how many are doing this? how safe is it with a low shot and low boost on stock internals? I am deffantely going turbo but also thought of adding some nitrous to the mix, was going to run large fuel jets with the nitrous fogger system to make sure engine wasn't leaning out.
you don't need it and it's not the best idea. it'd be a swell idea if you used it at the track to help spool up your big turbo (i.e. launch on nitrous to spool the turbo quicker). I believe Skillz10179 is running a small shot on top of his turbo setup.
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Its a great idea. I've done it many times, and it works great. Its like anything else, hp is hp, spray too much, and you'll pay for it. A small shot, with your turbo works beautifully.
The cool nitrous works nicely to cool down the charge from the turbo. Just use the recomended jetting, don't get carried away with the nitrous, and you'll be fine
thanks to those who have replied.... also does anyone have 1/4 mile times with like 10 lbs boost and nitrous on a 2.2 or 2200?
Nitrous and forced induction do the same thing. Break it down.... two parts oxygen, one part nitrogen, nitrous densifies air, allowing you to burn more fuel completely. It does that in two ways. Depressurizing highly pressurized (1000+psi) moderate temperature gasses (nitrogen especially,) causes it to fall to subzero temperatures, effectively cramming more air into the cylinders. A turbocharger does the same thing by pressurizing the air before the pistons car further compress it.
The thing is, the COMPLIMENT eachother. The big problem with turbochargers is detonation caused by cylinder temperatures.
Remember, depressurizing air makes it extremely cold, pressuring air makes it HOT. That's why you have intercoolers.
With that in your head, let me give you my case. Instead of running 25psi+ to my sunbird to try and reach my target crank 400 HP, I am instead shooting for 350 HP and adding an extra 50hp shot of nitrous on top of it. Why? So I don't have to set up my system to handle the CFMs 400hp would normally require.
I think it is much safer and more reliable that way, plus nitrous has no parasitic loss like a supercharger and no lag like a turbocharger.
All in all, don't think of it as building a system and throwing nitrous on to make more (even though some do it that way.) Think of it as attempting to make your engine more reliable while you aren't pushing it.
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im runnin the gm s/c with stock pulley and im seeing 6 psi and spraying a 40 shot of dry and i went through about 4 bottles before my stock internals ( piston pins started tapping) went. so id say no bigger than 40 shot on a 2.4 anyway. new internals and head work coming soon though
Spotabee Racing wrote:I believe Skillz10179 is running a small shot on top of his turbo setup.
Nope, no nitrous on my car these days.
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I thought of using a small small shot right after my turbo to cool my charge pipes. a dry shot like 25 30 or something. The N20 will have atomized by the time it passes throught the intercooler and throttle body so all it would basically be used for is cooling the hell out of your charge air . That is the only way I would use nitrous with my turbo setup. Other than that , you simply dont need it.
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One thing you have to realize is that nitrous releases its oxygen molecules when it is heated above 580 degrees. That is why you have to add the extra fuel to it so it wont run lean on the mixture. Regular air, the kind the engine takes in only has 28% oxygen, nitrous has more when it releases it from the heat of combustion.
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dragracemyz24 wrote:I thought of using a small small shot right after my turbo to cool my charge pipes. a dry shot like 25 30 or something. The N20 will have atomized by the time it passes throught the intercooler and throttle body so all it would basically be used for is cooling the hell out of your charge air . That is the only way I would use nitrous with my turbo setup. Other than that , you simply dont need it.
It would be more effective you place the nozzle right before the throttle body.
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M I N I O N wrote:Nitrous and forced induction do the same thing. Break it down.... two parts oxygen, one part nitrogen, nitrous densifies air, allowing you to burn more fuel completely. It does that in two ways. Depressurizing highly pressurized (1000+psi) moderate temperature gasses (nitrogen especially,) causes it to fall to subzero temperatures, effectively cramming more air into the cylinders. A turbocharger does the same thing by pressurizing the air before the pistons car further compress it.
The thing is, the COMPLIMENT eachother. The big problem with turbochargers is detonation caused by cylinder temperatures.
I'd hate to be a voice of dissent, but you're a little misinformed here. Nitrous Oxide's chemical formula is N2O, meaning it is two atoms of nitrogen bonded with one oxygen atom. In other words, 2 parts nitrogen, and 1 part oxygen. You had it backwards. Also nitrogen doesn't "densify" air. What happens when you spray nitrous is this: the nitrous oxide enters the combustion chamber and upon ignition, the nitrogen and oxygen molecules separate. The oxygen now allows more fuel (supplied by the fuel jets) to be burned. Nitrogen is an element which gets highly excited by heat, which leads to increased gas expansion in the cylinder. The nitrogen itself is inert and does not actively participate in combustion, but its expansion under heat helps somewhat to push down on the piston which does result in more power.
Also, nitrous is well known for being more susceptible to detonation than boost, because it raises temperatures so quickly that if something goes wrong, often the damage is done before it can be realized and prevented. It does lower the intake temperatures but the result of the rapid and increased combustion is that internal cylinder temperatures are higher than with boost.
I'm not saying any of this to decry the use of nitrous with boost. As long as its done within the power limits of the motor in question and you use the proper precautions (correct jetting, octane level, spark plug heat range + gap, etc) then it can be done with great success. Me personally, I'd rather have something where I don't have to pay $40 a bottle to refill it. If you want to extend reliability on the street, different boost levels are just a two-stage boost controller away. Just wanted to clear up the technical details on nitrous.
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jsunfireGT2000 wrote:im runnin the gm s/c with stock pulley and im seeing 6 psi and spraying a 40 shot of dry and i went through about 4 bottles before my stock internals ( piston pins started tapping) went. so id say no bigger than 40 shot on a 2.4 anyway. new internals and head work coming soon though
Sounds like something else was the cause.....as a 40 shot should have been fine with the proper tuning and mixture. I guess 4 bottles is a lot of fun though
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da fake z24 wrote:thanks to those who have replied.... also does anyone have 1/4 mile times with like 10 lbs boost and nitrous on a 2.2 or 2200?
I ran a 14.6 @ 98 mph with a 2.5 60'.... thats a 14.3 - 14.1 trap.............. and that was at 6 psi with no 3" exhaust........... a corvette c5 is said to do a 13.3 - 13.7............... I can keep up with a c5 dead even maybe pull a little depending on the launch..........
to answer you question all though I haven't been to the track at 10.5 psi with the 3" turbo back exhaust..... but I think a good FAIR rough estimate with a good 60' a 13.7 - 13.9 @ 100mph...... roughly......
with a 2200....
Lee
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
^^^^^^^^^^ No n20 though......
......
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
