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Old 10-05-2005, 02:38 PM
  #151  
rmh
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Default RE: New ZDZ-80

Trick question--
Static thrust - the 26x10 will beat it. (6900/6400)
In flight - the ZM is terrific - noise is down-and except for initial recovery from hover -it is better
All in all a terrific "marriage" of prop n engine.
This is on my EDGE 22.25 lbs -but on the ol 26 lb 35% Extra we did not fly the 26x12
.
Old 10-06-2005, 07:02 AM
  #152  
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Default RE: New ZDZ-80

If the ZM prop is handled fine on the engine at 6400 RPM, then I would put something bigger than a Mejzlik 26x10 to fly. Maybe a 27x10.

Why is the current 80RV still in production? I don't see a big benefit from having the current 80RV instead of the new 80. Only thing I see is that maybe some C-ARF 2.3 will still use the older 80 as it is a bit lighter, cheaper and already way too powerfull for the application...
Old 10-06-2005, 07:41 AM
  #153  
Ben Diss
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Default RE: New ZDZ-80

Careful with the Mej 27x10. It's a fat prop with the blade cord at the root bigger than the Mej 28x10. It'll put a huge load on the motor. As how I know? Anyone want to buy a Mej 27x10?

-Ben
Old 10-06-2005, 08:58 AM
  #154  
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Default RE: New ZDZ-80

I will swap-if yours is in excellent shape -I have extra 26 x10 Mejzlicks drilled - not drilled . choose one or the other . unused
picture available -send private message please.
Old 10-06-2005, 06:19 PM
  #155  
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Default RE: New ZDZ-80

I am not sure I would be comfortable letting an engine this size spin 7300 on the ground. For sure even more than 7300 in the air [sm=spinnyeyes.gif]. The Mejzlik 26x10 is better suited to the 80RV than the new 80 IMO.
Old 10-06-2005, 06:46 PM
  #156  
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Default RE: New ZDZ-80

the higher revs are not for everyone -and do require good props well balanced
My 26x12 ZM turns over 7300 in the air in level flight and seems just fine -it is a very stiff solid prop design.
The currrent ZDZ80's turn up over 8000 with no apparant ill effects and my 50 ZDZNG is propped sometimes at 7700 on the ground and runs up in the 8000 range ,again with no problems (22x8 Mejzlic)
All in all -the best power to noise rpms seem to be mid 6000-low 7000 in the air. It is a compromise for sure .
The in cowl muffler engines turn nowhere near these numbers and so the rpm thing is really associated with piped engines or the racing , open stack setups.
My little gassers , ROTO and EVO 26 sizes run happy as a clam at close to 10,000 all the time. they are on pipes .
Old 10-06-2005, 06:51 PM
  #157  
Forgues Research
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Default RE: New ZDZ-80


ORIGINAL: dick Hanson

the higher revs are not for everyone -and do require good props well balanced
My 26x12 ZM turns over 7300 in the air in level flight and seems just fine -it is a very stiff solid prop design.
The currrent ZDZ80's turn up over 8000 with no apparant ill effects and my 50 ZDZNG is propped sometimes at 7700 on the ground and runs up in the 8000 range ,again with no problems (22x8 Mejzlic)
All in all -the best power to noise rpms seem to be mid 6000-low 7000 in the air. It is a compromise for sure .
The in cowl muffler engines turn nowhere near these numbers and so the rpm thing is really associated with piped engines or the racing , open stack setups.
My little gassers , ROTO and EVO 26 sizes run happy as a clam at close to 10,000 all the time. they are on pipes .

Hi Dick, when you mention the EVO 26 are you refering to the Evolution since the actual EVO line of engines is a different engine all together. Have a look at my web site. These are engines I'm importing from Spain. Just trying to avoid any confusion.

Roger
Old 10-06-2005, 07:33 PM
  #158  
bpryor
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Default RE: New ZDZ-80


ORIGINAL: aerografixs

Hi Dick, when you mention the EVO 26 are you refering to the Evolution since the actual EVO line of engines is a different engine all together. Have a look at my web site. These are engines I'm importing from Spain. Just trying to avoid any confusion.

Roger
Hi Roger, how's it going? Those are some interesting looking motors. Do you have an specs on them. You can PM me with the info so as not to ruffle any feathers in this thread....or post here at your own risk. ....or, if there aren't any threads going on them, I'd be glad to start one so you could post the info on them there.
Old 10-06-2005, 09:35 PM
  #159  
rmh
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Default RE: New ZDZ-80

Better get ready for a lot of confusion.
The Evolution engines from Horizon are coded EVOExxxx -so the abbreviation was mine and will likely be commonly used by others..
I had never heard of EVO engines - -it is a surprise to me .
All of my comments have been about the EVOLUTION 26 and I will spell it out from now on.
Old 10-06-2005, 09:54 PM
  #160  
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Default RE: New ZDZ-80


ORIGINAL: dick Hanson

Better get ready for a lot of confusion.
The Evolution engines from Horizon are coded EVOExxxx -so the abbreviation was mine and will likely be commonly used by others..
I had never heard of EVO engines - -it is a surprise to me .
All of my comments have been about the EVOLUTION 26 and I will spell it out from now on.
Thanks Dick,

Roger
Old 10-06-2005, 09:55 PM
  #161  
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Default RE: New ZDZ-80


ORIGINAL: bpryor


ORIGINAL: aerografixs

Hi Dick, when you mention the EVO 26 are you refering to the Evolution since the actual EVO line of engines is a different engine all together. Have a look at my web site. These are engines I'm importing from Spain. Just trying to avoid any confusion.

Roger
Hi Roger, how's it going? Those are some interesting looking motors. Do you have an specs on them. You can PM me with the info so as not to ruffle any feathers in this thread....or post here at your own risk. ....or, if there aren't any threads going on them, I'd be glad to start one so you could post the info on them there.
Hi Bill,
I doing just fine, I'll send you a PM for more information.
Roger
Old 10-13-2005, 01:49 PM
  #162  
Mrt1750
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Default RE: New ZDZ-80

Dick
Do you have an update on the new ZDZ-80 RVJ
Thanks
Old 10-23-2005, 10:12 AM
  #163  
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Default RE: New ZDZ-80

Has anyone received and run one of these new engines besides DH? whats the verdict and what exhaust are you running?
Old 10-23-2005, 03:00 PM
  #164  
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Default RE: New ZDZ-80

Flyinrazback,
I got your pm but decided to answer here:

I have not ran mine yet and i do not plan to test it before next spring. Winter is already knocking to the door in Quebec.

I am going to use the KS-95 with 11 inches header. I went to machine shop last week the get tig welded the flex header . ZDZ Amelug sell a complet set for the ZDZ-80 RVJ header.
http://www.zdz-motor.de/index.html?lmd=38608.742014

With the header, you can use what want as can or pipe. I would wait a few weeks before getting the can. I have read somewhere that Dick Hanson is testing new cans that suppose to boost RPM near the tune pipes set up.
I am sure Dick will post his results as soon as possible.

Daniel
Old 10-23-2005, 03:40 PM
  #165  
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Default RE: New ZDZ-80

Dick, any insight on the can? I was planning on the KS 95. Scoub, what made you decide on the 11" header?
Old 10-23-2005, 04:08 PM
  #166  
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Default RE: New ZDZ-80

I am going to put it into the 33% WH Extra 260 and 10''-12'' header is perfect for that plane. I'll post some pics next week. i use 1/2'' stand off. Futhermore i asked the question to KS:
Hello
I am installing the KS-95VS-4 in a 33% Extra 260 for IMAC competition. I am going to use the new ZDZ-80 RVJ that can turn Mejzlick 26x10 at 7000RPM. I would like to turn the Mejzlick 28x10 at 6400RPM.
http://www.zdz-motor.de/index.html?lmd=38608.742014
Questions:
1) Could you recommand me the right manifold lenght please? I am using 28mm header.
2) Is there a power reduction with the outlet canister toward the engine instead of straight outlet?
Daniel Dion from Canada
Dear Sirs,
we recommend a manifold-lenght from 240 mm up to 300 mm for the new engine ZDZ-80. We have the same results with the muffler 90-4, 95-4 or 95V-4.

Best regards

Klaus Krumscheid
Old 10-23-2005, 05:08 PM
  #167  
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Default RE: New ZDZ-80

Scoub, thanks, thats the setup I planned on using in a WH 260 myself. Which header did you get? Did KS prefer the front exit or rear exit for the can, or did they say? 1/2" is the size needed for standoffs?
Old 10-23-2005, 05:35 PM
  #168  
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Default RE: New ZDZ-80

1) 1/2'' is the engine stand off for the new ZDZ-80 and you're gonna need 3/4'' if you go with the older ZDZ-80 RV on the WH Extra 260.

2) Look my previous post on the KS header, i gave you the ZDZ Amelung link but i am sure RC Showcase have something to propose in USA.

3) Same power if you go with front or rear exit.
Old 10-24-2005, 06:15 AM
  #169  
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Default RE: New ZDZ-80

The Epower switch instruction sheet shows that we can connect the new ZDZ switch between: battery and ignition or battery and receiver.

Anyone has an idea how it works if we connect the switch to the rx? Is it to test something?

Old 10-24-2005, 06:42 AM
  #170  
rmh
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Default RE: New ZDZ-80


The switch is a good switch -can be used for a JR RX and batt. (ignition not involved)
Old 10-24-2005, 06:51 AM
  #171  
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Default RE: New ZDZ-80

Hello Dick!
Did you install that switch into the fuse or outside it? I am still afraid to loose the red pin[]
Old 10-24-2005, 09:05 AM
  #172  
rmh
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Default RE: New ZDZ-80

Outside - I have it on two planes -the pin stays put.
This type switch is popular for some electronic setups as it is positive and "failsafe" ( nothing is truly failsafe but this is as good as it gets)
Old 10-30-2005, 01:57 PM
  #173  
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Default RE: New ZDZ-80

If I were to go with a Super 80 what would be the best header an full pipe combo? Do these engines need to be tunes like a ducted fan engine, ie cutting the header and what not? This will be for a CHP 300S for IMAC.
Old 10-30-2005, 02:17 PM
  #174  
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Default RE: New ZDZ-80

No totally different deal it is simply a rather non critical setup just bolt together .
Old 10-30-2005, 04:43 PM
  #175  
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Default RE: New ZDZ-80

OK sweet, Can you use smoke on pipes and cans? I just want a solid pipe or can combo for a 23-25 pound airplane that can hook up smoke once in a while for fun. Are the cans that RCS sells any good?


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