210 HP with IO390. Vote
Posted: Tue Feb 22, 2011 6:49 am
Lycoming have listened to us! 30 additional HP for the DA40, with very little extra weight, no complexity and a fully certfied STCed solution. Sounds good? Read on and please contribute.
Lycoming are working on an internal business case for STCing the IO-390 on the DA40.
The investment for the STC is a 6 digit number and understandably they have limited funds in the Echelon program.
Jeff Schans, Lycoming's Echelon Manager, told me he is planning on having us in the 2012 Budget.
In order to get that idea through his corporate approval process, he needs to document our interest.
I will add a FAQ below and will update it so that we all see the progress.
Please take the poll and note you may check multiple answers. You may also alter them as we go.
This thread will be visited by Lycoming and Diamond! Welcome here guys...
Cheers
FAQ
Is the IO390 drop-in compatible?
Maybe, Lycoming are checking that.
What would it bring?
30 HP more. The performance benefits will heavily depend upon the quality of the integration (cowling, cooling drag). I have suggested that Lycoming contact LoPresti on this matter and Jeff said ok.
From calculations expexct 300 to 500 fpm increase in climb rate. Speed increase is definitely single digit but wait and see.
There is also potential for increased MTOW but that is a more complex certification matter.
More fuel burn?
Only if we use the extra power. Otherwise expect equivalent fuel efficiency. Same speed same GPH same range.
What is the weight penalty?
About 8 lbs. See below for 2007 and later planes for which there is potentially a weight and CG benefit.
What is the CG impact?
I have informed of the aft CG issue with the more recent DA40. Will be taken into consideration. If at all possible, proper placement of the engine might let us get rid of the 17 lbs of ballast that are factory built into 2008 and later planes while improving CG of the empty plane. That alone would be a major benefit!
Cost?
Ballpark for the base upgrade is $ 30 to 40 K. No powerflow, no new prop. More detail will follow
Is my existing Powerflow compatible?
Lycoming are in touch with PF to check.
Is my existing prop compatible?
Lycoming are also checking.
Will the IO390 run on MOGAS?
Unlike our IO360, the IO390 is not approved by Lycoming for MOGAS. This is due to the higher compression 8.9)
Please ask more questions and will try to get answers asap
Antoine
Lycoming are working on an internal business case for STCing the IO-390 on the DA40.
The investment for the STC is a 6 digit number and understandably they have limited funds in the Echelon program.
Jeff Schans, Lycoming's Echelon Manager, told me he is planning on having us in the 2012 Budget.
In order to get that idea through his corporate approval process, he needs to document our interest.
I will add a FAQ below and will update it so that we all see the progress.
Please take the poll and note you may check multiple answers. You may also alter them as we go.
This thread will be visited by Lycoming and Diamond! Welcome here guys...
Cheers
FAQ
Is the IO390 drop-in compatible?
Maybe, Lycoming are checking that.
What would it bring?
30 HP more. The performance benefits will heavily depend upon the quality of the integration (cowling, cooling drag). I have suggested that Lycoming contact LoPresti on this matter and Jeff said ok.
From calculations expexct 300 to 500 fpm increase in climb rate. Speed increase is definitely single digit but wait and see.
There is also potential for increased MTOW but that is a more complex certification matter.
More fuel burn?
Only if we use the extra power. Otherwise expect equivalent fuel efficiency. Same speed same GPH same range.
What is the weight penalty?
About 8 lbs. See below for 2007 and later planes for which there is potentially a weight and CG benefit.
What is the CG impact?
I have informed of the aft CG issue with the more recent DA40. Will be taken into consideration. If at all possible, proper placement of the engine might let us get rid of the 17 lbs of ballast that are factory built into 2008 and later planes while improving CG of the empty plane. That alone would be a major benefit!
Cost?
Ballpark for the base upgrade is $ 30 to 40 K. No powerflow, no new prop. More detail will follow
Is my existing Powerflow compatible?
Lycoming are in touch with PF to check.
Is my existing prop compatible?
Lycoming are also checking.
Will the IO390 run on MOGAS?
Unlike our IO360, the IO390 is not approved by Lycoming for MOGAS. This is due to the higher compression 8.9)
Please ask more questions and will try to get answers asap
Antoine