what model number kit is it???

 

no one knows???? I'm guessing single stage efi?

 

dont know model number but i remember it said something like import efi kit

 

the kit # is 20923-10. i,ve had great luck with it but i,m only running a 50 shot with 1 jet size richer on the fuel and 1 step colder ngk iridium because i have the tecnosquare ecu and it advances the timing alot and changes the A/F ratio. also the purge kit helps about 2/10ths# 15600

 

anything different to note when installin due to the drive-by-wire on the z?

 

what do you mean by the "drive by wiring"?

 

Drive by wire means our throttle is electronically activated in correspondence with the foot peddle as opposed to a direct cable from the peddle to the throttle body.

The guy I talked to about installation on mine said he wanted to use a TPS sensor to control the system as opposed to a WOT switch as he was afraid the switch would bend or become damage (opinions, facts??). He wanted to use a NOS kit with a ZEX TPS switch. What do you guys think of that? Any better ideas?

 

You can use TPS w/ a WOT switch. IOW, you can WOT only with the ZEX, NX wet kits.

With LS1's you removed the shrader valve and tapped there. not sure on this car but I know it is how my car was run (TPS and WOT switch) , I didn't do the install I paid someone to.

 

Why would you have both? Seems redundant.

 

I am not sure, I cannot tecnically answer your question only that I did have both with both a NOS dry and Zex Wet kit.

I would guess the TPS tells the micro switch when it is WOT or vice versa but I hate guessing and that all I have is a guess.

Maybe someone more technical will answer. I am quite sure the TPS Tap is mandatory though and every kit I know sold is WOT unless you bypass the switch with a window switch to prest rpm's. Here is a question to your question.

If you ran a window switch would you still need a WOT switch?
If the answer is no then how would you do say a ZEX window switch install? Where did that McDan go remember him and him trying to get an MSD window switch to work with ZEX WOT Kit?

 

Well, I gotta tell ya that I would want a window switch with my WOT switch. I only want nitrous engaged at WOT and I do not want it engaged through my shifts. I have a manual and if I am going to powershift it, I do not need nitrous to be hitting the rev limiter and I do not want nitrous to be hitting my clutch release either. I want it to engage a couple hundred RPMs after the revs fall from the shift and the clutch is out and I want it to stop spraying a couple hundred before I shift to protect my motor. This is especially important for automatics because if you spray through shifts with an auto, goodbye tranny before long.

 

My ZEX kit works great through the TPS..........

ZEXXYYY

 

i never thought up settin one up like that; sounds solid.

 

good point. power shifting while on nitrous will tear up the tranny.

in my case (auto), i was using the wot switch and a push button switch sitting a few inches from the shifter. BUT that did get annoying after a while. ne way i just built a switch that activates when im in manual mode, and shuts off when i shift up and then turns back on when i have completely shifted.

as long as im holding the shifter in the shift up position, nitrous will not spray. the second i let it go, nitrous starts to spray. this happens through every shift of course. im sure my tranny is thanking me. kinda hard to explain in words i guess. ill post some pics when i instal in next month.

now there is a way of doing this with the manual trans, but its a bit more complicated. more wire and more switches.

with the window switch, the only time its really going to be usefull is first gear. you wont drop below 2k rpms after your in 2nd gear during wot. if your waiting past 2k rpms to spray, your just hurting your 1/4mile time. so as a recap, window switch wont really help you save your trans when you power shift. your best bet in that case is to get a wot switch and use it in conjuction with a push button of some sort. this way for nitrous to spray you have to be wot and pushing the button. (this will get annoying real quick) if anyone wants, i can look for a pic of my old setup and show you where i had placed my push button?

peace

 

That's the purpose of the window switch. I don't want to get annoyed at any time with my nitrous setup. It will all be automated after I turn it on. The switch is to save my motor when I shift (powershift) and it is also to help the clutch grab better and last longer when the clutch comes out. When you shift at redline, the revs don't drop anywhere close to 2K, more like 5K. I haven't checked in a while and can't remember, it's irrelevant at this moment anyways, but wherever it falls, that's 200 (or so) RPM before I will have the window open (activate). So then the clutch will be all the way out and ready for the nitrous hit. Pretty simple, safety is priority when playing with nirtous for me at least. I want it easy, I do not want to add my own human error to the process, and I want it controlled completely.

 

rpm's don't drop a static amount goin into each gear though, right? i would think it might b different as u go up through them.

 

true but the difference is marginal and the window switch only works on preset RPMs which I think are whole 1000's so it would be a bit of a rounding up game.

 

yeah; u'd just have to play around with it. that does sound like it would b optimal though. i know in my civ traction sucked; the z would b 10 times worse. a couple hundred rpm's before it would start to spray in each gear would help a lot. thanks for sharin that idea.

u think the kinetix plenum will cooperate with nitrous?

 

i'm a little worried what a 100 shot would do in 1st gear. when it started to spray, wouldn't the rear go out? i'm talkin street tires now. would it b safer to arm in 2nd?

 

I've been in a g35 sedan runing a 125 shot, in first gear the tires would just spin out.... and you'd redline real freaking quick!

Then the car moves laterally, as we all know these cars can do so well..... and it would continue spinning out into 3rd gear where it would finally catch....

Peace
-Eric