Hi Trev yes a long time lol I should be retired ...BUT. .....granted the post is a little confused ,I'm normally doing turbo with exotic fuels but this year ordered parts will be late so on the spur of the moment I decided to go back to an old record of mine that was taken by others ( a nitrous record) , due to time and money restraints I'm throwing together existing old parts and my road bike ( hayabusa) which is stock, you could say making a purse out of a sows ear.
Condensed version limited to 2x 5 lb NX ( nitrous express) bottles total 10 lb of nitrous, need to spray for minimum of 60 seconds ( do not have a nitrogen pressurizing system) spraying a total of 140 HP using 4x 0.031 thou jets nitrous side again NX jets...... asking the question when is the best time to spray A. early say 5/6 K rpm to benefit from the extra torque and acceleration but use the nitrous early in the run and risk running out before the timed mile or 2. spraying late say near max RPM and reaching the timed mile but not knowing if the benefits are there spraying at near max revs or will it want to over rev and trip the rev limiter? nitrous will be brought in over time.
2. At what point does the contents and pressure in the bottles begin to drop off substantially as a percentage of the total contents causing a corresponding drop in power?
That depends on a number of factors;
1) The amount of nitrous you are flowing (jet size), 2) The position of the bottles, 3) The spec of the bottles, 4) The type and colour of coating or lack of one (which I'm sure will surprise you), 5) the ambient temperature
There are a number of ways you can get better results, than using a 'basic' system, even a WON 'basic' system.
Jet size is 0.031 X 4 nitrous ....bottle position low at rear of swing arm both sides ( only possible place to locate them ), bottles angled at aprox 30 deg from the horizontal , valves at high point.... bottle type NX brand standard motorcycle valve....colour of bottles is white ( no I did not know colour counted) ambient temp ( hot ) averages around 100 deg F some times up to 120 deg F
my calculations for usage are 100 hp = 1.2 lbs every 10 seconds is this correct?
That sounds rather high to me but as I haven't had to provide the correct figure for many years, it's slipped my mind for now, so I'll have to check my records to give you the correct figure but again whatever the figure is, you can't change it so it's of no real consequence to what you are trying to achieve.
The key things to aim for are; Consistent pressure and Maximum efficiency.
If you can either send me pictures of all parts of your system fitted to the bike, to
enquiries@noswizard.com or better still, post them here and I'd be happy to assess them and give you as much advice, on how to achieve your goals as possible.
these calulatios for usage are from my old notes back in the day thats why I was asking if they are a valid calculation......no pics yet as I'm still building
Thanks for the reply:) If I ever find the time I would love to do a full blown revo set up with 20 lbs of n2o and a nitrogen pressure set up and shoot for the moon