2si 690-70

[MattPearson]

This is just a report on my engine. I am VERY happy with the engine so far. <br>I can cruise in my Super Fly at 75 mph @ 5200 RPM with a 4 gph fuel burn. It is silky smooth and sounds great.<br>Max engine speed is 6500 RPM. I have a 62 inch three blade Warp drive set to 15 degrees.  I have a 2.65 gear box. My prop setting alone is a testament to the incredible torque this engine produces down low and therefore the increased reliability due to lower engine RPM.  We don't need no stinkin four strokes! ;D<br>

 

[ToddP]

Re: 2si 690-70

I flew with a guy in a trike that had the 2si 690-70.  It realy seemed to run well and he was very happy with it.  He did say he needed to change to a 4 bladed prop because the 3 blade w/ the 3 cylinders was causing a resonance.  The prices are much better than rotax.  If I decide I need more power in the future, the 2si will definately be one of my choices.<br>

 

[rfonseca]

Re: 2si 690-70

Do you know the 2si website?<br><br>Ramón

 

[ToddP]

Re: 2si 690-70

The address to 2si international is:<br><br>http://www.2si.com/<br><br>The link to the information on the 690-70 is:<br><br>http://www.2si.com/690l-70_690al-70_spec.htm<br><br>Olenik Aviaton carries this engine.<br><br>The 690-70 w/ Gearbox & electric start is $4194<br><br>Compared to the Rotax 582 w/ Gearbox & electric start @ $6239<br><br>Sounds pretty good.<br>

 

[rfonseca]

Re: 2si 690-70

Tks, Todd.<br><br>They do not mention aircraft nor gyros in the application's section.<br><br>Ramón

 

[ToddP]

Re: 2si 690-70

It is listed under Industrial Engines.<br>