If you were to have a big turbo with alot of lag could you use a nitrous set up to a certain rpm to overcome it? i know this is possible especially with the progressive boost controllers on the market, but i’m just wondering about personal experience. Also could you position the jet on the intake to cool the compressor and intake charge, or could that cause some damage because of temperature shock? any advice would help, thanks
Ive heard of people using nitrous as a method of overcomming lag up to a certain RPM, but with today’s turbo technology and use of ball bearings instead of journal, i think that it is much more simple to find a turbo that will give you boost at a reasonably low RPM and still give you potential for huge power than to use nitrous. Second, your question about spraying the nitrous into the compressor and intake charge, this sounds just like a water injection method some people use to cool their charge. Id go with water on this one just cause its much more cost effective, but if you were to use nitrous i definitely wouldnt spray right by the turbo compressor as the quick cooling effect it would have would risk cracking the compressor housing. But you also have to be careful with water injection as too much will apparently water lock your engine. Im sure theres others on here who have more experience with this than me though.
For cooling purposes they make kits where you can spray the nitrous directly on to the intercooler core to cool it down. If by “on the intake” you mean before the turbo I could see there being some problems. Like all the piping it would have to travel through before it gets to the engine, for one.
B-Wurm 
i belive there is a kit out there for using CO2 thats in the intake that loweres the tempature. DEI or someone does that… CyroO2 is what they call it i think…
thanks guys, well i know about intercooler spray bars which work well, but in a magazine i remeber they did it with water too, and when they compaired both their home made dual water squiter it worked better then the nitrous and cost them like 50$ to make. By nitrous cooling in the intake i meant for quicker revs, to spool the turbo, and the cooling effect would be a bonus. Modified did an article on AMS’ water injection and they went from 384ft-lbs @ 25 on 93 octane to 422 @ 29 on 93. Thats a substantial jump. The only problem is i cant find the AMS web site, and the only place for sale i’ve seen them for is evos and they retail like 650$. This could be justified with a wet nitrous set up, but the pros and cons somewhat balance themselves. Waters free… but nitrous gives you better performance. Nitrous can potentially kill your engine if your not careful… but water contaminates O2 sensors and can cause rust… its a toss up, let me know what you think.
Nitrous only kills if a few things happen:
A) engine cant handle it (old, crappy conditions)
B) showing off (you cranked that little knob a bit too much…)
Water cooling sounds dangerous:
A) Sensors and water dont mix to well…
B) Water and intakes dont mix at all…
Cooling is important… have you looked at the Nitrous Express (NX) Kits for intercooler spray bars? I just remebered seeing on their S15 Silver Bullet might wanna toss an email to them about the subject, generally companies like to help…
ya, i guess that it would be a good idea. Now reaslistically though, I think the water injection could help, as long as its in the middle of the MAF and the turbo. If you switched to MAP then there might be a problem, but i think it would be fine. Now I have been dreaming up a fully built sr20 that could push 500. i know its alot, but i think that it would be sweet. With a 500 hp dream though you need some serious planning… and cooling, hence the thread.
water injection and nitrous are both good tools for making more power, independently of course. Aquamist still makes a good pump for water injection. Staged nitrous systems can be great for the strip. Spoolup nos is also good.