Continuing my dive down the rabbit hole on engine options for an experimental Super Cub, thank you all for the Yamaha comments
While talking to Shane at Mad Custom Cubs about the Yamahas he had some great insight but the real gem of that conversation was his praise of the Verner Scarlett 9S... I thought I'd ask you guys about it. Torque keeps getting brought up and while I love to defend the little Yamaha I do agree with everyone the importance of torque. Shane made a interesting point that the Verner produces a lot of torque at a much lower RPM than the equivalent Lycoming. Does the Verner have a place on the Super Cub? Is it just a novelty? Does anyone have one flying? The 1000TBO sucks but word is it's a cheap rebuild?
Specs off the website for reference
www.vernermotor.com/
[TABLE="width: 538"]
[TR]
[TD]Displacement[/TD]
[TD]6094 cc / 372 cubic inch[/TD]
[/TR]
[TR]
[TD]Pistons[/TD]
[TD]9[/TD]
[/TR]
[TR]
[TD]Cooled by[/TD]
[TD]Air[/TD]
[/TR]
[TR]
[TD]Bore[/TD]
[TD]92 mm[/TD]
[/TR]
[TR]
[TD]Stroke[/TD]
[TD]102 mm[/TD]
[/TR]
[TR]
[TD]Compression ratio[/TD]
[TD]1:7,8[/TD]
[/TR]
[TR]
[TD]Maximum power[/TD]
[TD]158 BHP (116 KW) @ 2400 RPM[/TD]
[/TR]
[TR]
[TD]Max. continuous power[/TD]
[TD]136 BMP (100 kW) @ 2300 RPM[/TD]
[/TR]
[TR]
[TD]Torque[/TD]
[TD]485 Nm @ 2000 RPM[/TD]
[/TR]
[TR]
[TD]Propeller rotation[/TD]
[TD]CCW, viewed from the front (tractor propeller)[/TD]
[/TR]
[TR]
[TD]Complete dry weight[/TD]
[TD]114kg[/TD]
[/TR]
[TR]
[TD]Spark plugs[/TD]
[TD]Champion RN12YC, Denso Q20PR-U[/TD]
[/TR]
[/TABLE]
[TABLE="width: 538"]
[TR]
[TD]Electric starter[/TD]
[TD]12V / 1000W[/TD]
[/TR]
[TR]
[TD]Generator (Alternator)[/TD]
[TD]12V / 336W[/TD]
[/TR]
[TR]
[TD]Lubrication[/TD]
[TD]Philips X/C Aviation SAE 25W60; Total 20W60[/TD]
[/TR]
[TR]
[TD]Fuel[/TD]
[TD]Motor petrol, octane number 95[/TD]
[/TR]
[TR]
[TD]Carburetor[/TD]
[TD]Marvel; S&S[/TD]
[/TR]
[TR]
[TD]Reduction drive[/TD]
[TD]None[/TD]
[/TR]
[TR]
[TD]Propeller hub[/TD]
[TD]∅111,12 x 6 x 16 holes - M8 (3/8 24 UNF) SAE 1[/TD]
[/TR]
[TR]
[TD]Max propeller[/TD]
[TD]220[/TD]
[/TR]
[TR]
[TD]Installation[/TD]
[TD]Back[/TD]
[/TR]
[TR]
[TD]Recommended TBO[/TD]
[TD]1000 hours[/TD]
[/TR]
[TR]
[TD]Batteries[/TD]
[TD]12V 24Ah
[/TD]
[/TR]
[/TABLE]

Specs off the website for reference
www.vernermotor.com/
[TABLE="width: 538"]
[TR]
[TD]Displacement[/TD]
[TD]6094 cc / 372 cubic inch[/TD]
[/TR]
[TR]
[TD]Pistons[/TD]
[TD]9[/TD]
[/TR]
[TR]
[TD]Cooled by[/TD]
[TD]Air[/TD]
[/TR]
[TR]
[TD]Bore[/TD]
[TD]92 mm[/TD]
[/TR]
[TR]
[TD]Stroke[/TD]
[TD]102 mm[/TD]
[/TR]
[TR]
[TD]Compression ratio[/TD]
[TD]1:7,8[/TD]
[/TR]
[TR]
[TD]Maximum power[/TD]
[TD]158 BHP (116 KW) @ 2400 RPM[/TD]
[/TR]
[TR]
[TD]Max. continuous power[/TD]
[TD]136 BMP (100 kW) @ 2300 RPM[/TD]
[/TR]
[TR]
[TD]Torque[/TD]
[TD]485 Nm @ 2000 RPM[/TD]
[/TR]
[TR]
[TD]Propeller rotation[/TD]
[TD]CCW, viewed from the front (tractor propeller)[/TD]
[/TR]
[TR]
[TD]Complete dry weight[/TD]
[TD]114kg[/TD]
[/TR]
[TR]
[TD]Spark plugs[/TD]
[TD]Champion RN12YC, Denso Q20PR-U[/TD]
[/TR]
[/TABLE]
[TABLE="width: 538"]
[TR]
[TD]Electric starter[/TD]
[TD]12V / 1000W[/TD]
[/TR]
[TR]
[TD]Generator (Alternator)[/TD]
[TD]12V / 336W[/TD]
[/TR]
[TR]
[TD]Lubrication[/TD]
[TD]Philips X/C Aviation SAE 25W60; Total 20W60[/TD]
[/TR]
[TR]
[TD]Fuel[/TD]
[TD]Motor petrol, octane number 95[/TD]
[/TR]
[TR]
[TD]Carburetor[/TD]
[TD]Marvel; S&S[/TD]
[/TR]
[TR]
[TD]Reduction drive[/TD]
[TD]None[/TD]
[/TR]
[TR]
[TD]Propeller hub[/TD]
[TD]∅111,12 x 6 x 16 holes - M8 (3/8 24 UNF) SAE 1[/TD]
[/TR]
[TR]
[TD]Max propeller[/TD]
[TD]220[/TD]
[/TR]
[TR]
[TD]Installation[/TD]
[TD]Back[/TD]
[/TR]
[TR]
[TD]Recommended TBO[/TD]
[TD]1000 hours[/TD]
[/TR]
[TR]
[TD]Batteries[/TD]
[TD]12V 24Ah
[/TD]
[/TR]
[/TABLE]