

 

The ECU has two modes and comes with a toggle switch to go back and forth from them. NA mode is like having just a regular ECU so you get all the gains from that. It advances timing and a bunch of other stuff that gives you power. In nitrous mode, as soon as you go wide open throttle, the timing is retarded, fuel is dumped and off you go.

 

What I would like to know is do you guys think it would work with a NX kit? Would it cause a problem if you just got the electronics part of it (retarded timing), but didn't run their dry system? I want to get nitrous but I don't want to lose my extended rev limiter or the advanced timing off the bottle, but I'd like to be able to change the shot if I wanted to. I called and talked to Ben about this and he acted like I wasn't even speaking. He just kept talking about the NOS kit they sell and wouldn't give me a straight answer about any other kit. I'd like to be able to hit a switch, drop out of the advaced timing mode, and spray with whatever kit I wanted. I suppose someones just gonna have to try it cause I don't think anyone will get a straight answer from JWT about it.

 

You know what sucks? I just spent 15 minutes writing a researched 4 paragraph response to this thread and the server timed out. I hit back it just keeps saying I timed out. I couldn't get it back.

Anyways BSwithTF, I think the JWT ECU is optimized for a dry system, where additional fuel is pumped. This may not be good for an NX wet kit. The best thing to do is give them a call themselves and find out.
-Cyrus

 

From what I understand about their system, when in nitrous mode the ECU monitors the A/F ratios in the engine and compensates for the NO2 with additional fuel through the injectors. If the A/F stays in an acceptable range via the extra fuel from the wet system, then hypothetically, it wouldn't send any more fuel through the injectors but you would get the retarded timing.

Another question arises, is the degree of timing retard based on the size of the shot or is it preset to a certain amount (say back to the stock setting or just under).

These are all questions I asked Ben who basically avoided them by what sounded like reading me the description of the kit from their website.

 

These are good question that Ben has the knowledge to answer don't know why he was aloof. I've heard that the program compensates for the amount of n2o you run, but i tend to doubt that. I believe it is a predetermined system set up to run a dry shot. Just think about it if there was a way to monitor the a/f ratio's quickly enough and be adjusted through the JWTprogram then why would they need to know what type injectors, maf, and a multitude of other factors that come into play. I think it is a preprogramed setup with a sizable margin of human greadyness built into it, that is why they recommend you not exceed certain limits.

I have one of the first unit they produced and still get conflicting knowledge or hearsay. I am speaking from my experiences that has brought me to the conclusions above. Once again if you want plug and play go with the JWT 100 shot system and you will be happy. If you are the type of person that must meddle then choose a quality n2o manufacturer an take your time tuning.

caveat: NX systems are not superior to NOS they both produce good wet systems. NX just happens to have the F&F hype going for it. If you are one to need competent personal technical support then my money would go on NOS.--just a preference derived from many different personal dealings with both companies.


Edit: Maybe try to call JWT back after the holidays, i know, they should always be willing to serve their potential customers--but get used to this for JWT. Also, if you wanted to eventually upgrade your JWT system you could wait months for a reprogram or ask some local and knowledgable performance shops on ways you can trick the computer. I don't know how easy or difficult it is but it CAN be done.

 

That's a good point. I guess I was thinking it was a lot more advanced than it is.

I also asked Ben if he could simply put a raised rev limiter in but leave the timing alone. He again said no, you have to buy the entire program. It may have just been a really busy day or something and he didn't have time to discuss a lot of avenues. Is there anyone else there to talk to? He's the only one I've ever gotten.

 

You would not want to run a n2o program without retarding the timing.

I know this is a shot in the dark because there are plenty of John's in this world, but i seem to recall speaking to a guy by the name of John who was very helpful. I would try to ask the receptionist the names of other people that have been involved in the development stages of these programs...something like "who all works in the tech dept" or say you "can't recall the name of the tech that you spoke to a few months ago but if she could rattle off some names it would jog your memory".

Most importantly try doing a lot more research about JWT systems before calling them back. It is mind boggling who many people call these guys with the same questions daily, hence the reason for the bulldog that answers the phones. Especially hold off till the new year, all businesses are in the weeds trying to get as much product out right before the holidays.

If you want you can pm me with your # and i'll give you some feedback of my own experiences with the program.

 

yeah brand new for both.... still in packaging... got it off ebay...