Well guys i have a ZEX dry system in my car right now with 55 shot...runs very well! But i can get my hands on a wet kit for a VERY good price! what you guys think? do you think i would benefit more out of the wet kit? or would i do more wear on the motor with the wet kit? any info about this would be great

dry system-55-75 shot
wet system-75-125 shot

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Dave's Hocus Pocus Tuning of South Dakota

Question is what do you want from your car, and can the nitrous help achieve this?

Me, dry kit on my car, usually run between a 55 to 60 shot, and mainly use it for a intake cooler not a power adder, but the side effect takes it to be a power adder, which I'm fine with. I don't rely on my nitrous to get me power, I have only really used it on those hot humid days more than anything in the past. Got to love Kansas, with 99% humidity 101% of the time.

~F~

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i want to run nitrous BUT running it SAFE and not worry about my motor going south at this time...I want to see 12's but im pretty much done after the ported LIM, case and SSIC....BUT im gettings ported heads in the spring for it...and the nitrous is a good power adder for the money (yes its cheating) but who doesnt?

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Dave's Hocus Pocus Tuning of South Dakota

12s? Nitrous alone won't get you there. You need a cam and some other stuff first. Maybe a turbo...?

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2012 Ford Focus SE Sport
2012 MINI Cooper Clubman

I have ADHD and drive a Focus. Ironically.
Although gold dust is precious, when it gets in your eyes, it obstructs your vision.

get a wet kit. what fuel pump does it come with or does it use the stock and tap in off the fuel rail?


wet=best IMO, dry always runs the greater risk of being too lean and thats when you go boom.

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N.R.A Life Member.

With the 04+ you can't run a dry system because the fuel pressure regulator is in the gas tank, fyi.

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2005 Grand Prix GTP CompG
[url=http://www.cardomain.com/ride/2457141]Check out my ride[/url]

So your saying with my mods plus Ported lim, case, SSIC and 75 shot of nitrous i wont hit 12's?

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Dave's Hocus Pocus Tuning of South Dakota

I don't think you'll quite hit 12s.

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2012 Ford Focus SE Sport
2012 MINI Cooper Clubman

I have ADHD and drive a Focus. Ironically.
Although gold dust is precious, when it gets in your eyes, it obstructs your vision.

I hope anyone who is running a system, wet OR dry has a dedicated FPR and pump.

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N.R.A Life Member.

Glanzer, under your sig is a 14sec et, is that what you're running now?

If you want 12's on the bottle, you're gonna need a big hit. Probably way more then the stock bottom end will handle. If you go this route, run a wet kit. WhiteDevil said it about those dry kits tendency to go lean, I've seen this. Anyone I know that runs the bottle, all have wet kits.

Remember that you not only need an increase in fuel pressure, anything over a 125 shot and you're gonna need to pull roughly 2* of timing per 50hp increase of nitrous.

now that was with a plog and dp and 3.5

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Dave's Hocus Pocus Tuning of South Dakota

save your dough and do what GTP_ON_YOU did to his car basically. He's running 12.3.

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2012 Ford Focus SE Sport
2012 MINI Cooper Clubman

I have ADHD and drive a Focus. Ironically.
Although gold dust is precious, when it gets in your eyes, it obstructs your vision.

You should build up the motor more like Longone suggested. Whether you want to stick with the blower or go turbo is up to you.

Cam and head work, you can't go wrong.

Personally whenever I had a engine on spray I made sure the bottom end was capable of handing the increase in pressure and friction, not to mention sheer strength.


If you are trying to put more air/fuel into the motor, make sure the intake/exhaust aspect of it is increased and improved as well, this is if you want it done right. Heads,cam,intake and exhaust is a must, pull some timing out (MSD boost control spark boxes are great).

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N.R.A Life Member.

You don't need a dedicated pump unless your running something like a 200 shot with direct port nitrous, lol.

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2005 Grand Prix GTP CompG
[url=http://www.cardomain.com/ride/2457141]Check out my ride[/url]

Thats the only spray help I can give is own personal experience. I only ran spray on built motors and 200 was the smallest jets Ive ran.

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N.R.A Life Member.

Well anyone running a 200 shot on these motors is a little cookoo in my opinion, lol.

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2005 Grand Prix GTP CompG
[url=http://www.cardomain.com/ride/2457141]Check out my ride[/url]

My car ran 13's easy...then 12's on a bad tune...and will probably now dip into the 11's this year now that we have the tune figured out (performance enrichment tables giving my '97 a hard time) Thats all motor, no nitrous. Of course mine is built from a bare block for strength, and I built it to run around nitrous. (running INTENSE's stage 3 nitrous blower cam and stage 3 heads) My goal is mid to low 11's on the motor, then I will run the nitrous again.

I have a Casper's hot wire kit for the fuel pump, and I am still running the stock pump that has always been in my car. I have never had to change my pump ever, only the gauge sending unit about three times.

On days that we were at the track years ago, and no Grand Prix could make triple digits in the 1/4 mile or even break a low 14 second pass, I ran the bottle for a pass, and ran a 13.7 @ 101. That was a 60 shot, on a hot ass day, on a VERY lightly modified engine. (pulley intake PCM). That whooped a car that was running a XP cam and was on a tune. My car was never tuned, the PCM was an off the shelf DHP.

If and when running nitrous, important to have a fuel pressure gauge in view (pillar pod) if your pump cant keep up with the engine, the gauge will show this by either the needle jumping around, or going up in pressure as you get on it, and then bouncing from pressure spikes and loss.

Wet or dry, they both work well. Your choice.

Wet is safe sure, but so is dry. The kits will all usually have a FUEL PRESSURE SAFETY SWITCH in the system you plumb to your fuel rail. The pressure drops, it kills the power to the solenoids and does not allow them to open, making the nitrous flow. Making your engine safe to use it, and worse case your in the middle of the run and your fuel pump goes belly up...it will save your engine, with hopes.

Zex kits are pretty idiot proof to hook up wrong. Everything you could mess up is inside the box. Other kits like a NOS Nitrous kit...takes some electrical and plumbing skills to hook one up correctly. I was a novice when I did mine, so I took it one step at a time when I installed my kit. Worked fine straight out of the box...except I forgot to gap down my plugs.

Our engines, stock CAN take a 75 shot easy with no worries. Tuned or not.

Tuned is always better, but I would still keep it below a 75 shot with a stock engine. Our engines are built stock for emissions standards, not for racing. Adding a big shot...is like pissing into the wind really. Unless you go in and change your ring gap...regardless of what cam or mods you have, I would keep it at or below a 75 shot.

Break it down...

50 shot you cant feel a damn thing, don't even waste your nitrous with this small of a shot.
55 shot, you can kinda tell, just a little, not much. You really have to be feeling for it.
60 shot you can feel it in the butt dyno
65 shot you can for sure tell it in the butt dyno
70 and 75 again, you can feel it in your butt, as your car will pull harder if everything is working in harmony.

~F~

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