gearhead

gearhead.js

Common automotive math calculations.

Installation

npm install gearhead

Usage

var gearhead = require('gearhead');

Methods

.horsepower(torque, rpms)

Calculate horsepower based on torque and revs per minute.

.horsepower(cylindarPressure, bore, stroke, cylindarCount)

Calculate horsepower based on cylinder pressure (psi), bore, stroke, and number of cylinders.

.torque(horsepower, rpms)

Calculate torque based on horsepower and revs per minute.

.revsPerMinute(horsepower, torque)

Alias: .rpms(horsepower, torque)

Calculate revs per minute based on horsepower and torque.

.displacement(bore, stroke, cylinderCount)

Calculate engine displacement based on bore, stroke, and number of cylinders.

.bore(stroke, displacement, cylinderCount)

Calculate bore based on displacement, stroke, and number of cylinders.

.stroke(bore, displacement, cylinderCount)

Calculate stroke based on displacement, bore, and number of cylinders.

.cylinders(bore, stroke, displacement)

Calculate number of cylinders based on displacement, bore, and stroke.

.assembledDeckHeight(blockHeight, stroke, rodLength, pinHeight)

Alias: .adh(blockHeight, stroke, rodLength, pinHeight)

Calculate the fully assembled deck height based on the block height, stroke, rod length, and pin height.

.boreStrokeRatio(bore, stroke)

Bore/stroke ratio. Always returns a decimal precision of 2.

.rodStrokeRatio(rodLength, stroke)

Rod length/stroke ratio. Always returns a decimal precision of 2.

.compressionRatio(cylindarVolume, chamberVolume)

Compression ratio. Always returns a decimal precision of 2.

.airCapacity(displacement, rpms)

Calculate the air capacity of a cylinder.

.airFlow(airCapacity, boost[, atmosphere = 14.7])

Calculate the maximum air flow in CFM. The atmosphere defaults to sea level which is 14.7.

Tests

$ npm test

License

MIT © Blain Smith