We provide top quality reliable gearboxes called Propeller Speed Reduction Unit’s (PSRU’s) to convert automobile engines for use in Experimental Homebuilt aircraft.
We provide top quality reliable gearboxes called Propeller Speed Reduction Unit’s (PSRU’s) to convert automobile engines for use in Experimental Homebuilt aircraft.
Our Firewall Forward Packages provide builders with an affordable alternative to expensive certified engines that are more reliable, burns less fuel, and are cheaper to maintain. We have converted Subaru 4 and 6 cylinder engines, Mazda 13B Rotary engines, and all of the Chevrolet series of LS engines. If you want to use a different engine call us. Our PSRU’s can be adapted to just about anything between 150 HP to 550 HP.
The new 300Z is designed for use with inline 4 and 6 cylinder engines as well as V6 and smaller V8 engines.
Located at the Hillsboro, Texas airport (KINJ) we demand perfection while producing a solid, dependable product.
We no longer have a reliable local source for overhauling these engines. Instead we will provide our 250Z propeller speed reduction unit with fully automatic centrifugal clutch kitted together with all the parts needed to convert your Subaru 2.5L or 3.0L engine.
Have a question about our PSRUs, firewall forward packages, or parts? Share your details and tell us about your aircraft project.
You can also email us at
Stuart@autopsrus.com
1000 Airport Blvd
Hangar 104
Hillsboro, TEXAS 76645
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