Help! The difference between a DA85 and a DA100L.

[Snoopy1]

If someone ones both or did can you give the advantage of one against the other have a DA85 and would like to a little more power in the plane. Will the DA100L do the trick or is not worth the effort or the money.

 

[Jetpainter]

The 100L is a pound heavier, but might make a little more power, maybe. But the 100L is certainly smoother running.

I doubt you would see much, if any, power increase considering your adding a pound. I've flown a 107" Pilot Extra 330SC with a DA85 and an RE3 tuned pipe and it had plenty of power.

 

[Luchnia]

I have a DA 100 (not L) and it has good power and smooth as silk. I flew it on a 105" Extra 260, but I like rocket ship power so I put a DA 120 on it and now it is a rocket, but not nearly as smooth as the DA 100. The DA 100 I have is a sweet running engine although quite a bit on the heavy side.I just changed it out about two weeks ago.

It is a pound heavier than the DA 120. Great for IMAC flying and general 3d, just not ballistic on a 35%er. I remember one guy had a DA 85 on a smaller plane than mine and it was decent but I don't think you could really compare the power to the 100. It has a lot to do with the plane and style of flying.

 

[Snoopy1]

Thanks for the information. Looks like from what you have described is that DA100L is not the way to go not enough difference to make the change. So if I go for a DA120 that should be a big improvement, and not much heavier only 5oz. One question which engine the DA85 and the DA120 of the two engines which one shakes harder, is a 120 a smoother running engine.

 

[HRRC Flyer]

Hey @Snoopy1,

Don't overlook the 3W110. My flying Buddy put a 3W110CS in his 35% Carden Extra when his DA-100 ate a C-Clips on one of the connecting rods. Even with the 3W running rich due to being new, the power increase over the old DA made the Extra a completely different plane.

 

[Jetpainter]

Thanks for the information. Looks like from what you have described is that DA100L is not the way to go not enough difference to make the change. So if I go for a DA120 that should be a big improvement, and not much heavier only 5oz. One question which engine the DA85 and the DA120 of the two engines which one shakes harder, is a 120 a smoother running engine.

In my experience the 120 is definitely smoother and has awesome power.

 

[Snoopy1]

Hey @Snoopy1,

Don't overlook the 3W110. My flying Buddy put a 3W110CS in his 35% Carden Extra when his DA-100 ate a C-Clips on one of the connecting rods. Even with the 3W running rich due to being new, the power increase over the old DA made the Extra a completely different plane.

Yes I would love to buy a 3W110cs that would be awesome to own one but the price is a little much. But yes it would be nice to have one.
One thing the @stangflyer would be proud of me if i had two red heads.

 

[Snoopy1]

From all the info above it looks like the choice is pretty straight forward buy a 120 and mussel it in to the cowl and hope it does not tear the front off. Priced the motor at the LHS it was $1525. Have save for a while to get it or pick it up at JoeNall next year, this flying season is almost over. Thanks for the help and info.

 

[49dimes]

Saw this rendering......125cc.......Old School Piston port induction (no reeds)...... Compact heads/angled plugs to fit smaller cowls......Fairly light weight ...... Slightly more powerful than a speeding mini bike......Says it will 3D a 35 center but better suited to scale .....Dirt cheap price ......Will make you wish you had held on to the lighter more powerful DA85 .....

It is a "pretty" though!
And everything flies so much better when it's pretty .

 

[Luchnia]

Saw this rendering......125cc.......Old School Piston port induction (no reeds)...... Compact heads/angled plugs to fit smaller cowls......Fairly light weight ...... Slightly more powerful than a speeding mini bike......Says it will 3D a 35 center but better suited to scale .....Dirt cheap price ......Will make you wish you had held on to the lighter more powerful DA85 .....

It is a "pretty" though!
And everything flies so much better when it's pretty .
View attachment 99241 View attachment 99242

Interesting bling bling there.