2TExc - 2T Exhaust Calculator
In-app purchases
10+
Downloads
Everyone
info
About this app
2TExc β The ultimate 2-stroke app for expansion chambers, exhaust design, port timing, intake resonance, gear ratios, and engine tuning. Optimize every aspect of your 2T engine, from mopeds to motorcycles, go-karts, and race engines.
π§ Key Features:
1. Exhaust Calculator β Calculate full expansion chamber geometry: pipe lengths, diameters, diffuser and reflector cone angles, 1-stage and 3-stage designs. Tune exhaust waves and resonance precisely.
2. Cone Designer β Design and build all angled elements of the exhaust: reflector cones, diffuser cones, and headers.
3. Reverse Exhaust Calculator β Reverse engineer your exhaust system from geometry to resonance RPM, chamber volume, angles, and ratios. Verify designs and optimize performance.
4. Exhaust Gas Speed Calculator: Find out the exact speed of the exhaust pulse waves via proven gas equations and varying temperatures.
5. Port Timing Calculator β Calculate exact exhaust, transfer, boost, and intake timings to shape your powerband, torque curve, and peak RPM.
6. Intake Resonances Calculator β Optimize airflow and cylinder filling; match intake pulses with exhaust harmonics for peak efficiency and calculate the optimal boost bottle for your engine.
7. Gear Ratio Calculator β Determine ideal transmission steps for smooth RPM transitions and desired speed or top-end performance.
Multi-language support (English & German)
Clean, intuitive interface with instant results β no ads or distractions
100% offline functionality
π οΈ Why 2TExc?
Based on proven 2-stroke formulas and real-world results
Covers full tuning workflow: exhaust (standard & reverse), cone design, port timing, intake, gear ratios, and engine setup
Perfect for tuners, racers, mechanics, and enthusiasts seeking max performance and reliability
Download 2TExc now β and tune your 2-stroke like a pro!
π§ Key Features:
1. Exhaust Calculator β Calculate full expansion chamber geometry: pipe lengths, diameters, diffuser and reflector cone angles, 1-stage and 3-stage designs. Tune exhaust waves and resonance precisely.
2. Cone Designer β Design and build all angled elements of the exhaust: reflector cones, diffuser cones, and headers.
3. Reverse Exhaust Calculator β Reverse engineer your exhaust system from geometry to resonance RPM, chamber volume, angles, and ratios. Verify designs and optimize performance.
4. Exhaust Gas Speed Calculator: Find out the exact speed of the exhaust pulse waves via proven gas equations and varying temperatures.
5. Port Timing Calculator β Calculate exact exhaust, transfer, boost, and intake timings to shape your powerband, torque curve, and peak RPM.
6. Intake Resonances Calculator β Optimize airflow and cylinder filling; match intake pulses with exhaust harmonics for peak efficiency and calculate the optimal boost bottle for your engine.
7. Gear Ratio Calculator β Determine ideal transmission steps for smooth RPM transitions and desired speed or top-end performance.
Multi-language support (English & German)
Clean, intuitive interface with instant results β no ads or distractions
100% offline functionality
π οΈ Why 2TExc?
Based on proven 2-stroke formulas and real-world results
Covers full tuning workflow: exhaust (standard & reverse), cone design, port timing, intake, gear ratios, and engine setup
Perfect for tuners, racers, mechanics, and enthusiasts seeking max performance and reliability
Download 2TExc now β and tune your 2-stroke like a pro!
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No data shared with third parties
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Whatβs new
IMPORTANT NEWS:
β’ In-App Purchases are now fully functional β all tabs and modules of the 2TExc Suite can be unlocked reliably
β’ Centralized purchase initialization fixes previous purchase issues and ensures proper restore behavior
β’ Additional useful result values added
β’ UI improvements and minor bug fixes
β’ In-App Purchases are now fully functional β all tabs and modules of the 2TExc Suite can be unlocked reliably
β’ Centralized purchase initialization fixes previous purchase issues and ensures proper restore behavior
β’ Additional useful result values added
β’ UI improvements and minor bug fixes
App support
About the developer
Christian Schubert
creative-media@gmx.ch
Abendweg 1
6006 Luzern
Switzerland