Designed especially for smaller sized and high-performance engines, the XS water brake is recommended for smaller engines up to 12, RPM and HP. Stuska dynamometers offer equal testing capabilities in either direction of rotation. For more creative applications, units can be supplied in a vertical position.
Torque arm lengths: 3. The XS dynamometer, trunnion bearings, load control valve, tubing, fittings, tachometer, cable and drive installed on dyno, and complete hydraulic torque measuring system with gauge having full scale reading to match brake capacity or engine output. Installation dimensions, operating instructions are also included. Click HERE for a brochure. Stuska products are now represented by the SuperFlow brand. Specifications: Input Shaft:. A Typical Package Includes: The XS dynamometer, trunnion bearings, load control valve, tubing, fittings, tachometer, cable and drive installed on dyno, and complete hydraulic torque measuring system with gauge having full scale reading to match brake capacity or engine output.Just leave the engine at wide open throttle and go through the RPM range by adjusting the braking force.
YourDyno can acquire the data during a run and supports both manual and automatic brake control. The main challenge is the brake itself. The setup is quite simple once you have the brake. The Eddy Current brake is a popular professional brake and also more and more used by hobby racers with a bit of a budget.
Eddy brakes is the most popular brake among YourDyno users. It is easy to use, does not get worn out, there are no messy water or oil and is easy to control accurately. If you can afford it, Eddy brakes is the way to go! The more current you run through it, the more it brakes. The braking force can be very accurately controlled with Eddy Current brakes. As with the other brakes, the Eddy Current retarder needs to be mounted such that the load cell prevents the retarder from rotating around its axis.
You need two pillow bearings, one on each side of the brake. A popular alternative to eddy brakes is the water brakein particular for those testing engines at the crank. The braking is controlled by adjusting the water flow, which can be done manually or electronically. Note that the braking force is not determined directly by the valve opening, it is the fill level that determines the braking force. Water brakes are typically light and have the benefit that the heat generated is only heating up the water, which you can have in a very large container or cool down at low cost, so long runs and very high horsepower can be sustained.
They have a unique property in that they can tolerate very high RPMs, so they can be connected directly to the engine crankshaft. Water brakes can be a bit tricky to control and the setup can be challenging. For high horsepower setups, water pumps of kW is normal! The valve also has some special requirements. Ideally we want a linear response, i. If you use a normal ball valve, this will not work, since a ball valve and many other valves have a very abrupt start and nothing much happens after the valve being half opened.
The valve is controlled either by a stepper motor or a powerful servo. Here are two examples of water brake valves. Notice the very small water passage for low valve openings.A dynamometer, or "dyno" as they're called by you and I, is a device for measuring force, moment of force torqueor power.
In the automotive world, they're used to precisely calculate the power produced by a vehicle's engine at the wheels. What you'll need: A dual-wheel truck axle with a working differential. Four truck tires. Welding gear. Metal beams. Maybe an eddy-current brake. Concrete, gravel and some steel tubing. A farm. The help of two guys from Norway who've already done this.
This guide. At the duo's outpost in the hinterlands northeast of Oslo, where they'd built two turbocharged LS1-powered Mazda RX7s, they had no way to properly — and safely — tune the cars before heading out on the road. Buy a chassis dyno? Hell no. Those damn things cost money. Big money.
Tens of thousands. But don't forget who we're talking about: Norwegians, the people who crushed Hitler's atomic-bomb program by staging commando raids on their own nuclear plant, which at the time was under Nazi occupation. Norwegians are the founding members of Team Live Badass. Enter the "redneck dyno. The project sprang to life from a single post on LS1tech :.
Read on as they take us through the sketchy, but ultimately successful build. Step one: Find a proper axle. Step two: Lock down the diff. The solution? Weld the bus's differential. Not so easy, as they found:. We finally got the rear axle into our shop. Rigged the axle on a pair of jacks and had a discussion of how to lock the diff.
We saw a hose sticking out of the diff. Only way to lock it was at that moment to weld it. We started cutting holes in the back of the housing so we could weld through them. Unfortunately the diff was sealed so we couldn't find the gears to weld.
That meant we had to tear it apart. So we did. It was hell of a job and took three to four hours with rusted bolts, etc.Choose from a full array of products built with heavy-duty components for proven uptime and longevity — continuing a tradition of advancing your testing success since the s.
Ideal for a wide range of marketswater brake engine dynamometers churn water inside the housing and transfers energy by momentum exchange and water shear. The more water flowing through the dyno, the greater the braking force exerted on the device under test. Durability and performance up to 3, hp 2, kW counted on by over 2, facilities worldwide.
All the advantages of the DX, plus increased capacity — from 2, to 4, hp 1, to 3, kW. Receive the latest news from Taylor Dynamometer, and stay up to date with how you can get the most out of your dynamometers and testing equipment. All rights reserved. Language: Chinese Korean.
Request A Quote. Search for:.
Positorq Dynamometer Load Brakes
Unlimited continuous use No electrical requirements. Newsletter Signup Receive the latest news from Taylor Dynamometer, and stay up to date with how you can get the most out of your dynamometers and testing equipment.
Latest News Jul May Subscribe to Our Newsletter. Contact Us. Request a Dynamometer Quote. Dynamometer Test Cell Inquiry. Support Request.Some Dynamometers use water as a load mechanism during engine testing. Water flow proportional to desired applied load is used to create resistance to the engine or motor.
A controlled flow of water is directed at the absorber center, and via centrifugal force, is expelled towards the outside of the dynamometer and into the stator. As the water hits the stator, it decelerates, causing an applied load to the input device. Through the water's continual acceleration and deceleration, load may be controlled and measured. This is a very effective and safe way to measure the performance of an engine running under a controlled load. The dynamometers feature water as a braking mechanism, or absorberhence the name waterbrake.
It is just the dynamometer and not the computer, which can still be purchased very easily. The dyno was made by precision dyno racing for ESP emissions testing. Right now the dyno is set up for hp max but with a different PAU can handle much more horsepower.
This is a great tool to test run in your performance engines. This water brake was used a couple of times to test a 29 Hp electric motor, it is rated for Horsepower and Ft-Lbs of torque.
How to build your own dyno for just $2,000
It was determined to be too larger for the application. This unit is approximately 12 years old, but has spent most of its life on a shelf in a climate controlled shop.
This unit has a built in tachometer on the end, which will allow for RPM to be measured. This unit is still serviceable and the needed equipment to make this fully operational can be purchased through Go Power or from any source that sells load sensiing equipment. Water consumption is around 50 GPM at full load. The max RPM is continuous and 10, intermittent. Uses a six cylinder GM motor to power the Dyno.
Includes many accessories. All parts and adaptors are available from SuperFlo. Go-Power D water brake dynamometer serial : DH Dual rotor.
Max HP Unit can be set up as a fixed base or as a portable setup. It comes with a splined input shaft to mount up to most bell housings. This unit is still sold new through Stone Bennett Corporation. This unit was in a laboratory setting and is in perfect, near new condition. It comes with three sets of digital instrumentation to monitor the dyno and engine mounted in a roll around consol.
There is a load cell and a tachometer pickup on the unit that hooks right into the instrumentation and is in excellent working condition. Operation manual included. Please contact me with any questions not answered here in the description. These have 96" from one end of roller to the other end of roller. Fairly easy to hook up a horsepower and RPM sensor for digital readout. Analog dial display of HP and speed.
Pendant controlled load. Water brake dyno. This dyno was purchased new in and was still in the crate from its manufacture date of January We have used it for engine tuning, simulating light to medium loads. It is in very good condition.A water brake is a type of fluid coupling used to absorb mechanical energy and usually consists of a turbine or propeller mounted in an enclosure filled with water.
As the turbine or propeller turns, mechanical energy is transferred to the water due to turbulence and friction. The shock caused by the acceleration of the water as it passes from pockets in the stator to the pockets in the spinning rotor requires energy. That energy heats the water due to the friction as the water moves through the water brake.
Almost all of the horsepower of the system turning the rotor usually an internal combustion engine is converted into a temperature change of the water. A very small amount of energy is taken by the bearings and seals within the unit.
Therefore, water must constantly move through the device at a rate proportional to the horse power that is being absorbed.
The water enters in the center of the device and after passing through the pockets in the stator and rotor exits the outside of the housing through a controlled orifice.
The amount of loading is dependent on the level of water inside the housing. Some water brakes vary the load by controlling the inlet water volume only and have a set outlet orifice size depending on the desired hp to be absorbed and some control both input and output orifices at the same time which allows greater control over outlet water temperatures.
The housing is vented to the outside to allow air to displace the water as the water level in the unit rises and falls. Systems that require the torque of the system under test to be measured typically use a strain gauge mounted on a torque arm that is attached to the housing perpendicular to the input shaft. The strain gauge connects the torque arm to the frame assembly and keeps the housing from spinning as housing tries to turn in the same direction of the turbine.
Newton's third law. The amount of resistance can be varied by changing the amount of water in the enclosure at any one time. This is accomplished through manual or electronically controlled water valves. The higher the water levels within the brake the greater the loading.
Water brakes are commonly used on some forms of dynamometer but have also been used on railways vehicles such as the British Advanced Passenger Train. The Froude waterbrake is based on hydrokinetic construction or torque absorption. The machine consists of an impeller rotor which accelerates water outwards by its rotation.
The water has its velocity changed by a stator which causes the water to be returned to the inner diameter of the rotor. For a given mass of water, this velocity change yields a corresponding momentum change — and the rate of change of momentum is proportional to a force.
This force acting at some point within the rotor and stator is a distance from the shaft centerline, and a force multiplied by a distance produces torque.
From Wikipedia, the free encyclopedia. For the brake actuation method commonly used in vehicles, see hydraulic brake. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Play media. India: SAE paper Categories : Dynamometers. Hidden categories: Articles needing additional references from November All articles needing additional references Commons category link is locally defined.
Namespaces Article Talk.home made dyno info on the retarder fluid flyweel
Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file.The Model Dynamometer Model is a full-sized system specifically designed to evaluate braking performance characteristics up to Nm for automotive and light truck brake assemblies. This state-of-the-art machine incorporates a 2-disc inertia section combined with electric motor Inertia Simulation I-Sim capability to replicate actual operating conditions.
The Model is the perfect machine for running research and development test protocols on brake calipers, friction material, drums and rotors in a controlled test environment that has been proven to correlate with vehicle test data. The ProLINK control and data acquisition system allows manual or fully automatic unattended operation.
You may opt out by using the link Do not sell my personal information. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website.
We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies.
But opting out of some of these cookies may have an effect on your browsing experience. Necessary Necessary Always Enabled Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies.
It is mandatory to procure user consent prior to running these cookies on your website. Back to equipment. Model Performance Brake Dynamometer. Overview The Model Dynamometer Model is a full-sized system specifically designed to evaluate braking performance characteristics up to Nm for automotive and light truck brake assemblies. You are now leaving Link Engineering Link Engineering provides links to web sites of other organizations in order to provide visitors with certain information.