Prestwich UK

For all Zenoah 22 to 26cc including, goped, marine, helicopter, model aircraft, car.
Also suitable for Sikk and CY engines
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ETP5  ENGINE TUNING PROGRAM for all  Zenoah 22 to 26 cc marine, car, heli and goped engines.  

   The program kit is split into 2 parts: firstly, text and pictures with a full and easy to follow explanation about what is needed to modify an engine to make more power, and secondly, the computer program which allows you to find the exhaust, transfer and induction timings (opening, closing and total duration) using simple measurements from the engine.  The computer program shows many other things too, such as compression ratio, trapped compression ratio, blowdown and allows you to input different deck heights and base gasket thicknesses and then see the difference in compression ratios and port timings.. 
    Modifying an engine to have more power AND have good throttling and torque is not easy, but this program will help you do just that.  It allows you to log all the port timings from your engine, based on easy measurements that take just a few minutes to complete. Once this information is logged into the program, the port timings etc. are displayed and then you can follow the detailed text showing what can be done to improve the engine. 

 This program is suitable for experts and beginners. A valuable timesaver for the expert and very easy to use for the less expert engine modifier.

The ETP5 ZENOAH program is unique in that it allows the port timings to be measured from the base of the cylinder.  Normally, measuring some of the port timings and trapped compression ratio on these fixed head engines is relatively difficult, but with this program, the port timings and compression ratio can be found very quickly and accurately, and more importantly when the engine is being modified, the port timings and trapped compression ratio can be found without reassembling the engine, allowing accurate timing changes to be made in a very short time.


1. Software and detailed instructions on how to use it. Step by step instructions including diagrams and pictures of the methods used for measuring the port timings and compression ratio of your engine. A degree wheel is not needed.  You need to input some basic engine dimensions and simple measurements taken from the base of the cylinder, and then the software calculates and lists exhaust, transfer, induction port duration, blowdown, geometric and trapped compression ratio. The program shows the effect on port timings and compression ratio of changing the exhaust timing and after removing or adding base gaskets and/or machining the cylinder base.

2.  Complete kit of parts for measuring head volume, and parts needed to show squish clearance.

3.  Full instructions on how to modify your engine for more power and/or better throttling. 

4.  Full instructions on how to fix that engine you have modified and which now doesn't want to throttle or pull away from the shore! 

5. Full backup with any questions answered within 24 hours.

6. Buyers will be registered and will receive free updates via email as they are available.

7. To get you started, there is a standard and a modified engine shown in the data.

ETP2 ENGINE TUNING PROGRAM FOR MODEL GLOWPLUG ENGINES. (nitro engines)   ETP2    ETP2    35.00 GBP  post free to anywhere in the wold.
ETP5 SPECIAL ENGINE TUNING PROGRAM FOR ZENOAH, Sikk, RCMK  ENGINES.  Zenoah Program    35.00 GBP  post free to anywhere in the world.
zenoah twostroke tuning software



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