NOS nozzle placement? And then some.

[sleepyalero]

So i got a nos kit with bottle warmer, purge sol, brain, bottle, brackets, all hoses and couple of shots. Couple things here...

1. Where would be the best place to put the nozzle in the intake? Between the TB and MAF? or between the filter and maf?

2. Anyone know where to find a ZEX shot guide? I have 4 shots for the kit. One is #38 and i know thats a 75 shot. The rest idk what shots they are and ive been looking for a guide that says what they are but cant seem to find one.

3. Anyone here running NOS? where should i run the T fitting for the fuel?

This is a dry kit btw. Thanks for the help.

[[ion] C2]

Don't say "NOS" as a generic term for nitrous. This isn't F&F.

If it's a dry kit why do you have to tap the fuel line? lol

[Redog]

Everytime somebody says "NOS" a car commits suicide

a 75 shot is way too much on a stock motor. People have ran 50 shots with some problems.

If your going to spray, a wet kit is better and safer, and usually more expensive and complex. Did you buy this kit used? Is that why you don't know what jets do what? I would look on ZEX's website for more info.

I've heard of people putting the jet around the filter somewhere. Don't take my word for it though. I'm no bottle and all throttle

[zearchyo]

Originally Posted by Redog

Everytime somebody says "NOS" a car commits suicide

[AleroB888]

Originally Posted by sleepyalero

So i got a nos kit with bottle warmer, purge sol, brain, bottle, brackets, all hoses and couple of shots. Couple things here...

1. Where would be the best place to put the nozzle in the intake? Between the TB and MAF? or between the filter and maf?

2. Anyone know where to find a ZEX shot guide? I have 4 shots for the kit. One is #38 and i know thats a 75 shot. The rest idk what shots they are and ive been looking for a guide that says what they are but cant seem to find one.

3. Anyone here running NOS? where should i run the T fitting for the fuel?

This is a dry kit btw. Thanks for the help.

This is going to be tricky. I would say put it before the MAF. Some tuners have done it after the MAF dry, but I think it needs to at least attempt to react to the change in 02 input. But you don't want it close enough to freeze the damn thing. Just after the filter would be safest.

I have seen a 75 dry shot successfully applied to an Alero V6 on a dyno, but that was in the thin air of Denver.

I would start with a 35 shot only at wide open throttle, because you MUST retune the PCM for a richer target AFR in Power Enrichment (PE), and possibly adjust the higher range of the MAF table. And may have to pull some timing at wide open throttle.

The problem with that is, when the Nitrous is not in use, the PCM would run it slightly rich at wide open throttle.

If the PCM can be made to react to the change in IAT, in timing and AFR, that can be a good route to go.

There is also a table, "Power Enrich Adder vs TPS" which could be useful.
( HA, I just looked at mine, it was way off for some reason, bet that's what's wrong with my cruise scans. HOT damn )

Good luck!

[sleepyalero]

Sorry for calling it nos i just didnt feel like spelling out nitrous but alright. Anyway on the brain of the system there is a nozzle that a hose goes to for fuel. The car will have a tune. I have a wideband coming in on monday.

Yes i bought it off pf a guy on GAGT.

Quite a few people that run around the southside area of downtown with no tune, stock motor, and 75 shot lol

[sleepyalero]

there are 2 nozzles on one side of the box, 1 is to take in fuel, 1 is cor vaccuum. and there is an output on the same side for nitrous.

[sleepyalero]

i will noy be running nitrous until i get a good tune setup. ive been reading on gagt and they say you DO NOT want to run without a tune.

[xbxradxsx]

Technically, using nos in place of Nitrous Oxide System would have fit there. It is honestly getting more irritating seeing people refer it to f&f than reading nos and ignoring it. I swear you guys point it out every time it's typed and then leave 5 or so comments about it. Get over it.

[sleepyalero]

yeah its whatever though, i know how all these guys are so im used to it. lol

[[ion] C2]

Originally Posted by xbxradxsx

I swear you guys point it out every time it's typed and then leave 5 or so comments about it. Get over it.

tell that to the entire automotive aftermarket community

no one likes to hear it referred to as "NAAAAHHHHSSSSSS"

[sleepyalero]

hahahah what about n2o?

[zearchyo]

what about this company

[sleepyalero]

yeah! anyway we are way off topic here......lol

[Redog]

NOS, is a company, not the stuff itself

I call it spray. That's what it's called at the track

[sleepyalero]

i like spray better lol. anyway the instructions say i need the nozzle to be 6- like 14 inches away from the tb. but kinda not possible because i might freeze/throw off the maf or iat? and the car would run messed up?

[AleroB888]

Originally Posted by sleepyalero

i like spray better lol. anyway the instructions say i need the nozzle to be 6- like 14 inches away from the tb. but kinda not possible because i might freeze/throw off the maf or iat? and the car would run messed up?

Research what the LS1 guys do, experiment to get the best distance and angle to mount it ahead of the MAF, so it reacts properly. As long as there is not a lot of moisture at the screen, you should be OK. But I would not remove the screen, too hard to tune afterward. Can go with a stock type air housing as well.

[sleepyalero]

yeah ill figure it out. but zex says you should have it between the maf and tb. but most people i know using spray puts it between the maf and filter. just like that ls1 lid.

[sleepyalero]

this is what the previous owner told me.

Good question. The fuel pressure regulator port I believe is the center one, goes directly to the top of the FPR. Since I painted it, its no longer labled, but I think I entched a "FP" just about the port.

The intake (the left port i think) I ran to the intake vacuum port on upper intake right next to the FPR.

Now u r left with 2 factory vacuum lines. I just looped the intake line back into the FPR line. That way there is a vacuum for the HVAC.

Try it out and let me know if you have anymore questions.

where is the fpr?

[Redog]

If you have to ask where the FPR is, then you should NOT be spraying any car.

The FPR on the 3400 is next to the throttle body, on the front of the engine