Nitrous options

[speedysprocket]

I have all the 60K work done including valve adjustment timing belt rod bearings and magna flow Y-pipe, suspension and brakes and clutch. The injectors are good to 300HP or so? What do you guys recommend for a nitrous kit? Im only looking for 30-50hp boost.

Thanks.

 

[91PDXmocha]

Search button will give you the answers you seek . Tons of threads on n2o that has all the info you will ever need to get set up . Do some research , a zex dry kit will be what your looking for .

 

[zach44102]

Zex kit 82011 iirc. It is a dry kit. Do not run a wet system unless its a direct port setup. Be sure you have a healthy fuel pump and have copper plugs that are 1 or 2 heat ranges colder. If you spray anything over 75 shot id reccomend go ahead and putting in a Walbro 155lph fuel pump, But if you have a healthy fuel pump it should not be a problem. Id also get a wideband so you can keep a eye on your afr.

 

[SHOtime2511]

Autolite Copper 3923

 

[LOUDSHO92]

Zex: SHO Source

Make sure you have a 155 fuel pump.

 

[boogeyman]

not arguing with anyone but is there somthing about the NOS brand dry kit that does not work well with the SHO i know that the NMU on the zex is a nice feature but there are some people (like myself) that have been using NOS brand stuff for many years and swear by it im not against anything if it is better but im just wondering

 

[zach44102]

not arguing with anyone but is there somthing about the NOS brand dry kit that does not work well with the SHO i know that the NMU on the zex is a nice feature but there are some people (like myself) that have been using NOS brand stuff for many years and swear by it im not against anything if it is better but im just wondering

Not really. Many prefer the ZEX 82011 dry kit becasue of ease of installation and the NMU is a great feature. Also its going to be cheaper. There is somebody who pieced together a dry kit on here using NOS parts but dry nitrous is dry nitrous.

 

[boogeyman]

ok that was my thought as well about it but i wasnt sure it its was just one of those things that brand x works better than brand y on a particular application for some reason or another

 

[SHOracer14]

not arguing with anyone but is there somthing about the NOS brand dry kit that does not work well with the SHO i know that the NMU on the zex is a nice feature but there are some people (like myself) that have been using NOS brand stuff for many years and swear by it im not against anything if it is better but im just wondering

I had an NOS dry kit and it worked fine. Just extra wiring to the pedal switch and not as clean of a looking install because of the lack of an NMU box enclosing all the solenoids. I also had the zex kit on my GTP. Much cleaner and easier to install.

 

[boogeyman]

ok well im looking for a easier to hide kit than the zex kit i have so i guess ill just have to be more creative in my routing of things and the placement of th nozzle then

 

[zach44102]

ok well im looking for a easier to hide kit than the zex kit i have so i guess ill just have to be more creative in my routing of things and the placement of th nozzle then

Why not just hide the NMU?

 

[boogeyman]

i have that hidden in the fender well above the inner fender well. i need to find a good place to hide the nozzle so no one can see it or find it if looking thinking of drilling a hole in the bottom of the iac heater and puttting some 90 degree fitting on the nozzle and shrink wrapping the line in black so it blends in with everything else
have the arming switch hooked up to the rear defrost switch and a relay inside

 

[LOUDSHO92]

ok well im looking for a easier to hide kit than the zex kit i have so i guess ill just have to be more creative in my routing of things and the placement of th nozzle then

The best job I have seen hiding it was to put the NMU in a black box and put an MSD sticker on it. The bottel was mounted in the trunk under a full spare cover. The nozzle was mounted under the intake tubing so it would not show.

This was done by Tyler and you never knew he had a Zex kit.

 

[SHOracer14]

The best job I have seen hiding it was to put the NMU in a black box and put an MSD sticker on it. The bottel was mounted in the trunk under a full spare cover. The nozzle was mounted under the intake tubing so it would not show.

This was done by Tyler and you never knew he had a Zex kit.

On my GTP I painted the NMU black and mounted it to my intake box (which also looked stock). I then ran the line to a throttle body spacer. The line was hidden by using black wire loom and the spacer was hidden by modifying the stock engine cover to fit and hide everything else. I never went the header route and just used ported exhaust manifolds. The only thing that didn' look stock on my GTP was the smaller pulley I painted black so it wouldn't stand out. I even mounted the nitrous bottle where the spare tire would go and modified that cover to fit. That car ran high 12's in it's heyday and nobody was the wiser when the hood was opened.

 

[SHOtime2511]

In my old 91 I had the NMU mounted inside the stock air box.

 

[Siman]

I would run a wet direct port. Spraying through the MAF doesn't really compensate 100% for the change, could run lean. Nitrous is a bit corrosive and I'd keep it away from the MAF and throttle body. Also with non direct port systems you always have the scary problem of nitrous pooling in the intake manifold. Id only run a dry kit if I had an aftermarket ECU, MAP, and forced induction. Would introduce it right after the throttle body. The SHO intake manifold isn't really designed well for a dry kit but if your only going for a small boost in HP you should be ok just don't put anything over a 100 shot.

 

[SuperchargedSHOguy]

I would run a wet direct port. Spraying through the MAF doesn't really compensate 100% for the change, could run lean. Nitrous is a bit corrosive and I'd keep it away from the MAF and throttle body. Also with non direct port systems you always have the scary problem of nitrous pooling in the intake manifold. Id only run a dry kit if I had an aftermarket ECU, MAP, and forced induction. Would introduce it right after the throttle body. The SHO intake manifold isn't really designed well for a dry kit but if your only going for a small boost in HP you should be ok just don't put anything over a 100 shot.

You are completely backwards. The SHO intake is not designed for a wet shot. A dry shot works the best and does not puddle like a wet shot would. Granted a direct port system is nice, they are one offs and require alot more than a bolt on dry shot does.. Do not spray through the MAF, but any installation instructions will tell you this. I don't know where you think you are getting an aftermarket ECU for a SHO and you do realize we do not use a MAP sensor...thus the reason for the MAF, right? Please do not give out incorrect information.

 

[SHOracer14]

You are completely backwards. The SHO intake is not designed for a wet shot. A dry shot works the best and does not puddle like a wet shot would. Granted a direct port system is nice, they are one offs and require alot more than a bolt on dry shot does.. Do not spray through the MAF, but any installation instructions will tell you this. I don't know where you think you are getting an aftermarket ECU for a SHO and you do realize we do not use a MAP sensor...thus the reason for the MAF, right? Please do not give out incorrect information.

And to expand on that. The fuel gets compensated via the stock Fuel Pressure Regulator. Yes, I would recommend having a wide band O2 to keep an eye on things but the stock fuel system is completely adequate for a 75 shot.

 

[rooster]

Why are you trying to hide you nitrous components? Just leave your hood closed. Problem solved

 

[SHOracer14]

BECAUSE Sleeper!