2 stroke porting programs to download

Jun 06, 2017 i feel like i would benefit more from the midhigh porting but i think i remember seeing somewhere that that is geared more towards a and b class racers and would be hard for someone like me to manage. So whether you have a 50cc road bike, a 500cc motocrosser or a classic racer, we will design the perfect exhaust system for you. Bimotion 2stroke software has been commercially available and in professional use since 1991. Each part of the 2stroke cycle can be evaluated and designed with computer software programs. The old adage of stuffing cases on every project just isnt true any more. While twostroke engine development is on the rise again, the worldwide interest in a professional twostroke engine simulation is still limited. Start your service order now with our service order form. Two stroke cylinder porting tips watch this before you. Port matching, porting and trenching twostroke engine cases. Cleaningup the rough edges of the port windows inside of the cylinder bore is really all you need to do to the port windows, as anything further, and youre messing with the port timing keep in mind, were out to build a little twostroke screamer, not make a boat anchor out of your cylinder.

Enthusiasts, tuners, mechanics, gp, drag racing, mx, enduro. 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. Im working on gathering enough parts to build a triple cylinder rd400 and at some point ill need to sort out the porting and exhaust. Porting and polishing twostroke motorcycle engines. Two stroke performance tuning a disc partially cut away and attached to the end of the crankshaft opens and closes an inlet port in the side of the crankcase. Port heights port durations required ranges of port mean areas possible ring flutter rpm mean piston speed suggests carburettor size power meter you input expected bmep value adjust port shapes for target areas in cad window. Download my free calculators spreadsheet to check your computers ability. The twostroke engine is a common power source for small and. The newest info i have is the two stroke tuners handbook by gordon jennings. Those of us who have grown up in the japanese two stroke.

Developed by pedro, with more than 20 000 lines of code, all the knowhow applied to software comes from us and also a lot from the legendary portuguese 2 stroke tuner lufo racing, this software is directed for all 2 stroke. Two stroke design instead you can enter the data of your cylinder with extreme facility and precision, and then analyze the port areas and the timing area in the engine cycle timing for each phase. Hi performance two stroke porting software program youtube. I should also mention that my bike is an 07 yz250 with v. I only have a dremel and was wondering if i could do anything at all myself to my yz125 before i put it together. However, you shouldnt just pick any business that you can find anywhere. The newest info i have is the twostroke tuners handbook by gordon jennings. Great book, but ill guess the world has moved past that info. Rating is available when the video has been rented. My new youtube video on the newest version of porting calculator is at. Pdf port design criteria for 2stroke loop scavenged engines. This program is not a part of mota, but it has been.

Oct 04, 2011 changing the power of 2 stroke engine is really very simple when you know the basic techniques of 2 stroke engines. Cylinder porting tools artco american rotary tools company. Finally, enter the exhaust duration of 184deg and the peak power speed of 12500 revsmin and click the design now button. The cost to convert this program into a full windows program like our dynomation5, fourstroke simulation would prevent it from ever being released. The most common mistake is to choose the wrong combination of engine components, making the engine run worse than stock. I think mota is a good program for the money, but dont think the results from any engine modeling program are carved in stone. 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. You should only rely on the experience of the very best. Take a look at our photo gallery of our range of cnc ported 4 cylinder heads, cnc ported 6 cylinder heads, cnc ported inlet manifolds and cnc cad images. If your looking for a big bore, porting, or a complete motor build we have you covered. Contents chapter 1 introduction 9 chapter 2 the cylinder. Our video section contains several videos of our 5axis cnc porting machine in action. Interest in 2stroke engines has been recently renewed by several.

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 the 4 stroke. I feel like i would benefit more from the midhigh porting but i think i remember seeing somewhere that that is geared more towards a and b class racers and would be hard for someone like me to manage. Scavenging ports optimal design of a twostroke small. Sep 30, 2012 kick ass and take names with this baby software located on the web at this address. Softengine engine simulation software production 2tbase seven software. We shall send you a pdf document with the templates for manufacturing your exhaust. Looking for feedback on the current porting and expansion chamber programs on the market.

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. Purchase with immediate download from digital river. 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. Downloaded from sae international by carlo alberto rinaldini, tuesday, may 17. Kick ass and take names with this baby software located on the web at this address. Edge chamfering and cylinder porting for twostroke engines. It will simulate one of the cylinders of a multicylinder twostroke engine provided that the cylinders are identical in layout and dimensions and each cylinder has a seperate exhaust and induction system. Thank you for your interest in dynomationtwostroke designed for windows98xp. The worlds leading 2stroke engine simulation software for 3. Has any one done any kind of porting or polishing to a 2 stroke cylinder themselves. The website does not intend to compeed with any other website dealing with 2stroke tuning, and the information shared is not at all as thorough as what you can get from reading the books. Bigger carburetors, higher compression ratios, altered port timings and expansion. Changing the power of 2stroke engine is really very simple when you know the basic techniques of 2stroke engines.

Softengine engine simulation software 2tbase seven software. Our many years of 2 stroke engine tuning includes our never ending work in performance cylinder modifications. Newpipe will probably generate an ok pipe but knowlegde, experiance and testing is better. Cylinder porting, a related technique, is designed to improve flow characteristics and promote optimum engine performance. Twostroke waveaction engine simulation motion software. 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. How to tips from tj on porting and polishing 2 strokes. Two stroke performance tuning chapter 3 porting and cylinder scavenging today, when we take a look down the cylinder of a two stroke engine, we find its walls literally filled with ports to handle the induction, transfer and exhaust phases of gas flow through the engine. Software for fine tuning and design of two stroke engine. This project aims to port extex, a high quality typesetting system developed for unix operating system to macintosh os x using fink, a package management this project aims to port extex, a high quality typesetting system developed for unix operating system to macintosh os x using fink, a package management system. Dynomationtwostroke engine simulation motion software, inc. Airgasoline enters the engine from the carburetor at a ratio close to 15. So what i felt and what the program showed me was pretty much in agreement. It enters via the intake port as the piston rises into the crankcase and then is transferred to the combustion area via the transfer ports as the piston descends and the piston top uncovers the.

Note that you do not require a paypal account as you can use your credit card. The piston crown opens and closes the exhaust and transfer ports. With a very versatile selection of tools, the 1082sr kit can also be used to modify 2 strokes above 150 cc and 2 strokes as small as 30 cc of displacement. Free download here this program is not a part of mota, but it has been put together by the same engineers as a starting point for those wishing to begin from scratch. Specialty tools for porting 2 stroke, 4 stroke, cylinders, cylinder heads, 2 stroke case porting, and intakes. Port timing basics airgasoline enters the engine from the carburetor at a ratio close to 15. The trend in high performance two strokes has continued towards more case volume, however each engine and application differ. 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. A myriad of different aftermarket accessories is available for you to custom tune your bike to better suit your needs. The inlet port opens 30 after bdc and closes 79 after tdc. The cost to convert this program into a full windows program like our dynomation5, four stroke simulation would prevent it from ever being released.

Our 1mc, the worlds best know right angle porting tool. This handpiece extends telescopically, adding an extra 3. Those of us who have grown up in the japanese twostroke. After our trial and test, the software was found to be official, secure and free. Cylinder porting, a related technique, is designed to improve flow characteristics and. We now have a simple 2 stroke expansion chamber design program. 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. I should also mention that my bike is an 07 yz250 with vforce 3 reeds, fmf fatty and powercore 2. Software for fine tuning and design of two stroke engine by. Edge chamfering and cylinder porting for twostroke engines edge chamfering is a surface finishing technique that smoothes the edges of cylinder ports so that piston rings seat properly. Two stroke engine and exhaust design software north.

Feb 08, 20 well i have been reminded lately that this is a dirtbike forum where i can ask questions so i figured id give it a shot. In motocross its usually a compromise between best peak hp and good early off the pipe power. Heres how shaving off miniscule ammounts of metal can drastically improve your speed. I liked the bimotion pipe program for calculating port timearea, but use others now. While two stroke engine development is on the rise again, the worldwide interest in a professional two stroke engine simulation is still limited. Softengine dynamometers and engine simulation software. Apr, 2015 has any one done any kind of porting or polishing to a 2 stroke cylinder themselves. Porting tool ah9018332pt works great on most 100cc engines and larger. Our services include cad design, 5axis cnc porting, engine building and dyno testing. Bimotion 2 stroke software has been commercially available and in professional use since 1991. Each intake port can be locked to a fixed timing relation with the exhaust port. Basic 2 stroke tuning changing the power band of your dirt bike engine is simple when you know the basics. Developed by pedro, with more than 20 000 lines of code, all the knowhow applied to software comes from us and also a lot from the legendary portuguese 2stroke tuner lufo racing, this software is directed for all 2stroke.

Purchase the porting tools you need at our online store. Mspec twostroke performance services millennium tech. See more of 2 stroke design calculators on facebook. This is a 2 stroke porting and polishing kit designed for 2 stroke cylinders in the 150 cc to 35 cc range. Improve the performance of your twostroke engine with a torqsoft designed exhaust system. For port work, one company that will help you is 2strokeporting. The morbidelli 125 twin road racer is a rotary valve engine. If you are aiming for these qualities, modifying your 2 stroke engine is a great strategy. Since modifying the 2stroke engines require not only a big. Porting and polishing two stroke motorcycle engines. Artco tools carries a great selection of cylinder porting tools including porting tools, porting abrasives, carbide burs, and more.

This expansion chamber is not the product of simple correlations as for other products that abound on the web, but an automatic design created by mota which is a full wave action 2 stroke engine simulator. Jun 24, 2007 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 the 4 stroke. Edge chamfering and cylinder porting for two stroke engines edge chamfering is a surface finishing technique that smoothes the edges of cylinder ports so that piston rings seat properly. Determine the level of porting you wish to achieve before you start cutting or grinding. 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.

Next enter the cylinder bore and stroke which are 40. If you are aiming for these qualities, modifying your 2stroke engine is a great strategy. Here is the official description for 2 stroke wizard tuned pipe. Purchase with immediate download from digital river, shareit.