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AeroConversions Engines

AeroConversions Products

AeroConversions is a subsidiary of Sonex Aircraft LLC. They sell complete VW conversion engine packages mainly for the Sonex Aircraft builder community (or other suitable aircraft). The company has been active in the homebuilt aviation market since 1998 and are committed to cost effective, efficient aircraft and engine kits.

AeroConversions is a product line of high-quality powerplants, systems and parts for use in recreational aviation. Their product designers and engineers are dedicated to providing simple, elegant and low-cost solutions for sport flying. Simply put, AeroConversions products provide the best performance per dollar, giving power to the Light Sport Pilot / homebuilder.

VW Derived Engines

AeroConversions uses the venerable four cylinder air cooled VW engine as basis for their aircraft application.

AeroConversions 80 HP

AeroVee 80 hp

This is a complete VW conversion engine, it comes as a complete kit. Which, you will need some engine maintenance experience, can be built in 12 hours, but who is in a hurry? An assembly/ installation manual is included together with an instruction DVD.
The AeroInjector (providing maximum power and optimized fuel economy in a simple, reliable carburetor design) is also part of this engine kit.


The AeroVee features dual ignition, using two spark plugs per cylinder and including four independent, solid-state ignition modules, all driven directly off the crankshaft/flywheel assembly. The AeroConversions secondary electronic ignition provides extremely reliable starting under the toughest conditions, while adding 'dual-plus' ignition reliability by completing the AeroVee's quadruple redundant ignition system.

Below a short specifications list of this engine:

AeroVee Engine 80 HP Specifications
Maximum RPM3400 RPM
Displacement2180 cm3
Bore x Stroke92 x 82 mm
Compression RatioAVgas 8.0:1, MOgas 7.0:1
Oil Quantity / Type2.75 US Quarts SAE 20W50 Multigrade or Semi-Synthetic
Weight160 lbs less oil/ exhaust system

See the website of AeroConversions for more (latest) detailed information.

AeroConversions 80 HP

AeroVee 100 hp Turbo

The AeroVee Turbo is rated as a 100 horsepower engine at sea level and yields significant performance enhancement to the Sonex line of aircraft without breaking the (your) bank. Just like the normally aspirated AeroVee 80 hp, the AeroVee Turbo can be installed in any suitable homebuilt aircraft design. Click for the turbo assembly/ installation manual, for a complete video presentation about this engine click on AeroVee Turbo Video.

The AeroVee Turbo is also offered as a complete kit package. For those wishing to upgrade, packages are available to convert their existing 80 hp AeroVee engine to the turbo configuration. Click for the turbo upgrade manual.

AeroVee Turbo Engine 100 HP Specifications
Maximum RPM3400 RPM
Maximum MAP40 inHg (2 min), 35 inHg cont.
Displacement2180 cm3
Bore x Stroke92 x 82 mm
Compression RatioAVgas 8.0:1, MOgas 7.0:1
Oil Quantity / Type3 US Quarts SAE 20W50 Multigrade or Semi-Synthetic
Weight185 lbs less oil

As you can see, these engines are the same and the turbo kit is really an add-on to the basic engine.


More detailed information and history about the VW air cooled engine can be found at its Wikipedia page.

Company information

AeroConversions can be visited and reached at:

AeroConversions / Sonex Aircraft, LLC
511 Aviation Road
Oshkosh, WI 54902 USA
+1 920-231-8297
See contact page
www.aeroconversions.com www.sonexaircraft.com

Text and images used with permission of Sonex Aircraft LLC.

Written by EAI.

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