Author Topic: Fun with Nitrous, how to torch cut a valve under load...  (Read 38271 times)

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Offline SPARKY

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #120 on: November 22, 2008, 09:10:47 AM »
Inconnel exhaust with Berlinum  sp? seats will handle more heat transfer.
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline Geo

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #121 on: November 22, 2008, 09:48:28 AM »
Measuring volume should be done with a size unit close to the amount you are measuring.  Less error due to clinging material left behind on the sides and bottom of your container.

For comparing or matching multiple items you should use the same measurement container for each item.

To measure total flow dump all running at the same time into a larger container that is near to the total volume using your pump and hoses on the car.  This will show you how your system works and using your 5 gallon bucket run it for a few minutes to test battery, wires and pump as things heat up from electrical flow through the circuits.

You can change the time period to match the volume to your collection container.

Use the least flammable material possible.  See the comparison charts below.

Thank Isaac Newton for your ability to go fast.  :wink:

1 gallon = 16 cups = 3.7853 liters  times 5 gallons

1 cup = 8 fluid ounces = 0.02366 liters

You should be able to use an 8 fluid ounce measurement safely.  A five gallon bucket will be 80 times larger than the measured amount leading to high error in initial measurement and comparative measurement.  I know you were joking about the handy 5 gallon bucket but we use what's handy and there might be a quart oil container or two about that would be a better.  Remember “good”  is beaten by “better”.   8-)

      Viscosity   Viscosity
      [Pa·s]      [cP]

ethanol*    1.074 × 10−3    1.074
methanol*    5.44 × 10−4    0.544
nitrobenzene*   1.863 × 10−3    1.863
water       8.94 × 10−4    0.894

http://en.wikipedia.org/wiki/Viscosity

http://www.engineersedge.com/fluid_flow/fluid_data.htm

http://www.engineeringtoolbox.com/dynamic-absolute-kinematic-viscosity-d_412.html

Some typical viscosities (cP at 20°C)
methanol       0.6
water          1.0
ethanol       1.2
beer          1.8  :cheers:
corn oil       72
olive oil       84
motor oil SAE 20    125
motor oil SAE 50    540
castor oil 986

With a nice visual chart at http://www.fluidresearch.com/viscosity_chart1.php

http://209.85.173.132/search?q=cache:pccQAI93ZW0J:www.hydramotion.com/pdf/Website_Viscosity_Units_V2.pdf+fluid+viscosity+unit&hl=en&ct=clnk&cd=10&gl=us

Calculators

http://www.gordonengland.co.uk/conversion/dynamic_viscosity.htm

http://wps.aw.com/wps/media/objects/877/898586/topics/topic02.pdf

Geo

Offline joea

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #122 on: November 22, 2008, 01:50:52 PM »
some small syringes are handy and cheap for measuring
cc's or ml's, you can draw up fuel in each small container
and get a fairly accurate assessment...

then a weight per unit volume to later calculations...in figuring
lbs per hr-min-etc nitrous to fuel...


Offline Stainless1

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #123 on: November 22, 2008, 02:05:32 PM »
T & B, your best results is to use the liquid you are going to use in the system at the pressures you plan to run.  In other words, your bike can be part of your test bench.  Just be careful.  I would suggest baby food jars to catch the fuel.  You should be able to do a 30 second test spraying fuel without overfilling.  Don't allow any dripping after your release the button if possible.  Weigh and number all of them, race gas will erase Sharpie, so be careful.  Weigh each container, subtract jar weight and you have the weight of the fuel spraying into each cylinder.  Running N20 test about the same, weigh the bottle, run 1 jet at a time for 30 sec, re-weigh, difference is the amount of N20 going in.  
If you are very very lucky, the weights will be close to the same.  Converting everything to Pounds per Hour will help with perspective.  Try to put together matched sets of jets for quick change options.  Have fun, race season is only several months away.

Joe, syringes are a good idea also.... you were typing while I was
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

Offline wfojohn

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #124 on: November 23, 2008, 10:00:44 AM »
Geo,

Thank you for compiling the info and links, much appreciated. Now I need to set aside enough time to get a grasp on it.

J.R.

Offline Stainless Two

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #125 on: November 23, 2008, 07:01:03 PM »
and all this info after years of breathing the med grade stuff..simply amazing!
Look at my new RED HAT!!!!

#278 1000CC APS-G 208.959MPH record
209.093 mph best time

pit bitch to #1000 Bockscar

Proud to be a Texan!  in San Antonio

Offline TRNorBRN6001

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #126 on: December 15, 2008, 09:48:31 PM »
Some Pictures of the cleaned up head with some nice fatty seats.







Bonus: Santa came early and left me some new plugs for the Old ZX-12  :cheers:





Offline 1212FBGS

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Re: Fun with Nitrous, how to torch cut a valve under load...
« Reply #127 on: December 15, 2008, 10:43:02 PM »
yep dems de right sparkin bolts...... knock those high spots out of your combustion chamber... yeah youll loose some compression but unshrouding the valves and opening up the combustion chamber is well worth it.... NOS likes a bigger chamber to fill
kent