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Friday...Friday...Friday...!!!!!

Nitro-powered NHRA fuel Funny Cars, Dragsters, and Pro Stocks at Sears Point, I mean, INFINEON Raceway!!!

I'll be there, and I can't wait! /forums/images/icons/smile.gif/forums/images/icons/smile.gif/forums/images/icons/smile.gif
 

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Some fun "facts" - not sure if they are 100% accurate, though.......

* One dragster's 500-inch Hemi makes more horsepower than the first 8 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 release per volume.

* The supercharger takes more power to drive than a stock hemi makes.

* 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 equivalent to the output of an arc welder in each cylinder.

* At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame front of nitro methane measures 7050 degrees F.

* Nitro methane burns yellow. The spectacular white flame seen above the stacks at night is burning hydrogen, dissociated from atmospheric water vapor by the searing exhaust gases.

* Spark plug electrodes are totally consumed during a pass. After 1/2 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 synchronization with the pistons.

* To exceed 300 mph 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.
 
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Sunday SUNDAY Sunday... Ticket price pays for the whols seat... but you'll only need the edge!
 

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Those are amazing facts! I read these one's last month:

* Each cylinder makes 875 hp! Man, If my entire 8 made half that I'd be happy!
* The fuel flow is introduced in 3 stages, by the 3rd stage, fuel is being introduced at the rate of a fire hose!

Just amazing!
 

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A few facts are in error, but I'll only rebut one - nitro burns a light bluish-white
color. I know from having burned some left over nitro at El Mirage Dry Lake years ago.. May have had lots of alcohol mixed with it, so for all I know the 98% stuff does burn yellow. Let me slap down $55 bucks for a gallon and I'll let you know !!
 
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