AutoTech1.7 - App Store
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Publisher Description
AutoTech is an automotive calculator that offers the mechanic, technician or enthusiast quick computation of 45+ formulas in the areas of aerodynamics, chassis, drivetrain, engine, performance, suspension, and tires. Supports both U.S. and metric units.
Version History New Engine Calculation:
- Rod Angularity
Under the hood changes required by advancements in iOS. 1.7 Aug 14 New Suspension Calculations:
- Angle Corrected Spring Rate
- Stacked Spring Rate
Age rating update required by Apple. 1.6 Jan 7 New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)
New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate
Fixed an issue in the Unit Converter where Weight was not being shown as an option. 1.5 04/11/2023 Dark mode support.
New Drivetrain section that includes:
- Axle Speed
- Driveshaft Critical Speed
- Gear Ratio
- Rear Wheel Torque
- RPM After Shift
New Engine Calculations:
- Deck Height Clearance
- Valve Curtain Area
New Density category in Unit Converter. 1.4 08/26/2020 Modernized user interface.
New engine calculation: Supercharger Temperature Gain.
Additional information provided for:
- Brake Mean Effective Pressure
- Effective Drive Ratio
- Equivalent Drive Ratio
- Power Loss at Elevation 1.3 10/15/2016 Four new calculations:
- Aerodynamic Lift-Induced Drag
- Injector Flow Rate
- Port Velocity
- Wheel Rate
Additional information provided for:
- Combustion Chamber Volume
- Piston Speed
- Tire Size
Supports larger 4-inch screen on iPhone 5 and iPod touch.
Other minor enhancements and internal improvements. 1.2 09/09/2013 Two new engine calculations:
- Optimum Intake Runner Size
- Peak Torque RPM
Now includes a unit converter!
Added a tire speed rating chart.
Fixed an issue with iOS 5. 1.1 10/20/2011 1.0 12/21/2010
About AutoTech
The company that develops AutoTech is Steve Clarner. The latest version released by its developer is 1.7.
To install AutoTech on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the AutoTech as malware if the download link is broken.
How to install AutoTech on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the AutoTech is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After AutoTech is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.7
posted on 2026-10-14
Version History New Engine Calculation:
- Rod Angularity
Under the hood changes required by advancements in iOS. 1.7 Aug 14 New Suspension Calculations:
- Angle Corrected Spring Rate
- Stacked Spring Rate
Age rating update required by Apple. 1.6 Jan 7 New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)
New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate
Fixed an issue in the Unit Converter where Weight was not being shown as an option. 1.5 04/11/2023 Dark mode support.
New Drivetrain section that includes:
- Axle Speed
- Driveshaft Critical Speed
- Gear Ratio
- Rear Wheel Torque
- RPM After Shift
New Engine Calculations:
- Deck Height Clearance
- Valve Curtain Area
New Density category in Unit Converter. 1.4 08/26/2020 Modernized user interface.
New engine calculation: Supercharger Temperature Gain.
Additional information provided for:
- Brake Mean Effective Pressure
- Effective Drive Ratio
- Equivalent Drive Ratio
- Power Loss at Elevation 1.3 10/15/2016 Four new calculations:
- Aerodynamic Lift-Induced Drag
- Injector Flow Rate
- Port Velocity
- Wheel Rate
Additional information provided for:
- Combustion Chamber Volume
- Piston Speed
- Tire Size
Supports larger 4-inch screen on iPhone 5 and iPod touch.
Other minor enhancements and internal improvements. 1.2 09/09/2013 Two new engine calculations:
- Optimum Intake Runner Size
- Peak Torque RPM
Now includes a unit converter!
Added a tire speed rating chart.
Fixed an issue with iOS 5. 1.1 10/20/2011 1.0 12/21/2010
version 1.6
posted on 2026-07-30
Version History New Suspension Calculations:
- Angle Corrected Spring Rate
- Stacked Spring Rate
Age rating update required by Apple. 1.6 Jan 7 New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)
New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate
Fixed an issue in the Unit Converter where Weight was not being shown as an option. 1.5 04/11/2023 Dark mode support.
New Drivetrain section that includes:
- Axle Speed
- Driveshaft Critical Speed
- Gear Ratio
- Rear Wheel Torque
- RPM After Shift
New Engine Calculations:
- Deck Height Clearance
- Valve Curtain Area
New Density category in Unit Converter. 1.4 08/26/2020 Modernized user interface.
New engine calculation: Supercharger Temperature Gain.
Additional information provided for:
- Brake Mean Effective Pressure
- Effective Drive Ratio
- Equivalent Drive Ratio
- Power Loss at Elevation 1.3 10/15/2016 Four new calculations:
- Aerodynamic Lift-Induced Drag
- Injector Flow Rate
- Port Velocity
- Wheel Rate
Additional information provided for:
- Combustion Chamber Volume
- Piston Speed
- Tire Size
Supports larger 4-inch screen on iPhone 5 and iPod touch.
Other minor enhancements and internal improvements. 1.2 09/09/2013 Two new engine calculations:
- Optimum Intake Runner Size
- Peak Torque RPM
Now includes a unit converter!
Added a tire speed rating chart.
Fixed an issue with iOS 5. 1.1 10/20/2011 1.0 12/21/2010
version 1.6
posted on 2026-01-07
New Suspension Calculations:
- Angle Corrected Spring Rate
- Stacked Spring Rate
Age rating update required by Apple.
version 1.5
posted on 2023-04-11
Apr 11, 2023
Version 1.5
New Drivetrain Calculation:
- RPM (from speed, axle gear ratio, transmission gear ratio, and tire diameter)
New Engine Calculations:
- Valve Spring Open Pressure
- Valve Spring Rate
Fixed an issue in the Unit Converter where Weight was not being shown as an option.
version 1.4
posted on 2020-08-26
Aug 26, 2020 Version 1.4
Dark mode support.
New Drivetrain section that includes:
- Axle Speed
- Driveshaft Critical Speed
- Gear Ratio
- Rear Wheel Torque
- RPM After Shift
New Engine Calculations:
- Deck Height Clearance
- Valve Curtain Area
New Density category in Unit Converter.
version 1.3
posted on 2016-10-15
Oct 15, 2016 Version 1.3
Modernized user interface.
New engine calculation: Supercharger Temperature Gain.
Additional information provided for:
- Brake Mean Effective Pressure
- Effective Drive Ratio
- Equivalent Drive Ratio
- Power Loss at Elevation
version 1.3
posted on 2010-12-22
Disclaimer
Official App Store Link
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