2 stroke pipe building software

Bills pipes has long been synonymous with 2strokes. As the forces in a twostroke 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. After our trial and test, the software was found to be official, secure and free. There is software out there that will help you immensely with your. I have a few different 450 silencers, ill probably use one of those.

Pipe has been designed to peak engine at 12,000 revsmin with excellent over rev to,000 revsmin. We offer twostroke exhaust for all of the popular motorcycles and atvs. The pipe on our tuned 2strokes is gradually expanding in diameter from the engine to the point where it enters the muffler. Mota software, 2 stroke engine simulation software, 2 stroke exhaust design.

Years later, even into the 4stroke era, that hasnt changed. Question asked by jeger kongen on jan 31, 2019 latest reply on feb 1, 2019 by ruben rodolfo balderrama. The mathematical basis for the calculations of the return waves in eccalc an example of pipe analysis and redesign pipes built using this method my video showing how to make a pipe by hand how eccalc agrees with the real life exhaust pressure graphs from blair four examples showing how accurate eccalc is compared to dyno graphs. Test your own theories on porting and exhaust pipe design. Building a custom 2 stroke muffler step 3 duration. 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. 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. Defining the acoustic profile and influencing the powerband exhaust design is a more dynamic science than stringing together a few pipes and tacking on some mufflers. A tuned pipe is made of between 3 and 4 characteristic sections depending on the desired effect. The official home page of our 2 stroke wizard tuned pipe. Racingsm software for 2stroke development, also for 4strokes in some modules, create 2t exhaust, create 2stroke exhaust.

Engine pulls extremely strong from 8,000 revmin resulting in a very flexible power band. Calculates port heights from durations, or durations from port heights. Engine swaps, custom 2stroke builds, fabrication and welding. Two stroke designmodification software the following are spreadsheets for different aspects of 2 stroke designmodification. Processors with a lower number of cores will run the motax expansion chamber optimiser, as will the latest. There are pipes and silencers for racing, recreation, quiet riding and even usfs approved spark arrestors. Everything2stroke forum since 2004 a forum community dedicated to all 2 stroke engine vehicle owners and enthusiasts. Two stroke engine and exhaust design software post by gerrit. Engineering acousticssonic supercharging of 2 stroke. The legendary championshipwinning performance and build quality of the mx2 pipe is unrivaled and is designed to give you every bit of horsepower and torque gains imaginable. New version of 2t exhaust calculator it is a freeware 2 stroke expansion chamber exhaust calculator program download at. There are many ways to boost the power, one of which is by installing a tuned pipe.

Cobra drag bike with rider eric edwards jnr 20 tm85 motocross bike. Assign fixed relationships between transfers and exhaust port. Racingsm software has some specific modules that can help tunersbuilders on their race enginesbikes in order to improve performance and reduce lap times. Pipe has been designed to peak engine at,200 revsmin. Twopipe originated 50 or 60 years ago as a costeffective way to add air conditioning. Making a 2 stroke pipe for the rs100 fabricating and welding cones js garage duration. Split your calculated 2stroke exhaust up to 42 sections with regular length or even more with irregular lengths. Our heads cool the piston better, prevent detonation, and. While moving downwards after ignition, the piston exposes the exhaust opening, and the burned gas streams into the exhaust pipe like a high pressure shock wave. Racingsm software 2stroke exhaust calculator lufo youtube. Two stroke engine and exhaust design software north.

Fusion one home l about fusion one l fusion one services l. Npp neils power pipes handcrafted custom pipes and. This small java applet uses design rules according to, and, to size a tuned pipe for a 2 stroke piston engine. There are a multitude of variables and their effects on the individual powerband targets to be analyzed and considered. My professional 2 stroke expansion chamber design software is more sophisticated than other programs that only use a few basic formulas. The cylinder pressure drops, and the fresh charge transfers thru the transfer ports, over the top of the piston, and out the. Why do twostroke engine exhaust pipes look so strange.

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. But because of the limited worldwide activity in twostroke engine development, program sales were limited and further development was curtailed. 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 2stroke engine. The next link will go over some basic principles behind the goal of. 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. How to bend a conetwo stroke pipe model solidworks forums. 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. The high performance 2stroke engine is a pulse resonance engine which means that the operation in general and the. The calculations are assuming a speed of sound in the exhaust gas, which is not known exactly. Is looking pretty good on the nicer areas but i cant get rid of the ugly rusted stuff near the exhaust flange close to the head where the pipe turns. News and changes to the website are posted here, as well as questions and issues regarding the usage of e2s. There is this nice animation of a 2stroke engine with an expansion chamber.

New feature of racingsm software, the 2stroke exhaust segment splitter. Next move to the section box and enter 6 for number of sections this pipe has a 3 stage diffuser. They are so simple and fun that ive always enjoyed tinkering with them. A 2pipe hvac system is one that uses the same piping alternately for hot water heating and chilled water cooling, as opposed to a 4pipe system that uses separate lines for hot and chilled water. I have been trying to polish my fmf pipe using steel wool and chrome mothers polish. We also weld repair all titanium headers and slipons. I guess 2stroke exhaust system design is all about tradeoffs, and i think for woods riding it may be better to lose unburnt charge out the tailpipe at high rpm longer pipe then push burnt gases back into the motor at low rpm shorter, but thats just my totally nonexpert opinion. Come join the discussion about your favorite engines performance, classifieds, troubleshooting, maintenance, and more. Four strokes are the future of performance in motor sports. Torqsoft twostroke exhaust system designer programme. Custom pipe guard fabrication is available for all models. You can also save and load the data by using the provided functions.

We use computer design software to maximize power and torque at any elevation. There are a multitude of designs and endless combinations that can be made to work well. That shape is an important part of the exhaust tuning. We test tirelessly to provide a head arrangement with the proper squish band width, clearance, bowl shape and volume to suit each individual combination.

Im building a little street legal 30s style hillclimber out of a 73 dt1250. Free 2 stroke expansion chamber calculator software update. Using the mouse move across to diameter 2 and enter 50. Those of us who have grown up in the japanese twostroke. This pipe design is then verified on our inhouse dynamometer, fit to your particular chassis using the method of sectioned cones, which results in a final product that has a unique works look. The shape of the exhaust pipe is not simply that of a constant diameter pipe, such as on a 4stroke engine. Great tool for those who are building exquisite format exhausts, one of the largest benefits of this module is that it can be used with any exhaust formula results. The businesses and individuals that purchased the original dynomation 2 stroke program were pleased with the capability and accuracy of the software. Wrt1d1x2sw where wrt1 is the wave return time for the first part of the wave, d1 is the distance from cylinder port to beginning of diffuser, and sw is the speed of the wave which is determined by the temperature and. I tried sanding it down but ended up with pitted surfaces and. Forum to provide in depth discussion on various 2stroke related topics that are not specific to one particular.

A performance exhaust system is a characterizing element for any internal combustion conveyance. The exhaust port opens and combustion gas starts down the pipe at supersonic speeds. A simple 3 stage two stroke exhaust calculator based on formulas of g. Small values of kh are best suited to grand prix engines with narrow power bands, larger. Pro circuit has built a reputation around our exhaust systems. Here is the official description for 2 stroke wizard tuned pipe. The stock pipe is basically a straight pipe anyway but i want to pit a straight pipe on it with a new school silencer on it. Our goal is to achieve the biggest power gains as possible, while maintaining reliability on your 2stroke engine. Hello, im trying to make a two stroke cone pipe exhaust, but cant seem to figure out how to do it. It is shaped like an elongated cone when viewed from the side. This first link will discuss terms and the 2 stroke cycle.

A complete twostroke pipe has properly tuned header, convergent, belly, divergent and stinger sectionsa difficult process. How twostroke expansion chambers work, and why you should. Now tab down the diameter 2 column entering the numbers 70, 100, 120, 120 and 22. The exhaust system of a car is one of the most commonly modified areas when a. Download it here go to the 2t exhaust calc menu item. What will a two stroke run like without an expansion chamber. The way to calculate the return timing and length of the negative wave in a 2 stroke expansion chamber is by this formula. Good evening folks, i have been trying to make a two stroke exhaust, and would like to use solidworks to curve all the conic sections, because doing this. The way a two stroke motor works causes them to be f. Build 2 stroke exhausts, know how to change gear ratios depending on racetrack, simulate realworld performance with our bike dynamics simulator. This means that to run motax, you will need a post 2010 computer which is preferably a desktop, driven by an intel i7 4core processor. This coefficient kh is called the horn coefficient, with typical values between one and two. Bigger carburetors, higher compression ratios, altered port timings and expansion. Two stroke exhaust systems are dynamically very complicated yet also very effective tuning tools to manipulate, adjust and capitalize upon an engines power characteristics.