2 Stroke exhaust calculator

Name: 2 Stroke exhaust calculator
Rating: 4 (296 reviews)
Author: 2Stroke Tech

By: 2Stroke Tech App

A simple 3 stage two stroke exhaust calculator

This app was removed from Google Play Store on 2025-01-05

Overview

Removed

Downloads

51,111

Data as of 2025-01-05

Rating:

4.00

(296)

Version:

1.2

Last updated: 2011-11-05

Features & Capabilities

A simple 3 stage two stroke exhaust calculator based on formulas of G.P. Blair from the book: The Design & Simulation of Two Strokes.
You can also save and load the data by using the provided functions.

Note:
This coefficient Kh is called the horn coefficient, with typical values between one and two. Small values of Kh are best suited to Grand Prix engines with narrow power bands, larger values are for wider more flexible engines.

User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

1.2 Last updated: 2011-11-05

Version code:

Creation date:

2011-10-27

Permissions:

android.permission.READ_EXTERNAL_STORAGE High risk
android.permission.WRITE_EXTERNAL_STORAGE High risk

Size:

131.87KB

Email:

bi*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2025-01-05

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

2Stroke Tech

Google Play Store

https://play.google.com/store/apps/details?id=exhaust.calc

Email:

bi*****@gmail.com

Website:

http://www.2stroketech.uk

User Reviews

Pros

Brilliant and simple to use, effective for designing exhausts.
Can be used for various engine types, including reed and piston port induction motors.
Helps users make their first exhausts and offers valuable insights.
Provides a starting point for exhaust calculations, beneficial for beginners.

Cons

Confusion over measurement units (mm vs inches).
Does not support decimals in some calculation fields.
Lacks detailed information on specific calculations like transfer timing and coefficients.
Issues with the calculated dimensions not aligning with expectations for certain engine sizes.

Recent reviews

Hi, i am having trouble using the calculator. No matter what i try, the calculated i.d is wrong (header pipe i.d is larger than the belly i.d, etc). Do i enter my port messurments in Millimeters or inch, etc? Engine is a "66cc" motorised bicycle engine. Cheers.

da*****, 2022-11-22

This app is simply brilliant, and brilliantly simple. I have used this app with tremendous success to design and fabricate over a dozen exhausts for both reed and piston port induction motors. I overcome the issue of not being able to work transfer timing into the design by working backwards; choose an exhaust duration that suits the rpm/target hp, then select transfer timing to suit from one of A Graham Bells graphs, adjust the ports and build the pipe. Trust me, it works!