your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted June 11, 2002 07:23 AM
Not quite the power of my 12...but hey..its close :D
One dragster's 500-inch Hemi makes more horsepower then the
first 4 rows at Daytona
Under full throttle, a dragster engine consumes 1 1/2 gallons of
nitro per second, the same rate of fuel consumption as a fully
loaded 747 but with 4 times the energy volume.
The supercharger takes more power to drive then a stock hemi makes.
Even with nearly 3000 CFM of air being rammed in by the
supercharger on overdrive, the fuel mixture is compressed into
nearly-solid form before ignition. Cylinders run on the verge of
hydraulic lock.
Dual magnetos apply 44 amps to each spark plug. This is the
output of an arc welder in each cylinder.
At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame
front of nitromethane measures 7050 degrees F.
Nitromethane burns yellow. The spectacular white flame seen
above the stacks at night is raw burning hydrogen, dissociated
from atmospheric water vapor by the searing exhaust gases.
Spark plug electrodes are totally consumed during a pass. After
½ way, the engine is dieseling from compression-plus the glow of
exhaust valves at 1400 degrees F. The engine can only be shut
down by cutting of it's fuel flow.
If spark momentarily fails early in the run, unburned nitro builds
up in those cylinders and then explodes with a force that can
blow cylinder heads off the block in pieces or blow the block in
half.
Dragsters twist the crank (torsionally) so far (20 degrees in the
big end of the track) that sometimes cam lobes are ground offset
from front to rear to re-phase the valve timing somewhere closer
to snchronization with the pistons.
To exceed 300mph in 4.5 seconds dragsters must accelerate at
an average of over 4G's. But in reaching 200 mph well before 1/2
track, launch acceleration is closer to 8G's.
If all the equipment is paid off, the crew worked for free, and for
once NOTHING BLOWS UP, each run costs $1000.00 per second.
Dragsters reach over 300 miles per hour before you have read
this sentence.
:o
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Do not taunt happy fun ball!
   
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TReMor
Expert Class
Dazed and Confused
Posts: 115
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posted June 11, 2002 09:10 AM
Good post, thanks. 
-------------------------
Tim -- Temecula, CA
2002 ZX-12R
Mystic Black/ Gold
Bone stock (for now)
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jessz1
Expert Class
Half the wheels, twice the fun
Posts: 373
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posted June 11, 2002 09:48 AM
Cool!!!
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I'm never satisfied.
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beansbaxter
Needs a life
Posts: 5911
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posted June 11, 2002 09:48 AM
Nice!
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12RPilot
Pro
Posts: 1094
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posted June 11, 2002 12:47 PM
Anyone know how many G's a ZX-12 will pull off the line? A half, maybe?
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If you aren't an AMA member, you're part of the problem.
NESBA #209
http://www.bikepics.com/members/12rpilot/04zx10r/
 
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ZXtra
Expert Class
Posts: 490
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posted June 11, 2002 07:24 PM
This past weekend I saw a 4.85 second run lose to a 4.65 second run...at night!!! 317 mph. Awesome!!! -ZXtra
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The sixth sick sheik's sixth sheep's sick!
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