what are the opinions on the zex nitrous kits
also what do you think about ctr or itr cams for small engine internal upgrades.

 

From what i hear zex is a pretty good kit. Its really easy to install and the little unit does everything for you. I think most people like NX or NoS kits. Im personally going to start with a ZEX kit then move up from there.

 

I may not be of much help but, i do have the zex kit in a stock 91 civic hatch dx with 132k miles and all i put into it was a new stock air filter zex cold spart plugs and injector cleaner (because i run that DPFI) it runs strong and i get on it hard with the 55 jets at stop lights all the time. i've used about 4-5 bottles in the 2 mounths since it has been in my car. nothing major yet, just the auxilary injecter got a hole blew in its seam (code 16) free 5 min replace!! its all good! GET IT

 

im rebuilding my jdm b16a (srp 10.5:1 pistons, eagle rods, closed deck, zero balanced) and i plan on using a ZEX dry kit after i break it in...i wanna run at least a 100 shot..i know the bottom end will hold up...anyways...i have a N2o station where i work and 90% of the bottles i fill are ZEX..i asked and none of them seem to have any problems...in fact 2 other guys where i work use ZEX..on is a 92 hatch with the D16z6 out of my EX..he has a 65 shot and run consistant 8.92 in the 8th and 13.8 in the 1/4...the other is a jetta but we havent ran it yet...but good luck in whatever you do..

 

Does anyone know if retarding the ignition timing 2 degrees for the 65 shot, takes away performance when you are off the gas? I dont understand how that works...

 

yes

 

i run BKR7E plugs with 2 degrees of timing retard, and off the gas my car is a slug..stutters, cold-natured and all that ****, but when I crack the bottle open it MORE than makes up for it...

 

I see the opinions here point to a ZEX Nitrous Kit, but I have a dry 35 shot in my 02 Civic from NX....Great company....no problems yet...just throwing that idea out too....

 

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[Modified by Nine, 2:56 PM 3/9/2003]

 

Zex The best starter nitrous kit out there. I run 75 with colder plugs and have not had a problem yet

 

ZEX Great Kit. Worth every penny. I plan on going to 100 shot as well after my bottom end build up.

 

yes when you retard the motor 2 degress it will hav less horsepower N/a

 

i have my timing 4 degrees retarded. with that and the fuel enrichment my car is a dog off the bottle. But its worth it when you run the bottle. Thats why i get pissed when people tell me to pull my bottle for a "fair" race. i think thats bullshit. i designed my car and tuned it to run ON the bottle not OFF of it. Its not cheating anymore than a turbo or supercharger. they all do the same thing. put more air into your motor and allow you to burn more fuel.

 

A 100+ shot on a dry kit is not a good idea.
For anything over a 70 shot, you should go wet. Preferably direct port.

 

Do you guys use a timing gun to retard your ignition or do you have an ignition timing controller? Will the colder spark plugs really make that much of a difference in hp if the timing isnt retarded?


[Modified by Nine, 2:57 PM 3/9/2003]

 

I always use a timing gun.

Colder spark plugs are used as a safety measure, not for an increase in hp.
Regardless, you should always use colder plugs with nitrous.

 

I didnt think it would increase hp, I thought colder plugs might decrease hp.

 

Yes, I used the stock NGK plugs, except I bought the 6 heat range, not the 5.

And another tip, Don't ever use platnum plugs with Nitrous, you won't like the results...

 

Wrong. Zex Kits can perform very well up to 125 shot. In fact the box is capable of handling up to around a 200 shot. Wet? wet single foggers suck. they puddle fuel in the intake manifold and blow up a ridiculous amount of hondas. wet direct port is a different story however. they are good because they fix the one weak point of dry foggers. even distribution between cylinders. however, with good tuning and fuel enrichment dry kits can handle 100 shot easy. in fact, zex even sells some of their dry kits with 75-125 shot jettings for the bigger motors like the LT1. The reason they don't sell the honda kits with that big of jettings is just to be on the safe side that a stock honda bottom end might not handle the extra 125 horses. i believe 100 shot would use a 43 nitrous jet and a 32 fuel jet with 310 cc injectors. call zex though dont quote me on those jet sizes.

 

i agree NX, ZEX, and venom are all great N2o companies...but ZEX is cheaper for me...

 

well the fuel i have will allow the ZEX kit to keep plenty of fuel in the motor....so im not worring about that......i know ZEX has a wet kit but the dry kit raises fuel also...im new to N2o so please help if im wrong...

 

Thanks...for the help....ive seen ZEX save a motor before...so im dead on using it over turbo or supercharger...(money, and reliability issue)......but ill have the bottom end for the big shots, and like you said wet kits can puddle up....so i plan on the dry kit....starting out with a 75 shot and moving up....how far do you think i can go??????thats about the only question i have now...

 

quote:
Wrong. Zex Kits can perform very well up to 125 shot. In fact the box is capable of handling up to around a 200 shot. Wet? wet single foggers suck. they puddle fuel in the intake manifold and blow up a ridiculous amount of hondas. wet direct port is a different story however. they are good because they fix the one weak point of dry foggers. even distribution between cylinders. however, with good tuning and fuel enrichment dry kits can handle 100 shot easy. in fact, zex even sells some of their dry kits with 75-125 shot jettings for the bigger motors like the LT1. The reason they don't sell the honda kits with that big of jettings is just to be on the safe side that a stock honda bottom end might not handle the extra 125 horses. i believe 100 shot would use a 43 nitrous jet and a 32 fuel jet with 310 cc injectors


sounds like what im doing..the zex jets go up by 10's ex 65, 75, 85 they do skip a few like it goes from 105 to 125 i think but zex sells a 32 jet the smallest... so they tell u to use a NX or any brand rather than NOS to use their jets to get the smaller #s... so i gotta reserch what size jet to use from them PS i plan on goin with a 105 on the street and 125 track

 

hey. in your opinion would a jdm b16a1 be a good motor for nitrous in my 91 hatch? id like to run about a 100 shot at the track. What all should i do to the motor so it safe?

i got the zex dry kit! got thought id help you out, or try to anyway here is the phone number to ZEX 1.888.817.1008 they are very helpfull if you need to get new jet configurations

 

It depends on the mileage/condition of your engine.. if its in good shape then you shouldn't have a problem at all.. if its getting on in years or you want to play it safe then you could build up the bottom end a little (new pistons, rods and a block guard maybe) but I really dont think that is necesarry if you make sure you are giving it enough fuel. Just make sure to retard ur ignition, get colder plugs, etc...