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Benefits of a QA1 Carbon Fiber Driveshaft

What sets a QA1 carbon fiber driveshaft apart from the rest?

In-House Design

In-House Design
QA1 designs and models each driveshaft in-house to meet very specific performance goals. Simulations help to ensure the design is optimized before getting to the prototype phase.

 

In-House Filament WindingIn-House Filament Winding for Customized Driveshafts
By having control over the entire filament winding process in-house, QA1 is able to customize tube length, wall thickness and pattern, enabling our driveshafts to be designed and wound for specific applications. Because every vehicle is different based on use, driveline, engine and other upgrades, QA1 is also able to design custom application-specific driveshafts. Instead of cutting a premade tube to length, we make each driveshaft specific to what it's being used for.

Wound with Exclusive 3M™ Matrix Resin
3M™ Matrix Resin uses spherical nano scale silica that provides improved abrasion resistance and longevity, higher compressive strength and minimal water absorption for increased torque capacity and longevity. This resin is exclusive to QA1 performance driveshafts and gives them their distinctive blue tint.

Thoroughly Tested


Thoroughly Tested Throughout Manufacturing
Not only are the finished driveshafts torsion tested, balanced and serialized, but the materials are tested throughout the process as well. Some tests include tension, compression, shear, three point bend and surface roughness. We also analyze the composites for fiber volume, layer analysis and to avoid potential void content.


High Speed Balanced for Smooth Operation
Precision balance tolerance ensures a vibration-free shaft, which also extends universal joint life.

Reduces Noise, Vibration and Harshness (NVH)
Harmonic testing is done to determine the natural frequency of the driveshaft and a modal analysis is performed to ensure the composite driveshaft meets the applications’ requirements for NVH.

Track TestedTrack Tested
QA1 works very closely with several professional race teams from across the country for feedback and to ensure the driveshafts perform on the track. This allows for continuous improvement, as well as data gathering for future designs. 

Increased Safety

 

Increased Safety
Most of us have seen the damage that a steel or aluminum driveshaft can do to the cockpit of a racecar. In the unlikely event of a failure, a carbon fiber driveshaft shreds like a broom, so there is no damage to the racer or other parts of the car.


Rotational Acceleration vs Torque GraphQA1 Performance Driveshafts vs Steel Driveshafts
A QA1 carbon fiber driveshaft accelerates faster than a steel driveshaft due to its lighter weight and lower inertia. In this test, the steel driveshaft (blue line) weighed 15 lbs with a wall thickness of 0.083". In contrast, the QA1 driveshaft (red line) weighed less than 6.5 lbs, even with a thicker wall of 0.110". The lighter QA1 driveshaft was capable of handling over twice as much torque as the steel driveshaft even though it is less than half the weight.


Driveshaft Torsion Test DataQA1 vs. Dirt Late Model Competitors
This graph shows torsional test data collected using QA1's in-house custom torsional dyno for 38" dirt late model driveshafts. The horizontal axis is displacement or amount of twist in degrees and the vertical axis is amount of torque in lb*ft. Each line represents a different driveshaft and each part was tested to failure. You can see that some of the lines are fairly straight up to a certain amount of torque then they start to curve. The point where the curve starts is actually where the driveshaft starts to yield or take a permanent set or twist. If the part was removed and checked anywhere in the curved area, the end yokes would be twisted out of phase. This is especially apparent for steel or aluminum. QA1's carbon fiber driveshaft is represented by the red line.


QA1 2.25" Carbon Fiber Driveshaft vs. Competitor 2.25" Carbon Fiber and Steel Driveshafts
2.25 Driveshaft ComparisonThis graph shows torsional test data collected for 38” driveshafts with a 2.25” or 2” O.D.. The horizontal axis is displacement or amount of twist in degrees and the vertical axis is amount of torque in lb*ft. Each line represents a different driveshaft and each part was tested to failure. The + on the graph represents where the competitors’ driveshafts start to yield or take a permanent ‘set’ or twist, where the end yokes would be twisted out of phase. QA1’s driveshaft did not fail or take a set, still keeping its original form. This testing shows that QA1’s carbon fiber driveshafts are far stronger than other competitors’ carbon fiber driveshafts, and steel driveshafts as well.

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