• Truyeart LS1 Engine for his RV-10 Starts for the first time! - Duration: 6 minutes, 48 seconds.

    • 7 years ago
    Another Geared Drives LS1 engine package for RV-10 roars to life for the very first time! The engine starts easily and runs at low RPM since it is not good for it to run without the load of a prop...
  • Roger Followell's Geared Drives LS1 Engine for Legendary P-51 - Duration: 2 minutes, 35 seconds.

    • 7 years ago
    Bud Warren starts the Geared Drives the LS1 Chevrolet firewall forward engine package with Geared Drives PSRU prior to delivery to its owner, Roger Followell. I heard the engine start up so I grab...
  • Larry Ketterlings P-51 Engine - Duration: 2 minutes, 26 seconds.

    • 7 years ago
    Geared Drives FWF engine package for P-51 at idle and run up very conservatively since we were testing ignition only and there was no prop installed. Note how smoothly the engine transitions from...
  • Franks Bearhawk Engine Test Run - Duration: 2 minutes, 7 seconds.

    • 8 years ago
    LS1 firewall forward engine package with Geared Drives spur gear PSRU built for Frank's Bearhawk airframe. Test run after 5 minutes at idle produced 145 degrees, 15 minutes 150 degrees, 20 minutes...
  • Geared Drives 200Z PSRU for Subaru - Duration: 31 seconds.

    • 8 years ago
    Test running the Geared Drives PSRU for Subaru on our test engine mule, Frankenstein. Running for eight hours this day, the oil temperature is cool enough you can wrap your hand around the oil fil...
  • Machining Geared Drives PSRU Billet Alum Cases - Duration: 50 seconds.

    • 8 years ago
    Cases start as a 100# chunk of aircraft aluminum and as the computer controlled CNC machine begins to carve out the rear case of our PSRU (gearbox) for our high HP units. First the inside of the ba...
  • Machining CNC Aluminum Cases - Duration: 59 seconds.

    • 8 years ago
    New cases of billet aluminum for Geared Drives PSRU are lighter, stronger, and place the Geared Drives PSRU at the very top of the industry in functionality, durability and beauty! Watch as this v...
  • Geared Drives LSJ Run Up for Tango Two - Duration: 2 minutes, 56 seconds.

    • 8 years ago
    Chevrolet LSJ 2.0L Ecotech supercharged 4 cylinder, designed and being tested for Florida's Team Tango-Tango Two airframe. This engine is currently being ground tested for use in experimental airc...
  • Geared Drives 200Z PSRU For Subaru - Duration: 2 minutes, 22 seconds.

    • 9 years ago
    At the time this was the worlds only Subaru on an RV9A using a hydraulic constant speed prop. This prototype unit has all of the same features of the original Geared Drives PSRU including its own o...
  • RV 10 Run up with Geared Drives FWF engine package - Duration: 5 minutes.

    • 9 years ago
    Note: battery was a little low...Bill Gipson of Conroe, TX runs his engine up, cycles the prop, and shuts it down for viewers. This was immediately after taxiing around the airport and filling up w...
  • Gipson's RV-10 with Geared Drives LS1 Engine Runup - Duration: 9 minutes, 15 seconds.

    • 9 years ago
    Bill Gipson of Conroe, TX runs his RV-10 with the Geared Drives PSRU and LS1 Firewall Forward Package built by Bud Warren. Notice that the engine runs great at any RPM. We are expecting fuel burn r...
  • Geared Drives PSRU for Subaru Prototype Test Run - Duration: 65 seconds.

    • 9 years ago
    By popular demand, Bud Warren of Geared Drives has developed a new spur gear and centrifugal clutch PSRU for Subaru! This double reduction redrive, accomodating reduction ratios up to 3:1, is excee...
  • Geared Drives LS1 FWF for RV-10 at Oshkosh - Duration: 3 minutes, 46 seconds.

    • 9 years ago
    Geared Drives PSRU and Chevy Corvette LS1 firewall forward package for RV-10 running up for the folks at Oshkosh. LS1 makes it powerful and the Geared Drives PSRU makes it smooth and multiplies tor...
  • Geared Drives-starting a Chevrolet Powered Airplane from Sun n Fun - Duration: 63 seconds.

    • 11 years ago
    Demonstration of how easy it is to start a Chevy powered airplane-centrifugal clutch does not engage prop fully until you rev the engine up enough to taxi so no danger of it going anywhere. (Tinted...
  • Geared Drives Chevrolet Powered Airplane! - Duration: 16 seconds.

    • 11 years ago
    Low Fly-by at CXO in Conroe, TX. This is our Wheeler Express, experimental aircraft with 405 HP Chevrolet V8 and Geared Drives PSRU-no belts or chains! Sounds great, huh? More information available...
  • Geared Drives Climb Airplane Climbout From Cruise 6000 FPM - Duration: 17 seconds.

    • 11 years ago
    Can your airplane climb at 6000 FPM? This is a clip of a flight and climb taken Jan 1, 2007, of our Wheeler Express with Bud Warren's Geared Drives PSRU and 405 HP Chevrolet 383 V-8. We carried 3 a...
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