Thanks guys! helpful as always!

I gotta say it again...what a great engine! Next project for my second DL is an EF extra...should be here soon! cant wait.....

Hi Drewbags, that maybe why mine is Thirsty, its only had about 1 gallon so far, your getting way better than me...

To be honest I think I was getting about 14-15mins straight out of the box. Have you leaned out the top end for max rpm and smoothed out the low end?

Funny you should mention that wavy777 because that's exactly what I paid for a liter of Belray H1R on Saturday. I knew your petrol was a lot higher but always figured your oil would be too! Guess it's been a while since i bought any there.

Well, I ordered a new cowl from TBM 60 bucks. Not bad. Then I called Tom at valley view RC, he's sending me a JXF 22x8, drilled how I want, shipped for 27 dollars. What a guy. You guys want a good company to deal with give Tom a call.

looking forward to seeing more post on this motor as it looks as though not enough people have alot of time on it.can anyone tell me what the carb number is assuming it is a walbro carb.i my self fly da50 and da100.althought they are pricey they perform great.would like to pick up a dl50 to put in a winter plane im building now.can anyone here that is using a throttle curve tell me how well the transition of the motor is around hover point.just to let the previous poster know.the first time you put gas thru a new motor (carb) its diaphram is dry.making its pump function less.once you get the diaphram wet with gas it will pump just fine.a easy way to prime the carb is ,ignition off,place finger over carb opening or full choke.rock the prop back and forth past the compression stoke.(ignition off) this will draw fuel in instead of flip the prop continously.

I run negative expo on my throttle and the transition is as close to flawless as you can get. IMHO You can take a look at it for yourself in the tuning video I posted. The engine behaves just the same in the air. BTW the reason I used the expo is to get the throttle response correct for the position of the stick. Oh, one other thing, the DL seems to perform much better then the DA from what my hardcore DA friends tell me. They're dumping their DAs in favor of the DL.

I like my 3 DL's better than my DA for sure. I use 30% expo on throttle. Transition is great and there is a noticable difference in engine performance between the two. (to me) Allthough my DA must be one with probs. (leans out inverted) as other all say thiers run great.

The friends I have that are dumping theirs have the same problem and have since the day they bought the engine.

Yep I sold my DA50 in favour of the DL50 my DL out performes MY DA in every aspect run the DL for a little while and you will putting it in your #1 plane.

thanks for the replies.will be getting a dl50.also if you are looking to get rid of your da50 let me know

Long gone

Hi guys!

i just finished building my SD model extra 30%, and i was wondering what spinner adaptor do you use?
i've got the 4" aluminum spinner and it comes with a M5X40 hex screw, but it is too short..
where can i get a longer hex screw or an adaptor?

thanks
liron

Lou, I think the source of UK and USA oil is the same, somewhere near Baghdad! So the price should be the same... Would be good to see some of our US friends Hucking over here....i think an EF yak would be considered 'hand luggage' wouldnt it?

Drewbags, i have only richened the bottom end about 1/16th of a turn and not touched the top end...yet..i'm gonna wait and see how it go's before i have another 'play' with the needles, its got so much power I can't believe it!! What an engine...starting to turn heads where i fly, i think some people thought it was a DA85

CHeers

W

PS: I totally agree with you guys, the DL is a no-brainer decision over a DA. I have an unused DA that will not see any fuel...but it will see Ebay!! guess where the cash is going?...... DLUSA

Wavy

My only thought is not to run it too rich for too long, it will carbon up in no time. As long as you have the right oil content and good cooling it will do it no harm. My advice would be to get the needles set close to optimum earlier rather than later. I agree about this being an excellent engine, guys who have seen mine are eager to get their hands on one!

I agree with Wavy DON'T RUN YOUR ENGINE TOO RICH if you want to, use more oil running to rich just carbons up the ring most people are breaking in there engines like they would a glow engine, this is not a glow engine run 32:1 for break in and then go to 50:1 or what ever you wish. Just my .02

Hey Drew, Tell 'em the mother-in-laws coming over for Christmas in a few weeks!!! She could probably get one back through customs! LOL[8D][8D][8D][8D] She lives in Mildenhall!! Not too far!!!! At today's rate that would be 187 pounds sterling.[&:][&:][&:][&:]

Let's not exagerate - I don't see where this DA bashing is helpful - we all know it's more expensive, but that is where the difference ends.

I have both engines and they run about the same. Given the same plane, gas and prop, you would get the same results for a well tuned DL or DA - tried that several times and have not been able to extract more performance from one or the other. They are perfectly interchangeable and it's very convinient to swap them when needed.

There is really very little difference between the two as one is a clone of the other and they have the same Walbro 201 carb.

Adjusting the DL seems to be a little easier - I will give you that.

A well broken-in and tuned DA on pipe will provide nearly 7.4K rpm on a 23x8 - I have yet to see a DL do that. I would actually be hesitant to try this on A DL being that it is cast, rather than machined. Might not be able to take the high temp that well...

Walbro 201b

Putting them side by side on the table, the JXF looks like the same exact shape as the Xoar and the NX but made of softer wood.

The ring digs in quite deep into the hub when you tighten the prop bolts. Scared me enough that I stopped using it and went back to NX...

I have a DL still going through break-in that's turning a Vess 23A at 7400 and I've yet to see a DA do that. I also have yet to see a DA that will fly inverted without carb problems. BTW The DL is rated at a higher hp.

No one put a spinner on this engine yet?[&:][&:][&:]

so much anger here.yes i do have a da 50 that runs inverted perfectly.as well upright.im sorry you have problems with yours.was it new or used when purchased.there may be the problem.thanks for the carb number (yarom) as i have seen many china engines at the field with cheaper walbo carbs not working correctly.putting this carb on has solved there problems.would be great if these forums were left to helping and advising instead of bashing.

Yep, I run a 3.5" spinner on my Extra 330L.

Yarom

I agree we should not bash the DA, it is by all accounts a great engine and I don't think you can fault their after sales service, which at the price of the engine should be expected and I would encourage all of us to be circumspect when comparing the 2, we don't want another thread locked!!

However, I have been shot down on several UK boards by die-hard DA supporters when I have mentioned how well my DL runs, I didn't mean to put down the DA but that is how it is interpreted! The bottom line is that the DL is a great engine at a great price and you can't fault people for being over enthusiastic about it.

By the way I get 7300rpm on a 3W 23x8 on a KS cannister, not a pipe, which is pretty good in my book.