Denny, you & Loopy are way above my head here. The following 2 "laws" seem in contradiction?
racetested wrote:
Boyle's Law: The volume and pressure of a mass of gas at a fixed temperature is inversely proportional. If the pressure on a gas increases, its volume will decrease; likewise, if the volume is increased the pressue wil decrease.
The Pressure Law (Charle's Law): The volume of a mass of gas depends on its temperature. The higher the temperature, the greater the volume. If the volume cannot change, the pressure of the gas will. Therefore the pressure and temperature of a gas are also directly related. If you increase one, you also increase the other.
Coming back to something simpler, that
I might understand. I've seen some state phase change occurrs at 1025 PSI. And to NOT go above that bottle pressure because of it.
Well, I've ran my nitous systems at 1050 PSI for years - due to the high heat conditions we race under during our racing season. For instance, we ran 2 races this year, at a sunny @103ºF - so keeping bottle pressure down in the staging lanes, becomes almost impossible when the inside car temp is 140-150F.
It seems to me, that Boyles law cannot be accurate here, because in every instance (up to 1100psi) the more bottle pressure available, the more nitrous was used during a pass and the tune-up definately became leaner. I know of 1 good hard/running car that always runs @ 1150psi bottle pressure. My question is, can phase change be a constant? Is it temperature and/or pressure sensitive? Is it entirely due to "the plumbing"? Or is it some, or ALL these things?
As a personal aside here regarding liquid/fluid nitrous delivery: I put a double set of Trev's Pulsoids on my car (to replace one of the existing nos systems.) I remember receiving the Pulsoids & looking at that very little 4mm OD stainless line coming out of the nitrous Pulsoids, and thought to myself - I don't care what he says, that little line means these things will never make any horsepower! Well, I was wrong (again).
I do NOW appreciate that keeping nitrous liquid, must be darn important. I thought I "understood" the principle of that, but didn't "appreciate" what it REALLY meant. I kinda' thought Trev might be a little crazy, when he initially told me to start running with 3 additonal lbs of fuel pressure, above what I normally ran (I ended up running 2+lbs more.) Even though the system made more power than the one it replaced, nitrous consumption actually went Down 25+%. To someone who has tuned 2 & 3 nitrous systems for years, this indicated a BIG change/difference. In otherwords, less nitrous ended up being more. I'm still kinda' thinking about that one.