doing some looking around my engine bay and found what looks to be a hole drilled in the inlet pipe for nitrous oxide :( wasnt too happy to find that. Does the focus engine stand up well to this? Do they have forged pistons or hypers?

Ive been runnning nitrous for a while and I dont see anything hugely wrong so far.

Done correctly it is not a problem at all. Sounds like it was a wet system (if I am reading you correctly) which is even safer.

i haven't had any problems with my no2, and i've had it on my car for around a year.


is the hole still in your intake tube? or is it plugged?

I melted a one step colder plug and when the prong came off and tried to go out a exhaust valve it hit the valve and chipped it on a 50hp wet shot. I dont think it was the nitrous's fault but if you look at my sig and see 98% of my mods are a result of this happening. I think the problem could be in the fuel injector harness that had a bad connection that caused the number 4 cylinder to quit giving gas into the cylinder and run lean. This type of stuff can happen tho but its fairly safe to do...............( at least thats what everyone says )



Brandon[rolleyes]

Mine is fine as well. As above, that hole is plugged , right?

Oh yeah definatly plugged... Dont want unmetered air (vacumme leak) going in. So they do have forged pistons?

No forged internals, but they will hold up really well to a decent sized hit of nitrous. I wouldn't sweat it, really. I might change out the spark plugs when you get a chance. Nitrous is kinda hard on plugs.

True back when I ran nitrous that was a big issue until I changes to higher capacity plugs.

Colder plugs? That will help a bit with preventing Det.

hey viney266,

if i use a #24 fuel jet for a 75 shot when it calls for a smaller #22. will that help the safteyness?or will more fuel than stated be bad?

thank you

p.s sorry not tryin to steal this thread

Originally posted by viney266
No forged internals, but they will hold up really well to a decent sized hit of nitrous. I wouldn't sweat it, really. I might change out the spark plugs when you get a chance. Nitrous is kinda hard on plugs.

when i talked to somebody at NX, they told me i shouldn't have to change the plugs unless i go over a 50 shot

what would happen if you didnt change the plugs? I know I never did and Im runnin an 80 shot.

If you are using the stock platinum's you should probably swap them out. I have used many bottles of nitrous on my SVT and a 02 Civic SI and if I'm not mistaken the nitrous can melt the platinum completely off the plugs, causing other problems obviously. With an 80 shot you should be running at least two stages colder. You can seriously detonate with stock heat range. Also, what is your spark plug gap??? You should be between .030-.035 for spray. You can get the motorcraft coppers for less than 10 bucks for a set of 4. Or step up to the Denso's and pay 45 for the set. Just make sure if you run the Denso's that you take them out when you aren't spraying. The colder heat range plugs will burn out quickly and at 45 bucks a set that can get expensive.