2 stroke engine porting software free

Two stroke cylinder porting tips watch this before you start cutting. If you are aiming for these qualities, modifying your 2stroke engine is. If you are aiming for these qualities, modifying your 2stroke engine is a great strategy. Pipes, silencers, carburetors, reeds and valves are all popular bolton modifications. Freeware 2 stroke expansion chamber exhaust calculator program.

This is in contrast to a fourstroke engine, which requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. Aussie twostroke engine invention motorbike writer. I havent used them, but have read quite a bit on themprobably far more involved than the average 2 stroke porting dude would need best thing to do would be to read some tech articles online about porting. The businesses and individuals that purchased the original dynomation 2 stroke program were pleased with the capability and accuracy of the software. At the moment, we have a special 2 stroke bike collection. Calculates port heights from durations, or durations from port heights. Looking to find an experienced and reliable person to upgrade the performance of my honda mr175. You can choose to have the program calculate either required port height adjustments, or port durations. Changing the power of 2stroke engine is really very simple when you know the basic techniques of 2stroke engines. You should only rely on the experience of the very best. Crankcase and cylinder porting is probably the most controversial subject among performance 2 stroke engine builders. We use computer design software to maximize power and torque at any elevation.

Diy moto fix website rebuild your dirt bike engine. Scavenging ports optimal design of a twostroke small. Heres how shaving off miniscule ammounts of metal can drastically improve your speed. I see a lot of people asking questions about porting feel free to add to this thread all you fellow modders first things first here you got to understand how 2 stroke engines operate just because you. Rk tek uses the latest in 2 stroke design and simulation software, coupled with, practical knowledge that can only be gained through experience and trial and error, to properly modify any engine. Now, you can either be satisfied with everything at this point, or, you can choose to get more detailed and do some more indepth porting. This is the third of a series of videos on the topic of 2 stroke engine ports. If you keep your compression high and do not go crazy on your exhaust timing, you can get plenty of torque out of a chainsaw engine for its displacement. Millions of fluid and thermodynamic calculations are made by mota representing the conditions inside your twostroke engine throughout its complete operating cycle. Dynomationtwostroke engine simulation motion software, inc. Those of us who have grown up in the japanese twostroke. The worlds leading 2stroke engine simulation software for 3. Test your own theories on porting and exhaust pipe design. Careful care must be taken to assure that engine will not end up making less power then it did before the engine porting was done.

Service masterlist for 2 strokes finish line engines. Millennium technologies provides repair and maintenance services for cylinders and cylinder heads, and manufactures nickel silicon carbide plated cylinders for a variety of engines, including motorcycles, snowmobiles, race cars, karts, dirt bikes and watercraft. Using our flow bench, dynomometer, and advanced computer simulation software along with hard work and testing, we offer industry leading performance. The software does complete cycle simulation of the whole internal combustion process including the gasdynamics in the pipesducts, ports and plenums air boxes, boost bottles, exhaust boxes etc. The ports found within a twostroke cylinder in combination with the exhaust. The description of two stroke engine porting zmod this software made for help out team in first time, but some friend advise this is the time to share. Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve quantity of the air flow. In motocross its usually a compromise between best peak hp and good early off the pipe power. Stock engine parameters are entered on the top row of controls. Does anyone have any recommendations for individuals or companies the will do porting on vintage 2stroke engines. How to tips from tj on porting and polishing 2 strokes. Determine the level of porting you wish to achieve before you start cutting or grinding. It will simulate one of the cylinders of a multicylinder two stroke engine provided that the cylinders are identical in layout and dimensions and each cylinder has a seperate exhaust and induction system. No previous knowledge of the twostroke cycle engine is required just input the required data and then run mota to set in motion this powerful process.

This toolkit offers some basic two stroke engine calculators in hand but also extends to some advanced as well tuning menu. Has any one done any kind of porting or polishing to a 2 stroke cylinder themselves. Graham bell is an acknowledged expert on engine tuning, with many years experience in this field. So whether you have a 50cc road bike, a 500cc motocrosser or a classic racer, we will design the perfect exhaust system for you. Have the specifications for the porting in hand just need an expert to do the job. I didnt mess around with the porting yet, but a good port job combined with a tuned pipe work far better than just a tuned pipe by itself. Everything you need to know about the twostroke cylinder. Here is the official description for 2 stroke wizard tuned pipe. Cylinder heads, as manufactured, are usually suboptimal for racing applications due to design and are made for maximum durability hence the thickness of the walls. The inlet portpassage delivers air into the engines crankcase, most. The following are spreadsheets for different aspects of 2 stroke designmodification. Two stroke tuners handbook 2 another mistake commonly made, sometimes even by those who have enjoyed some success in modifying twostroke engines, is to believe in a kind of mechanistic magic. Four stroke porting and performance finding reliable, quality power you can feel on modern four strokes is very challenging.

After all of this is done, you have successfully matched your engines ports. Our goal is to achieve the biggest power gains as possible, while maintaining reliability on your 2stroke engine. An engine port is an open window in the cylinder wall for the intake or exhaust of fuel mixture airgas. What you have accomplished up to this point will definitely allow your engine to run smoother, stronger, and more efficient. Mota and its related set of programs have been developed to simulate the performance of highoutput single cylinder two stroke engines.

The other is how air density barometric pressure, temp, humidity, and elevation change, affects horsepower. Below the stock engine parameters are displays for input and output of porting information. Purchase the porting tools you need at our online store. Using apkpure app to upgrade two stroke engine porting zmod, fast, free and save your internet data. After our trial and test, the software was found to be official, secure and free. Assign fixed relationships between transfers and exhaust port. Every 2 stroke engine is different in what can be done to make more hp, since this thread is about porting will try to focus on just that aspect. Most of the errors is to choose a less appropriate combination of engine components so that the engine actually ran worse than standart, ever experienced. These are the files that can function manually without using macros by using open office. Another quick note on 2 strokes you can change the dynamics and power of a 2 stroke engine a lot just with simple porting. I only have a dremel and was wondering if i could do anything at all myself to my yz125 before i put it together.

My porting setup affordable and functional 2 stroke tuning. A twostroke or twocycle engine is a type of internal combustion engine which completes a power cycle with two strokes up and down movements of the piston during only one crankshaft revolution. From a 49cc racing engine, to a gp 125 engine, or a 1500 mercurial triple engine, or a 250 kart engine, racingsm software suits all. Part of the problem is understanding the pulse or charge nature of the airflow in a 2 stroke engine. Bigger carburetors, higher compression ratios, altered port.

Part of the problem is understanding the pulse or charge nature of the airflow in a 2stroke engine. We shall send you a pdf document with the templates for manufacturing your exhaust. My name is ed erlenbach, im a private tuner specializing in yamaha rd and tz performance in southern california. All engine development is done exclusively with tsr twostroke racing engine design software and. Two stroke engine porting zmod for android apk download.

We have the optimum case modifications to suit each application and engine developed over countless hours. I was reading a thread about a 2 stroke versus a 4 stroke and it occurred to me that if the porting, or timing, of a 2 stroke could be changed, that maybe its maximum torque range could be lowered to an rpm comparable to the 4 stroke, and thus swing the same prop as. But because of the limited worldwide activity in twostroke engine development, program sales were limited and further development was curtailed. Mota software, 2 stroke engine simulation software, 2 stroke exhaust design mota and the new motax. The twostroke engine is a common power source for small and.

Performance porting of vintage 2strokes vintage dirt. However, you shouldnt just pick any business that you can find anywhere. Two stroke cylinder porting tips watch this before you. For 4t the free lotus singlecylinder engine simulation is supposed to be quite good but like engmod it wants a. Position the red slide switch, located to the left of the displays, in line with. Doing the finishing touches on the spx cylinder and wanted to give you a quick tour of my porting setup. For port work, one company that will help you is 2strokeporting. Two stroke performance tuning chapter 3 porting and cylinder scavenging today, when we take a look down the cylinder of a twostroke engine, we find its walls literally filled with ports to handle the induction, transfer and exhaust phases of gas flow through the engine.

Crankcase and cylinder porting is probably the most controversial subject among performance 2stroke engine builders. Since modifying the 2stroke engines require not only a big. Improve the performance of your twostroke engine with a torqsoft designed exhaust system. Port matching, porting and trenching twostroke engine cases. There is one or more forwardlocated exhaust ports, two or more side transfer ports, and one rear intake port. Two stroke engine and exhaust design software north. Everything 2 stroke big bore kits porting engine rebuilds. The application of the simplest singlezone singlephase model is the. There is no 2stroke displacement limit for our software, for example you can have a 125, 250, 500, 700 singlecylinder and our modules will work flawlessly. Many things will affect the power delivery of twostroke motorcycle engines. Porting and polishing twostroke motorcycle engines. Port matching, porting and trenching two stroke engine cases. Other books to his credit are modern engine tuning, twostroke performance tuning and forced induction performance tuning.