Hey guys, I've been thinking about putting a 50-shot NOS on my S, but here to get your opinions first. My car is mostly stock except with Comptech air system and iridium plugs. Well, you think the engine will be okay if used with 50-shot once in a while? 50-shot is the lowest and won't put as much stress on the engine as more powerful systems. I've read on here that some owners who improperly used 100-shot and blew the engine. Well, 50 is all I need for an extra kick once in a while. Please state your opionions. Thnx!

 

Don't do it. If you want more power go with a complete turbo system that includes increased fuel flow and engine management. Then add the 50 shot.

The key here with adding any kind of air density mod is fuel ratios. They have to be maintaned by a computer system.

You could always go with a 200 shot with the correct fuel upgrades and engine management though...

The power of Fuel Injection was realized and brought out in the USA by Grand National owners. Any that are still running have complete engine management.

 

gabedude, correct me if im wrong...dont some systems, like the Venom come fully computer controlled, so there is very little if no chance of messing anything up? From what i have heard, it automatically adjusts the amt of nitrous going to the motor based on a number of variables that it calculates so each time it only gives enough juice to be safe for the motor.....

 

do it. there ain't nothing wrong with nitrous. it's just ignorance leads to engine failures. nitrous when teamed with the right mods is perfectly reliable. don't buy into those computer cotrolled gimicks to take etxra money from you. theyre bogus. you only need, jets, a box of spark plugs and patience to tune a great nitrous system. a 50hp kits is well within the limits of the f20c.
oh and almost every car i've owned (over 20 cars now), starting from a rx7 twintubro, to a nsx have all been on the juice.

 

So, DigitalJ,
Have you setup your S2K with NOS? How much (50, 75)? What are your impressions?

 

i will be intsalling a direct port nos kit as soon as my turbo kit and stroker motor is finsihed. a buddy of mine had a '95 integra gsr which he installed a 75 hp directport nos on a completly stock motor. 90k miles later its still in prime condition, leakdown test after leak down test, perfect. he squeezes regularly (almost everyweek). honestly on a f20c i don't see what the problem with be. i have a short block sitting in my garage and its on par with teh b18. the head definatly has a better quench area then the b18. nothing gives you the most for your money IMO. the usual mistake people make with nitrous is they make the wrong mods to go along with the nitrous. make sure you install a inline pump, (NOS one works fine) regulator, ignition(preferably w/ timing retard) and colder plugs. head to the track with a box of spark plugs. jet rich and make runs. after each run pull your plugs, check for any fouling, progressivly get leaner untill you see the ideal mixture.

 

I ran a 50-shot ZEX system for a year and had no problems. Daily driver (2500 mi/mo), but I did verify the mixture was OK by doing some test runs and checking the plugs. The ZEX system, and I assume the other "dry" systems use a pressure bleed-off from the nitrous line to boost fuel pressure when nitrous is engaged, that is how they get extra fuel into the engine to maintain air/fuel ratios. This is a valid method, as long as you are not trying to get more than about 50 HP from it, since there's a limit to how much fuel the stock fuel pump will provide.

And you MUST make sure the vacuum lines are on tight! Vacuum lines frequently do not need clamps because the vacuum keeps them attached. I made the mistake of not using a clamp on the line going to the fuel pressure regulator. The pressure from the nitrous bleed-off blew off the vacuum line off, which lowered the fuel pressure, leaning out the mixture. I noticed the rough running instantly and shut it down. No engine damage but it toasted a set of plugs in a few seconds.

And if you're interested, my old ZEX system is for sale, since I moved up to a Comptech SC. Comes with LOTS of extra stuff, and I was just getting ready to put it on ebay in the next day or two. PM or email me and I'll make you a deal.

And, as an additional shameful product plug, my Redline shift indicator has an extra output designed to limit nitrous engagement to a user-set rpm window. You might consider that too.

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Thanks, guys! I have decided to go with a 50-shot system afterall, but haven't yet decided on which system (brand). I have always been afraid of N20 because of detonation of engine and possibly the whole car including myself in it. But after having done some research, I'm much more confident. So I'm going for a dry 50-shot setup. The f20c should be able to handle it, right?

Yeah, I don't think Gabedude knows too much about nitrous oxide systems these days. Most N20 systems today come with a built-in fuel management that electronically mixes fuel with nitrous oxide and sends it to the combustion. Fuel Injection was discovered way way before the Grand National cars even came out. So I don't think GN owners had anything to do with it.

In a few days, I'll be asking the professional installers for more info on how to use it properly, then have it installed.

Modifry, what kind of performance improvement did you get with a 50-shot spray? Please tell me. I think 50-shot is all I need for now, until I decide if I should go with forced induction or not. Thanks a lot!

 

go with the venom kit yellafever....its the best on the market from what i have heard....the other really good one is the ZEX kit...also very reliable, and both are computer controlled!

 

Do your homework.......I've had nothing but good times with my Nx express.......It really helps to be handy with these Nitrous kits....its not an install and forget.....Takes alot of plug checking and swapping.....Ya might want to upgrade some of the cheese
switches and accesories.