Im looking to install a Zex dry kit on my sohc zc non vtec.

Ive looked all day before posting this so please dont bitch.

Just looking for an indepth how-to on how to install the kit, wire it properly, adjust the timing, tap the intake etc etc

First- what size tap will I need for the intake? because school is over very shortly and I have a spare intake I can tap

Thanks for the help

 

Just one question, why did you choose dry instead of wet?

 

Heard the install was easier, cheaper kit.

Was on a budget and found a great deal for the kit / purge / heater /gauge for $350

Just need some help installing it, a guide whould show me how much trouble Im getting my self into and if I should bring it to a shop (no money to do so anyways)

 

Dam, I was gonna make a nice one for my kit as well but didnt think Id have the time or knowledge to explain it good enough.

Someone help the guy

 

giddy up

 

I thought about running a small Zex shot in my LSVTEC, but I think wet would be the more reliable way to go.. thats why I asked.

 

Who woulda thought?

http://zex.com/Technical/Instr...s.pdf

 

But that shows nothing on how to adjust the timing

Also I didnt see it mention how to activate the nitrous? Like dont I have to make it so the nitrous comes on during wide open throttle? I didnt see that there

 

Most definately go with the wet... Your going to save yourself alot of trouble.

 

Dry kit is already in my possession

Just need some help

 

Oh boy ... what I'd do is wire it up in the instructions, then move the throttle rotor to WOT and see if the solenoid turns on.

Search for retarding timing

 

Oh so I really dont have to do anything about the WOT? I thought I had to to something, Im assuming the wiring that the instructions give me somehow does it for me?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StealthEF &raquo;</TD></TR><TR><TD CLASS="quote">Oh so I really dont have to do anything about the WOT? I thought I had to to something, Im assuming the wiring that the instructions give me somehow does it for me?</TD></TR></TABLE>

The ZEX box is wired to the TPS sensor, that's how it gets it's signal. There's a procedure to ensure that it works properly though ... I forget how you do it.

Actually, look at STEP 9

 

hmmm, seems to be all coverred except for the retarded timing

2 degrees for a 65 shot right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StealthEF &raquo;</TD></TR><TR><TD CLASS="quote">hmmm, seems to be all coverred except for the retarded timing

2 degrees for a 65 shot right?</TD></TR></TABLE>

To be safe yes, roughly 1degree per 50 and 1 step colder plug per 50. Of course 2 degree and 2 step colder plug would be your best bet. If your going to use the nirtous primarily at the track it would be a good idea to change your plugs out when not on the bottle.

 

hmmm I just bought some sparkplugs 2 there

NGK IRIDIUM BPR5EIX

Just reading that off of the extra spark plug, dont know what can be found form that

 

Ouch, those are hot plugs, not good for nitrous, youll want something in the 7-8 range. I use 6's in my ZC...5 is too hot for n2o.

 

Higher the number means colder the plugs?

I just got the zex plugs with my kit and gapped them to 46 I think, so Im assuming there good

 

Yup, 46 is good, 1.1mm. And yes lower number is hotter, higher is colder, ranges from 2-11. you want colder plugs due to the extreme combustion chamber temps with nitrous, it prevents detonation. Grab some 7's-8's.

 

So is there any perticular brand?

Or can I just look at the numbers on the boxes until I find a 7 and buy them? Or would 8 Be better

 

giddy up

 

get the ngk's

like the others said the zex bocks hooks into your tps to work at wot


you might look into getting an msd window switch so that you nitrous is only on through a certain rpm range, this will help with wheel spin, and prevent you from running nitrous when you switch gears.

 

need some info for the vacuum lines that hook up on the left side of the zex box, what are those 2 fittings for?