problems with / opinions on ZEX

[1fast97gsx]

I'm picking up a zex wet kit today after work. I'll be installing it over the winter, but I was just wondering what other people thought of the zex kits and how reliable they are. How accurate are the shot sizes to hp gains? Pictures of setups would also help. Thanks.

 

[1fast97gsx]

I know the differences between wet kits and dry kits, but the zex kit confuses me ... It's a dry kit, but it has vaccum lines that raise the fuel pressure I'm assuming to make it like a wet kit? Is this safe or should I get a true "wet kit"?

 

[peanotation]

I know the differences between wet kits and dry kits, but the zex kit confuses me ... It's a dry kit, but it has vaccum lines that raise the fuel pressure I'm assuming to make it like a wet kit? Is this safe or should I get a true "wet kit"?

you definitely want to get a true wet kit. and no, it's still a dry kit. that's how the zex dry kit works, it bumps up fuel pressure so it relies on the stock injectors to deliver the extra fuel into the chamber, rather than T-ing into the fuel line to inject the fuel with the nitrous into the intake like a wet kit would. Wet kit is a lot better for many reasons, you should definitely get one.

 

[1fast97gsx]

ok cool. Thanks for the help .. I think I will use this dry kit and make an intercooler sprayer kit and buy a wet kit to spray the engine

 

[baxsom]

i know that zex makes a wet kit

on their website the application chart they only have their wet kit part #82021 listed
for the 4 cylinder eclipse

 

[1fast97gsx]

yea I just found that as well. Now I'm wondering .. I want to use my dry kit as an intercooler sprayer kit. The fuel pressure gets adjusted by vaccum .. will the kit still work if I just don't mess with my vaccum lines and leave the 2 nippples on the zex unit alone? I want to just spray nitrous against the intercooler and not affect my fuel system at all.

 

[peanotation]

yea I just found that as well. Now I'm wondering .. I want to use my dry kit as an intercooler sprayer kit. The fuel pressure gets adjusted by vaccum .. will the kit still work if I just don't mess with my vaccum lines and leave the 2 nippples on the zex unit alone? I want to just spray nitrous against the intercooler and not affect my fuel system at all.

i don't see why you would HAVE to hook it up to your fuel lines, you should be fine with not having to do that. why don't you call a zex-tech, they can help you out with beginner stuff like that, and it's free.

 

[67goatpimp]

my buddy has had NOS, NX, and ZEX kits, i've helped install/ worked with/ driven all of them. ZEX is the best he's had by far (Granted this is on a focus) and it was true wet kit. second being NX, with NOS bringing up the rear. but i don't have any experience with the dry kit but the wet kit is excellent and i'ld recommend it to anyone.

 

[1fast97gsx]

my buddy has had NOS, NX, and ZEX kits, i've helped install/ worked with/ driven all of them. ZEX is the best he's had by far (Granted this is on a focus) and it was true wet kit. second being NX, with NOS bringing up the rear. but i don't have any experience with the dry kit but the wet kit is excellent and i'ld recommend it to anyone.

ok cool ... just curious .. who is your buddy? I used to live in evansville back in the day ( 10 years ago ) .. maybe I know him.

 

[GSGoinFast]

i love my Zex wet kit its awesome. by any chance is this for your NT or your GSX? if its for your Nt, its not a 95 right. i dont think you can run a dry kit on a 96+ model.

 

[1fast97gsx]

i love my Zex wet kit its awesome. by any chance is this for your NT or your GSX? if its for your Nt, its not a 95 right. i dont think you can run a dry kit on a 96+ model.

Actually it was for the gsx ... I'm just gonna use it to spray the intercooler now like the nx ntercooler kit and get a true wet kit to spray the engine. But yea my non turbo is a 95, I'm just afraid to blow it up.

 

[GSGoinFast]

Actually it was for the gsx ... I'm just gonna use it to spray the intercooler now like the nx ntercooler kit and get a true wet kit to spray the engine. But yea my non turbo is a 95, I'm just afraid to blow it up.

your NT can handle it. mine is

 

[1fast97gsx]

your NT can handle it. mine is

yea ... but it's not worth it. If I spray a 35 shot or even a 50 shot I still don't think the car would do better than a 15.8. And that's on spray ... kinda pointless and still a ridiculous time. I would be afraid to spray more than 50 so in the end it just doesn't seem worth doing it.

 

[GSGoinFast]

yea ... but it's not worth it. If I spray a 35 shot or even a 50 shot I still don't think the car would do better than a 15.8. And that's on spray ... kinda pointless and still a ridiculous time. I would be afraid to spray more than 50 so in the end it just doesn't seem worth doing it.

a 35 shot? your right that is pointless, i could barely feel my 55 shot... now that im spraying 75, i would say theres a difference. im hoping to break into the 14's when i take it to the track.

 

[exzercist]

good luck with breakin the 14s cuz ur gonna have as much horse as a gst or sx and traction probs. dont get ur hopes up and watch that hg.

 

[GSGoinFast]

good luck with breakin the 14s cuz ur gonna have as much horse as a gst or sx and traction probs. dont get ur hopes up and watch that hg.

actually i will have more then a GS-T. altho its suppose to be at the wheels, lets just assume the shot only gives that power to the crank. thats still 215 to the crank. then my other mods, CAI, header, 2.5 inch down pipe, 2.5 inch high flow cat, 2.5 inch cat back exaust, UDP, and S-AFC II, i think i could jump into the 14's with some good driving. cuz GS-T's run what, 15.1, 15.2 stock? i think i can hit it.

 

[exzercist]

oh im not sayin you cant or wont i saying that what the professional drivers do is way different then all of us. just get some traction and you should be fine. i didnt look at your mods you will prolly have 215 to the ground with good tuning. ive seen many hg pop on nt so watch out. be carful and dont go to crazy.

 

[GSGoinFast]

oh im not sayin you cant or wont i saying that what the professional drivers do is way different then all of us. just get some traction and you should be fine. i didnt look at your mods you will prolly have 215 to the ground with good tuning. ive seen many hg pop on nt so watch out. be carful and dont go to crazy.

haha i couldnt figure out what you ment by hg, and all of a sudden today at football i got it . ya im replacing the head gasket in january. im gonna start a thread now, i cant get a strait answer about fuel curves for nitrous. hopefully dsmjim will get in and answer. we shall see soon what i pull off, i might be going to the track friday.

 

[exzercist]

what you need to know about fuel curves.

 

[GSGoinFast]

what you need to know about fuel curves.

how to tune my afc for when im spraying... i know how to do it for NA but im not sure about nitrous. i started a thread about it in the nitrous forum.

 

[JWoodley]

I'm spraying the zex wet 75 with no fuel control. I've got similar mods to you, with a few extra more here and there as well as a few surprises. Feel free to catch me on AIM, I'd like to see how similar our times are. In two weeks I'm shooting for a 9.59-9.65 in the 1/8 at around 80mph. (Best so far is a 9.82 @ 76 with a 2.4 60ft. I plan on dropping the 60ft by about 0.3...)

 

[exzercist]

so are you doin like 14.8s in the 1/4?

 

[99gst_racer]

I'm just gonna use it to spray the intercooler now like the nx ntercooler kit and get a true wet kit to spray the engine.

There will be no need for an intercooler sprayer when using a wet kit. The cooling effect from the wet kit is more than an intercooler sprayer anyway. With a wet kit, an intercooler would not be heping. It would only waste Nitrous. Use the IC sprayer until you install the wet kit. Thats what I'm doing.

You do not need to hook vacuum lines to the fuel system for an intercooler sprayer. And yes, part # 82021 is the correct part number for the Zex wet kit for our cars. I would not recommend running a dry kit on the 4G63T. Read this thread for reasons.
http://www.dsmtuners.com/forums/showthread.php?t=138012

Keep us posted on how that IC sprayer or wet kit works. Also, post some pics of the install...

 

[GSGoinFast]

I'm spraying the zex wet 75 with no fuel control. I've got similar mods to you, with a few extra more here and there as well as a few surprises. Feel free to catch me on AIM, I'd like to see how similar our times are. In two weeks I'm shooting for a 9.59-9.65 in the 1/8 at around 80mph. (Best so far is a 9.82 @ 76 with a 2.4 60ft. I plan on dropping the 60ft by about 0.3...)

ya i was spraying on no fuel controll either. actually i still am, when i spray i change to my other data file which has no correction for spraying. im planning on doing some dyno runs in the near future to tune for nitrous, but untill then i will be running without fuel controll. i am however going to try and get to the track either next saturday, or the saturday after that, weather permitting, so ill let you know how that goes. i think you will be a little bit quicker then me, cuz you got TB, manifold, and high flow, but we'll see, im not such a bad driver myself.

 

[GiRlsGoFaStEr]

Hello. I bought a Zex kit and a friend and I were almost finished installing, but when we were going to tap into the Fuel Pressure Vacuum hose, we found that it lead under the car and not in the engine. I have a 99 Eclipse rs-t to give you some idea of the set up in the engine. Is there another vaccum that we can tap into? Because the only one we could find was for the fuel line i believe and it started to leak fuel when it was tapped into. Then again, he may not know what he is doing. Does anyone know specifically where this hose needs to be put? I really appreciate any help you can give me If not, i will just take my car to the Performance shop and let them rob me to finish the installation. What is really weird is that we hooked it up and set the Zex box and the light indicated green saying that it was working and getting the pressure or whatever it needs, yet when we went ahead and finished it up and ran it under the car and started it, it started to leak fuel. So I think this could be the wrong hose and he is going to kill me!!! j/k Thanks