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Search: Posts Made By: pauldo
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Forum: Gas Engines
05-16-2012, 09:47 PM
Replies: 13
Views: 1,685
Posted By pauldo

RE: GAS EQUIVALENTS TO GLOW ENGINES?

The correct Prop for a Super Tigre 2500 is an 18 x 6. The ST 3000's would turn a 18 x 8, and 18 x 10. Running a 20 x 6 prop would certainly be way beyond what a 2500 could pull efficiently, and...
Forum: Gas Engines
05-06-2012, 01:36 PM
Replies: 17
Views: 2,405
Posted By pauldo

RE: Hanger 9 Piper Pawnee 40 Recommend Reliable Gas CC Engine Size for this Airplane

I have a Saito 125 in mine. I had to modify the engine mount to get the engine as close to the firewall as possible, to keep the back face of the spinner as close to cowl as possibe.
The reason I...
Forum: Gas Engines
07-03-2011, 09:44 AM
Replies: 25
Views: 3,077
Posted By pauldo

RE: Zenoah GT-80 Twin prop choice for a warbird

Yep. I think the orriginal post has been answered. 24 x 10 seems to be the consensus. Oh, and if you are looking to make your War Bird go as fast as possible, then the racing prop option has been...
Forum: Gas Engines
04-27-2011, 10:13 AM
Replies: 35
Views: 10,478
Posted By pauldo

RE: DLE 55 vs OS GT55

Funny, I hang on to the engines I am having trouble with, as I cannot bring myself to pass on my problems to another fellow modeler. I only sell motors that I know are running well, and can sell with...
Forum: Gas Engines
04-17-2011, 11:48 AM
Replies: 6
Views: 1,024
Posted By pauldo

RE: 3W 75i Question

The Zenoah 80 twin is not the ideal motor for this plane. It is very heavy, and down on power when compared to the 80cc singles. (It does make a great scale aircraft power plant, but not ideal for...
Forum: Gas Engines
03-17-2011, 09:39 PM
Replies: 13
Views: 1,415
Posted By pauldo

RE: 40-70CC high rpm

If you are lookig to get the engine to turn high RPM's, then you may need to look at piston port or rotary valve induction motors. Reed valve induction are not great over 8000 rpm. Modified reeds may...
Forum: Glow Engines
03-07-2011, 12:07 AM
Replies: 27
Views: 2,099
Posted By pauldo

RE: ST2300

You may be correct. As Super Tigre is now owned by Hobbico (I think) The changes may have gone further than the Carb. As the USA market uses a lot more nitro in their fuel than in the rest of the...
Forum: Glow Engines
03-05-2011, 11:57 PM
Replies: 27
Views: 2,099
Posted By pauldo

RE: ST2300

Super Tigres do not like 10% Nitro. Their compression ratio is too high. Without an option of lower nitor content fuel, you may be able to try a cooler plug, or if possible another head ship. Even if...
Forum: Gas Engines
02-07-2011, 11:32 AM
Replies: 10
Views: 986
Posted By pauldo

RE: how does an engine act when ign. batt dies

If the ignition battery dies, so will the motor. However, if the voltage is low, but enough to keep the engine running, the engine will run very rough. You will initially think that it is running...
Forum: Glow Engines
01-20-2011, 11:13 AM
Replies: 8
Views: 910
Posted By pauldo

RE: super tigre g90 quitting

I think you are running too much Nitro, and are getting pre ignition. Super Tigre typically prefer less Nitro than other brands of motor. I have found ST 60's that will just not run on 10% nitro. Try...
Forum: Glow Engines
01-20-2011, 11:06 AM
Replies: 144
Views: 21,936
Posted By pauldo

RE: OS 55AX problems

You guys in the States are accustomed to using high nitro contents, and I think this could be your problem with the 55AX.
If I am correct, it sounds like, when your engines are cutting out, it is...
Forum: Gas Engines
12-22-2010, 12:40 PM
Replies: 49
Views: 4,381
Posted By pauldo

RE: TOC 53 have been Upgraded - TMM53N Bench Testing Run , Lighter & More power out

I have two of the previous 3MM 53's. They run very smooth, but have a couple of problems.
1) They have a rich mid range which I battle to tune out
2) They are a little down on power when compared...
Forum: Gas Engines
10-31-2010, 04:55 AM
Replies: 8
Views: 1,137
Posted By pauldo

RE: 33% airframe , what engine

I like the ZDZ 80 and MVVS 80. These are probably the smoothest running singles in this range. (You still can't beat a twin) The DA 85 is powerful, but shakes a lot, and you would need to ...
Forum: Gas Engines
10-01-2010, 01:25 PM
Replies: 19
Views: 2,684
Posted By pauldo

RE: 50cc -Whose is the smoothest?

The 3mm TOC 53 is one of the smoothest singles I have run. It also has a side induction carb which suites some applications. It has a 3 bearing crank. I understand that they have released a new...
Forum: Gas Engines
08-19-2010, 08:23 AM
Replies: 40
Views: 3,363
Posted By pauldo

RE: Engine Sagging

Vanguard, I would look at your cooling. I had the same problem, on a Yak, and solved it with baffling. Pe is correct. On a hot day, you have less air, and therefore need to lean your mixture, if...
Forum: Gas Engines
07-27-2010, 03:36 PM
Replies: 1,389
Views: 131,412
Posted By pauldo

RE: MT70CC TWIN

I have a Moki 180 that I purchased almost new. It does not run (I know why it was sold). I have not been able to get this resolved anywhere, through any agent. I resorted to buying another Moki, and...
Forum: Gas Engines
07-12-2010, 05:17 AM
Replies: 11
Views: 2,040
Posted By pauldo

RE: Crankshaft bearings spinning in crankcase.

I have seen this problem a number of times with the CRRC 45. It seems that the crank shafts have not been assembled correctly, and the front and rear sections of the crank, that run through the...
Forum: Gas Engines
05-15-2010, 10:22 AM
Replies: 27
Views: 4,332
Posted By pauldo

RE: DL-50, XYZ-50HP VS. DA, ZDZ AND 3-W ENGINES

We all agree that some of the Chinese motors are now worth a look. As far as Zenoah's go, their pricing is not bad, but they are heavy, and the 62 is just not an option for a 30% airobatic aircraft,...
Forum: Gas Engines
04-05-2010, 01:53 AM
Replies: 28
Views: 8,942
Posted By pauldo

RE: DA85 vs 3W85xi vs MVVS 80 IRS

I have done similar research, and although the DA 85 seems to have a lot of power, all have indicated that it shakes planes to pieces, and a lot of airframe reenforcement is needed. From what I have...
Forum: Gas Engines
04-05-2010, 01:38 AM
Replies: 1,389
Views: 131,412
Posted By pauldo

RE: MT70CC TWIN

Plane Crazy,

Is 7075 more brittle than 6061, as I know a couple of guys who have had mounting lugs snap, on the DA 50, through viabration. (Does the DA 50 also use 7075?)
Forum: Gas Engines
03-10-2010, 03:49 PM
Replies: 8
Views: 932
Posted By pauldo

RE: How do you know which?

The JC (RC Aero) will not swing a 19 x 8 at 8000 RPM, nor will it swing an 18 x 8 at that. It is, however, a very nice motor, and has good power for its size. (Possibly one of the better 26 to 30 cc...
Forum: Gas Engines
03-10-2010, 12:57 AM
Replies: 21
Views: 10,108
Posted By pauldo

RE: DL50 VS Zenoah G62

If the decision is just between the DL 50 and G62, there is no contest. It will have to be the DL 50. I have flown a Pitts with a heavy engine, and it was not nice. In fact I sold it. After flying...
Forum: Gas Engines
03-09-2010, 04:08 PM
Replies: 21
Views: 10,108
Posted By pauldo

RE: DL50 VS Zenoah G62

I have had 2 Great Planes Pitts. The first one had a Super Tigre 4500 in it. This weighs about 2.5 Kg's with the engine mount, and will just manage a 20x8 prop. The plane was heavy and not pleasant...
Forum: Gas Engines
01-07-2010, 02:47 AM
Replies: 462
Views: 42,981
Posted By pauldo

RE: How are all you MT57 users making out?

OK Unit 53, I think we all understand your centiments right now, and we are sorry that you have had problems, but lets get on with the positive, and focus on some known fixes.

I really believe...
Forum: Gas Engines
01-05-2010, 02:44 AM
Replies: 462
Views: 42,981
Posted By pauldo

RE: How are all you MT57 users making out?

You guys in the States have become accustomed to great service, and warranty support. We are grateful for any help. I live in South Africa, once a thriving economy, and great place to live. It is now...
Showing results 1 to 25 of 50
 


 
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