Whats the cheapest way to do a dry type nitrous set up? Looking to add about 40-50hp to a small (2.0L) engine. Don't really have the means for proper ignition/fuel control, just trying to "spray and pray".
Whats the cheapest way to do a dry type nitrous set up? Looking to add about 40-50hp to a small (2.0L) engine. Don't really have the means for proper ignition/fuel control, just trying to "spray and pray".
Zex kits are pretty easy and safe.
Solenoid, nozzle, push button, bottle. I have a dry nozzle around here somewhere and maybe a solenoid
How do you judge nozzle/jet size?
In reply to Gearheadotaku (Forum Supporter) :
There's a ton of calculators out there, it's based on nitrous pressure
ETA: Please make sure you get video
I wouldn't go dry on a budget, I'd get a fogger nozzle
Nitrous express has good jetting charts online. I printed the ones applicable to me out and keep them in the bag with my jet kit
In reply to Gearheadotaku (Forum Supporter) :
What are you doing with a 2 liter engine? This isn't like you.
Saw something on CL and my mind started going to odd Challenging places....
My son and I want to put nitrous in my daughters honda fit. As a little girl she asked if we could, "have a car that doesn't smell like cigarette smoke and have wires hanging down." She would always why we would modify cars only to make them more difficult to run, or work on. She has been awesome with her fit, helps with all the repairs and is thrilled we bought if for so little. So my son and I have been looking for the cheapest nitrous, put it in the car, with a button that says, "never use". My wife says my daughter would be furious, but not fast and furious.
In reply to thedoc :
I see what you did there 
Lucky for me the CL find got away. Probably for the best. $600 1998 Honda Prelude....
Doesn't mean I wont find some other thing to apply this to....
I'm on the lookout currently for a budget nitrous setup.
Go wet for sure though. Needs one more solenoid and a bit more lines and wiring, but much safer I think.
The motorcycle kits I'm seeing that are dry kits aim the nitrous at the intake air temp sensor, which probably cools the sensor considerably and tricks the computer into using more fuel. But I'd really hate to depend on that.
I put nitrous on an old Hyundai Elantra i daily drove just for the fun of it. Car would roast the tires into 4th gear and even from a roll. Absolutely addictive.
I removed the fuel damper from the fuel rail and found a BPT fitting that worked. I believe i used this Nitrous Express wet solenoid kit. Hooked up a WOT switch to a button which i mounted to the shift lever. Dry nitrous on it might have worked for a 25hp jetting but i wanted more than that and to be extra safe. Ran 93 octane and ensured that it was jetted per the manufacturer's recommendations(didnt have the money for a wideband). Definitely try to find a way to get fuel from the fuel rail or incoming line before settling on a dry shot.
https://www.nitrousexpress.com/proton-plus-series-nitrous-system-w-10lb-bottle-20421.asp
Jetted it for 75hp per the booklet and the car was a total blast. Went through two clutches though so backed the jets down to a 50hp shot. Ran it like that on a stock clutch for another 2 years before i removed the kit and sold the car.
Dry single can be tricky to setup on EFI. It's hard to get the fuel to match a specific nitrous jet, it's almost easier to just start with a small jet and then jet up the nitrous until the afr looks good by gauge or reading the plugs. Usually this ends up in the 50-75 range but is very application specific (regulator and fuel pump matters). If your intake manifold can flow fuel decently, a single wet is easier to adjust the nitrous and fuel get where you really want to be.
Also, I've spent a lot of time reading this guy recently:
In reply to Robbie (Forum Supporter) :
That's the resource I used to build my system, probably 20 years ago
Peabody said:In reply to Robbie (Forum Supporter) :
That's the resource I used to build my system, probably 20 years ago
Cool! Did you find a nitrous solenoid or did you modify an industrial one like he does? Anymore, it seems like finding a used nitrous solenoid might be the ticket since the difference in cost is no longer so big. Also, I feel like if you are going drag racing with it, tech might be a problem if you aren't running a brand name solenoid.
I was going to use the industrial stuff because I had good pricing through work but in the end found used NOS solenoids really cheap. I then pieced the rest of the system together with odds and ends.
You're not wrong about tech. I used 5 and 15lb bottles from the local fire extinguisher guy, made my own valve adapter fittings, to use JIC and a few bucks worth of nylon poly tube instead of the $$ braided hose that comes in the typical kits. I eventually put a NX sticker on my tank, and bought a braided hose. Even though my stuff was better quality, higher rated than the kits, and satisfied the rules, most tech guys don't understand the tech and if they didn't see what they expected to see I got a hard time or DQ'd
Great tips, thank you. One of my concerns was having to build a separate fuel system to go wet. But if I can just tap the existing at the line or rail that's much easier. (Didn't think a stock fuel pump would keep up with that)
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