dingo power
 

Hi guys,

I wanted to know what kind of props, fuel and rpm you are getting with your dingos? Also, how many gallons did it take to reach "full" power?

I am running Coolpower 30 with a hatori header and 698 pipe. This combo turns at about 8.2k which does not seem any different to what I was getting with my L.

Any comments suggestions and specs would be interesting.

thanks,

James

RE: dingo power
 

My dingo is fed with coolpower 30%, the same Header and Pipe as yours, turnning APC 15.5X12w at 8.6K. This combo has been tried on my Limited, only 7.6K colud be reached.
2 gallons fuel was consumed to reach this performance from break-in.
Hope this may be helpful.

RE: dingo power
 

140DZ: Coolpower 30% heli, APC 16.5x12w, with carb intake restrictor and an air filter on top -- 8400 rpm. My experience is that the engine reached full power on the very first flight, and it has not changed up or down from there.

David

RE: dingo power
 

gents,

your figures tie up with what I would expect to see - on a 16x12 standard apc prop, no restrictor, I would expect around 8.6-8.7k.

The engine has had a couple of gallons through it now so from what you are saying it should be producing pretty much its peak power.

Next question, anyone have any ideas as to why I am 4-500rpm down? I am using it at only about 400ft asl so it's not like altitude is going to knock a few hundred rpm off. I appreciate that without having the setup in front of you it is hard to diagnose any problems, but I am using what is essentially a standard model/engine set-up (it is fitted in my ZN Alliance). It does not appear to be overheating - indeed, ground running it with the cowling off does not make any difference. I have the CFE filter on but it is quite a coarse mesh so shouldn't have too much if any affect on the intake airflow.

Any suggestions as to the kind of thing I should consider would be useful.

thanks,

James

RE: dingo power
 

My dingo is on Magnum Dz blend fuel with a 16.5*12 prop and a es carbon pipe.

RE: dingo power
 

A little off topic here, but has anyone used the Power Master DZ Blend? Any comments?

RE: dingo power
 

I experienced a loss of about 300 RPM when using an intake filter on both the DZ and L. I would suggest you try it without. It does change the mixture and will require resetting the needle.

Marty
NSRCA 2551
D-4

RE: dingo power
 

James,

I am using your setup exactly in my Alliance including the 16X12 APC

My engine has only just returned from a holiday in Japan where they fixed it under warranty after the second cam failure. This setup produced 8700 -8800 rpm with restrictor in place.

The model is certainly very lively with this power plant. The DZ engine is not a high revving engine. What I am trying to say is smaller props wont necessary yield higher RPM. There is a point were RPM remain the same. I found the 16 x 12 to be a good setup. The 16.5 x 12 W works very well in calm conditions on a model which weighs under 4.6-7 Kg.

If your getting only 8.1K on this prop you do have a problem. If it has done a bit of work try replacing the ring.

My setup is

1 3/4 turn on the high
Approx 1 turn in from flush on pump
16 X 12 APC
restrictor
Coolpower 30% LV
OSF
Hatori header with 698 pipe

peter

RE: dingo power
 

Another thing on DZ's they like the rockers fairly tight..IF they are loose will really drop rpms..Found this out the hard way..Also what was stated before in a setup list, make sure your pump is close to flush as well. Charlie

RE: dingo power
 

Hi James,

my Dingo with PowerMaster %20 nitro (low visco oil of course;) ) & 16.5 X 12 W apc prop & hatori header + 698 pipe+ without restrictor !!! ; turns between 8.45k - 8.55k at 3000 ft. from sea level... For break-in 1 - 1.5 galoons of fuel is O.K. If you'll try to fly soo rich ; you will have dead stick landings like me[sm=punching.gif]...This engine did not like to run soo rich , be carefull [sm=thumbup.gif]

Happy Landings
Oscar

RE: dingo power
 

guys,

thanks very much for the help and advice. First I tightened up the valve clearances - this increased my 8.2k to 8.4k. Then I took off the CFE filter and this pushed it up to 8.6k.

That extra 400 rpm makes a huge difference! Plane flies better now than ever. Many thanks.

James