Nobody flies more 3D in my 130 member club than me. Mine's got plenty of power with stock exhaust for anything I do. It rockets through long verticals. My main purpose is not to prove you wrong, just to tell people that the stock exhaust is a very good option. Your previous post about the lame duck statement is not what I'm experiencing. Not everybody wants to deal with the tuned pipe cons that I listed above.

I tend to agree here as well. Power options, like on cars have their pros as well as cons. If I have more than enough power to practice and successfully perform maneuvers that is as far as I go. Sure we could always want for more, but there is a fine line to power output and what fits on a particular airframe.

Saving weight adds horsepower - hands down. I have a 97 inch older H9 Sukhoi that the previous owner got down to 21 lbs with the DA85 stock exh it has more power than I think you would ever need. Putting greeves or something on it is only gonna weigh it down and for a marginal power increase its really not worth it. I realize its an H9 but even if an increase of 30% on tourque was gained, I would then have airframe concerns. If it is a lame duck I think I am confident in asking you to look at weight or airframe issues. Maybe I am wrong but thats where I would start.

I guess its all about matching airframe, engine, and incidentals that get you where you need to be with a weight vs strength balance.

One thing is for sure: There are restrictive exhausts that will turn an engine into a lame duck. The stock DL/DLE is not one of them from my experience. Mine run awesome on them. I have heard happy people putting this engine in up to 19 pound birds. I wouldn't want that weight but this engine really screams with the stock exhaust on my 17#, 10 oz plane.

Except for the added price and the need of programming a throttle curve, there are no real cons using a tuned pipe. The extra weight over a Pitts style muffler is minimal. The stock exhaust is IMO good, a tuned pipe simply adds 30% more torque and 10% more top power. Compared to a Mojo I used to fly w/ a YS63, the Extra w/ tuned pipe still flies like a lame duck, with the standard exhaust like a snail

It's all a matter of personal taste. I'll never own a 3D gasser w/ standard exhaust, tuned pipes only. The EF Edge 540T w/ pipe tunnel is being shipped from China in less than 2 weeks [8D]

I have to disagree on this one. I just weighed my DL stock muffler at 3.4 ounces. What's your header and pipe weigh? A pound at least? There's a big weight difference here.

Maybe you are refering to a Slimline wrap around which weighs about 11 ounces?

A DL stock muffler is not a pitts muffler or even a muffler at all. It's just an exhaust diverter that helps loose airfields in congested areas.

Uh oh.. someone is sensitive about their field!!!! I have to disagree, with the power output I find myself flying at under 1/2 throttle hence less sound.

I know they are louder but thats one of the main reasons I fly gas! If you try to muffle my Mustang GT I would be pissed as well. ( or any hot rod for that matter)

Time to look for a new field Krazee.

yogoblue,

I fly at the best field in Connecticut and I'm not about to loose it due to noise I would make. Land is expensive here, I don't have a spare $10,000,000.00, yes that's right ten milion dollars to buy a comparable field.

i do agree that some folks ,do try to sqeeze every last gram of thrust ,,now not all of us are into 3/d ,,,i am but even considering 3/d where i live ,,we suffer from altitude density , high elevation ,so i can ,kinda see searching for more power,,my cure was to get a larger simmilarly made engine and put my dl ,on a lighter plane ,then some of us are perpetual tinkerers,,and this may lead to some benifits down the line,as we know theres some that buy the engine and never mount it in a plane ,but they will run it and tinker,but apparently you live in low altitude to get such great thrust levels,but yes every field has the guys that set their needles once and go fly then there are those that seem to constantly buying something to get more power and just geek of the motor all day. i guess a little geekery is ok.

Yes, most people use a wraparound muffler and the pipe combo is only a few ounces heavier.
8.9 oz for the RE2 pipe, don't know the weight of the header. The Extra 300 weighs in at exactly 18lbs and 1oz. Most people's Extra weigh in between 17.5 and 18.5lbs.

And to answer your previous question, yes I'm gonna get the Edge w/ a DLE55, MTW header and pipe. Will put it together in Spain probably. Moving there end of November and EF is much later than expected with the release of this bird.

Surprised to see they have 5 fields in the Valencia area

http://www.clubalarc.com/
http://www.clubxaloc.com/
http://www.clubrcvalencia.es/Inicio.htm
http://www.aeromodelismoalzira.com/cms/
http://www.aeroclubalgemesi.org/

Why are you moving to Spain? Sounds kind of exciting.

I just sold my PAU Edge after 3 years of flying it. I'm looking at the EF CAP for a change.

Yes that Cap is also on my wish list. Relocating to Spain isn't cheap though.
I'm from the Netherlands, living in the US for 5 years now, and it was always my dream to live in Spain after I lived in Barcelona for a year 12 years ago. I love the climate, the culture and the laid-back people, and I'll be living closer to my family.

I spent 2 weeks in Spain touring from Madrid down to Cadiz...and back. It was very cool. I really like Spain. Nobody goes to bed earlier than midnight during the work week...eating supper at 10 PM. Crazy time schedule for me.

My DL-50 is in for warranty repair. It started to run lean. Not sure what happened. We'll see. All I know is that my EF Yak is grounded. [:@]
The DLE-55 in my EF Extra is going strong.

I'm in the process of swapping my Brillelli 60 for a new DL-55 from TBM in my EF Yak. With the Brillelli, ES Composites pipe, alluminum header and two 2600Mah Li-Ions, AUW is 18lbs 8oz. The DL is 7oz lighter than the Brillelli and I am changing the fuel tank from a 20 to a 16oz for a total weight reduction of about 11oz. While I agree with Joe that the DL muffler is the lightest option at 3.4oz, my pipe/header combo weighs 10.4oz. I just love the growl and the extra power of the tuned pipe vs the pop-pop-pop sound of a muffler!

Nothing sounds worse to me than a flying chainsaw. A properly designed muffler will not loose rpm over the stock muffler but will make the engine sound smooth, deep and fairly quiet. The best cannister is the JMB, they are extremely quiet, but have a very deep tone. I'm working on a large volume, incowl, baffled muffler. It will not necessarly increase performance but should work in planes not set up for tuned pipes and weigh only 2oz more than a standard pitts muffler. For a tail heavy plane flying at a noise sensitive field it will be perfect.

[/quote]

I'm in the process of swapping my Brillelli 60 for a new DL-55 from TBM in my EF Yak. With the Brillelli, ES Composites pipe, alluminum header and two 2600Mah Li-Ions, AUW is 18lbs 8oz. The DL is 7oz lighter than the Brillelli and I am changing the fuel tank from a 20 to a 16oz for a total weight reduction of about 11oz. While I agree with Joe that the DL muffler is the lightest option at 3.4oz, my pipe/header combo weighs 10.4oz. I just love the growl and the extra power of the tuned pipe vs the pop-pop-pop sound of a muffler!
[/quote]

I'm in the process of swapping my Brillelli 60 for a new DL-55 from TBM in my EF Yak. With the Brillelli, ES Composites pipe, alluminum header and two 2600Mah Li-Ions, AUW is 18lbs 8oz. The DL is 7oz lighter than the Brillelli and I am changing the fuel tank from a 20 to a 16oz for a total weight reduction of about 11oz. While I agree with Joe that the DL muffler is the lightest option at 3.4oz, my pipe/header combo weighs 10.4oz. I just love the growl and the extra power of the tuned pipe vs the pop-pop-pop sound of a muffler!
[/quote]

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I have to agree, but I like the sound of a flying lawn mower myself.

[/quote]

I have to agree, but I like the sound of a flying lawn mower myself.
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Me too!

You will be welcome to Spain ....

Manuel

What is the factory settings for the high and low speed needle valves on the DL50? I know it has been posted several times, but I couldn't find it. The kids readjusted them for me and I want to start over from factory settings.

Greg

It shows 1 1/2 Low and 1 3/4 High on ValleyviewRC.com DL-50 manual.
http://www.valleyviewrc.com/DL-50cc%...e%20Manual.pdf

That's a very good starting point but will be fat (that's the purpose though, start fat and tune). Both of mine ended up at 1 1/4 Low 1 5/8 High after tuning/tweaking.

Thanks Joe

Greg

Do you Think the DLE 55 has more power than a DA 50

Well, If the numbers have anything to do with it, I'd say it has about 5 more power...Sorry for the crack but it's too windy to fly today and I'm bored!

We ahve had reports from DA-50 drivers that it does have more power.
George jenkins National Advertising Director, Troy built Models.
www.troybuiltmodels.com

i personally dont know if thres more power but for 300 bucks less,,,,,,,and they arent siezing up or failing,and there are several sources for parts and repair,,and for the most part im assuming we arent competing just flying for fun,so for me this line of engines is a winner all around.then theres this great forum to help with every aspect from mufflers to tuning and repair....