2 stroke pipe software

Mota will accept a singlecylinder design, which will also cater for many multis where 2, 3 or more cylinders of the same basic layout are repeated. Bike is the cobra cx50 motocross bike with large bore cylinder and an extended swinging arm. News and changes to the website are posted here, as well as questions and issues regarding the usage of e2s. The exhaust port opens and combustion gas starts down the pipe at supersonic speeds. Oct 04, 2011 changing the power of 2 stroke engine 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. Dec 17, 2019 what was your initial experience 2 stroke wizard tuned pipe software download 2 stroke wizard tuned pipe pro version 2.

The basic principle of the tuned pipe is making use of the moving air masses in the exhaust to assist in the scavenging the process whereby the exhaust gases are removed and replaced with unburnt mixture of a 2 stroke engine. Show your love for twostrokes and order yours today. Small values of kh are best suited to grand prix engines with narrow power bands, larger. Below are notes on my free spreadsheet of free 2 stroke calculators. A complete two stroke pipe has properly tuned header, convergent, belly, divergent and stinger sectionsa difficult process. You could create a hardcopy of the program window, though, using your.

Everyone knows at this point that if you are a 2stroke owner, you need to be running an after market exhaust system to make more bottom and top end power. A simple 3 stage two stroke exhaust calculator based on formulas of g. 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. The exhaust pipe works because of the pressure waves generated when the exhaust valve opens.

Freeware 2 stroke expansion chamber exhaust calculator program. Near the end you will be presented with the latest and best software for design and analysis of 2 stroke pipes. On four stroke racing bikes that pipe could be a long straight pipe or a short header pipe and a megaphone. This small java applet uses design rules according to, and, to size a tuned pipe for a 2 stroke piston engine.

Torqsoft twostroke exhaust system designer programme. Assign fixed relationships between transfers and exhaust port. Scalvini 2 stroke 4life tee shirt this tee shirt is made from a cottonpolyester blend and features the scalvini logo on the front plus logos on left and right sleeves. This project required a specially designed pipe due to the lack of ground clearance. The calculations are assuming a speed of sound in the exhaust gas, which is not known exactly. Since modifying the 2 stroke engines require not only a big budget in funding but also modification strategies. Checking fitup of new pipe notice pipe is only tacked at this stage welding of front pipe 74cc cobra drag bike. Looks great rides great great price and looks fantastic on the bike. The cylinder pressure drops, and the fresh charge transfers thru the transfer ports, over the top of the piston, and out the. You can also save and load the data by using the provided functions.

This coefficient kh is called the horn coefficient, with typical values between one and two. As the forces in a two stroke pipe design have become more wellunderstood, designers have been able to create engines that take more advantage of them and in fact require an expansion chamber to run at all. I had been riding for decades but didnt know zilch about how 2 strokes worked until. How to plot two stroke expansion chamber cones on paper from. Free 2 stroke expansion chamber calculator software update. Engine swaps, custom 2 stroke builds, fabrication and welding. The trend in high performance two strokes has continued towards more case volume, however each engine and application differ. How twostroke expansion chambers work, and why you should care. Now tab down the diameter 2 column entering the numbers 70, 100, 120, 120 and 22.

To achieve high bmep numbers, all parts of the 2stroke cycles must be optimized. The official home page of our 2 stroke wizard tuned pipe. Im certainly no expert in two stroke exhaust but my understanding of the principles involved it really boils down to accoustic resonance. Two stroke cylinder porting tips watch this before you start cutting. The businesses and individuals that purchased the original dynomation 2 stroke program were pleased with the capability and accuracy of the software. Using the mouse move across to diameter 2 and enter 50. I dont have access to a 2 stroke engine simulation program. The old adage of stuffing cases on every project just isnt true any more. 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.

But because of the limited worldwide activity in two stroke engine development, program sales were limited and further development was curtailed. Test your own theories on porting and exhaust pipe design. Next move to the section box and enter 6 for number of sections this pipe has a 3 stage diffuser. Bmep hp x 6500 l x rpm 2 stroke l engine size in liters. Two stroke engine and exhaust design software north. After our trial and test, the software was found to be official, secure and free.

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. We also have a simple 2stroke expansion chamber design program. In motocross its usually a compromise between best peak hp and good early off the pipe power. Question asked by jeger kongen on jan 31, 2019 latest reply on feb 1, 2019 by ruben rodolfo balderrama. Scalvini pipes usa products handcrafted italian pipes. Custom pipe guard fabrication is available for all models. The way a two stroke motor works causes them to be f. A tuned pipe is made of between 3 and 4 characteristic sections depending on the desired effect. Engineering acousticssonic supercharging of 2 stroke engines.

Calculates port heights from durations, or durations from port heights. There are many ways to boost the power, one of which is by installing a tuned pipe. This will get you started by providing, for your engine, the dimensions of an expansion chamber with a 2 stage or 3stage diffuser. Racingsm software for 2stroke development, also for 4strokes in some modules, create 2t exhaust, create 2stroke exhaust. Available in a full range of sizes for kids and adults. Bigger carburetors, higher compression ratios, altered port timings and expansion. For a 2 stroke engine the tuned pipe is the section of the exhaust system that begins at the exhaust port and ends at the end of the converging section. Racingsm software has features for many different areas 2 stroke exhausts development, drag racing features, simulators, carburetor tuning, connectingrod analysis etc with all this knowhow along with lufo racing heritage, we believe this is a very fair price. This is because four cylinder engines have a 180 crank, whereas virutally all v8s have a 90 crank the angle between the crankpins and so the order in which the exhaust pulses come down the pipes is different. Please dont dismiss this page as just another regurgitation of common knowledge. Bsa bantams only have three gears and thus the exhaust design had to give a wide power band. Racingsm software 2stroke exhaust calculator lufo youtube.

Mota software, 2 stroke engine simulation software, 2 stroke exhaust design. We also have a simple 2 stroke expansion chamber design program. My professional 2 stroke expansion chamber design software is more sophisticated than other programs that only use a few basic formulas. Jul 25, 2007 exhaust pipe design with cone layout software by paul crowe if you have ever tried to layout a conic section on sheet metal, cutting just the right piece, that when rolled over and joined on edge, you have a cone with the exact shape, size and angled openings desired, you know its not easy. They are so simple and fun that ive always enjoyed tinkering with them. The result was 25hp at the rear wheel with the engine coming on the pipe at 7000 revsmin and producing usefull power to 1 revsmin using the original cast iron 125cc cylinder. This site contains both well known pipe info and details never before discussed. Here is the official description for 2 stroke wizard tuned pipe.