CR Calculator

2.2.3

HRTuning.com

2.78

282 reviews

50,000+
Downloads

Free

Compression Calculator for B,D,F/H,K-Series Engines

About CR Calculator

CR Calculator is a tools app developed by HRTuning.com.

Download Statistics

CR Calculator has been downloaded 59 thousand times. In the last 30 days, the app was downloaded 0 times.

User Ratings

CR Calculator is rated 2.78 out of 5 stars. The rating is based on 280 ratings.

App Information

CR Calculator is FREE to download. The APK download size is 6.48 MB. The latest version available is 2.2.3. The last update was on July 27, 2025.

Technical Requirements

CR Calculator requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2011.

Description

B-, D-, F/H- and K-Series Engine Compression Calculator. Recent changes: Android update

More data about CR Calculator

Price	Free to download
Total downloads	59 thousand
Recent downloads	0
Rating	2.78 based on 280 ratings
Ranking	Not ranked
Version	2.2.3
APK size	6.47 MB
Number of libraries	5
Designed for Android	4.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the CR Calculator app

CR Calculator compared with similar apps

Common keywords of similar apps

Compression Series Calculator

Keywords missing from this app

Scientific App Calculations Functions Simple Math Basic Converter Calculate Advanced Pro Currency Calculation Unit Calculators Complex User Features Engineering Support Tool Time Density Easy Perfect Conversions Solve Number Metric Volume Equation Engineers Recent Perform Convert Pressure Solver Addition Trigonometric Problems Oil Students Units Currencies Interface Operations Results Feature Free

Google Play Rating history and histogram

120

Downloads over time

CR Calculator has been downloaded 59 thousand times. Over the past 30 days, it has been downloaded 0 times.

Changelog of CR Calculator

Jul 27, 2025UpdateVersion 2.2.3
Oct 31, 2022UpdateVersion 2.2.1
Jan 27, 2018UpdateVersion 2.2
Jan 18, 2018UpdateVersion 1.0
Jun 4, 2017Installs50,000+ installs
Jun 24, 2012Installs10,000+ installs
Jan 7, 2012Installs5,000+ installs
Oct 23, 2011UpdateVersion 1.2
Oct 16, 2011Installs1,000+ installs
Oct 9, 2011Installs500+ installs
Sep 29, 2011Installs100+ installs
Sep 24, 2011New AppVersion 1.0 in Tools for Free

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Developer information for HRTuning.com

HRTuning.com

peter@hrtuning.com

Website

N/A

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Comments on CR Calculator for Android

★★★★★ Great app only one problem It won't let put in a negative number for piston dome. Fix that and it is a five star!

★★★★★ Include more F series tech Please update with more sohc F series like the F18 and sohc F20 stroke, rods, pistons etc. and the option to use USDM and JDM spec K20 pistons in F series would be nice.

★★★★★ It made me blow my motor! No not really. I like it and use quite often. Works well, and makes for easy showing to customers what to put in their engines.

★★☆☆☆ Incorrect information It claims a stock ls is 9.6:1? Ha ha ha couldn't be more wrong. Maybe with a hotter piston and some decking/milling. It contradicts information given in one of his other apps. Fix it or take it off the market please

★★☆☆☆ Hmm First use, changed a gasget thickness on a b series... Software quit.

★★☆☆☆ Needs fix Cannot manually make a negative dome volume for the pistons. This throws the compression way off. Will rate higher once fixed. EVO.

Google Play Rankings for CR Calculator

This app is not ranked

Technologies used by CR Calculator

CR Calculator is requesting 10 permissions and is using 6 libraries.

Permissions

Network communication

view network connections, full network access

System tools

prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, android.permission.ACCESS_ADSERVICES_TOPICS, android.permission.FOREGROUND_SERVICE, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.google.android.gms.permission.AD_ID, com.linszter.hondacompcalc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Ad network libraries

AdMob

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components Firebase Android Library Icon

Firebase

Google Cloud Messaging (GCM)

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