lets have a technical discussion

[sv650s]

ok fuel needs oxygen to burn and the more oxygen you can fit in, the better it's gonna burn. air has i think about 14% oxygen and nitrous has about 33% so nitrous is gonna make the fuel burn better. if there was a way that you could spray nitrous for a very long time would it descrease gas mileage? I have a feeling that it won't since it doesn't cram more air into the engine so more fuel doesn't come in to make the fuel/air ratio better, but there's this stubborn ass guy that keeps argueing with me about it.

[Reed]

well you need to learn the difference between lean and rich. lean means that in the air to fuel ratio, there is too much air. rich is the opposite, there is too much fuel for the air to support. now when running nitrous you should add more fuel to make more power and to get closer to a stiochiometric mixture 14.7 to 1 (i believe). if you dont add fuel when running n2o you will have more oxygen than you would have in a stoich mixture therefore you are running lean.

[beef_bourito]

for better fuel economy you are supposed to run a little lean, the fuel burns quicker, giving you more power and less need for fuel. putting a bit of nitrous can help fuel economy but it costs soo much that it isn't worth it, you won't get any return on investment.

[534BC]

Adding the fuel with the nitrous is necessary and will therefore decrease mpg while it is turned on. I am not aware of any nitrous system that will add only nitrous.

[beef_bourito]

it's not necessary to add fuel, you can run a little lean without causing any damage to your engine. you can do this by either reducing the ammount of fuel or keeping the same ammount of fuel and increasing the oxygen. if you add a very small ammount of nitrous without increasing the fuel you will get a bit more power and better fuel economy but it will cost you the price of nitrous. all you have to do is keep the engine from running too lean.

[534BC]

I guess you are correct , add up to just a bit horsepower 20 max. It would be ok. I was thinking in the 100's.

[beef_bourito]

if you want 100 more horsepower you will decrease your fuel economy. the way to get better fuel economy is to use less fuel to do the same ammount of work. so basically you make what you have mroe efficient. putting a whole exhaust system will increase fuel economy, as long as you can keep your foot off the floor, increased compression will do the same. nitrous will only add to fuel economy if you don't use more fuel to do the same ammount of work.

[UncleBob]

to add a little bit to the variable turbo's, such as aerochargers, they have multiple vains that move on a linkage, which move towards and away from the turbine, creating more or less velocity across the turbine. This allows it to act as a small AR at low flows, and then as the flow increases, the AR increases, keeping the back pressure from getting out of control, but still allowing early spooling.

They are very fragile though, and have a habit of getting damaged with any kind of high boost numbers.

There has been other attempts at the same thing that are more robust....I'm actually designing my own setup on a motorcycle that will have the same idea behind it without the fragile aspect...but although I'd like to take credit for thinking it up, diesel turbo's have been playing with my idea for a long time, but its definitely never been used quite in this fashion, let alone in the application

[Reed]

are the vains on the turbine or compressor or are they a moving part of the turbine or compressor housings?

[454Casull]

Originally Posted by Reed

are the vains on the turbine or compressor or are they a moving part of the turbine or compressor housings?

They're attached to the turbine housing.