NOS question...

[Demon-Xanth]

I wonder if I can use a CO2 injection system on my CPU fan to get some extra OC out of it...

 

[slikmunks]

Originally posted by: DrPizza
someone mentioned that you have 15 gallons of gas... I'd rather point out that liquid gas doesn't burn, but rather the vapor burns. If you submerged a sparkplug in the center of a gallon of gas, unless there was a spark where there was vapor, there wouldn't be any ignition. That being said, what needs to be compared is the volume of gas fumes with the potential volume of N2O that would be released if a bottle were to somehow rupture... and you would have to consider that N2O itself isn't flammable, but acts as an accelerant to anything that *is* flammable, such as the aforementioned gas fumes... Of course, if the gas tank is ruptured, the volume of explosive gasses increases.

i think the problem with submerging a sparkplug in the center of a gallon of gas is not so much that liquid fuel doesn't ignite (which btw, it does ignite and burn), the problem is that there's no oxygen, which you need for combustion. you need something flammable + oxygen to create fire/ignition/boom.

 

[slikmunks]

Originally posted by: Jeff7181

Originally posted by: slikmunks
Jeff, as for your friend... he might want to check on some of the rx7 forums see if anyone can help him diagnose something else that's wrong, b/c 6 rebuilds in 3 years in his car is nuts unless he's a pro-dragger or something

I agree it's not normal... I think he's been using poly-graphite seals... or somethin like that. Maybe that's the reason... I know he's not using the stock replacement seals cause he's convinced they're junk.

i've read really good thing about ceramic 3piece seals (i think that's what they were), but damn, i'm still like wtf at 6 rebuilds in 3 years...

 

[Howard]

Originally posted by: Pacfanweb

Originally posted by: kevinthenerd

Originally posted by: trez2k3
So im talking to a friend and we get on the subject of cars and he says that NOS will make the RPM's in your engine go to 40k briefly....... Im like what? wouldn't that destroy your transmission?? I don't know maybe I'm wrong but that just doesn't dound right.

utter bullsh!t, plain and simple...

...unless you're in neutral with a custom chip, fully-balanced engine, and an extra engine in your garage to replace the one you just broke.

(there's another broken car thread tonight... shifting from 5th to 2nd. See those pictures? That'll be your car. I estimate those RPM's to be at least on the order of 25000 rpm.)

Not even close. No car can take 25000 or 40000 rpms, not even for a second. Shifting from 5th to 2nd wouldn't cause that big a jump, anyway.
BTW, your friend is an idiot, like someone else said. N2O will make your rpm's jump because the engine suddenly has more power and will therefore turn up faster. That's the only reason.

Current F1 cars are only a few thousand short of 25K RPM.

 

[Howard]

Oh, and by the way, nitrous oxide is not an oxidizer per se. It merely decomposes into diatomic nitrogen and diatomic oxygen (which is the oxidizer).

 

[Pacfanweb]

Originally posted by: Howard

Originally posted by: Pacfanweb

Originally posted by: kevinthenerd

Originally posted by: trez2k3
Current F1 cars are only a few thousand short of 25K RPM.

Yeah, only about 8-10 THOUSAND short. Just a few. They aren't real cars, anyway. We were talking about REAL cars, not exotic race cars that nobody anyone here knows will ever sit behind the wheel of.

 

[element]

What I'd like to know is, if it's the oxygen that provides all the benefit why not use O2 instead of nitrous and feed it at a lower pressure? The bottle would last twice as long right? O2 instead of O.

 

[Demon-Xanth]

The nitrogen smoothes out the reaction, pure O2, even in very small quantities, will blow an engine if injected.

 

[Howard]

Originally posted by: element®
What I'd like to know is, if it's the oxygen that provides all the benefit why not use O2 instead of nitrous and feed it at a lower pressure? The bottle would last twice as long right? O2 instead of O.

If the bottle happened to rupture, you'd definitely want at least 10 feet of concrete around your body. Then you would be able to have a proper burial.

IIRC, aluminum burns in a pure oxygen environment.

 

[PowerMacG5]

Originally posted by: Demon-Xanth
GM actually made a car that redlines at 13,500 RPM. Edit: and I mean production, not just concept.

IIRC it had a turbine engine.

 

[alkemyst]

always so much misinformation....

Divers have long carried tanks on boats, which are a much more hostile environment than cars and tank explosions are extremely rare, what does happen and it's still ultra rare is a tank 'launches' itself due to a fall causing a crack or the valve busting....again very very very rare, but could happen...same with N20 tanks.

Nitrous is an oxidizer, however the biggest benefit is the cooling it does to the intake charge....all an engine is is an oxygen pump, the fuel merely burns it. The cooler the air, the denser it is and the more you can 'fit' in.

Heads don't blow off, the gaskets do...also if you go too lean you can detonate (too big a 'kit') and cause a piston rod to bend or even shoot out the block....again not really dangerous to the driver or passengers, but expensive

The main reason N20 is illegal is not because it can make cars into bombs, it's because it serves no legal purpose to be in a car...however I don't agree with those laws and some states also will allow it to be in the car as long as it's not used.

 

[Scrooge2]

Nos is N2O 2 parts Nitrogen and 1 part oxygen. What it does is break up in your engine into the two elements and the nitrogen cools your engine and you get 1 part oxygen for extra combustion. So it cools AND heats your engine at the same time. This is why it performs so well, and its the same reason why your engine may crack since metal heated and cooled quickly tends to split. Your friend needs to stop watching TV...

Oh also for added fun, N2O is also used in dentist offices, it's the laughing gas that they give you...

 

[jlee]

Originally posted by: Scrooge2
Nos is N2O 2 parts Nitrogen and 1 part oxygen. What it does is break up in your engine into the two elements and the nitrogen cools your engine and you get 1 part oxygen for extra combustion. So it cools AND heats your engine at the same time. This is why it performs so well, and its the same reason why your engine may crack since metal heated and cooled quickly tends to split. Your friend needs to stop watching TV...

Heated and cooled quickly at the same time?

I don't know much about n2o..but from what I understand, cooling/heating at the same time is not exactly what it does..or how it works.

 

[Scrooge2]

Well the nitrogen does cool since its an inflamable element. It doesnt directly heat, the oxeygen is added fuel for burning and as a result it heats the engine from added combustion.

 

[Angrymarshmello]

naaaaaaawwwwss!!!!

 

[Howard]

Originally posted by: Scrooge2
Well the nitrogen does cool since its an inflamable element. It doesnt directly heat, the oxeygen is added fuel for burning and as a result it heats the engine from added combustion.

Sir, please step away from the water bong.

 

[kevinthenerd]

Originally posted by: Skoorb
Well I did. It's gonna be running the 1/4 in 5.5 seconds soon and it's street legal on stock tires with stock tranny and it looks stock. It's the fastest car in the world. It pulls 5 G on the skidpad and I can do the slalom at about 145 mph.

Oh yeah the mods only cost like $1000 too.

That's impossible. Stock tires would never give you that kind of traction, nor would a stock axle and frame give you that kind of strength. Your stock transmission would break, and it certainly would not be faster than the jet-powered car that broke the sound barrier. That skidpad would have to have rails on it to pull 5 g's, and the slalom would have to be on a slope.

You can't be serious.

 

[kevinthenerd]

Originally posted by: notfred<br"NASA has done extensive testing with aircraft." <- does that statement tell you if the 737 you're flying to Dallas on is safe?

FAA

 

[kevinthenerd]

Originally posted by: Millennium

Originally posted by: Jeff7181

Read a book or somethin... I'm not gonna sit here and find links for you all day.

Is that your way of saying you are tired of arguing because you are getting your ass handed to you?[/quote]

I'm 20. I see both sides of the story because I'm old enough to have experienced some adulthood and young enough to remember childhood. Take my advice.

To Mil:

People 18 and over, as I have found, have far less free time on their hands. Working for a paycheck to pay bills is a difficult, time-consuming process, and using online forums is done in precious-little free time. Give the guy a break if he wants to choose his battles.

I work 40+ hours a week. I would know. I have very little time to spend on Anandtech, and I'll have even less in the fall when I'll be working full-time and going to school full-time. A person is forced to set serious priorities under those conditions, and boredom is never an issue.

To Jeff:

Younger people can't help their immature attitudes. You were that way one time too. Don't take it personally; he doesn't have the self-awareness to realize what he's saying.

To Mil:

You'll outgrow this, but for now, try to believe me. He's not giving up here. He's just forced to choose between this argument and whatever else life is throwing him right now.

I say this to both of you: Give the guy a break.

 

[Howard]

Originally posted by: kevinthenerd

Originally posted by: Skoorb
Well I did. It's gonna be running the 1/4 in 5.5 seconds soon and it's street legal on stock tires with stock tranny and it looks stock. It's the fastest car in the world. It pulls 5 G on the skidpad and I can do the slalom at about 145 mph.

Oh yeah the mods only cost like $1000 too.

That's impossible. Stock tires would never give you that kind of traction, nor would a stock axle and frame give you that kind of strength. Your stock transmission would break, and it certainly would not be faster than the jet-powered car that broke the sound barrier. That skidpad would have to have rails on it to pull 5 g's, and the slalom would have to be on a slope.

You can't be serious.

You haven't had much experience with Skoorb, have you? In another thread he said his dream car would have a 5-cylinder rotary.

 

[kevinthenerd]

Originally posted by: Howard

Originally posted by: kevinthenerd

Originally posted by: Skoorb
Well I did. It's gonna be running the 1/4 in 5.5 seconds soon and it's street legal on stock tires with stock tranny and it looks stock. It's the fastest car in the world. It pulls 5 G on the skidpad and I can do the slalom at about 145 mph.

Oh yeah the mods only cost like $1000 too.

That's impossible. Stock tires would never give you that kind of traction, nor would a stock axle and frame give you that kind of strength. Your stock transmission would break, and it certainly would not be faster than the jet-powered car that broke the sound barrier. That skidpad would have to have rails on it to pull 5 g's, and the slalom would have to be on a slope.

You can't be serious.

You haven't had much experience with Skoorb, have you? In another thread he said his dream car would have a 5-cylinder rotary.

So would mine. Rotaries are light, efficient, and powerful. A 5-rotor motor would be quite smooth, too. (firing 70 degrees apart, but the firing order would be a little confusing... I'm thinking 1 4 2 5 3, but that would suck.)


Edit: maybe 1 4 5 3 2?

 

[Howard]

Originally posted by: kevinthenerd

Originally posted by: Howard

Originally posted by: kevinthenerd

Originally posted by: Skoorb
Well I did. It's gonna be running the 1/4 in 5.5 seconds soon and it's street legal on stock tires with stock tranny and it looks stock. It's the fastest car in the world. It pulls 5 G on the skidpad and I can do the slalom at about 145 mph.

Oh yeah the mods only cost like $1000 too.

That's impossible. Stock tires would never give you that kind of traction, nor would a stock axle and frame give you that kind of strength. Your stock transmission would break, and it certainly would not be faster than the jet-powered car that broke the sound barrier. That skidpad would have to have rails on it to pull 5 g's, and the slalom would have to be on a slope.

You can't be serious.

You haven't had much experience with Skoorb, have you? In another thread he said his dream car would have a 5-cylinder rotary.

So would mine. Rotaries are light, efficient, and powerful. A 5-rotor motor would be quite smooth, too. (firing 70 degrees apart, but the firing order would be a little confusing... I'm thinking 1 4 2 5 3, but that would suck.)


Edit: maybe 1 4 5 3 2?

5-CYLINDER rotary, not 5-rotor. Anyway, wouldn't the firing be 144 degrees apart? 720 degrees for one complete cycle, 720/5 = 144.

 

[Howard]

BTW, rotaries are not as efficient as piston engines. The long faces of the rotors and housings absorb a lot of heat, and the compression ratio isn't very high.

 

[boyRacer]

Originally posted by: Howard
BTW, rotaries are not as efficient as piston engines. The long faces of the rotors and housings absorb a lot of heat, and the compression ratio isn't very high.

Could be because development for the rotary hasnt advanced as far as the piston... i think rotaries are pretty damn cool though.

 

[Mill]

Originally posted by: kevinthenerd

Originally posted by: Millennium

Originally posted by: Jeff7181

Read a book or somethin... I'm not gonna sit here and find links for you all day.

Is that your way of saying you are tired of arguing because you are getting your ass handed to you?

I'm 20. I see both sides of the story because I'm old enough to have experienced some adulthood and young enough to remember childhood. Take my advice.

To Mil:

People 18 and over, as I have found, have far less free time on their hands. Working for a paycheck to pay bills is a difficult, time-consuming process, and using online forums is done in precious-little free time. Give the guy a break if he wants to choose his battles.

I work 40+ hours a week. I would know. I have very little time to spend on Anandtech, and I'll have even less in the fall when I'll be working full-time and going to school full-time. A person is forced to set serious priorities under those conditions, and boredom is never an issue.

To Jeff:

Younger people can't help their immature attitudes. You were that way one time too. Don't take it personally; he doesn't have the self-awareness to realize what he's saying.

To Mil:

You'll outgrow this, but for now, try to believe me. He's not giving up here. He's just forced to choose between this argument and whatever else life is throwing him right now.

I say this to both of you: Give the guy a break.[/quote]

Umm... I am 20 as well... so I don't think your advice to me is of much help.