Carfor

From: John Olden (jgolden@prairienet.org)
Date: Sun Nov 15 1998 - 12:46:53 EST


Car Formulas for Racing. An excellent program for all those hard to
remember racing calculations. It's at
http://hotfiles.zdnet.com/cgi-bin/texis/swlib/hotfiles/info.html?fcode=0004Z
G&b=
if that doesn't work go to
http://www.hotfiles.com/index.html
and do a search for "carfor"

It has these features:

   Calculate cubic inches
   Calculate Bore needed for given Stroke and cubic inches
   Calculate Stroke needed for given Bore and cubic inches
   Calculate Bore and Stroke needed for given Bore Stroke ratio & cubic
inches
   Calculate Bore Stroke ratio
   Calculate Rod Stroke ratio
   Calculate Rod Stroke ratio over Rod length Range
   Calculate Rod Length needed for given stroke and rod stroke ratio
   Calculate Rod Length needed for given stroke and rod stroke ratio Range
   Calculate Piston Speed
   Calculate Max RPM from Piston Speed and stroke
   Calculate Compression Ratio
   Calculate Needed Chamber Volume from Compression Ratio
   Calculate Spark Plug heat range change needed for Nitrous
   Calculate Timing retard needed for Nitrous
   Estimate MPH in Quarter-Mile using Horsepower
   Estimate Quarter-Mile Horsepower requirements using MPH
   Estimate Quarter-Mile Horsepower requirements over MPH Range
   Estimate Quarter-Mile Horsepower requirements over ET Range
   Estimate Quarter-Mile ET from MPH
   Estimate the Horsepower gain from adding blower pressure
   Estimate the blower pressure needed for Horsepower
   Estimate the normal Horsepower from blower pressure and Horsepower
   Estimate effective Compression ratio from adding blower pressure
   Estimate the Horsepower gain from increased Compression ratio
   Estimate the Horsepower gain from increased Bore for same CubicInches
   Estimate the Horsepower change from a change in Temperature
   Estimate the Horsepower change from a change in Humidity
   Estimate the Horsepower change from a change in Barometer
   Estimate the Horsepower change from a change in Altitude
   Calculate Vapor Pressure/ Dewpoint
   Convert Horsepower to Torque
   Shift Horsepower up and/or down RPM range
   Convert Torque to Horsepower
   LINEAR interpolation of Horsepower
   Generate generic digital Horsepower curve
   Estimate engine Horsepower
   Calculate average rate of acceleration from rest to X feet
   Calculate Carburetor size in CFM for blown engine
   Calculate Blower Drive Ratio and RPM
   Estimate Exhaust/Muffler(s) Airflow for no HorsePower lose
   Estimate Camshaft duration needed from compression ratio
   Calculate Coil Spring Stiffness/Rate
   Calculate Torsion Bar Stiffness/Rate
   Calculate Sway Bar Stiffness/Rate
   Estimate Intake and Exhaust Airflow for a given engine size
   Estimate Intake and Exhaust Airflow for a engine size Range
   Estimate HorsePower from Intake Airflow over a Range
   Estimate Intake and Exhaust Airflow from HoresPower
   Convert Airflow to a different depression
   Estimate Fuel Flow for a given engine size
   Calculate Minimum Fuel pump pressure
   Calculate Carburetor size in CFM
   Calculate Carburetor jet size change based on change in Barometric
pressure and Temperature
   Calculate Carburetor metering rod size change based on change in
Barometric pressure and Temperature
   Calculate Intake runner length
   Estimate Intake Valve size and port area in sq. inches
   Estimate Valve lift -- Street/Strip engine
   Calculate Header tube length
   Calculate Optimum pipe diameter
   Calculate Affected RPM from tube diameter and tube length
   Calculate Minimum collect length
   Calculate Air filter size
   Calculate Speed(s) for given RPM range
   Calculate Speed(MPH) for given RPM, Rear gear ratio and Trans gear ratio
      also shows --> Total/Overall gear ratio
   Calculate RPM(s) for given MPH range--Tire Size--Axle ratio
   Calculate Trans first gear ratio -- Manual
   Calculate Trans first gear ratio -- Automatic
   Calculate Trans gear change(shift) RPM
   Calculate Rear gear ratio needed
   Calculate Gear ratio from gear tooth count
   Calculate Rear gear ratio change on RPM
   Calculate Rear gear ratio needed after tire size change
   Calculate Tire's nominal diameter -- use to compair different size
(width) and aspect ratios to keep same diameter
   Speedometer Check / Calculate speed over measured mile
   Calculate Lap Speed(MPH) over measured distance from distance and time
     NOTE: Consult included files TRACK.SZ and ATRACK.SZ for many common
track sizes in miles.
   Calculate Lap time over measured distance from distance and Lap Speed
   Calculate Track Size / measured distance from Lap Speed(MPH) and time
   Calculate Skidpad G's from Track Size and Lap time
   Convert PSI to " of Mercury, kPa, " of Water, cm of Mercury and kg/cm^2
   Convert " of Mercury to PSI, kPa, " of Water, cm of Mercury and kg/cm^2
   Convert kPa to PSI, " of Mercury, " of Water, cm of Mercury and kg/cm^2
   Convert " of Water to PSI, kPa, " of Mercury, cm of Mercury and kg/cm^2
   Convert cm of Mercury to PSI, " of Mercury, kPa, " of Water and kg/cm^2
   Convert kg/cm^2 to PSI, " of Mercury, kPa, " of Water and cm of Mercury
   Convert inches of vaccum to absolute PSI
   Convert absolute PSI to inches of vaccum
   Convert MilliMeters(MM) to inches
   Convert Microns to inches
   Convert inches to MilliMeters(MM)
   Convert Cubic centimeters(CC) to Cubic inches and Fluid ounces
   Convert Cubic inches to Cubic centimeters(CC) and Fluid ounces
   Convert Fluid ounces to Cubic inches and Cubic centimeters(CC)
   Convert ft-lb to N-m (Newton-meter) and m-kg
   Convert N-m (Newton-meter) to ft-lb and m-kg
   Convert m-kg to ft-lb and N-m (Newton-meter)
   Convert lb to N (Newton) and kg
   Convert N (Newton) to lb and kg
   Convert kg to lb and N (Newton)
   Convert Ounces to Grams
   Convert Grams to Ounces
   Convert deg. Fahrenheit to deg. Celsius
   Convert deg. Celsius to deg. Fahrenheit
   Convert MPH to kilometers/hr. (km/h)
   Convert kilometers/hr. (km/h) to MPH
   Convert BTU to Joules
   Convert ft-lb to Joules
   Convert kW-hr to Joules
   Convert Calorie to Joules
   Convert Joules
   Show Decimal Fraction Equivalence Chart
   Show Decimal Equivalence Size of the Number Drills
   Show Decimal Equivalence Size of the Alpha Drills
   Show Decimal (Inches .01) Metric(MM) Equivalence Chart
   Show Decimal (Inches .1) Metric(MM) Equivalence Chart
   Show Decimal (Inches) Metric(MM) Equivalence Chart
   Show Metric(MM .01) Decimal(Inches) Equivalence Chart
   Show Metric(MM .1) Decimal(Inches) Equivalence Chart
   Show Metric(MM) Decimal(Inches) Equivalence Chart
   Show PSI to kPa Chart
   Show kPa to PSI Chart

Awesome huh?
<><><><><><><><><><><><><><><><><><><><><><><>
<> (JOHN G. OLDEN) jgolden@prairienet.org <>
<> IDDA: 1123 (Membership Officer) <>
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