I am pretty ignorant about cars, but I had a thought running through my head.
Has anybody tried misting NOX at some point in a air intake instead of using modified fuel injectors? Is there something on the market already, or would it even work?
I mention it, because in addition to giving some boost in HP because of the extra oxygen, it should cool the air intake quite a lot also.
I don't have a sports car or would be able to even try it, but the thought came to me when I was thinking about it actually being done on gas turbine engines.
You also need a corosponding increase in Fuel. In the late 70s (last time I played with race cars) you not only had to inject NOS into the manafold but Gas as well, or the engine went super lean and blew up.
I also think more then mist is needed to produce a HP increase, but I"m really old when it comes to cars nowadays.
There are two types of NOx systems being used, wet and dry. In a dry system, just NOx is fed into the intake like you mentioned. The computer-controlled fuel injectors see an increase in the A?F ratio and compensate by adding more fuel automatically. In a wet system, NOx and fuel are added together. Wet systems are preferred because you can get higher boosts and there is less risk of burning your pistons due to a leaning out condition. Dry systems are less complicated and cheaper to set up, so they are prety good sellers. I have a wet system set up on mine. It feeds NOx and Fuel through dual nozzles under the intake manifold. All lines are under the manifold, out of sight....very stealthy. Also very impractical. In order to change nozzles to increase or decrease the power addition, you have to pull off the intake manifold. Since mine hasn't ever been used (previous owner set up the lines, bottle, high volume fuel pump and nozzles but not the solenoids, wiring, switches, delay, etc.), I'm probably going to remove the modified intake and go back to a naturally aspired set up. I'll set up the solenoids so that I can still purge the lines on demand. There's nothing cooler than seeing dual blasts of NOx shooting out from near both windshield wipers like a bull snorting. >;-) If I decide to try NOx in the future, I'll go with an external wet system with nozzles and jets up top for ease of changing.
Mark Simpson NAR 71503 Level II God Bless our peacekeepers
Sorry Mike, but, as a chemist for 25 years, NOx is a perfectly acceptable shorthand notation for combinations of N and O. Agreed, it has been used primarily when talking about the combustion products NO and NO2. Now, as a BADR (born again drag racer), many people call it "noss" because of the Holley's brand name NOS. Now, it you want the ricer version, you have to add a southern drawl to it and say "nawz". (find a video entitled "ricer BS Week 1" and you'll see why. ;-)
Mark Simpson NAR 71503 Level II God Bless our peacekeepers
The STI rocks! I paid 35K for mine, but I got it in May. Back then a deal was a pipe dream. Now they are significantly cheaper due to kids who reserved them not being able to pony up, they're easy to find, and some dealers will give a serious discount. 3260 Lbs, 300 HP and 300 lb-ft with a
6 speed and two limited slip diffs, 0 - 57 in a shade over 4 seconds, but ya gotta shift to 3rd to get to 60, so it comes at about 4.5 seconds. I only took mine to the drags once, first time ever for me on any track. I blundered my way to a 13.4. Somebody who knows what he's doing could do
12.75 stock... and the car's not meant to be a drag racer.
..and the real bonus is that it's a badass in the rain. The car kicks serious 2WD ass in the wet. It's not just a "real car", it's an all weather interceptor. :-) :-)
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-------------- Hello....... Is this thing on ? Remove clothing before replying.
Sean, my son, ran the above 1/4. Both of us didn't launch off of the transbrake because we were afraid of breaking the 10-bolt rear, so the
60' times are higher than they should be. We also hit the rev limiter before crossing the finish line, so we lost a bit there. With a 3.42 or
3.73 bulletproof rear, we figure it'll go high 10's to low 11's without nitrous and 9's with. With a nice set of slicks, launching from the transbrake, I figure we can get the front wheels up a foot or so on the launch without having to use the bottle. That'll be fun!
Mark Simpson NAR 71503 Level II God Bless our peacekeepers
As Mark already pointed out, and from what I have known for a while, NOX is more like a general term for any sort of oxide of nitrogen. No confusion, I have seen nitrous oxide referred to as NOX when reading about biprops in addition to hybrids. Like I said, as long as I have been into rocketry I have seen the term NOX used.
OK :-)
BTW, I wonder. Would it be more efficient for acceleration to do the conventional injection of NOX into the engine, or use biprop rocket motor of NOX and gasoline with about the same mass flow rates?
The other reason why I would take on of these over just about any american car on the market. If I were to ever get a car like a WRX or a EVO, it would be to race on a road course, not a drag strip. Either of the two would be able to out handle most other cars period, whether it be a riced civic or a mustang.
Damn impressive Mark! Hell the best I've ever done(and the last I might add) was a mid 13 with my old '68 'stang.
Hopefully my bud will have his Olds ready for next spring. Sucker has a good 480-490 whp. He *promised* me a shot at the quarter in his ride. Starting to wonder if I have balls to actually try it :( I mean he has a cage and all but now he started mumbling the other day about nitrous. Must be something in the air.
Nice motor! The last motor I built was a small block. I took a 289 4-bolt main block (bored way out) out of a 1969(?) school bus and put a large journal forged
350 crank in it. After decking the block and the Keith Black heads, throwing in domed pistons and Al rods, I got a 12.5:1 beast that had TONS of torque and could easily rev to 11,000 rpm. (I shifted at 9,800 where the torque dropped off.:-) I also had a big cam and roller everything. The aspiration was done via a low rise duel quad intake with a modified NOS Cheater 2 system. The tranny was a Turbo 475 (yes 475) out of an old GM Step Van, modified with a manual valve body and a 5,000 stall converter. (I put a short pig on it from a T350)
Get this, I put the whole assembly in a 1972 Corvette with a custom 4:56 rear end! Talk about neck snapping! She dyno'd at 720 hp with the nitrous going. I did shear the wheel bolts once, twisted an axel and cracked the windshield from the body twisting.
I had more fun than should be allowed. I used to race on Vandyke/6 mile, behind City Airport, and the 94 service drive in Detroit.
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