It was developed to allow the user to fully optimize the selection of engine components and engine settings for the ultimate engine build. Let us share our years of experience and numerous software packages to enhance your efficiency and engine performance efforts. Therefore, a wide variety of camshafts are produced to provide various valve. Our unique parametric profile cam designs are part of our proprietary total engine design equation the brain child of indywinning engine designer dick jones.
Apr 24, 2017 barry kluczyk answers the top 10 basic questions regarding camshaft design and theory. Custom camshaft design engineering andrews products. These camshafts have a unique design that runs like. Motion softwares lobeprofile libraries mark another first for the performance industry. Nov 01, 2009 isky racing camshaft design secrets chp insider. The camquest application is currently offline for maintenance and updating.
Crower has been designing and grinding hotstreet and cuttingedge full race profiles for over 50 years. Cam profile designs are furnished with the lift and design data along with. From the advent of computer design in the early 1950s and 60s, to roller lifters and cams in the 60s, to antipump up lifters and shaft rockers in the 70s and 80s, to new profiles and big journal sizes of the 90s. Professional cam and perfect cam is the ideal and complete software for engineering, team, tuner, etc. Howards cams recommendation form for custom camshaft design by michael johnson august 06, 2015 with any powerful engine, the camshaft holds the key to making poweror not making power. The rocker arm transfers the motion of the valve lifter riding on the cam lobe to the valve and increases the lobe lift by the amount of the rocker ratio. Professional cam and perfect cam software to design the cams. It took experience with the software coupled with dyno testing to become highly confident that what was designed on the. Virtual engine 2000 race engine simulation software. Its all about balance and correctly matching the cam with the cylinder heads, compression ratio, intake and exhaust systems, and rpm range where you want the engine to produce the most torque and horsepower. Camshafts are the most critical part of your engines performance. Engine building software engine builder professional. This program enables the camshaft engineer or advanced builder to measure camshaft profiles on a dedicated test stand or. Aug 07, 2012 the camshaft is often referred to as the heart or the brain of a performance engine.
Dynomation6 lobe profile library motion software, inc. With comps camquest camshaft selection software provides a set of camshaft recommendations from comps extensive catalog all based on several integral factors, including the engine make and model, the type of lifter used, nitrous injection andor forced induction, and the intended usage. The legendary ed winfield was one the early pioneers in grinding camshafts. Ingram engineering cam profile designs is a custom cam profile design service for camshaft grinders, engine builders, and anyone needing a specific cam profile design. New software design programs soon came out that cut the design time down to hours and enabled grinding a. Bennett racing engines has set records and won championships in almost all forms of drag racingworldwide. Mar 22, 2007 the science behind camshaft design is as advanced as anything in a race car, so most of usincluding experienced engine buildersdepend on the manufacturer to help spec the right cam for a. Cam design and analysis programs camshaft calculations. Camshaft selection and design choosing the right cam from all of the possibilities that are out there can make a significant difference in how well an engine performs.
The process of designing, testing, and manufacturing a camshaft is time consuming and costly. Understanding camshafts camshaft basics camshaft design. Virtual engine dyno is a computer software program used by engine shops and performance enthusiasts to simulate building, modifying, tuning and dyno testing automotive engines before component purchases and engine assembly. This revolutionary new cam design program is so computation and memory. This is due to the dramatic effect that valve timing events have. They feature the most aggressive camshaft lobe profiles and withstand the highest valve spring pressures. Isky racing camshaft design secrets chevy high performance. This is a billet core camshaft that is designed to be used with a 2400cc or larger engine for drag racing and aggressive street and road race applications. Carmakers are downsizing engines to boost fuel economy and to reduce co 2 emissions. Engine builder professional is an easy to use engine building software tool for 8, 6, 4, 10 and 12 cylinder engines. Camshaft selection and design engine builder magazine.
Cam design service also includes reverse engineering where original calculations are no longer available. Performance camshaft tuning circle track magazine hot rod. Cam design and analysis is critical in highperformance engines. Multiple carburetors recommended for both 4 and 6 cylinder engines. To generate the best profiles available, we have developed our own cam design software to tackle any design constraint of modern times. And generates cam specs for hydraulic or mechanical, flat tappet or roller profiles. Welcome to the future of dyno simulation software virtual engine dyno is a computer software program used by engine shops and performance enthusiasts to simulate building, modifying, tuning and dyno testing automotive engines before component purchases and engine assembly. We use high rocker ratios very effectively with profiles designed around them, but they are not an effective cureall for every profile. Camshaft math to design competitive performance engines. May 14, 2020 another trend impacting camshaft design is the move to smaller, turbocharged engines. This calculator will help you rapidly determine the perfect camshaft for your application. Computer program to measure cam profiles camshaft profiles by hand, or analyze graph and report several. To allow more airflow into your engine, a camshaft is designed with a profile or curve that provides a specific amount lift to the valve. Andrews engineers can work as an integrated team effort to support development of your prototypes and experimental camshafts.
Camshaft selection utility pick the best camshaft and. Indy car, nascar, usac sprints, world of outlaws, dirt latemodels, scra sprints, score. And camshaft guys are really secretive about how they. Development of an interactive camshaft design tool. Advertised duration figures are not reliable numbers when trying to compare one brand to another for these reasons. The better we understand how each of these terms affects an engine, the better armed we are to choose the best camshaft. To produce a high performance camshaft, the cam begins as a mathematical computation to which manufacturing tolerances are added. It is intended for engines that produce between 300400hp. Generally speaking the majority of cams will fall between 98 and 120 degrees. This enables one to zero in on the best camshaft profile, lobe spread, rocker ratios, cylinder head porting, intake manifold geometry and exhaust header design to come up with the optimum set up for a particular application. Camshaft basics from the february, 2009 issue of chevy high performance by bob mehlhoff. These camshafts have a unique design that runs like a higher lift camshaft, but meets stock lift rules. More life and duration, combined with faster opening and closing valves, mean greater air flow. However, we have a variety of other channels to provide you with a personalized cam recommendation from one of our knowledgeable, highly trained and experienced technicians.
In fact the software allows, to design valve lift law, to calculate cam profile for the main type of valve train system, to verify the valve train system with the spring load calculus and also to analyze the geometry of. This range of camshaft is more for engine design rather than for camshaft replacement the engine most be designed and built with the design of the camshaft in perspective. For this reason, we need to learn a bit more about lift curves before we can discuss how lobes are designed. For more than three decades, computerized cam program development at andrews products has been a continuous effort. Comp cams innovative camquest camshaft selection software.
Barry kluczyk answers the top 10 basic questions regarding camshaft design and theory. Camshaft technology andrews products is a one stop shop for camshaft design, software and related technical training to support your complete development process from basic designs to finished parts. Oct 12, 2018 that new toolyour new secret weaponis the new summit racing cam timing calculator. Camshaft lobes are designed by starting with the lift curve, and working backwards to determine the lobe shape that will produce the lift curve. That new toolyour new secret weaponis the new summit racing cam timing calculator. This is the angle between the inltake and exhaust camshaft lobe peaks described in camshaft degrees. Rapidly opening valves and higher valve lift is possible with a roller camshaft design. Carburetor recommended for v8 engines, size of carburetor depending on engine. Jan 24, 2015 net valve lift is a function of camshaft lobe lift and rocker arm ratio.
While mechdesigner software is particularly suited to packaging machine design, it can also. In game, time advances at the pace the player chooses and pauses automatically for events and occurrences. Camshaft lobe design tilden technologies camshaft design. Whether were talking about axle ratios, compression, carburetor size, timing, or e. The summit racing cam timing calculator does two things. The various camshaft grinds carry identifying designations such as. Our camshaft design programs allow end users to examine multiple designs in a short period of time, minutes.
Its greek jargon, or street parlance to the rest of the world, but it often defines us. Join facebook to connect with controlled induction and others you may know. It converts duration, lobe separation, and advance into the four individual timing events that will ultimately dictate engine performance. Professional cam and perfect cam software to design the. This is due to the dramatic effect that valve timing events have on a fourstroke internal combustion engine. However, if you have particular needs, we do offer inhouse cam design for the most demanding applications. Lobe lift sometimes called cam rise is the height of the eccentric portion of the cam lobe above the base circle. Consulting, cam design, engine and cam design software. The original 34 race cams are the forerunners of todays streetperformance grinds. As with their solid flat tappet camshaft cousins, they are noisier than hydraulic camshaft. The ultimate in engine simulation software welcome to the. Naturally aspirated, turbocharged, supercharged and nitrous engines, 2 and 4 valve cylinder heads using pump gas, methanol, e15 or e85 fuel.
However, if the engine is in the car, and you wish to remove the springs without removing the cylinder heads, you can purchase the isky valve spring removal kit fig. Hertz stress which can be tolerated in racing cams and cam tappets made from. Imagesummit racing how the cam timing calculator works. Cam design also called cam profile design is the art of getting maximum performance from a cam gear, making it fast and reliable. Cat cams has a large database of cam designs available, ready for grinding to suit your custom project. In the upper area, calculate individual valve events and lobe centerlines by entering intake and exhaust duration, lobe separation and advance. The stock lift series was designed for oval track applications that have to meet stock lift requirements. We would normally recommend that you use specialist software for the design of engine camshaft because there are special requirements for valve timing cams. The term likely originated in the 50s as the burgeoning hotrod industry was modifying ford flatheads to drag race on airport runways and attempt topspeed runs on dry lake beds. The correct procedure is to design the desired valve motion, then back out the required tappet motion. Howards cams recommendation form for custom cam design. This is a simple procedure and is easily done on a workbench.
Our camshaft design programs allow end users to examine multiple designs in a. While mechdesigner software is particularly suited to packaging machine design, it can also be used to design camshafts for engines. Cam designs often use conjugate cams for improved performance. Roller camshaft profiles allow maximum performance. These designs utilize fast lift rates to create maximum power while meeting your racing class lift rule requirements. In this study, the effects of modifying the restrictor design, intake runner length, intake camshaft profile, exhaust geometry, and silencer design were measured using a transient dynamometer. Dick jones rick jones camshaft technologies prototype camshaft design and manufacturing mainly used to verify the accuracy of dicks equations with his old school engine building buddies, and prove the cams performance. Camshafts use a combination of separation angles, lift, duration and lobe accelerationramp rates to create what is called a cam profile. Ability to show comparison cam shape lift, velocity, accelleration and jerk on the design page. Manufacturing files andor master cams can be provided for new designs. They have to meet much tougher corporate average fuel economy requirements in the years ahead, and one of the ways of accomplishing that is to replace v8 and v6 engines with. Net valve lift is a function of camshaft lobe lift and rocker arm ratio.
Camshaft design system is used to modify the valve acceleration curve, calculate the valve lift and generate the cam profile with special features for frequency analysis, piston valve. The science behind camshaft design is as advanced as anything in a race car, so most of usincluding experienced engine buildersdepend on the manufacturer to help spec the right cam for a. Another trend impacting camshaft design is the move to smaller, turbocharged engines. Camshaft art and science you get out what you put in engine. Camshafts aftermarket high performance cams racing cams. The camshaft is often referred to as the heart or the brain of a performance engine. New software design programs soon came out that cut the design time down to hours and enabled grinding a master using nc punch cards in a day. Our custom cam designs have powered winners in almost every form of racing you can think of. Pdf camshaft design for an inletrestricted fsae engine. Cam pro plus is a highend software and sensor package specifically designed for measuring and analyzing lifter and valvemotion profiles. So in this issue, were going to do some heavy bench racing and delve into camshaft basics. Chevrolet 396502 mark iv ibeam howards cams ud63852200. Controlled induction cam design selection software the.