2 stroke porting calculator. special … 2 Stroke Porting Calculator.

2 stroke porting calculator Gregory Austin. html 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. 0 mm and a stroke of 50. I also made a crank balance calculator, the only one that takes into consideration all the different forces involved every 15 degrees of crank rotation. ) Free Spreadsheet of 2 Stroke Calculators Below are notes on my free spreadsheet of 2 stroke calculators. Enter stroke length and timing This is the usage instructions for my 2 stroke engine porting calculator which is an Excel spreadsheet. My take on it is you build the entire engine around what rpm you want the most power and porting is a big part BirdCage Software - 2 Stroke Expansion Chamber Exhaust Calculator Software. The best thing about bolt-on modifications is if I got sick of the silly free programs and the expensive "for sale" programs (and that waste-of-time 2 Stroke Wizard) and so made my own expansion chamber calculator spreadsheet. Updated on. Enjoy Two Stroke Port Duration Port Timing Basics. File Name: co. Oleh karena itu, port timing ( dimana lubang-lubang terbuka dan tertutup ) ditentukan oleh posisi dan ukuran lubang itu. 3mm for the bore and 39. That's what the 4 stroke engine volume calculators do. The programs are for sale at dragonfly75. Rules for porting and why it's a good idea to use a porting spreadsheet calculator. The calculator will tell you how much oil to add on top of the fuel amount (no need to subtract the oil amount from the fuel). This uses 2 Stroke Porting Calculator, part 1 part 2, part 3 Porting Calculator 11B changes CRANK BALANCING My Latest Crank Balancing Video Computerized Crank Balancing Basics Equating Balance Hole Size for my Crank Balance Calculator Single Cylinder Crankshaft Balancing Methods Compared CARB JETTING Jetting Overview Idle and Off Idle Jetting Jetting, 1/2 to My 2-stroke spreadsheet is ready (for now at least), so I'm throwing it on the net so everybody can use it. This project deals with fabrication of dual fuel engine and practical experimentation on efficiency and working operation of Dual Fuel Engine and implemented it in a 2-wheeler motorbike engine. com(Page link on si Port Timing Diagram Of 2 Stroke Engine - Mesin 2 langkah bekerja dengan membuka dan menutup lubang-lubang cylinder oleh turun naiknya piston. products. Enter the current and desired port durations to calculate the required height change. special 2 Stroke Porting Calculator. See my site at www. Read my expansion chamber theory page to get a full understanding of how expansion chambers work and click here to read more of the details of this spreadsheet calculator. z o. 1,284 likes · 1 talking about this. RPM, RPM, and RPM. Our programs have a long history of successful track results. A commonly used squish band percentage for 2-stroke engines typically falls between 40% to 60% of the bore diameter. 144cc CR125 and 265cc CR250 truly make older 2-Strokes equal or better than modern 4-Strokes. If you don't have Excel or have a version of Excel that doesn't work with macros then you can buy Microsoft Office 365 for $70 at www. The procedure involves observing To mod any I engine I use computer programs to analyze the engine porting and find out the end RPM that the pipe sets. Post by Erland Cox » Mon May 10, 2010 6:45 Now within the Dimensions box, enter 54. You don't need fancy expensive stuff to port two str MOTA-7 is a 2-dimensional simulation model, the exact same program we have been supplying as a trial with the later MOTA v6. Then enter as many values as required. This is Pada gambar tersebut terdapat 2 cara dalam melakukan modifikasi port yakni memperlebar bagian atas ( sedikit oval ) dan memperlebar bagian atas dan samping. JanBros. (1) enter the piston (port) height value and click "Calculate Duration" to get the open duration -or- (2) enter the open duration value and click "Calculate Height" to port time calculator for 2 stroke engines. The first 3 vi First thing you have to do is make a port map even if you decide to let someone else port your cylinders. Automated Design provides multi-goal, multi-variable Design of Experiments automated optimization of your simulation models. Next enter the cylinder bore and stroke which are 40. Re: 2-Stroke Exhaust Port Timing . You'll see that the separations between the RD's gear ratios are such that if you build an engine with an output like that of a TZ each time you shift Use our free premix calculator to calculate your 2-stroke fuel premix ratio! This tool can be used for chainsaws, outboard motors, weed whacker/eater, snowmobiles, motorcycles, mopeds, scooters, dirt bikes, seadoos, etc. A few things left to do to it. 51 deg atdc. It’s easy, you just enter the needed data into the light blue cells and the hidden formulas will use that info to display to you the results. Porting Calculator Instructions Here's the Excel file screenshot. com/2st Enter the timing in degrees that you require into the calculator below and it will tell you how many millimeters the piston needs to travel before TDC, you then turn the flywheel anticlockwise until the dial gauge reads that number. Enables all transfer port heights to be calculated automatically by just entering exhaust timing; Exhaust and main The importance of the engines peak power RPM (via porting w/o expansion chamber) in relation to the pipe powerband. David Goodwin. 0; Released: January 28, 2020; Share This: Tweet. co. A forum community dedicated to all 2 stroke engine vehicle owners and enthusiasts. There are 3 exhaust ports - One large central port flanked by 2 smaller side ports ( boosters ). by David Goodwin. calculator-v2. sebulan lebih jugak kiter stu Doing the finishing touches on the Spx cylinder and wanted to give you a quick tour of my porting setup. Erland Cox Guru Posts: 4187 Joined: Mon Jan 30, 2006 2:46 am Location: Lund in Sweden. ***Another quick note on 2 strokes- you can change the dynamics and power of a 2 stroke engine a LOT just with simple porting. All the light blue boxes is where you enter the needed info. The resulting calculation is in degrees in either metric or US entered This form calculates the displacement and timing events for piston ported, two-stroke model engines. Engine RPM. The exhaust calc should be pretty self-explanatory if you figure out the other 2, lol. dragonfly75. A Port is an Squish Band Percentage Calculator. From a previous video comment by Mad Max's Dog I decided to do a theoretical study into a flat v a curved exhaust port roof. Keep your motors running right. 99에 받으세요. Engmod2t http://vannik. Crazy, like 2 strokes aren't important enough to have their own formulas. It explains that two-stroke engines have inlet, transfer, and exhaust ports cut into the cylinder instead of valves. 6 mm. Every 2-stroke simulation program in existense has its root calculations derived from this book. For all of the above methods you start with the desired 2 stroke fuel:oil ratio, then enter the amount of straight petrol you want to mix. com/moto/ 2 Stroke Expansion Pipe Design: page (There are no good pipes made for these engines so you have to design your own. After entering the stroke and rod length, select either field to calculate. Sep 8, This is the second of a series of videos on the topic of 2 stroke engine ports that you need to know if you are intending to modify your engine. Two-Stroke Principles: Although a two-stroke engine has fewer moving parts than a four-stroke engine, a two-stroke is a complex engine with different phases taking place in the crankcase and in the cylinder bore at the same time. . Some of these calculators have never been available till now although engineering types have always been able to figure this stuff out. Your Best Supplier of 2 Stroke Porting Tools. Port timing is the degrees of crankshaft rotation after TDC to where port starts to open. Do the math and calculate the RPM drops between each gear for an RD versus an old TZ. At a minimum, you need to enter values for the bore and stroke, although this will only calculate the engine displacement. 2T Exhaust Calc is a Freeware program created to design a 2 Stroke engine performance exhaust system generally referred to as an "Expansion Chamber" The software equations used are derived from the work of Professor Gordon P Blair who carried The Exhaust Designer Programme enables the user to design a two-stroke exhaust system with ease, then with one click of the mouse, create a pdf document in any of the common paper sizes (a4, a3, letter). We've Been Porting World Class Cylinders for Decades. Again, it depends on what you want the engine designed for- you can't have a . Mix and manage your fuel. You need to have an accurate set of measurements for the subject Enter the port opening and closing degrees to calculate the duration. patreon. 2 on Windows Pc. 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 Now within the Dimensions box, enter 54. 9hp 17. 2 stroke calculator software - 8 Excel spreadsheets for different aspects of 2 stroke design port time calculator for 2 stroke engines. Obtenha a última versão de 2 Stroke Porting para iOS (iPhone) por $4. Many things will affect the power delivery of two-stroke motorcycle engines. Showcasing Engmod2t, a great two stroke engine simulation software. Powered by lomatronic. These modifications can be extremely effective when used in the right combinations. odf are probably best), or, if you're signed in to your Google account, save a copy to your Google Drive. The calculated specific time-area and blowdown are shown below. VIE. input parameters instructions - use ". Popular kits like 295cc YZ250. The download link is at the bottom. dragonfly75. You'll get a lot better bottom end power for tight woods riding with the tightest clearance (but top end power suffers on a 2-stroke when you have too high of “How To” Tips from TJ on Porting and Polishing 2 Strokes. As an assurance of quality and commitment, we give a lifetime warranty to the tools you buy. The first 3 v Obtenez 2 Stroke Porting la dernière version pour iOS (iPhone) à $4. Some of these calculators have never been available till now although engineering types have There are several techniques to tune up the engine 2 stroke, the most common is re porting port design. Blair. The flow through the exhaust ports is both sonic and subsonic; in the former case the flow is independent of the exhaust Download 2 Stroke Porting 2. Nombre de messages: 362 Localisation: Belgique Date d'inscription : 05/12/2011: Sujet: Re: Janbros' 2-stroke excel for ports, heads and pipes Sam 8 Oct 2022 - 11:30: sorry, hosting site dissapeared and fotgot to change links here. Mikuni Main Jet Crossover Calculator 2 Stroke porting software for the enthusiast. pretzelstudios. iPhone App - Designed for iPhone, compatible with iPad Price: $4. This time you I've been into motorcycles since I was 15 years old in 1973. $4. com or use Open Office. 3. One field must have a value to calculate the other. After fabricating the engine with the kit, other Your Best Supplier of 2 Stroke Porting Tools. com/moto/ However, deep knowledge about 2-stroke tuning makes this program even more efficient and flexible. For Windows 98, XP, NT, Vista, 7, 8, 10. they should be able to provide you that information. A tuned pipe is made of between 3 and 4 characteristic sections depending on the desired effect. I didn't 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. gg/Zjmz2dDhvU----Link to calculator : https For purposes of OUR calculator, we define Duration as the number of degrees of crankshaft rotation that a port is open. It is a 2-stroke engine simulator only, based on the MOTA simulator, but with a 2-dimensional scavenging model. MULTICHEM Sp. output capacity = 0 cm³ exhaust ° = 360 scavenge ° = 360 inlet ° = 0 . Sujet: Re: Janbros' 2-stroke excel for ports, heads and pipes Sam 8 Oct 2022 - 8:49: Non les 2 liens ne fonctionnent plus. Keep in mind measurement designations can be metric or US. Below are notes on my free spreadsheet of 2 stroke calculators. Get a free copy of the spreadsheet: 2-STROKE TUNING - PORTING DESIGN CHECK (right click, and save destination as. The options may be chosen on the product page Granturismo GT240 T-shirts £ 12. Come join the discussion about your favorite engine’s performance, classifieds, troubleshooting, maintenance, and more! Show Less . New OVERLAY feature, calculate 2 exhausts for the same engine, just by modifying some inputs you can compare both exhausts on an overlay chart. The document describes how to draw the port timing diagram of a two-stroke cycle petrol engine. Stale fuel is the number one cause of motors running poorly, we've got the tools to help you mix the right amount to keep your fuel fresh and your engine running right no matter which 2 stroke fuel ratio you use. piston length in mm. " instead of "," for inputs. Each page of this document contains the template for fabricating the exhaust system. scavenge to TDC mm. Have you tuned a two stroke and wondered when your exhaust and transfer ports need to open in order to get maximum power at the rpm you want? 2 Stroke Porting will tell you. Air/gasoline enters the engine from the carburetor at a ratio close to 15:1. A Port is an Porting a modern 2-Stroke engine can improve the ride-ability of your machine as well as improve the power. 99. in For manufacter and tuner of Two Stroke Engine, NT-Project has developed a series of software to help in the development of the engine and its components. Published by: David Goodwin. Now suppose you have the same two-stroke engine as the previous example. Rich. 0 / 6th April 2019 . office. (Do it right by doing it yourself) This screenshot is sheet 1 of 4 sheets: ECcalc versions: I have been working on this for 5 years off and on, and previously I made the early versions available free of charge ~ Boost Bottle Designs Development Calculator (Cylinder Shape, Cylinder to Sheet Metal, Box Development ~ Electric Vehicle Road Speed Calculator ~ 2 & 4 Two Four Stroke Exhaust Expansion Chamber Pipe Muffler Silencer Design (2 &3 Stage Diffuser) Calculator ~ Compression Ratio Calculator for 2 & 4 Stroke Engine Just a quick update on the progress of the freeware 2 stroke Expansion Chamber Calculator Software. exhaust to TDC mm. Technical details. 99的價格獲取2 Stroke PortingiOS最新版本（適用於(iPhone)）。Have you tuned a two stroke and wondered when your exhaust and transfer ports need to open in order to get maximum power at the rpm you want? 2 Stroke Porting will tell you. uk. The program is written in Microsoft Excel 2003 for maximum back compability, i. 50 This product has multiple variants. com/moto/blowdown. Use actual measured values only. We make no warranties, implied or expressed, to the accuracy of any data or calculations presented here. 2 stroke porting a few years ago. This can be very useful for quickly changing some characteristics of the engine, thus modifying its behavior and After entering the stroke and rod length, select either field to calculate. These are the files that can function manually without using macros by using Open Office: Porting Calc, Jetting Calc, This is the third of a series of videos on the topic of 2 stroke engine ports that you need to know if you are intending to modify your engine. Perlu sobat ketahui,bahwa sasaran porting motor 2 tak adalah terletak dibagian lubang buang atau yang disebut lubang exhaust. This module also provides results for BMEP, Exhaust Port DX & D1 Width % of Bore, Porting Calculator Instructions This helps you determine the engines raw peak power RPM as if it didn't have an expansion chamber (which is more dominant than porting) and it shows you a graph of the power, also as if the pipe wasn't 2 Stroke Design Calculators. wont do any good to change anything right now if its not going to coincide Discussing Reversion and Blowdown in this episode. Thanks to the software Reed Design can instead analyze the All about 2 Stroke Porting * Eleven 2 Stroke Myths * How to Change a Tire Boost Bottle Calculator * Crank Balance Calculator * Engine Oil Ratio Calculator Jetting Calculator * Carb Size Calculator Complete list of my Calculators Info for Kawasaki KDX200 owners KDX motocross mods * "SR", the International model of KDX * Adjustable Performance CDI CDI repair Heres a couple of porting programs i thought might be beneficial to anyone interested. Design and simulation of Two-Stroke Engines by: Gordon P. Real-Time Sticky demonstrates how to use the Buzzwangle Tool #1 to calculate your port timing on a 2-stroke engine after first securing the cylinder to the engine. The contributing factors are carb size, compression ratio, cylinder 2t Porting calculator 145cc 36. Go figure. This is more for small engines than large ones. This 2 Stroke Exhaust Expansion Chamber Calculator is now ready for downloadhttp://birdcagesoft. 2 stroke wizard, expansion chamber, expansion chamber design, exhaust header design software, 2 stroke pipe design, exhaust design software, exhaust design, homepage Re: two stroke porting « Reply #11 on: March 13, 2010, 08:53:36 PM » What I've done to my 01,02 and 05 RM's was machine 0. Port Timing Basics Air/gasoline enters the engine from the carburetor at a ratio close to 15:1. htmSupport me on Patreon!https://www. The design of the exhaust ports of a two-stroke cycle engine is mainly based on the area required to reduce the cylinder pressure at the end of the expansion stroke to scavenge air pressure in the minimum practicable time. 2. The first 3 vi Below are notes on my free spreadsheet of 2 stroke calculators. This is the third of a series of videos on the topic of 2 stroke engine ports that you need to know if you are intending to modify your engine. I first got a Penton 125, then a Honda XL250, Husky CR125, MZ 250, Yamaha RD350, Honda XL250R, Kawasaki KDX200 (I experimented with porting), Honda CR250 (I completely refurbished), Suzuki AX100 (I completely modified), and a two stroke 48cc motorized bicycle. Purchase the Porting Tools you need at our Online Store. #2 You got to dedicate youself with the desire to do the best porting work you can do & nothing less. www. × Shut off valve, gas injector, porting tool, pressure regulator, coalescing filter and Actuators. Lihat juga Rumus Porting Polish Motor 4 tak. 5 for the stroke, hit the tab key then enter 110 for the rod length, hit the tab key again and enter 25. 5cc To 500cc Engines The Test your own theories on porting and exhaust pipe design; explore the limits of various intake methods; or just look for the highest power output from your own engine. This The 2-Stroke revolution is real and Millennium Technologies offers the worlds best 2-Stroke Big Bore kits that come complete with cylinder porting, cylinder head modifications, and parts specifically for your application and riding style. 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. ) Just fill in the input fields, and you will readily get the results. 3 programs. Re porting it too much like them are: 1 Changing the high port 2 Redirecting port window 3, Smooth channel port 4 Enlarge the size of the port Of course, the above points should be made with the exact calculation for maximum results. See 1. This is the usage instructions for my 2 stroke engine porting calculator which is an Excel spreadsheet. - Determine the level of porting you wish to achieve before you start cutting or grinding. htt Porting Calculator V4. Porting calculator and porting analyzer are a couple earlier versions of fairly good for sale products but with no real differences. Have you tuned a two stroke and wondered when your exhaust and transfer ports need to open in order to get maximum power News: NEW 2 Stroke Wizard v7! RELEASED 15 MARCH 2023!(No Sound Video) 2 STROKE WIZARD TUNED PIPE PRO VERSION 6 - Only $14 USD! see our website for more. Excel calculators: expansion chamber, porting, carb size, jetting, squish band, crank The following are spreadsheets for different aspects of 2 stroke design/modification. Enables all transfer port heights to be calculated automatically by just entering exhaust timing; Exhaust and main In 2-stroke engines the presence of the gaskets between the cylinder and the head, and between the crankcase and the cylinder, can allow to modify many characteristic parameters simply by varying the thickness of the gaskets. 1nm Egt temp ~500°c-600°c 90% result achives from port mapping using that calculator 2 Stroke research & development | 2t Porting calculator 以$4. Gordon P Blair and published by the SAE. The links are user guides for the porting calculator and port map analyzer. General operation: Entering stock engine specs: Selecting port input mode : Transfer and boost port setup: Raise barrel control: Using the graph values: Power meter: Port areas: Port CAD: Exhaust shape controls: Transfer port controls: PNG file controls: General operation. Responsibility to you acts as Syndent’s perpetual stable development. inlet to TDC mm . 2-stroke tuning software, the best and simpliest one can get! At Bimotion, our mission is since 1991 to develop user friendly commercial grade two stroke software, at an affordable cost for amateurs and professionals alike. bore diameter in mm. Why you should buy Bimotion : - unique, modern, user friendly and in depth programs - very For purposes of OUR calculator, we define Duration as the number of degrees of crankshaft rotation that a port is open. when the porting is for too low a RPM range which prevents the engine from reaching the RPM limit set by the pipe. Note that the distances from the port roofs to top of barrel are known, because they were entered when tracing the ports. Now do me a favor folks, someone measure center to center of a hobbit rod please. 2 Stroke porting software for the enthusiast. conrod length in mm . This allows for 2-Stroke Exhaust Calculator Calculate GP / ROAD / Off-Road 2-Stroke exhausts for optimal performance. 33. There are also power-valve and Reducing the squish band width while maintaining same squish height / clearance will reduce the squish velocity slightly, and is an important tuning/design tool, but higher octane on the tighter clearances is best advice. If you have any coolheads work pretty nice so your good there but personaly i think your exh/trans are alittle low for the rpm your seeking. 2T Exhaust Calc - Ver 1. 2stroke calculating tools V0. The intake port allows air/fuel to enter under the piston, the transfer ports allow fuel The world's leading 2-stroke engine simulation software for 3. za/EngMod2T. Why does the tuned length of an expansion chamber change because of exhaust temperature?We are using the two stroke exhaust calculator written and developed I also decided to make other 2 stroke calculators such as a jetting calculator since I knew of no good cheap ones. 2 Stroke Carburetor Sizing And My Excel Calculator There are many contributing factors to the combustion burn rate which should match the target RPM (which is lower than top RPM for street and trail bikes). This calculator is supplied as a convenience and intended to be used for estimates only. 99 でゲット！Have you tuned a two stroke and wondered when your exhaust and transfer ports need to open in order to get maximum power at the rpm you want? 2 Stroke Porting will tell you. ) Engine Porting Calculator: page (If you have an aftermarket CDI and want to port for higher RPM then this helps you know what to do. iPhone. All dimensions are in mm, unless stated differently on the front panel. Multi Measure Tool Kit. Often you've been forced to use the reed petals proposals on the market, without being able to take significant action. After it is burned Virtual 2-Stroke can be bundled with Automated Design and Network Supercomputer. 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 port opening to the cylinder). You got to love a 2 stroke engine first off, no other type should make any difference to you. (1) enter the piston (port) height value and click "Calculate Duration" to get the open duration -or- (2) enter the open duration value and click "Calculate Height" to get the piston height. by Michael Forrest . It is evident that the exhaust port has an A level tune. Note: this is purely theoretical 2 Stroke porting software for the enthusiast. Kawasaki AR 50 100 mph Challenge PT30:00 - Intro0:47 - Vinamold4:51 - Port Map5:37 - Port Timing Measuring 7:28 - Mail Time8:02 - Dat2T STA - power capabilit The basics of two stroke port durations explained. My porting calculator helped me to understand the reason I lost RPM after raising the transfer ports. when the blowdown time/area is too little to allow the engine to reach the RPM limit set by the pipe. Everyone is measuring the cold port After entering the stroke and rod length, select either field to calculate. Untuk lubang Exhaust Holen Sie sich die neueste Version von 2 Stroke Porting für iOS (iPhone) zum $4. Full Forum Listing. Top Dead Center (TDC) is the top of the piston's stroke and Bottom Dead Center (BDC) is the bottom of the piston's stroke. One thing is to calculate the shape; another is to do it on real hardware. stroke in mm. This time you Porting 2 Stroke Engines. 0mm for the stroke. Porting is art ( at least to me it is), a part of you when your finished with the cylinder so you either look good or you look like a mess by your Corrected Compression :1 Cold Cranking Compression Values in RED are approximate. As an assurance of quality and commitment, Corrected Compression :1 Cold Cranking Compression Values in RED are approximate. Explore Our Forums. Check out my other 3 squish ba Similar Apps to 2 Stroke Porting Calculator 2 Stroke Porting. Both programs are constantly being added to, whenever I have the time. Why you should buy Bimotion : - unique, modern, user friendly and in depth programs - very I think we should all be going by this calculation instead of the old way which basically gives the engine volume from BDC on up but without the head volume. xlsx or . 1. The potential power based on the calculated blowdown time About using this Excel spreadsheet for calculating squish volume and squish velocity with guidelines on what values to target. when the porting is for higher than the pipe limit. From measuring all of the physical engine parameters to what calculations ar Get 2 Stroke Porting latest version for iOS (iPhone) at $4. Peak power occurs at 12,000 revs/min. Without correct machining tools, the result will be what the tools can admit and what they are forced to do by your hands. com/moto/porting. o. click on image for the presentation: SET-UP TWO STROKE is the universal software for optimal tuning of all 2-stroke engines. if your interested in doing more cylinder work i would first call dyno port and ask what timings they used to design your pipe. Top. The only change for this release is to a PDF format User Manual. The litterature on which the website is based on, are the books: 1. Note that you do not require a paypal account as you can use your credit card. It contains pages for ports, the head and FOS pipe On the seperate ports pages (exhaust and transfer), it calculates the 2 Stroke Engine Port Timing. Port entry angles, con rod length, transfer passage entry area, ignition advance curves - you can guess if you want to, but you cannot leave the spaces blank. The info for Aprilia 143cc is already there as a good example. Simply move the slider to the rpm where you want the maximum power to be and it will This article is an overview of how porting is performed and how it can benefit your performance demands. 2” I also saw a mobile app called “2 Stroke Porting” I downloaded it on iPhone App Store, I wasn’t able to find it when I looked again a few days ago but I believe I saw it on ini adalah hasil daripada formula yang ada dalam two stroke book tuner dimasukkan kedalam microsoft excel bagi memudahkan kerja. Network Supercomputer adds a networked multi-user database and parallel processing of your optimizations to solve your design problems quickly and efficiently. There is one or more forward-located exhaust ports, two or more side transfer ports, and one rear intake port called a boost port. Program features: Calculates port heights from durations, or durations from port heights; Assign fixed relationships between transfers and exhaust port. Click on the label of any of the form fields for an The cylinders have a bore of 56. The first program started off based on Bell's info for port durations vs rpm, the second to help with collecting time area info and use with Jennings' book. I don't have a disassembled crank laying around. The idea is to have the combustion mostly complete before a certain crank degrees at the target RPM. Somish Kakadiya. فم بحصول على أحدث إصدار 2 Stroke Porting لنظام iOS (iPhone) بسعر $4. Re: 2-Stroke Exhaust Port Timing Post by beanspeed » Mon May 10, 2010 8:40 am Erland, a friend of mine has a tiny nsk grinder that has interchangeable heads and its really good for small 2 stroke porting jobs, I don't know the exact model but can find out if you like. Rich’s Taylored Porting offers all-inclusive porting packages for all types of 2 & 4-stroke engines used in Dirt & Street bikes, 6 Excel spreadsheets for designing an expansion chamber, a heads squish band, a boost bottle, a balanced crank, correct fuel/oil ratio, and correct port dura Start by selecting the units of your measurements (inches, or millimetres) using the Radio Buttons at the top of the form. Port heights This video covers the basics of how all 2 stroke engine modelling software works. You have the option of using either one intake port roof, and one exhaust port roof, or, one intake port roof and the top of the barrel. Exhaust Duration Calculator; Stroke: mm: Conod Length: mm: Piston Crown to Top of Barrel at TDC: mm: Height over Port, Top of port to top of barrel: mm : Exhause Duration (degrees): SpliffSpeed T-shirts £ 12. 2. Check your input data and click the paypal button. Hit the calculate button. It helped me solve an unsolvable jetting problem with my Suzuki AX100. sponsored by CC Specialty Tools. It also took a lot of time to calculate the actual trapped volume for compression-ratio purposes; next time I think I'll just replace the top piston ring with an O-ring and measure it. apk Calculate port opening times for max power at a given RPM on a two stroke engine. e. Download it here http://bird New version of 2T Exhaust CalculatorIt is a freeware 2 Stroke Expansion Chamber Exhaust calculator programDownload at http://birdcagesoft. Please make sure you have a specific engine project you are working on, and be prepared to use all of your precision measurement tools. Enables all transfer port heights to be calculated automatically by just entering exhaust timing; Exhaust and main The way to calculate the return timing and length of the negative wave in a 2 stroke expansion chamber is by this formula: WRT1=(D1x2)/SW 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 Erland, a friend of mine has a tiny nsk grinder that has interchangeable heads and its really good for small 2 stroke porting jobs, I don't know the exact model but can find out if you like. An engine "port" is an open window in the cylinder wall for the receiving or expeling of fuel mixture (air/fuel). You can then mark the Mag housing at the position of the arrow on the flywheel to mark your desired degrees. There has never been a better time to design and fabricate your own exhaust system Nothing pirated, though if you can crack 2 stroke wizard it's in there too. Finally, enter the exhaust duration of 184deg and the peak power speed of 12500 revs/min and click the Design Now button. ) Carb Jetting Calculator: page (If you have an aftermarket carb then this helps you with jet sizes and which needle to use. Tape measures and a dollar store plastic caliper will not work!!! If you're serious about porting your 2 A quick explanation of these spreadsheets. com/moto/calculators. Pipes, silencers, carburetors, reeds and valves are all popular bolt-on modifications. comFollow the link to my software site and go to the 2T Exhaust Ca If I don't have your engine in my database, you get a performance simulation package and porting spec sheet absolutely free!!!. Click on Calculate. On top of that, I have a 600 page book entitled "Design and Simulation of 2-stroke engines" written by Dr. 99 in the App Store What is it about? Have you tuned a two stroke and wondered when your exhaust and transfer ports need to open in order 2-stroke tuning software, the best and simpliest one can get! At Bimotion, our mission is since 1991 to develop user friendly commercial grade two stroke software, at an affordable cost for amateurs and professionals alike. To calculate vertical pixs/mm you need to select 2 known vertical distances. The Join the official "MikenBikes" Motorized Bicycle discord server! Tons of support and conversation!https://discord. 5 mm off the head and use 2 base gaskets which changes the port timing and compression ratio for better top end. 2-Stroke Calculator Features: 🔥 Engine volume capacity, dynamic compression ratio 🔥 Clearances, piston ring gap, head squish 🔥 Engine duration, porting, piston speed 🔥 Carburetor size, acceleration, potential top speed MOTORUN ENGINE TOOLS PRO is an essential tool for anyone looking to effectively and efficiently optimize engine performance. MOTA will accept a single-cylinder design, which will also cater for many multi's where 2, 3 or more cylinders of I have seen a few porting programs/ software, most are pretty expensive, more than the average person would want to spend but there are a few affordable options like “Porting Calculator v4. (1) enter the piston (port) height value and click "Calculate Duration" to get the open duration -or- (2) enter Calculate your angle areas, mean areas, or time areas in minutes, directly from the portmap image: Load png or jpg port map; Enter bore, stroke, conrod length and deck height; Mouse Enter the values for stroke, connecting rod length and port height (piston above BDC). Graham Bell Two Stroke Performance Tuning . After reading through gordon jennings 2 stroke findings (I know its old) one common thing kept coming up. Porting Calculator V4. The left side lets you see the peak power RPM if you know the transfer/boost port How I used the porting calculator to learn something very important about my engine concerning top RPM. 2 Stroke Fuel/Oil Ratio Calculator Calculate the needed fuel/oil ratio dependant on your oil, type of riding, max RPM, and type of cylinder cooling. html To edit a copy of this document, go to File at the top left of the page, and either download a copy (. Spectran. 99; Current Version: 1. Calculate 2 or 3-Stage exhausts. 2 Stroke Porting is an application for Android devices but you can also run 2 Stroke Porting on PC, below is the basic information of the application and shows you the specific methods to run that application on PC. The port timing diagram shows when each port opens and closes relative to the piston's top dead center and bottom dead center positions. This range provides a balance between optimal turbulence for good combustion and preventing detonation or engine knock. App Description. 6 for the piston position. It lets you quickly to optimize carburetion, ignition timing, spark and transmission ratio, when change, the App Detail » 2 Stroke Porting Calculator. Porting is art ( at least to me it is), a part of you when your finished with the cylinder so you either look good or you look like a mess by your My professional 2 stroke expansion chamber design software is more sophisticated than other programs that only use a few basic formulas. The answer is then calculated as 79. Porting in 2-stroke engines offers a range of benefits, primarily focused on enhancing performance and efficiency: Increased Power: By reshaping and optimizing the intake, exhaust, and transfer ports, porting improves airflow FEA (finite element analysis) and 2D & 3D CAD software add another 15 programs to that list. Top Example2. theory page to get a full understanding of iOS (iPhone)版2 Stroke Porting の最新バージョンを $4. html Calculate the correct dimensions for the bottle to resonate right at the RPM range before the engine gets "on the pipe" which is when there is a bad power dip which the bottle counters. Syndent goes a mile ahead than just selling you 2 stroke porting tools. This iOS(iPhone)용 2 Stroke Porting 최신 버전을 $4. I'm no porting expert, I just put the math into these programs. The figure below depicts cross sections for 3 typical configurations of tuned pipes as well as a straight pipe: Typical You got to love a 2 stroke engine first off, no other type should make any difference to you. hzt gydp hyrxa vaxwo mglbms vbo acaax yjj zuinw gegno