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Old 12-04-2009, 04:11 PM   #136
anders e
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Thanks
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Old 12-04-2009, 04:38 PM   #137
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Keep in mind that if you use the MTW header sold by DA which has a length of 11", you need to prop your engine for 7700-7800rpm to get best performance (Vess 23A for the DLE/DA50). A 14" header at 7200rpm works much better. Will give you a huge boost in torque at lower rpms.

Don't understand why DA orders them too short from MTW. Same story with the MTW RE3 pipes for the DA 85 and 170. Headers are 2" short.
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Old 12-04-2009, 04:49 PM   #138
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Ok.
Where do i get 14'' header?
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Old 12-04-2009, 05:05 PM   #139
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by anders e
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Ok.
Where do i get 14'' header?
See if you can fit it first. The pipe tunnel of the Extra 300 is a bit short, so maybe the one of the Edge too.

You can either silver solder a 2" extension to the 11" header DA is selling and prop your engine for 7400rpm or contact http://www.mtw-silencer.com/ directly for a 25mm header. They are not so keen on selling a header only w/o their RE2 pipe, which btw is an excellent choice as well. A few ounces heavier though but virtually indestructibly.

If you want the best of the best, get a BME 58, Carl Mueller header and ES pipe for 55-60cc engines, and a Vess 23B. Ask Karl Mueller for a 14" header and if he can make it a bit wider so it won't be too deep. http://www.rcaerobats.net/Mueller/Mu...tomHeaders.htm

Mount the ES pipe loosely in the center where it balances with a cable tie and silicon tubing around the tie. Mount the header and pipe and use the clamps. Then run the engine for 10 minutes at 1/4 throttle and don't touch the Teflon coupler afterward or the pipe might come loose.
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Old 12-04-2009, 05:19 PM   #140
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Thank you very much
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Old 12-04-2009, 05:33 PM   #141
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by anders e
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Ok.
Where do i get 14'' header?

I'm swinging a 23-8 Mejzlik with my DA 50 and ES pipe, the recommended header length for that setup with Mej. 22/23-8 is 11-11 1/2".

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Old 12-04-2009, 05:35 PM   #142
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by anders e
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Thank you very much
You're welcome!

The BME 58 has double counterweights and 3 bearings on the crankshaft so it runs much smoother than any of the other 50cc class engines. And it's several ounces lighter than the DA50 and much more powerful.
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Old 12-04-2009, 05:41 PM   #143
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

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I'm swinging a 23-8 Mejzlik with my DA 50 and ES pipe, the recommended header length for that setup with Mej. 22/23-8 is 11-11 1/2".

Lee
This gives you a good indication about header lengths. 11" works well for close to 8000rpm like with a BME 58 and Vess 23A or DA50 and Vess 22A. Nice to pull out of a hover like a foamy does, not so nice for anything else.

See the BME threads for more tests re header lengths. Your best bet is getting a 14" header which can be shortened to your liking.
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Old 12-04-2009, 05:41 PM   #144
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by mstam
You're welcome!

The BME 58 has double counterweights and 3 bearings on the crankshaft so it runs much smoother than any of the other 50cc class engines. And it's several ounces lighter than the DA50 and much more powerful.
Try it against one of the new RCGF "B" line 62cc's. I think you'll find that they run just as smooth!!!

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Old 12-04-2009, 05:54 PM   #145
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

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Try it against one of the new RCGF "B" line 62cc's. I think you'll find that they run just as smooth!!!
Nice engine!

Weight with ignition and muffler
66.3 ounces (1880g)

BME58 with ignition and muffler
50.4 ounces (1411g)

The BME is almost one pound lighter and has double counterweights and 3 bearings so less vibration and more durable. I'm sure it's also more expensive than the RCGF
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Old 12-04-2009, 05:56 PM   #146
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by mstam
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This gives you a good indication about header lengths. 11" works well for close to 8000rpm like with a BME 58 and Vess 23A or DA50 and Vess 22A. Nice to pull out of a hover like a foamy does, not so nice for anything else.

See the BME threads for more tests re header lengths. Your best bet is getting a 14" header which can be shortened to your liking.

Thanks for the advice, I'm just stating what the guy that makes the pipes told me, plus I've flown this setup and it's been great for me with both the RE2 and ES pipe. I've been running stock headers on the DA 100 with RE2's as well, very good results and good transition. I'm using 14" headers with RE3's on the 170, and do plan on doing some testing with the length on the 50/RE2 setup but just haven't got to it yet. I'm getting btween 7-7100 with the DA 50/RE2/Mejzlik 23-8 and 6800 with the 100, I'm very happy with the overall results.


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Old 12-04-2009, 05:59 PM   #147
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by mxcop
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Thanks for the advice, I'm just stating what the guy that makes the pipes told me, plus I've flown this setup and it's been great for me with both the RE2 and ES pipe. I've been running stock headers on the DA 100 with RE2's as well, very good results and good transition. I'm using 14" headers with RE3's on the 170, and do plan on doing some testing with the length on the 50/RE2 setup but just haven't got to it yet. I'm getting btween 7-7100 with the DA 50/RE2/Mejzlik 23-8 and 6800 with the 100, I'm very happy with the overall results.


Lee
I also started with a Vess 23B at 7200rpm and 11" RE2 header. I soldered a 2" extension to the header and the result is simply a stronger engine at lower rpms which is actually what we want.

For our applications header length isn't that critical as long it isn't too short A longer header usually means less top power and more torque (up to a certain degree).
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Old 12-04-2009, 06:10 PM   #148
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

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I also started with a Vess 23B at 7200rpm and 11" RE2 header. I soldered a 2" extension to the header and the result is simply a stronger engine at lower rpms which is actually what we want.

For our applications header length isn't that critical as long it isn't too short A longer header usually means less top power and more torque (up to a certain degree).
I haven't tried a Vess prop yet but can tell you that my buddy had the 23B, we had the same setup and our planes seemed to run totally different, he's now down to a 22a and his performance is around the same as mine. Props alone can make a big difference in performance and tuning.

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Old 12-04-2009, 06:15 PM   #149
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

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I haven't tried a Vess prop yet but can tell you that my buddy had the 23B, we had the same setup and our planes seemed to run totally different, he's now down to a 22a and his performance is around the same as mine. Props alone can make a big difference in performance and tuning.

Lee
I used the 22A for break-in and it was hitting 7900rpm on a DL50, 11" MTW header and RE2 pipe. Bit too much to my liking. I'm now at 7200rpm, 13" header, Vess 23B.

For the DA/DL(e) 50/55 a Vess 22B works very well on a regular muffler. I also tried some Mejzlik props but like the throttle response of the Vess better.
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Old 12-04-2009, 06:22 PM   #150
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Default Re: EXTREME FLIGHT 50CC EDGE 540T AND CAP!!!!

Quote: Originally Posted by cjcyclesrc
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Lee,

Come on!! What are you waiting on?

I haven't been able to break the Extra either. Mine gets stress tested every flight. I'm thinking it's got 500-600 flights on it. I'm trying out some ES pipes also. It looks like a very good way to go. The pipe, header, coupler, and clamps only weigh 10oz.
Is that for your Brillelli?
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