About Our Dyno
Dynocom Dyno
Synaptic 3 Engineering is proud to announce the acquisition of a new State of The Art All-Wheel-Drive Dynocom Dyno.
We've been researching dyno's since PRI (Performance Race Industries Trade Show) 2006, and since then we've become more and more convinced that the Dynocom Dynamometer is the right choice for our shop and our customers. It combines the capabilities of a roller style dyno with the controllability of a load based system.
Below we've compiled a list of questions that many of our customers will be asking...
Why did you chose a pod style Dynamometer rather than a roller?:
1) 1st off, Accuracy!
No roller style dyno can completely eliminate the affect of friction losses at the tire. Furthermore, horsepower numbers can be effected simply by the amount of tire deformation cause by ratchet strapping the car down. On high horsepower cars a simple click or 2 can increase or inflate dyno numbers, yet other times it is necessary to keep the car on the rollers.
Our dyno is physically connected to the driveline!
2) Safety!
There is no chance of a strap breaking, or your vehicle climbing off the dyno regardless of horsepower. You are physically bolted to the pods!
3) No Strap Damage!
Isn't a POD style dyno more time consuming to setup because you must jack up the car and remove the wheels?:
1. Setup times are actually similar.
Being the clever guys that we are, we came up with a solution to speed the process and offer some additional benefits.
When you pull into our shop bay you are actually driving over a small midrise lift. We simply raise your car with the lift, remove the wheels, attach the pods and we're ready to go.
2. There is a huge added benefit to our dyno setup, it's not uncommon for a mechanical problem to rare it's ugly head while on the dyno (better here than on the street!)
With a conventional roller style Dyno if the problem is underneath car one would have to unstrap the vehicle, move it off the dyno, take it to a lift, put it up, remedy the problem, drive it back, strap it down again, and continue.
With our setup we simply unbolt the pods, raise the car, inspect/repair the problem, lower the car, bolt the pods on and continue...This is great for Dyno Diagnostics!
What is Dyno Diagnostics?:
Dyno Diagnostics is where we can chase down elusive problems that only show up under load or under boost. We can look and listen as well as wirelessly log 51 channels of OBD2 data to the dyno. If the problem is under the car, we can raise it right then and there to fix it. The rate for dyno diagnostics is higher than standard methods but in many cases the time saved makes it a viable option.
Can you Dyno Bikes?
Yes! Each DC-POD is capable of using the patented dynamometer eddy brake and roller allowing conventional motorcycle dyno testing. Call for details...
So there you have it, this is a great tool for us and our customers.
If you want to delve further into the technical aspects of our dyno, please read on...
Who is Dynocom?
Dynocom is a company of many engineering breakthroughs. Dynocom was the first chassis dynamometer company to offer the following:
1st: Chassis dynamometer company to provide “True” high speed USB communication
1st: Chassis dynamometer company to incorporate high resolution 24 bit A/D for load cell readings
1st: Chassis dynamometer company to provide high performance embedded electronic system & software
1st: N. American chassis dynamometer company to engineer center-mounted-shaft-integrated, eddy brake design
1st: Chassis dynamometer company to provide 3D Virtual Drag Racing
1st: North American company to design and manufacture an eddy brake specifically designed for a chassis dynamometer (Patent Pending)
1st: Chassis dynamometer company to offer 3D mapping of
HP/Torque/Air Fuel
and more...
Dynocom’s DC-POD is a revolutionary Dynamometer that is vastly different from standard chassis roller dynamometers. The DC-POD bolts up to the vehicles wheel hub and eliminates the frictional drag forces due to tire to roll contact area and downward restraining force variations due to differences in ratchet strap hook ups common with many conventional roller dynamometers.
Dynocom’s DC-POD also differs from other competitor type units which typically use hydraulic brakes and pumps. These units use the hydraulic brakes to apply load and usually are low in inertia. Typically most competitors using this older technology claim that the low inertia allows their systems to magnify and see small changes in power variations. However with the technological advances in electronics, the semiconductor industry and metallurgical superconductive materials today, Dynocom has evolved our POD to use the latest in high power eddy-current retarders specifically designed for vehicle testing which was not previously possible just a few years ago.
These new patented eddy-current brakes, developed by Dynocom provide higher absorption capabilities for extended durations which was not previously possible. The latest generation in electrical eddy-current retarders not only provide higher load absorption but can be controlled at the speed of electricity which is of course many times greater than the current rate at which electro-mechanical systems can control hydraulics.
High Power Capabilities:
Maximum Horsepower ¹ 900+ P per pod (1800+ HP pair, 3000+ HP AWD)
Max Torque Absorption ² 2750 ft lbs per pod (5500 ft lbs pair)
¹ The actual maximum P is based n many actors including PM,operating mode,and system configura-
tion. The specified ax P is based n the braking torque at n operating speed of approximately 000 RPM.
² Max Torque is based on the maximum steady state braking torque of the integrated eddy brake.
Safe for AWD Transfer cases:
The use of high speed electronics and the latest eddy current brakes allow for the utmost in precise speed synchronization for modern vehicle AWD transfers cases and differentials and almost instant control currently unmatched with the hydraulic systems being used today.
All the benefits of a load based dyno with the ability to match a conventional inertia dyno pull:
With the advances in electronics measurement capabilities in each of our PODs the so called “low-inertia” effect the competition claims is advantageous is immaterial and can be dangerous. In fact, our PODs have a base inertia allowing them to be truly portable and the ability to do conventional inertia pulls without using the internal eddy-brake.
The constant base load can also limit any potential damages to the newer vehicles limited slip differentials and/or transfer cases. When doing steady state testing the base inertia of the system has no effect as illustrated by the following simplified basic formula negating frictional losses used by engineers:
T = I x f + F x d Or T = Torque due to Acceleration + Torque due to Applied Load
Where, T = Torque I = Inertia of Rolling Mass ( constant in most dynamometers )
F = angular acceleration of rolling mass
F = force applied
d = moment arm or radial distance force is applied to from center
Therefore not using any loading device other than the (Fxd) component would be zero and then only torque can be measured would be based on the angular acceleration and the inertia due to rotation of the rolling mass. This is how traditional chassis dynamometers measure torque with the absence of any other loading device. In steady state testing, the angular acceleration (F) is zero, since we are trying to hold a constant speed or power level, thus the torque due to acceleration has no effect in measuring torque and the only component used in measurement is the Torque due to the Applied Load or F x d. This component is measured using high speed electronics and a highly accurate load cell sensor. With the built in inertia the DC-POD system can run in basic inertia mode on battery power only for the electronics and computer.
In summary, Dynocom’s DC-PODs are the only portable units that can do both steady state testing and basic inertia pulls as with a conventional roller dynamometer.
