zdz40FAI
04-18-2007, 02:41 AM
#101
RE: zdz40FAI
Hi Super D
My opinion about choice of glow engines.
2 strokes : OS 140 RX, powerfull engine, very simple to set up; economic fuel with 15 % nitro only
just to change bearing because origin bearings are weak.
4 strokes : YS 160 DZ very powerfull engine the best Yamada in my opinion. But it' necessary tu use 25 % nitro.
Also to change regularly diaphram of regulator and check valve.
My 160 DZ have 180 flights (10 or 12 mn by flight; I just change diaphram of régulator twice and diaphram of check valve once)
Claude
My opinion about choice of glow engines.
2 strokes : OS 140 RX, powerfull engine, very simple to set up; economic fuel with 15 % nitro only
just to change bearing because origin bearings are weak.
4 strokes : YS 160 DZ very powerfull engine the best Yamada in my opinion. But it' necessary tu use 25 % nitro.
Also to change regularly diaphram of regulator and check valve.
My 160 DZ have 180 flights (10 or 12 mn by flight; I just change diaphram of régulator twice and diaphram of check valve once)
Claude
04-28-2007, 03:17 PM
#102
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RE: zdz40FAI
I had a chance to compare some Popular engines lately. All had stock/pits exhaust.
DA 50 Blubbery midrange with quite a bit of vibration at idle, Still Brand new though. Starts were difficult at first until I got the needles set.( they came from DA w/ needles all the way in, bottomed out)
Revolution R50. Great 1st flip starter, from the factory, smooth all the way through the power band from idle to WOT. Unfortionatly I did not keep this engine.
Fuji 64 w magnito ignition. Very east starter, usually 2nd flip starter, smooth throughout the powerband, but significant vibration at WOT, but not at idle like the DA. DA seems to be running ruff at idle right now.
DA 100cc. Awsome starter, 1st flip. ALmost no vibration at all, from Idle to WOT! Twins are very nice form what I have seen so far. Why cant the Nitro twin come down in price so we can all fly with twins!
ZDZ 40fIA Starts same as DA50. (it has been a while since I started this one, because I have not had a chance to build the bird it is going into). THis was very smooth transition w/o out any burble at the midrange. Wonderfull low idle that is plennty respnsive with no noticable vibration at any RPM. (of corse some vibration becase it is a engine, but you get what I mean)
I think that the new ZDZ 40 engine is a great so far. If you want a engine that is sooper light, powerfull, smoth, (will no vibrate the delicate airframes apart) this is the ticket.
DA 50 Blubbery midrange with quite a bit of vibration at idle, Still Brand new though. Starts were difficult at first until I got the needles set.( they came from DA w/ needles all the way in, bottomed out)
Revolution R50. Great 1st flip starter, from the factory, smooth all the way through the power band from idle to WOT. Unfortionatly I did not keep this engine.
Fuji 64 w magnito ignition. Very east starter, usually 2nd flip starter, smooth throughout the powerband, but significant vibration at WOT, but not at idle like the DA. DA seems to be running ruff at idle right now.
DA 100cc. Awsome starter, 1st flip. ALmost no vibration at all, from Idle to WOT! Twins are very nice form what I have seen so far. Why cant the Nitro twin come down in price so we can all fly with twins!
ZDZ 40fIA Starts same as DA50. (it has been a while since I started this one, because I have not had a chance to build the bird it is going into). THis was very smooth transition w/o out any burble at the midrange. Wonderfull low idle that is plennty respnsive with no noticable vibration at any RPM. (of corse some vibration becase it is a engine, but you get what I mean)
I think that the new ZDZ 40 engine is a great so far. If you want a engine that is sooper light, powerfull, smoth, (will no vibrate the delicate airframes apart) this is the ticket.
04-28-2007, 04:02 PM
#103
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RE: zdz40FAI
ORIGINAL: kochj
I had a chance to compare some Popular engines lately. All had stock/pits exhaust.
DA 50 Blubbery midrange with quite a bit of vibration at idle, Still Brand new though. Starts were difficult at first until I got the needles set.( they came from DA w/ needles all the way in, bottomed out)
Revolution R50. Great 1st flip starter, from the factory, smooth all the way through the power band from idle to WOT. Unfortionatly I did not keep this engine.
Fuji 64 w magnito ignition. Very east starter, usually 2nd flip starter, smooth throughout the powerband, but significant vibration at WOT, but not at idle like the DA. DA seems to be running ruff at idle right now.
DA 100cc. Awsome starter, 1st flip. ALmost no vibration at all, from Idle to WOT! Twins are very nice form what I have seen so far. Why cant the Nitro twin come down in price so we can all fly with twins!
ZDZ 40fIA Starts same as DA50. (it has been a while since I started this one, because I have not had a chance to build the bird it is going into). THis was very smooth transition w/o out any burble at the midrange. Wonderfull low idle that is plennty respnsive with no noticable vibration at any RPM. (of corse some vibration becase it is a engine, but you get what I mean)
I think that the new ZDZ 40 engine is a great so far. If you want a engine that is sooper light, powerfull, smoth, (will no vibrate the delicate airframes apart) this is the ticket.
I had a chance to compare some Popular engines lately. All had stock/pits exhaust.
DA 50 Blubbery midrange with quite a bit of vibration at idle, Still Brand new though. Starts were difficult at first until I got the needles set.( they came from DA w/ needles all the way in, bottomed out)
Revolution R50. Great 1st flip starter, from the factory, smooth all the way through the power band from idle to WOT. Unfortionatly I did not keep this engine.
Fuji 64 w magnito ignition. Very east starter, usually 2nd flip starter, smooth throughout the powerband, but significant vibration at WOT, but not at idle like the DA. DA seems to be running ruff at idle right now.
DA 100cc. Awsome starter, 1st flip. ALmost no vibration at all, from Idle to WOT! Twins are very nice form what I have seen so far. Why cant the Nitro twin come down in price so we can all fly with twins!
ZDZ 40fIA Starts same as DA50. (it has been a while since I started this one, because I have not had a chance to build the bird it is going into). THis was very smooth transition w/o out any burble at the midrange. Wonderfull low idle that is plennty respnsive with no noticable vibration at any RPM. (of corse some vibration becase it is a engine, but you get what I mean)
I think that the new ZDZ 40 engine is a great so far. If you want a engine that is sooper light, powerfull, smoth, (will no vibrate the delicate airframes apart) this is the ticket.
04-28-2007, 09:29 PM
#105
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RE: zdz40FAI
What would you guys ( those that actually have one of these ) think of using this engine in a plane ( not a pattern type ) along with one of the headers available from RCS and a cannister exhaust. I need a 40 size gasser for a Midwest Super Stinker and this one looks good because it's light and seems to work very well from the few reports I've read. I want to use the cannister exhaust mostly to quiet it down and IF it provides me with more power that's fine also.
In other words would it be a good engine for this kind of application or am I wasting it's obvious intended purpose on a "sport" type plane. I know there are cheaper alternatives but "cheap" is not the main objective.
In other words would it be a good engine for this kind of application or am I wasting it's obvious intended purpose on a "sport" type plane. I know there are cheaper alternatives but "cheap" is not the main objective.
04-28-2007, 11:02 PM
#106
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RE: zdz40FAI
yes -here is an installation I did with the nonF3a -a short homemade header and a small JMB can - quiet and good power I was using a 21x8 mejzlic -running 7000+
04-29-2007, 04:14 AM
#107
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RE: zdz40FAI
Dick , never having run an exhaust such as this I have what maybe is a silly question. How hot does that can get ? Do I need an open tunnel in order to cool it. Your install in the picture looks enclosed and very snug to the wood.
04-29-2007, 08:43 AM
#108
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RE: zdz40FAI
actually it is open on both sides and simply has a liteply/balsa cover on top.
there is no need to build a tight encloser - as there is no oil spewing from it - th heat that goes into th fuselage means nothing - -but IF you have qualms aout the heat - a window or vent in aft fuselage will keep air moving thru the model . even a vent such as an open servo hole under stabilizer.
there is no need to build a tight encloser - as there is no oil spewing from it - th heat that goes into th fuselage means nothing - -but IF you have qualms aout the heat - a window or vent in aft fuselage will keep air moving thru the model . even a vent such as an open servo hole under stabilizer.
05-02-2007, 11:35 AM
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RE: zdz40FAI
I will most likely place it in my first intended choice, a GP Hawk Bi-plane w/pitts exhaust! I like it for the light weight and I will be able to lug the engine down with a 3-blade prop and still be able to do nice large round loops when I don't want to fly scale . The guys that had the 26 cc gassers in the hawk didn't quite have enough oommph to do that with a 3-blade. They ended up taking off there 300$ scale looking Solo 3-bladepitch adjustable props and placing back on a standard 2-blade in order to get the power out of it...
In the future I may place the engine in a pattern plane, but for now I will take advantage of the smooth power, lightweight, low goop advantage that it has over any comparable size engine out there on the market right now. (IMHO)
Good luck I am happy that I made they buy.
Heck RCS even drew up a mounting template when I asked about it so I can now just place it on the cross and drill the holes, just like on all my other engines!
Nice guy's over there! IMHO.
Justin[8D]
p.s> i MUST BE ON THE GREAT PLANES AND DA paylist as well. I GAVE THEM A Good review too!!
In the future I may place the engine in a pattern plane, but for now I will take advantage of the smooth power, lightweight, low goop advantage that it has over any comparable size engine out there on the market right now. (IMHO)
Good luck I am happy that I made they buy.
Heck RCS even drew up a mounting template when I asked about it so I can now just place it on the cross and drill the holes, just like on all my other engines!
Nice guy's over there! IMHO.
Justin[8D]
p.s> i MUST BE ON THE GREAT PLANES AND DA paylist as well. I GAVE THEM A Good review too!!
06-19-2007, 12:51 PM
#114
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RE: zdz40FAI
OK own up.
Is this (F3A?) a genuine ZDZ engine. Sure it's based on a genuine engine but the mods aren't factury right?
There isn't any mention of this on the manufactureres web site. No F3A engine, no mention to it.
The messages from the European Distributors is that they won't be stocking it... I'll keep the reason private for a while.
Whats the story.
Is this (F3A?) a genuine ZDZ engine. Sure it's based on a genuine engine but the mods aren't factury right?
There isn't any mention of this on the manufactureres web site. No F3A engine, no mention to it.
The messages from the European Distributors is that they won't be stocking it... I'll keep the reason private for a while.
Whats the story.
06-19-2007, 02:20 PM
#115
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Thread Starter
RE: zdz40FAI
- I got it from the US Distributor RCShowcase .
Of course it's a genuine ZDZ.
It is exactly as it comes from the mfg.
It is intended to setup n run with a long tuned pipe and that is how we use it .
The sound check did make FAI requirements once the rattles in the plane were stopped -used a 20x12 ZDZprop
If you have some deep dark secret - why not share it .
Or is mis information ,power ?
Of course it's a genuine ZDZ.
It is exactly as it comes from the mfg.
It is intended to setup n run with a long tuned pipe and that is how we use it .
The sound check did make FAI requirements once the rattles in the plane were stopped -used a 20x12 ZDZprop
If you have some deep dark secret - why not share it .
Or is mis information ,power ?
06-19-2007, 02:51 PM
#116
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RE: zdz40FAI
Dick,
Where is the pipe floor in the Abbra? It doesn't seem to have one from your pictures. Is this right? Wouldn´t heat (and oil?) damage the radio electronics?
Where is the pipe floor in the Abbra? It doesn't seem to have one from your pictures. Is this right? Wouldn´t heat (and oil?) damage the radio electronics?
06-19-2007, 04:43 PM
#117
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RE: zdz40FAI
- -Pipe floors are a bit mis understood - -The problem being , if you really enclose the pipe - heat becomes a problem however , if you leave the entire thing open --then have a good extraction point Low pressure ) aft in the fuselage - there is a LOT of air movement .
I went theu a number of trial n worry setups till I finally found that just like a cowl, the air moves based on extraction --not on inlet etc..
In my EDGE No floor -no problem.
The CF pipe has extremely low radiation of heat - the aluminum pipe in th e Edge has a lot of radiation -being aluminum but still all ist goot !
I went theu a number of trial n worry setups till I finally found that just like a cowl, the air moves based on extraction --not on inlet etc..
In my EDGE No floor -no problem.
The CF pipe has extremely low radiation of heat - the aluminum pipe in th e Edge has a lot of radiation -being aluminum but still all ist goot !
06-20-2007, 11:09 AM
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RE: zdz40FAI
ORIGINAL: Aresti-RCU
Where is the pipe floor in the Abbra?
Where is the pipe floor in the Abbra?
It looks more like the Cayene.
This is the manufacturer
http://www.jm-composite.com
07-03-2007, 08:18 PM
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RE: zdz40FAI
Hi guys,
Anybody have any thoughts on putting one of these engine ES pipe combos in a H9 27% 260 or a GP 25% yak?
Also has anybody tried a 21x8 prop on this motor yet?
I,m thinking about going with one of these setups but would prefer some real world info before investing $700 - $850 in the engine/pipe combo.
thx Dave
Anybody have any thoughts on putting one of these engine ES pipe combos in a H9 27% 260 or a GP 25% yak?
Also has anybody tried a 21x8 prop on this motor yet?
I,m thinking about going with one of these setups but would prefer some real world info before investing $700 - $850 in the engine/pipe combo.
thx Dave
07-03-2007, 10:08 PM
#123
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RE: zdz40FAI
strange - we were running that exact setup on bench today -7500+
The engine is great - I am doing my own design with this engine and Ed;s pipe - I did the 27% Extra and a 40RVon JMB can - terrific s-easy to do not as much power as pipe but plenty of stuf for the plane at 13.25 lbs.
The engine is great - I am doing my own design with this engine and Ed;s pipe - I did the 27% Extra and a 40RVon JMB can - terrific s-easy to do not as much power as pipe but plenty of stuf for the plane at 13.25 lbs.
07-03-2007, 10:58 PM
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RE: zdz40FAI
Thanks Dick,
Which header are you running with the JMB can? The stock one available from RCShowcase? Also which can did you have, I see on the RCS site that a JMB 40/70/270 [40cc] or the JMB 60/60/270 [40-50CC] is available I would like to get the same setup as you have as the projected weight of the plane is 13.5lbs.
Also what prop was that?
Your assistance with regards to setting up and running these ZDZ motors is exemplary.
thx Dave
Which header are you running with the JMB can? The stock one available from RCShowcase? Also which can did you have, I see on the RCS site that a JMB 40/70/270 [40cc] or the JMB 60/60/270 [40-50CC] is available I would like to get the same setup as you have as the projected weight of the plane is 13.5lbs.
Also what prop was that?
Your assistance with regards to setting up and running these ZDZ motors is exemplary.
thx Dave
07-04-2007, 08:59 AM
#125
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RE: zdz40FAI
the 60/60 setup -I made my own short header you can do it using KS flange and a piece of tube.
no curve -the large tubing has only a slight angle needed to line up - I brazed it together .
I liked the 21x8 Mejzlic - allows easy over 7000rpm - no tuning issues smooth easy throttle response.
no curve -the large tubing has only a slight angle needed to line up - I brazed it together .
I liked the 21x8 Mejzlic - allows easy over 7000rpm - no tuning issues smooth easy throttle response.