User manual GAMES PC DESKTOP DYNO 2000

[. . . ] 535 West Lambert Road, Building "E" Brea, California 92821-3911 Voice: 714-255-2931, Fax: 714-255-7956 Web: www. motionsoftware. com Email: support@motionsoftware. com Dyno2000 Simulation v3. 10, 5-/01 Release 5 Dyno2000 Advanced Engine Simulation--1 MOTION SOFTWARE, INC. SOFTWARE LICENSE PLEASE READ THIS LICENSE CAREFULLY BEFORE BREAKING THE SEAL ON THE DISKETTE ENVELOPE AND USING THE SOFTWARE. BY BREAKING THE SEAL ON THE DISKETTE ENVELOPE, YOU ARE AGREEING TO BE BOUND BY THE TERMS OF THIS LICENSE. IF YOU DO NOT AGREE TO THE TERMS OF THIS LICENSE, PROMPTLY RETURN THE SOFTWARE PACKAGE, COMPLETE, WITH THE SEAL ON THE DISKETTE ENVELOPE UNBROKEN, TO THE PLACE WHERE YOU OBTAINED IT AND YOUR MONEY WILL BE REFUNDED. [. . . ] One common modification is dividing the plenum into a pseudo dual-plane configuration. While this does increase signal strength at the carburetor, uneven firing does not allow 2nd degree of freedom resonance. This modification can cause sporadic resonances to occur throughout the rpm range with unpredictable results. Spacers between the carburetor and plenum are also commonly used with single-plane manifolds often with positive results, particularly in racing applications. Spacers typically increase power for two reasons: 1) By increasing plenum volume they tend to reduce unwanted pressure-wave interactions, and 2) a larger plenum improves airflow by reducing the 50--Dyno2000 Advanced Engine Simulation Tunnel-Ram Manifold Modeling angle the air/fuel must negotiate as it transitions from "down" flow through the carburetor to "side" flow into the ports. While there is no way to use trend testing to evaluate the effects of a divided plenum, spacers can be partially simulated. The increase in plenum volume tends to transform the single-plane manifold into a "mini" tunnel ram, so horsepower gains tend to mimic those obtained by switching to a tunnel ram design (i. e. , performance improvements, when found, usually occur at high rpm). Since the single-plane manifold typically reduces low-speed torque and improves high-speed horsepower, it is often the best compact manifold design for applications where wide-open-throttle engine speed rarely falls below 4000rpm. If the engine commonly runs through lower speeds, a dual-plane, individual runner, or tuned-port injection system will usually provide better performance, driveability, and fuel economy. Tunnel-Ram Manifold--This intake manifold is a single-plane induction system designed to produce optimum power on all-out racing engines. The advantages of the tunnel ram derive from its combination of a large common plenum and short, straight, large-volume runners. The large plenum has plenty of space for two carburetors, potentially flowing up to 2000+cfm. The large plenum also minimizes pressure-wave interaction and fuel distribution issues. The short runners can be kept cooler than their lay-flat, single- and dual-plane counterparts, and they offer a straight path into the ports, optimizing ram-tuning effects. Applications for the tunnel ram are quite limited because of its large size; vehicles using tunnel-ram manifolds usually require a hole in the hood and/or a hood scoop for manifold and carburetor clearance. While a protruding induction system may be a "sexy" addition to a street rod, in somewhat more compact single-carburetor configurations, the tunnel ram offers very little potential power over a well-designed, single-plane manifold. Only at very high engine speeds, with multiple carburetors, This Weiand/Holley BB Chevy tunnel ram manifold is a singleplane induction system designed to produce optimum power on allout racing engines. It has a large common plenum and short, straight, largevolume runners. The tunnel ram manifold menu selection has the potential to produce the highest peak horsepower of all the naturallyaspirated manifolds listed in the Induction menu. Tunnel-Ram Manifold Dyno2000 Advanced Engine Simulation--51 Individual-Runner Manifold Modeling Individual Runner Manifold A manifold that connects each cylinder to a single carburetor barrel with no interconnecting passages for shared flow is considered an individual (or isolated) runner system (I. R. Multiple Weber or Mikuni carburetor systems are wellknown examples of this type of induction system. manifold was designed for early OHC Pontiacs. will the advantages in the tunnel ram contribute substantially to power. This tunnel-ram selection can also accurately model fuel-injection systems with large, individual stacks. [. . . ] Top Dead Center or TDC--The position of the piston in the cylinder bore at its uppermost point in the stroke. Occurs twice within the full cycle of a four-stroke engine; at the start of the intake stroke and 360 degrees later at the end of the compression stroke. Torque--The static twisting force produced by an engine. Torque varies with the length of the "arm" over which the twisting force is measured. [. . . ]