Bud@GearedDrives.com • Bud Warren • (936) 827-5126
10150 Dorbandt, Conroe, TX 77303 • Lone Star Executive Airport KCXO
LS1 Engine Engine Information
LS1 Engine Wiring Schematic
LS1
Engine Wiring Notes
LS1 HP vs Torque
But Isn't
the LS1 Heavier Than
an Airplane Engine?
The
answer is no. GM lists the 5.7L Chevrolet LS1 engine as weighing in at
409 lbs right out of the crate. We remove the steel exhaust
manifolds and other accessories not utilized in aeromotive application
and we end up with an engine weighing 375 lbs. Once we add our
engine mount, ECU and harness, radiators and all accessories, PSRU, oil
and water, we end up with a ready to fly weight of between 488-493 lbs
depending on the application.
We have weighed an Eggenfellner six cylinder turbo right off the
airplane, also ready to fly, at 510 lbs.
Most IO-540's out weight the LS1 FWF package by Geared Drives and don't
offer but a fraction of the torque to the prop. In fact, most
certified manufacturers will not even tell you how much torque is
actually applied at the prop. The Geared Drives LS1 FWF engine
package offers over 580 ft lbs of torque to the prop at take off at 4200
RPM, and at cruise at 3200 RPM only slightly less due to the
nearly flat torque
curve on this engine.
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