2 stroke engine tuning software

It covers my early days in the motorcycle trade, on to starting my own mc business then forming my tuning business. Mar 02, 2009 the gauge displays af ratios from 1016. Two stroke performance engine tuning performance parts. An engines exhaust port can be thought of as a sound generator. Megatunix is a crossplatform tuning application for some of the available diy fuel injection controllers, including the megasquirt ms1, ms1extra, ms2 and ms2extra as well as the libreems efi system and the jimstim ecu stimulatordevelopment tool. This is in contrast to a fourstroke engine, which requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. 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. Geared specifically for gp and kart racers, this hardcover treasure has turned out to be a great reference source for questions on the logic and concepts that pertain to tuning a 2stroke for maximum performance. It is very important to understand that tuning a single item fitting bigger. The objective of tuning is to improve the volumetric efficiency of the engine. From the bellmouth of the carburetor, to the insert of the reed valve and the reed petals, at the studied of the cylinder ports, until to the balance of the crankshaft, thanks at our software you could optimize your engine and to develop new.

Two stroke tuners handbook 2 another mistake commonly made, sometimes even by those who have enjoyed some success in modifying two stroke engines, is to believe in a kind of mechanistic magic. Software for fine tuning and design of two stroke engine. 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. Processors with a lower number of cores will run the motax expansion chamber optimiser, as will the latest. This section describes the basic function and the most important processes in the 2 stroke cycle a tuner need to consider in general and with the bimotion tuning software in particular. The trend in high performance two strokes has continued towards more case volume, however each engine and application differ. In motocross its usually a compromise between best peak hp and good early off the pipe power. Hp is a full on specialist in ecu tuning 2 and 4 stroke, cdi development for 2 strokes, and general mapping needs. The worlds leading 2stroke engine simulation software available readytorun on your pc, at only. This toolkit offers some basic two stroke engine calculators in hand but also extends to some advanced as well tuning menu. In the 2stroke engine with reed valve admission, the identification of petals more adapted to the reed valve and to the engine is essential to maximize the performance starting from the intake phase. The af gauge utilizes a lambda sensor that is inserted into the center of the exhaust stream, approximately six inches from the piston in the header pipe of a four stroke and in the baffle cone of a two stroke engine. Thanks to the software 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. Since modifying the 2stroke engines require not only a big.

This version is limited to 1 license per windows computer without time limit and can be used offline. Part of the problem is understanding the pulse or charge nature of the airflow in a 2stroke engine. Specificaly written for gokarts engines, but will do any 2 stroke. Ktm300excxc and husky te300 20082016 top end rebuild kit tsp. 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. A rc 2 stroke is just like any other 2 stroke engine when it comes to tuning only they tend to be a lot more cranky. Laptop tuning of stock ecus tuning stock engine control. Another quick note on 2 strokes you can change the dynamics and power of a 2 stroke engine a lot just with simple porting.

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. The problem with forced induction and 2 strokes is that for a period in every cycle, the exhaust and inlet is open at the same time. Dyno curve below shows an excellent peak power of 17. Each part of the 2 stroke cycle can be evaluated and designed. There is quite a large section on changing the face of production racing and into the marlboro series and the lc era and through the kr1s and rgv eras. Crankcase and cylinder porting is probably the most controversial subject among performance 2stroke engine builders. 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. Performance engineering 2 stroke tuning we specialise in honda 2 strokes, covering the cr range of motorcross bikes, the nsr250 street bikes, and hrc grand prix 125, 250, and 500s. Dynomation5 engine simulation motion software, inc.

The physics of a 2 stroke engine is very complex compared to that of a 4 stroke when we are trying to optimize horsepower, reliability, and reasonable width of the power band. There are a few software programs available for 2 stroke simulations. The other is how air density barometric pressure, temp, humidity, and elevation change, affects horsepower. The high performance 2stroke engine is a pulse resonance engine which means that the operation in general and the scavenging in particular is not only. Since modifying the 2 stroke engines require not only a big budget in funding but also modification strategies. Is it possible to use turbocharger in 2 stroke engine. Once the engine has warmed up you should be able to snap the throttle open quickly to about 14 open without hesitation.

Transfer dynomation5 engine files to dragsim5 and fastlapsim5 for track testing and analysis. He is a master pipe welder and has software based on the engine parameters that will make a pipe that will. Laptop tuning a new wave of laptop tuning tools have been coming to market that allow users to directly modify the fuel and timing maps of. It is a couple of articals that xipp wrote in response to my engine tuning question that got a great response from the rc community.

The 500 cc 2 stroke racing motorcycles that used to be popular in the 500gp races would produce peak power output of around 180 hp, but in a very narrow rpm range. Performance engineering 2stroke tuning we specialise in honda 2strokes, covering the cr range of motorcross bikes, the nsr250 street bikes, and hrc grand prix 125, 250, and 500s. Gtpower is used to predict engine performance quantities such as power, torque, airflow, volumetric efficiency, fuel consumption, turbocharger performance and matching, and pumping losses, to name just a few. Often youve been forced to use the reed petals proposals on the market, without being able to take significant action. We believe that using this software will help your 2stroke development or racing results on different types of competition.

Dynomation5 incorporates two distinct engine simulation models. 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. Our goal is to achieve the biggest power gains as possible, while maintaining reliability on your 2 stroke engine. For example, a cc engine may produce 125 hp in stock form and 175 hp after race tuning. The modern race bike requires precise tuning, knowledge, and expertise to unlock all possible power, ride characteristics, and delivery of power. We offer trackside testing for both engine tuning and efi. Computer input requirements are indicated for the following software programs. Laptop tuning a new wave of laptop tuning tools have been coming to market that allow users to directly modify the fuel and timing maps of stock ecus. Complete assembled 49cc 2 stroke engine, single cylinder, aircooled oil fuel ratio. Oct 21, 2017 6 excel spreadsheets for designing an expansion chamber, a heads squish band, a boost bottle, a balanced crank, correct fueloil ratio, and correct port dura. Assign fixed relationships between transfers and exhaust port. Mota for windows slide show of features millions of tuning variations possible. Software for fine tuning and design of two stroke engine by. In other words, the engine will, after tuning, produce more power from the same displacement.

Each part of the 2stroke cycle can be evaluated and designed. 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. Thought i would transfer this over from tha cirkus rip. The 500 cc 2stroke racing motorcycles that used to be popular in the 500gp races would produce peak power output of around 180 hp, but in a very narrow rpm range.

Xipp engine tuning method salsa petrol gas engine tuning carbs arent too difficult to tune up if you know what youre doing. Ktm300tpi and husky 300i 2018on complete rebuild kit tsp. For manufacter and tuner of two stroke engine, ntproject has developed a series of software to help in the development of the engine and its components. I am very proud of the riders i helped and sponsored and there is an appendix. 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. Those of us who have grown up in the japanese two stroke. Calculates port heights from durations, or durations from port heights. We have the optimum case modifications to suit each application and engine developed over countless hours. But youll need to get a glow plug that suits the type of engine you are using but also the fuel. 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.

It is also very good for expansion chamber designs. Bimotion 2 stroke software has been commercially available and in professional use since 1991. Ktm300excxc and husky 300tetx 20172018 complete rebuild kit tsp. Graham bell is an acknowledged expert on engine tuning, with many years experience in this field. The way a two stroke motor works causes them to be f. The software in question the inexpensive stuff is great for someone who just does not have the math skills to wade through what seem to be a text book of complex formulas. It reveals otherwise invisible pressure waves and mass flow in cylinders and engine passages. 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. The physics of a 2stroke engine is very complex compared to that of a 4stroke when we are trying to optimize horsepower, reliability, and reasonable width of the power band.

On one hand, jetting changes can give you an inexpensive means to instantly increase horsepower, throttle response and power characteristics. Gtpower engine simulation software gamma technologies. Those of us who have grown up in the japanese twostroke. Software for optimal setting and design of engines and. They are so simple and fun that ive always enjoyed tinkering with them.

Ktm300excxc and husky 300tetx carby 2017on top end rebuild kit tsp. But because of the limited worldwide activity in twostroke engine development, program sales were limited and further development was curtailed. Basic 2 stroke tuning changing the power band of your dirt bike engine is simple when you know the basics. An excellent academic book on the theory behind performance tuning for 2stroke motorcycles. Gtpower is the industry standard engine performance simulation, used by all major engine manufacturers and vehicle oems. The most common mistake is to choose the wrong combination of engine components, making the engine run worse than stock. There are many ways to boost the power, one of which is by installing a tuned pipe. The official home page of our 2 stroke wizard tuned pipe. Two stroke performance tuning volume of the cylinder with the piston at tdc figure 2. It clearly shows the air fuel mixture as a green mist while entering the engine through the intake track. 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 use computer design software to maximize power and torque at any elevation.

The af gauge utilizes a lambda sensor that is inserted into the center of the exhaust stream, approximately six inches from the piston in the header pipe of a fourstroke and in the baffle cone of a twostroke engine. The one i have been using is call mota, from ian williams tuning. Often youve been forced to use the reed petals proposals on the. How twostroke expansion chambers work, and why you should. Our goal is to achieve the biggest power gains as possible, while maintaining reliability on your 2stroke engine. Two stroke motors are more efficient that four strokes for a few reasons. But because of the limited worldwide activity in two stroke engine development, program sales were limited and further development was curtailed.

This phenomenon was first discovered in the 1950s by walter kaaden, who was working at the east german company mz. A myriad of different aftermarket accessories is available for you to custom tune your bike to better suit your needs. Changing the power of 2stroke engine is really very simple when you know the basic techniques of 2stroke engines. Velosolex s 3800 2stroke tuning and engine design books. Bigger carburetors, higher compression ratios, altered port timings and expansion. This engine modelling software allows for the complete prediction of engine performance from torque to fuel consumption to exhaust emissions. Software for optimal setting and design of engines and racing. Beginners guide to two stroke jetting adventure rider. In the 2 stroke engine with reed valve admission, the identification of petals more adapted to the reed valve and to the engine is essential to maximize the performance starting from the intake phase. If the screw ends up being bottomed out or almost bottomed out you need a larger jet. Racingsm software available for windows platforms desktops, laptops includes 27 programs which will help you on your 2stroke development. 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. For manufacter and tuner of two stroke engine, ntproject has developed a series of software to help in the development of the engine and its components from the bellmouth of the carburetor, to the insert of the reed valve and the reed petals, at the studied of the cylinder ports, until to the balance of the crankshaft, thanks at our software you could optimize your engine and to develop new. The idea is to get an education in cause and effect.

Although there is really no shortage of books on the subject of 2stroke tuning and preparation, i knew that an active software programme would be able to offer so much more. Bimotion 2stroke software has been commercially available and in professional use since 1991. Mota and its related set of programs have been developed to simulate the performance of highoutput single cylinder twostroke engines. Discussion in 2 smokers started by snarlyjohn, sep 6.