GT-POWER is used for guiding the development of intake and exhaust systems, especially with respect to acoustic performance. The advanced Navier-Stokes based solver in GT-POWER intrinsically captures the pressure wave dynamics within the simulated system. The pressure wave dynamics result in noise being propagated from the intake and exhaust openings of the engine, and GT-POWER is capable of predicting both the levels and quality (frequency content) of the noise from the exhaust tailpipe and intake snorkel. Advanced 3D pre-processors allow for easy integration of even the most complex mufflers, air boxes, and more.

Audio Files Created by GT-POWER

The 4 links below are examples of audio files created by GT-POWER simulations

The Four Stroke Design software with the insertion of only the fundamental data of the engine allows you to analyze the efficiency of the intake and exhaust geometries, in function of the engine valve timing, and to quickly calculate the geometries or the valve timing amelioratives to optimize the performance of the engine in based on your needs. This free download will expire 6-30-2010. This is the same as the last released version of Algor's PipePak (v23.1), but has been renamed to Autodesk Piping Design so that Autodesk can test its popularity and learn about industry needs.

Motorcycle Shifting:

Free shipping & handling on orders over $99. Oval Exhaust; Forced Induction. Stainless Headers Mfg., Inc. Products are for off-road only. Exhaust Header Design software, free downloads. Exhaust Header Design shareware, freeware, demos: EximiousSoft Banner Maker by EximiousSoft, Flashloader Switcher by GIAC, Creative Design Chartmaker by TJW etc. Header Modeling Blocks allow you to prototype and build out a complete exhaust headers prior to cutting and welding anything. Turbo Manifold Modeling Blocks simulate use of stainless elbows for turbo fabrication and Full Exhaust Modeling Blocks help when laying out tricky sections of full exhaust systems as well as downpipes and cold air intakes.

/wp-content/uploads/2014/12/MotorcycleShifting3.mp3

Open Wheel Race Engine-Driveby:

/wp-content/uploads/2014/12/OpenWheelRaceEngine-driveby3.mp3

Truck Idling:

/wp-content/uploads/2014/12/TruckIdleing3.mp3

Engine Accelerating:

/wp-content/uploads/2014/12/EngineAccelerating3.mp3

Product Highlights

• Analysis performed within GT-POWER, the industry standard engine simulation, used by every major engine manufacturer
• GEM3D, CAD based preprocessing tool allows for quick and reliable creation and meshing of complex geometries
• Quickly model complicated components, including stamped shell mufflers, molded airboxes, and irregular plenums
• Mesh models in Cartesian 3D and capture 3D acoustic effects in 1D system simulation run times
• Includes GT-SpaceClaim, CAD tool to import CAD files from all major CAD file formats, repair models, extract internal flow geometries and build new geometries from a blank sheet
• Navier-Stokes based solver for detailed analysis, and linear solver for fast concept analysis
• Complete analysis, including meshing, can be run in batch mode as part of optimization processes

Advanced Features and Applications

• Steady-state or transient analysis
• Naturally aspirated, Turbocharged, and Supercharged engines
• Simulate pass-by, engine run-up, and vehicle drive-away
• Green and Smith flow noise model
• Model porous pipes, perforated pipes, arbitrary baffles and baffle perforates
• Model sound absorbing materials (advantex, rock wool, etc)
• User-input transfer functions for prediction of noise levels at driver’s ear, or other locations
• Advanced post-processing displays systems nodes and anti-nodes, as well as mode shapes
• Generate Campbell diagrams, frequency and order waterfall diagrams, order cuts
• Generate audio output or predicted sound for sound quality assessment
• Advanced acoustic compressor model, unique to the industry
• Capability to parameterize properties of parts inside of mufflers, (e.g., baffle locations, perforate properties, etc.) for optimization with GT-SUITE optimizers or by third party optimizers

Related GT Applications

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PipeMax Header Design Software

If you're not entirely comfortable with the mathematics of engine performance you'll really appreciate Larry Meaux's PipeMax Header Design software from maxracesoftware.com. This comprehensive program predicts engine performance based on your input specs and it also calculates all of the optimum intake and header dimensions for maximum performance. For less than fifty bucks it also computes all the relative rod angles, piston positions, velocities and other important information that will allow you to make sound component choices based on your specific application and operational requirements. It's a 'Must Have' for anyone brainstorming new engine combinations.

Calculating Header Dimensions with PipeMax

PipeMax is a popular software program available on the internet and used by numerous successful race teams. It’s a comprehensive, but easy to use engine parameter calculator offered by Meaux Racing Heads. You can download it for a reasonable price directly from their website at www.maxracesoftware.com. It is primarily a header design program, but it incorporates enough input parameters to function as a basic engine simulation program and it does calculate torque and horsepower output based on VE and the recommended header specs. It offers a wealth of good information about header dimensions and the proper design of headers to accommodate wave tuning. Users input the usual engine information along with details about their cylinder heads and camshaft and it calculates optimum primary pipe diameters and cross-sectional areas, primary tube lengths and collector specifications for optimum performance. The results screen displays dimensional values for a single primary pipe or 2 and 3 step header designs. It provides recommended pipe diameters and lengths for the primary pipes and the collectors. It also displays the best and worst specifications so you can avoid them. It calculates primary pipe harmonics for the first through eighth reflected wave and collector harmonics with mufflers and tailpipes. All of these specs are delivered in US units and metric units automatically.

Exhaust Header Design software, free download 2012

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Exhaust Header Design software, free downloads

The program is based on projected VE and it has a function to estimate VE for your particular engine specs. It allows you to select a dyno acceleration rate for the simulation and you can specify the mean flow velocity to be used in cross-sectional area computations. It is quite inexpensive at $45 and it makes a perfect complement to other simulation and evaluation programs you might be using. PipeMax pinpoints the ideal header dimensions for your engine and simplifies header design. If you study it closely it teaches you a lot about the effects of pressure wave activity in the engine’s inlet and exhaust systems. You can model your application’s mathematical header requirement in PipeMax to determine the optimum dimensions when modeling your vehicle’s actual headers with the icengineworks header modeling system. With PipeMax selected dimensions, it is easy to manipulate the modeling blocks to meet the targeted requirements. It’s not often that two separate systems complement each other so completely, but in this case it’s clear that each brings a lot to the party and the end result is the best possible exhaust system for you specific application.