Customer Pinnacle Engines featured in New York Times

Hasselgren Dyno Testbed for opposed Piston Engine

AVL AC BrakeHasselgren Engineering was selected to provide design, manufacturing, assembly and testing services for the development of the prototype one-cylinder, four-stroke opposed piston gasoline engine. This prototype engine by Pinnacle Engines is aimed at the huge scooter and three-wheel auto rickshaw market in Asia.

Pinnacle Engines from San Carlos, CA was founded by Monty Cleeves in 2007.  Hasselgren Engineering provided resources in design consulting, manufacturing, fabrication, engine assembly, fuel management controls and dyno testing – a one-stop shop.  Hasselgren’s AVL testbed has provided over 500 hours of testing for the prototype engine.

See the New York Times article from March 31, 2011 for more details.

Small Engine Testing and Development

Single Cylinder Engine Development

One of the Hasselgren dyno test cells is currently being used for small high efficiency engine development with in-cylinder pressure combustion analysis and a 5-gas analyzer.

Controls have been adapted for an AC electric drive, temporarily replacing the water brake. This allows for much finer load control and motoring for friction studies.

Hasselgren has assisted several customers with novel engine concepts with design, manufacturing, assembly and testing services.

Porsche 911 GT3 R

Hasselgren recently rebuilt and ran the Porsche Le Mans 3.6L GT3 R M96/77 engine, with full access and calibration of the Bosch Motronic MS3.1 ECU.  The water-cooled, 13:1 CR restricted engine with titanium rods and lightweight aluminum pistons ran to 8700 rpm on the dyno, as shown in the video below.


Joshua AVL control room

Hasselgren Engine Calibrator and Builder, Joshua, trained at ANDIAL with PMNA experience, headed up the project to supply a completely refreshed and fully tested engine to the customer.

Automated Engine Dyno Testing

State of the art Dyno control and electronics, the AVL/Froude development test cell features high-capacity data acquisition, custom automated test sequences, precision fuel flow measurement and conditioning, and track simulation capabilities.

Test cell shown with a Porsche 997 for Grand-Am Racing