Running the T04S on my SR20 is going to be a bit laggy... general conscencus is that on a stock engine I should see full boost at around 4700'ish and I'd like to see it a bit sooner without actually having the sell the turbo. I'm not really looking to break the motor open to install cam and I can get a nitrous kit for cheaper.

Is running nitrous to speed up my spool a good or bad idea? I've seen setups where it's plumbed into the intake on the turbo to speed up the turbo, and some where it was plumbed in on the coldside of the intercooler piping. Will it damage the turbine blades to spray a let's say.... 35 shot into the intake for the turbo or should I spray it in the cold side i/c piping. Or is this a bad idea all together and I should just deal with the lag?

TIA

 

From my understanding, the nitrous is not going to help your turbo boost faster, it is going to cause your engine to rev to 4700 faster. Thus, boosting faster.

Your not going to speed a jet engine up by going over and blowing on the blades. So I don't see the point of attaching it to the intake of the turbo. Now your going to expereice "nitrous lag" as the nitrous flow has to travel through all your piping till it goes into the intake. (granted maybe only .5 seconds, but lag none the less)

I have never seem any good things happen with nitrous.
You could always go twin turbo and rig up a smaller turbo to spool the bigger turbo.

 

I have no clue what you are talking about. do you?

 

nitrous wont spool your turbo fatser. Itll just make your engine rev up faster THUS spooling your turbo faster.

Tuning for nitrous + turbo is probably tricky.

I wouldn't attempt nitrous + turbo unless you've had experience with nitrous or unless you have a professional do it.

full boost by 4700 seems fine on a mid-range sized turbo

 

Bigger/open dp.

 

spool shots work great; if you keep it sane like a 50 shot and make sure it only fires between say 2500 rpm and 5 psi of boost (the point right before the turbo takes off) and only at WOT. IF you dont go over that 50 shot you wont have to worry about pulling timing; just make sure your not super-advanced during the time you're spraying. Definately run a wet shot unless you use an EMS that can handle nitrous (fuel/ign retard) and possibly one of those MSD step retard boxes.

I will be running one on my built low compression d16z6; the turbo already spools at around 4500ish which is fine since you wont fall out of the power band during shifts but it could still use some extra on the takeoff. I'll probably run it as a 50 wet shot and have crome take care of turning it on and off; maybe in the future if they get the fuel/spark worked out i'll run a dry shot instead so it will be less likely to backfire.

 

I have to disagree I said it before and I'll say it again NOS+turbo=instaspool

 

wouldn't spraying before the compressor multiply the shot of nitrous since the turbo would be compressing air that contains more oxygen than ambient air? Since nitrous contains more oxygen per volume than ambient air, and you're compressing that same volume of air whether it has nitrous or not, the compressed oxygen-rich nitrous charge should contain a lot more oxygen than ambient air compressed to the same pressure?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">wouldn't spraying before the compressor multiply the shot of nitrous since the turbo would be compressing air that contains more oxygen than ambient air? Since nitrous contains more oxygen per volume than ambient air, and you're compressing that same volume of air whether it has nitrous or not, the compressed oxygen-rich nitrous charge should contain a lot more oxygen than ambient air compressed to the same pressure?</TD></TR></TABLE>

im pretty sure that will ruin everything

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sick00SiCoupe &raquo;</TD></TR><TR><TD CLASS="quote">Bigger/open dp.</TD></TR></TABLE>

3 inch to 4 inch downpipe fixing to go on the car, and I am also running open downpipe so hopefully that can help me some.

Thanks for all the help guys.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">wouldn't spraying before the compressor multiply the shot of nitrous since the turbo would be compressing air that contains more oxygen than ambient air? Since nitrous contains more oxygen per volume than ambient air, and you're compressing that same volume of air whether it has nitrous or not, the compressed oxygen-rich nitrous charge should contain a lot more oxygen than ambient air compressed to the same pressure?</TD></TR></TABLE>

no this will actually ruin your turbo and completely dissipate the nitrous by the time it hit the engine.

i use a nitrous kit on my car and love it with the turbo, it really makes your car totally come to life. i have using nitrous for over 11 years on hondas, so i do have my ups and down.

as far as a 50 shot.........HMMM thats a little high seeing that the jetted shot almost doubles on a forced induction car, for example a 40 shot on my car netted me 73hp@ the wheels. SO START WITH A 25 SHOT

 

it will spool faster with nitrous because nitrous expands more during combustion and just air and fuel so, it will spool a turbo faster not just rev the engine faster making the turbo spool

 

The people that said it wont spool the turbo faster have no idea what they're talking about. Ambient air is 23.6% oxygen by volume and nitrous is 36%!! You're injecting a shitload more air=bigger boom=faster turbo spool. Not only that, when nitrous is introduced into the air its chemically changing from gas to liquid and when it does so, it absorbs a **** ton of heat in the process thus freezing the intake charge and making a more dense oxygen-filled atomosphere. Most decent sized nitrous shots virtually eliminate turbo lag! It's only a good idea if you have proper tuning like all the people above have said. I would limit the shot to 35 tho.........dont' worry, you'll love it!
Ryan

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">wouldn't spraying before the compressor multiply the shot of nitrous since the turbo would be compressing air that contains more oxygen than ambient air? Since nitrous contains more oxygen per volume than ambient air, and you're compressing that same volume of air whether it has nitrous or not, the compressed oxygen-rich nitrous charge should contain a lot more oxygen than ambient air compressed to the same pressure?</TD></TR></TABLE>

if you spray super cooled liquid nitrous onto a hot aluminum compressor wheel it could shatter

plus you'd loose all the phase change cooling effect that nitrous has. for the most efficient turbo and nitrous setup you want to spray as far from the tb as possible but after the intercooler. problem with that is lag so around 12" from the TB should work; i'm running mine about there

 

Right from the install manuals of NOS. 6" from the throttle body for a wet/dry kit nozzle. The Dry type of intake manifolds our cars use will have a chance of having the fuel seperate from the mixture and leave you with a lean condition(they are not designed to tumble the air and fuel to keep them combined like carb'd motors). The only safe way to do it is with a direct port setup. Anything else and your risking engine damage due to improper fuel/air mixtures. NEVER SPRAY ICE COLD ANYTHING ON SOMETHING EXTREMLY HOT. You will fatigue the material that you are spraying against and usually cause it to crack if not shatter. Remember, you are spraying a preset amount of nitrous into the engine. You are only going to get that METERED amount of oxygen and nitrogen from that mixture when it seperates. That is how you tune with nitrous - jetting.

 

Besides seperate tuning for the turbo setup and then say a seperate nitrous control like a zex kit or something, who's using management to control the whole thing on a street car and how does all that work? Are you able to turn the nitrous on and off at any given time and the nitrous "tune" of the ecu is a non issue?

Never really heard about how some of these are set up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stealthmode62 &raquo;</TD></TR><TR><TD CLASS="quote"> Besides seperate tuning for the turbo setup and then say a seperate nitrous control like a zex kit or something, who's using management to control the whole thing on a street car and how does all that work? Are you able to turn the nitrous on and off at any given time and the nitrous "tune" of the ecu is a non issue?

Never really heard about how some of these are set up. </TD></TR></TABLE>

I know if you run an AEM EMS you can have nitrous fuel and ignition trims; I'd assume Motec, Autronic etc can do the same. I'm not sure about systems based off of stock ECUs though (Hondata, Neptune, Crome, etc), though I think with Neptune you can have secondary nitrous maps instead of using them for race gas or whatever.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daveG &raquo;</TD></TR><TR><TD CLASS="quote">

I know if you run an AEM EMS you can have nitrous fuel and ignition trims; I'd assume Motec, Autronic etc can do the same. I'm not sure about systems based off of stock ECUs though (Hondata, Neptune, Crome, etc), though I think with Neptune you can have secondary nitrous maps instead of using them for race gas or whatever.</TD></TR></TABLE>

we are about to be doing it right now, its very simple with hondata, you of course use relays but you can use the AC switch to arm it, then in hondata you have a totally seperate screen for nitrous, with fuel corrections, and timing retard, along with MPH activation/DE-activation, load, tps% and so on.

 

You could just get a smaller exhaust housing for the turbo and leave the compressor housine the same.Also a manifold the directs the exhaust gases STRAIGHT not from different angles will help spool faster by up to 1000rpm of more.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chargedek &raquo;</TD></TR><TR><TD CLASS="quote">You could just get a smaller exhaust housing for the turbo and leave the compressor housine the same.Also a manifold the directs the exhaust gases STRAIGHT not from different angles will help spool faster by up to 1000rpm of more.</TD></TR></TABLE>

I'm running a log manifold on the setup, I don't know if it can get any straighter than that! Hopefully we're going to see 400 to the wheels on the stock engine at around 18-20 psi, but I guess there's no reason to be guessing until the time comes.

I'm going to try the 35 shot onto the cold side piping and hopefully that will make my power come on sooner and I can get a bit of a jump on the competition

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Teglove2 &raquo;</TD></TR><TR><TD CLASS="quote"> when nitrous is introduced into the air its chemically changing from gas to liquid and when it does so, it absorbs a **** ton of heat in the process thus freezing the intake charge and making a more dense oxygen-filled atomosphere. !
Ryan</TD></TR></TABLE>



Exactly it significantly lowers charge temps.