EvilLs1

Hi I bought a used ZEX dry nitrous kit and I need help I need to know where to connect the intake and the regulator hoses to my stock ls1 ? Also if I need to connect the nozzle before or after the MAF sensor ? Plz help I need to finished the install by Sunday... Stock air filter tubing.

Todd157k

Most of the N2o boys hang out at LS1tech. On a dry kit, you put it in front of the MAF.

EvilLs1

Ok thanks. Those it have to be away so many inches from it?? Or it don't matter?

Todd157k

I had mine about 4-5 in away. you want a nice pattern but not too wide as it hits the maf wire. Also, LS1, remove the screen. Careful not to f up the little wire in the middle.

EvilLs1

Ok kool. So u saying to removed the screen inside the MAF?? Well that be better wit the n2o??

Todd157k

yes. the screen on the maf. yes, works better.

EvilLs1

Just eliminated the screen. But do u know where to connect the intake and regulator hoses to from the zex box to the manifold ?

mrr23

i wonder what would happen if you called zex and asked them for the instructions???

http://www.zex.com/

PHONE: 1-888-817-1008

as far as hooking up the regulator line, that won't happen as the fuel pressure regulator has no vacuum line going to it.

i found this basic instruction sheet from zex online pretty easily

http://news.compperformance.com/Instructions/ZEX109.pdf

EvilLs1

I called ZEX and they said they don't make the dry kit for vettes because they have no fuel return line... So I can't use this kit on my vette. Only the wet ZEX kit..

Todd157k

ok.. we need to step back here a little. I'm getting the feeling that you have not done any of this before. There's a LOT of things to do looooong before you get to push the button.
You can use a dry system (like I did) on a vette w/o a fuel return line. You will need larger injectors, a BAP (boost a pump), colder spark plugs, and tuning. You also "should" have some safety stuff like a Fuel pressure safety switch (may be built into the Zex box.. I dunno), first gear cutout switch (manual trans).. and the list goes on and on.
If you can afford to buy another motor, just bolt in their kit and flip the switch. I will be a very fast n furious couple of minutes.

oh.. as for a vacuum line, the only one is on the rear of the intake manifold and almost impossible to get to without taking off the manifold.

mrr23

He won't need larger injectors and a boost a pump unless he is going to run a large out of nitrous. Usually above 125. Tuning is debatable. Stock tune should be no issue.

I know this as I have run thousands of pounds of nitrous In my cars.

The zex kit needs to go.

EvilLs1

I'm goin wit the zex wet kit instead I forgot I had it lol.. I ya e everything set up. But. I need to know wich wire in the tps sensor do I tap into ??

mrr23

I think blue but again calling zex and getting the instructions from them would be much quicker than here.

I found the instruction for you here by doing an Internet search

http://www.rpmoutlet.com/c5zex.htm

mrr23

https://www.corvetteforum.com/c5-for...ml?styleid=140

And a search for tps wiring for a 2000 corvette on here resulted in someone asking this question who was installing a zex kit back in 2005