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FORD BRONCO -> CALCULATORS/CONVERTERS; axle ratio, HP...
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This is a Ford Bronco, Truck & Van Technical, Parts & Vehicle Classifieds LINKS site developed by the MIESK5 Family and is not affiliated with the Ford Motor Company in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to Ford Trucks, Vans & Cars.
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1/4 Mile Speed Calculator
Source: by Fast wheels at members.tripod.com
1/4 Mile Time Calculator
Source: by Fast wheels at members.tripod.com
Actual Speed vs. Speedomter/PSOM Reading w/tire size change
Source: by intercotire.com
Aero Drag - HP Loss
Source: by G-Tech  gtechprosupport.com
Aerodynamic & Rolling Horsepower
Source: by Bowling & Grippo bgsoflex.com
Air Requirements in CFM Calculator
Source: by raceabilene.com
Alternator Sizing (for audio amps, OEM electrical accessories, etc.)
Source: by HO® highoutputalternator.com
Axle Torque Calculator
Source: by Moser  moserengineering.com
Axle Ratio
Source: by trucks.com
Battery Cold-Cranking Amp Estimation
Source: by Bowling & Grippo bgsoflex.com
Bore & Stroke (gasket thickness, deck height, valve pocket, head ccs & # of cylinders to compression ratio & displacement
Source: by Ross Racing Pistons rosspistons.com
Brake Pedal Ratio
Source: by markwilliams.com
Brake Master Cylinder Lever Ratio
Source: by markwilliams.com
Calculators & Tables
Source: by intercotire.com
CFM Calculator
Source: by Pony Carburetors, Inc.  ponycarburetors.com
Coil spring rate
Source: by proshocks.com
Coil Spring Rate
Source: by f-o-a.com
Compression Ratio, piston head volume/compr. height, ring end gap, deck clearance/displacement
Source: by kb-silvolite.com
Compression Ratio
Source: by Federal-Mogul
Compression Ratio (head volume in CC, piston top volume, cylinder bore, crankshaft stroke, deck height & gasket height)
Source: by Bowling & Grippo bgsoflex.com
Compression Ratio HP Change Calculation
Source: by Bowling & Grippo bgsoflex.com
Compression Ratio-Displacement Calculator
Source: by raceabilene.com
Crawl Ratio
Source: by 4lo.com
Crawl Ratio
Source: by therangerstation.com
Crawl Ratio
Source: by Pit Bull Tire Company® pitbulltires.com
Crosswind, Highway
Source: by csgnetwork.com
Cubic Inches to Liters (click Site Map, Chad's Tips, Previous Tips)
Source: by autokrafters.com
Cylinder Head Flow Correction
Source: by Dan B at Bowling & Grippo bgsoflex.com
Deck Clearance; compute the deck clearance for above or below deck applications
Source: by kb-silvolite.com
Differential Gear Computation, Best (top speed MPH, tire diameter, RPM @ peak HP)
Source: by Bowling & Grippo bgsoflex.com
Differential Gear Ratio (RPM, tire diameter, target MPH)
Source: by currieenterprises.com
Differential Gear Ratio Calculator (RPM, tire size and desired MPH)
Source: by currieenterprises.com
Distance, Temperature, volume, time, speed, mass, power, density, pressure, energy, etc.
Source: by joshmadison.com
Distances between Longitude & Latitude points
Source: by csgnetwork.com Drag Performance Calculator by Drag Performance via richmondgear.com
Drive Shaft Velocity Calculation
Source: by Bowling & Grippo bgsoflex.com
Engine Size & Compression
Source: by Mike C at Procrastination Racing
Engine Displacement by bore, diameter, # of cylinders
Source: by Federal-Mogul
Engine Displacement Calculator
Source: by Bowling & Grippo bgsoflex.com
Engine Horsepower Calculation
Source: by Bowling & Grippo bgsoflex.com
Engine Related Formulae; Static Compression Ratio, CFM, HP & Torque, BHP, Cylinder volume (displacement), Piston speed (ft. per mm.), Valve Spring Rate, Rod Ratio, Starting Ratio, Carburetor Size formula, Center of Gravity, Transmission's Gear Ratio, Drill sizes for Tapping Threads, etc.
Source: by truckpulls.com via web.archive.org
Estimated Quarter ET from rear wheel HP & weight
Source: by raceabilene.com
Estimated Quarter Mile Speed from Rear Wheel HP & Weight
Source: by raceabilene.com
ET & MPH Environmental Correction; correct quarter-mile Elapsed Time (ET) and Miles-per-Hour (MPH) to Standard Conditions
Source: by Bowling & Grippo bgsoflex.com
Exhaust Header Length Computation
Source: by Bowling & Grippo  bgsoflex.com
Fraction to Decimal to Metric Conversion Table
Source: by Autolite®  autolite.com
Fraction to Decimal
Source: by Federal-Mogul
Fuel Injector Sizing Program, General
Source: by Bowling & Grippo bgsoflex.com
Fuse Size
Source: by HO® highoutputalternator.com
Gear Ratio (new tire diameter & gear ratio)
Source: by Reider Racing Ent., Inc.
Gear Ratio (new tire diameter & gear ratio)
Source: by Pit Bull Tire Company® pitbulltires.com
Gear Ratio (ring & pinion teeth count)
Source: by therangerstation.com
Gear Ratio (ring & pinion teeth count)
Source: by currieenterprises.com
Gear Ratio (ring & pinion teeth count)
Source: by jawsgear.com
Gear Ratio (RPM, tire diameter, target MPH)
Source: by currieenterprises.com
Gear Ratio Change From Tire Change
Source: by therangerstation.com
Gear Ratio Guide for Larger Tires
Source: by Rough Country® roughcountry.com
Gear Ratio Guide for Larger Tires
Source: by Rough Country® via broncocity.com
Gear Ratio Optimum Shift RPM (4 speed manual)
Source: by Drag Performance richmondgear.com
Gear Ratios, (RPM, speedometer, etc., scroll to bottom)
Source: by Mark M at wt4x4.net
GPS Data Conversion Tools
Source: by Lars at BB.BC4x4.com
Header Length Computation Program
Source: by Bowling & Grippo bgsoflex.com
Highway Dyno
Source: by Bowling & Grippo at bgsoflex.com
Highway Dyno
Source: by Bowling & Grippo bgsoflex.com
Holley Carburetor Jet Program
Source: by Bowling & Grippo bgsoflex.com
Horsepower and Torque
Source: by Federal-Mogul
HP to Quarter Mile
Source: by musclecarclub.com
HP, simple
Source: by dsm.org
Ignition Circuit Simulation
Source: by bgsoflex.com
Impedance, for Dual Voice Coil Subs
Source: by HO® highoutputalternator.com
Impedance, for Single Voice Coil Subs
Source: by HO® highoutputalternator.com
Inch - MM
Source: by mdmetric.com
Inch to MM
Source: by industrial-enclosures.com
Intake Runner Length Prediction
Source: by Bowling & Grippo bgsoflex.com
Intake Runner Length Prediction
Source: by Bowling & Grippo bgsoflex.com
International Time Zone Converter
Source: by csgnetwork.com
Light Truck Tire
Source: by csgnetwork.com
Machinist's Calculator (right angle triangles)
Source: by machinist-calculator.com
Metal Weight
Source: by Metal Suppliers Online  suppliersonline.com
Metric Conversion Table
Source: by Bresco
Metric Tire Conversion
Source: by therangerstation.com
Metric Tire Conversion
Source: by Rough Country® roughcountry.com
Metric Tire Conversion
Source: by Pit Bull Tire Company® pitbulltires.com
Metric Tire Conversion
Source: by Red Rock 4x4
Metric Tire Conversion
Source: by Jeff B at rmftc.com
Metric Tire Conversion
Source: by therangerstation.com
Miles Per Hour (MPH) (tire diameter, RPMs, axle ratio)
Source: by currieenterprises.com
Miles Per Hour (MPH) (tire diameter, RPMs, axle ratio, transmission & transfer case ratios)
Source: by Pit Bull Tire Company® pitbulltires.com
Miles-Per-Gallon (MPG) by coefficient of drag, frontal area, tire pressure, brake-specific fuel consumption, and speed
Source: by Bowling & Grippo bgsoflex.com
Mimimum Cable Size to Use (AWG) Table
Source: motorcityreman.com
MM to Inch
Source: by industrial-enclosures.com
MPG by Miles Driven & Gallons Bought
Source: by 4wheeldrive.about.com
MPG by Miles Driven & Gallons Bought
Source: by therangerstation.com
Odometer Calibration Program (drive or driven gear, gear ratio, rear tire diameter, speedometer revolutions)
Source: by Bowling & Grippo bgsoflex.com
On-line Conversion - convert just about anything to anything else in Windows®
Source: by OnlineConversion.com
On-line, PC, PDA, WAP & cell phone
Source: by calculator.com
Optimum Quarter ET from Quarter Mile Top Speed Calculator
Source: by raceabilene.com
Piston Compression Height; get the approximate piston compression height.
Source: by kb-silvolite.com
Piston; will give you the proper piston head volume with a known compression ratio
Source: by kb-silvolite.com
Ramp Travel Index (RTI) Calculator
Source: by therangerstation.com
Re-Gearing, Bronco; "...equations for determining what gear ratio you may want .."
Source: by Jer C (Godless, Beerman, SOLD) at FSB
Rear End Ratio (RPM, MPH, tire diameter)
Source: by markwilliams.com
Rear End, overall width, (click in left panel)
Source: by Nine Plus new9inch.com
Revolutions Per Minute (RPM) (axle, transmission & transfer case ratios, tire diameter
Source: by currieenterprises.com
Ring End Gap; you can obtain the proper ring end gap requirements for KB Pistons using end gap factors from inside the front cover of the KB catalog or on this web site
Source: by kb-silvolite.com
Ring End Gap; you can obtain the proper ring end gap requirements for KB Pistons using end gap factors from inside the front cover of the KB catalog or on this web site
Source: by kb-silvolite.com
Road Mapping scale
Source: by csgnetwork.com
RPM (axle ratio, MPH, tire diameter)
Source: by precisiongear.com
RPM (axle ratio, MPH, tire diameter)
Source: by jawsgear.com
RPM (axle ratio, transmission & transfer case, tire diameter)
Source: by balsa.no
RPM (axle ratio, transmission & transfer case, tire diameter)
Source: by Pit Bull Tire Company® pitbulltires.com
RPM at a given MPH, or MPH at a given RPM, tire diameter, final (differential) gear ratio, and transmission ratio
Source: by Bowling &; Grippo bgsoflex.com
RPM, Street Performance (rear end ratio, tire diameter, desired MPH, etc.)
Source: by RICHMOND™ Performance Products  richmondgear.com
Scientific (area, cosine, tangent, square root, sines, quadratic equation)
Source: by westechperformance.com
Scientific w/extended capabilities for Windows®
Source: by binarythings.com
Shift Point, Optimum
Source: by Bowling & Grippo bgsoflex.com
Specialist Calculators, shapes, general arithmetic, Cost of Living Index in var. countries, etc.
Source: by Cleave Books cleavebooks.co.uk
Speedometer & PSOM Driven Gear Calculator, Ford
Source: by Jim R at home.mchsi.com
Speedometer Calculator, by Tire Diameter
Source: by Pit Bull Tire Company® pitbulltires.com
Speedometer Calculator, by Tire Diameter
Source: by currieenterprises.com
Speedometer Calculator, by Tire Diameter
Source: by 3.mtco.com via webarchive.org
Speedometer Calculator, by Tire Diameter
Source: by The Ranger Station  therangerstation.com
Speedometer Calibration Program (drive or driven gear, gear ratio, rear tire diameter, speedometer revolutions)
Source: by Bowling & Grippo bgsoflex.com
Speedometer Gear Change Calculator w/Ford Part Numbers, Colors, & Tooth Count
Source: by Chris B (Blue, bronco boy) at 3.bc.sympatico.ca
Spring, Coil Rate
Source: by therangerstation.com
Spring, Leaf
Source: by therangerstation.com
Springs - weight & percentage
Source: by proshocks.com
Temperatures - F to C; measurements - dec. to metric
Source: by heatshieldproducts.com
The Calculator Home Page
Source: by dml via dakota-truck.net
Tire Change, gear ratio, mph, ring & pinion
Source: by intercotire.com
Tire Height Calculator (based on width, aspect & size)
Source: by jawsgear.com
Voltage Drop in a Power Cable, Audio
Source: by HO® highoutputalternator.com
Volume, Lengths, weights, etc.
Source: by bobistheoilguy.com
Volume, Weight, pressure, temp., time, speed, energy, power
Source: by arizonadrivelines.com
Volume: Head, clearance gasket; compression ratio, swept volume, liters to CI
Source: by BAT Auto Technical Bruce, Alan & Tony TroubleCodes.net
Wheel & Tire Motion
Source: by csgnetwork.com