DA 170cc V/S 3W 200cc

[crhammond]

That Hempel Yak has me salivating also. But I would need a bigger trailer (and probably and bigger garage and a divorce) to get one LOL.

[smokin]

cc for cc the 3W's will make more power. many guys have complained about the constant need for "tweeking" the 3W's but i have several of them and really haven't had to do a thing other than switch to the aluminum reed block.

i replaced a nice DA 100 on my 2.6 comp yak with a 3W 106toc and it is a HUGE power difference. i have replaced my da 150's with the 3W 157 and there is a BIG difference there as well. i now have a 3W170cs with the 3W cans and i am installing it in my 42% dalton mel extra 300. this should absolutely be a rocket. aircraft international's service is atleast as good as DA's in my opinion. granted, gerhard always sounds a bit cranky but hey, he's german and just sounds that way. he is really quite nice and VERY knowledgable.. they are fast as well.

anyway, the 3W's would get my vote for sure... but like a few have said, the 170 is all you want for the 40-44 lb bird. the 210 is just added weight and not necessary!

good luck and happy flying!

matt

[Stu_D]

	Quote: Originally Posted by hady
	what would prefer having on your baby a DA or a 3W and if you had the choice between DA170cc and a 3W 200cc what would be your choice ??

I think its more a choice of engine size rather than brand . Both the 170's are
going to be pretty close in power but I would consider the fact that the 3W
has been out in the market so it would count for something .

As for 170 Vs 210 , I prefer which ever fits the plane the best . There seems to
be about 1 Kg between the two sizes so if the plane NEEDS the power and can
handle the weight the go for the 210 .

If your plane needs to be as light as possible but still with good power then you cant go
wrong with the 170 .

Stu

[JCS]

	Quote: Originally Posted by Stu_D
	Both the 170's are going to be pretty close in power but I would consider the fact that the 3W has been out in the market so it would count for something .

Hi

I have used an "early-production" DA-170 all season long with MTW RE-3 pipes. The engine run flawlessly from the beginning. It's just like with the DA-150: Take it out of the box, fit it in your plane and fly it. So, the argument that the 3W 170 has been out for a longer time should not make a big difference. Besides I think the DA is considerably lighter than the 3W.

Jean-Claude

[Mithrandir]

there seems to be a breaking in difference... with all my DA's... (I have had two 150's andone 100)... it seemed like after flight number 4, the motor was broke in and the needles could be welded in place....
I am up to 14 flights on a WWW170 I bought used (with maybe 15 flights)... and it is still growing in power and the needles need a little leaning. Sick power on my SX!
Lets see though if I can go 400 flights without a mishap!!!???

[Vic3D]

	Quote: Originally Posted by Mithrandir
	I am up to 14 flights on a WWW170 I bought used (with maybe 15 flights)... and it is still growing in power and the needles need a little leaning. Sick power on my SX! Lets see though if I can go 400 flights without a mishap!!!???

That motor is still not broken in lol. Wait until the 20th gallon or so and you will see the power.

[Vic3D]

	Quote: Originally Posted by smokin
	aircraft international's service is atleast as good as DA's in my opinion. granted, gerhard always sounds a bit cranky but hey, he's german and just sounds that way. he is really quite nice and VERY knowledgable.. they are fast as well.

Hit the nail on the head. I have called Gerhard on Monday and had my engine on wednesday ready to install.

I've also had 3 3W engines, and had no need to send in for service. I won't even knock on wood this time.

[flyinryon]

I have had 3W157,DA150,and now the DA 170 they all are great motors loved my 3w but didn't care for the service when i called for a few ? i had would still have that motor today if i would have gotten a straight answer on the phone just got rubbed the wrong way but as for 3w motors they are great.

[hady]

i have my DA 170 on a TT yak 54 40% , till now i did 6 flight with it and it is still growing in power i know that it need at least 3 galon to start having its full potential but now i can hover easily with spare power to climb away from the hovering . i am sure after few flight it will give me much more power . i am happy with it.
PS my plane is designed for a 200cc engine. so DA 170 is = to 200 cc in performance

[aerowiz]

200 performance,,,,go buy a 31x12 3 blade mejzlick and tell us all how it goes.