Rate this app:

More details

Add your questions or answers

Q: How to get the best score?

Q: What is your favourite trick in this game/app?

Q: What is your strategy?

Gearhead Drag Gameplay, Trailers and Related Videos

Watch Gearhead Drag Racing video.

Watch Forza Horizon | 800HP 76mm Supra Drag Racing - 1320 Digs with Gearhead Race Team video.

Watch Gear Head Drag Day video.

Watch Daily Driven Hellcat into the 9's - Better than a Demon?! video.

Watch Drag Car Body Ripped Off Chassis - BeamNG.drive video.

Watch Gearhead, Inc '69 Mustang Smokes a '70s Camaro (Drag Race!) video.

Watch Turbo Supra 2jz drag racing Toby Gear Head video.

Watch GearHead704 video.

Watch 1000HP Dodge Demon FROM HELL! - 700+ DRAG RUNS video.

Watch 18 Year Old's 8-SECOND Pass in TWIN TURBO Camaro!!! video.

About the application:

From a hobby gearhead to a professional engine or chassis builder, you’ll wish Gearhead Drag! Gearhead Drag is the calculator apk that us gearheads use for a lot of performance automotive parameters. It calculates or estimates numerous engine, exhaust, gearing, tire, suspension, acceleration, weather effects, and another car parameters along with tap and drill sizes. Gearhead Drag works in both standard and metric troops and even has advanced settings to customize the calculations to your specific scenario so you can choose the most compatible parts for your application. Gearhead Drag calculates or estimates: Speed/Gearing - Engine RPM from car speed, gearing, tire size - Car Speed from engine RPM, gearing, tire size - Axle Gear required for a specific RPM at a certain speed with a given tire size - Tire Diameter and Cross section width from sidewall size - Easy gear ratios based on drive and driven tooth count Engine - Displacement from cylinders, bore, and stroke - Bore/Stroke ratio - Static Compression Ratio - Average Piston Speed - Airflow - Connecting Rod Ratio - Maximum connecting rod angle from cylinder axis - Compression Height (piston wrist pin height) - Dynamic Compression Ratio from the point the intake valve closes - Head gasket volume (from bore and compressed thickness if round) - Valve opening and closing happenings from the cam duration, IC, and LSA - Cam specs from the valve opening and closing happenings - Valve overlap - Valve lift based on fresh rocker ratio or lobe lift and rocker ratio - Valve spring forces from valve spring specs to actual installed height and lift - Tag dimension on your balancer to set a desired timing advance Engine Externals - Minimum air filter size for your engine - Suggested header basic tube size for your engine - Suggested exhaust size for your engine - Cross-sectional flow place of a pipe, or the pipe size from a desired flow area Suspension - Instant Center and Anti-Squat of a 4 link rear suspension - Cg height of your car using the raise one end method Weather - Specific humidity - Air Density Index - MSA density altitude - Power Correction Factor of the current weather conditions Power - Power from Torque and RPM, or vice versa Fasteners and Threading - Lookup a cutting tap drill size Fuel System - Total Fuel system flow for fuel pump selection - Fuel injector flow for injector selection - Convert an injector flow rating to a fresh pressure or flow Acceleration - Power of your engine based on your drag racing performance and weight - Drag performance based on power and weight - Time you would run on a ¼ mile track (.4 km) based on 1/8 mile (.2 km) performance - ET or speed based on a previous ET or speed and a weight or weather change - More power required to achieve a fresh ET or speed If you are looking for more please check out our "Gearhead Pro" app. None of our apks have adds or use unique permissions.