RE: My 2300 only likes one prop

RE: My 2300 only likes one prop
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RE: My 2300 only likes one prop - 3/25/2006 6:38:08 AM

Lomcevak-RCU

Posts: 28
Joined: 12/20/2001
From: spokane, WA, USA
Status: offline

YA and how am I turning a 22x8 @ 9800 on my 2300.......hmmm must be my (home Brewed Fuel)

....... it's called 100% Nitro, and an engine life of about 30 seconds. LOL

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I like flying low enough to have an excuse for buying another plane. : )

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Post #: 326

RE: My 2300 only likes one prop - 3/25/2006 1:44:53 PM

Not24

Posts: 999
Joined: 12/7/2002
From: Gloucester, VA, USA
Status: offline

Okay, let me ask another question here. Does anyone run their 2300 on a prop larger than the 18-6? I originally broke mine in on the 18-8 and kinda liked the low rpm and high torque. The 18-10 is the largest recommended prop, but it will only see about 7300 on that prop. The engine is much happier when it is free to turn up over 9000, which I can get with the 18-6. Just curious.

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Fly it till you break it!

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Post #: 327

RE: My 2300 only likes one prop - 3/25/2006 2:05:52 PM

Cyclic Hardover

Posts: 7252
Joined: 5/7/2002
From: New Mexico, USA
Status: offline

Why would they want too? Running an 18/6 on a 2300 here at 5000ft is like running an 18/6 on a .25 fx.

PS, NOT24, THANKS FOR THE PM, WISH I COULD POST IT HERE!

< Message edited by Cyclic Hardover -- 3/25/2006 6:02:21 PM >

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Post #: 328

RE: My 2300 only likes one prop - 3/25/2006 6:01:03 PM

Lomcevak-RCU

Posts: 28
Joined: 12/20/2001
From: spokane, WA, USA
Status: offline

Hey Not 24, there's a guy on here that is using the Bolly 19x6 prop and is saying he gets 9200 on 5%. I bought the prop on his word and should have it in the mail in a month. People say it has even less load than a Mejzlik 18x6! We'll see.
-

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I like flying low enough to have an excuse for buying another plane. : )

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Post #: 329

RE: My 2300 only likes one prop - 3/25/2006 6:37:07 PM

jeffk464

Posts: 1244
Joined: 10/31/2004
From: cerritos, CA, USA
Status: offline

Ok, you guys have me really confused on what I should do. I have a cmp clone p-40 and was planning on putting a st 2300 on it and after reading this thread I'm not sure anymore. I dont like to go crazy on r.c. spending so I was thinking I could get some real power for this plane for not much money. I was planning on running this engine in the stock inverted position on this plane with the stock muffler and fuel tank correctly positioned for the carb. Should I get good reliable power with this setup. The plane is suppose to have a 140 4stroke so I figure I will be spending most of my run time at half throttle or less.

Are most of the problems you guys are having associated with the old italian carb or the new Chinese carb?

Would I be better off running a gms 1.20 instead? I really dont like the giant muffler the gms comes with.

(in reply to Lomcevak-RCU)

Post #: 330

RE: My 2300 only likes one prop - 3/25/2006 7:02:44 PM

Cyclic Hardover

Posts: 7252
Joined: 5/7/2002
From: New Mexico, USA
Status: offline

I can fully understand how you would be turned off by this thread. Since the P-40 is obviously a warbird and hanging from the prop is out of the question, Go for it. But keep in mind, I assume the engine will be inverted, if so, consider the height of your fuel tank. I run a 2300 in a 60 size Voodoo/P51 and its a mover.

< Message edited by Cyclic Hardover -- 3/25/2006 7:18:48 PM >

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Post #: 331

RE: My 2300 only likes one prop - 3/25/2006 8:07:15 PM

Not24

Posts: 999
Joined: 12/7/2002
From: Gloucester, VA, USA
Status: offline

quote:

ORIGINAL: jeffk464

Ok, you guys have me really confused on what I should do. I have a cmp clone p-40 and was planning on putting a st 2300 on it and after reading this thread I'm not sure anymore. I dont like to go crazy on r.c. spending so I was thinking I could get some real power for this plane for not much money. I was planning on running this engine in the stock inverted position on this plane with the stock muffler and fuel tank correctly positioned for the carb. Should I get good reliable power with this setup. The plane is suppose to have a 140 4stroke so I figure I will be spending most of my run time at half throttle or less.

Are most of the problems you guys are having associated with the old italian carb or the new Chinese carb?

Would I be better off running a gms 1.20 instead? I really dont like the giant muffler the gms comes with.

Have you bought an engine yet? If not, I still wouldn't hesitate to get the 2300. Some are good right out of the box, although you need to be patient with them during break in. You never get something for nothing, so as long as you know you may need to replace the carb to get it running well enough for you, there's no issue. Right now Tower has $20 off, so that money could be put towards a better carb. I would recommend the OS 7d, or the Magnum 1.08. The GMS 120 seems to have an even worse reputation that the st2300, so I would definitely stay away from it.

The only difference in the two carbs is the metering slot in the rotor barrel. The Chinese ones are straight, which is supposed to fix the rich midrange. Apparently, there are still some quality control issues at ST, and some carbs are good, while others are not so good. I must say that mine was "good enough", but I wanted it to be perfect, that's why I upgraded.

I don't know what the expected weight of the P-40 is, but this engine pulls my 11 lb Sukhoi very well on a 16-8.

The only issue I had with the stock muffler is that the o-ring came out. It may be that it just wasn't put together tight enough.

Running the engine inverted is not an issue, but the tank MUST be low enough so as not to flood the engine. This should be doable with a P-40 without too much trouble.

If you do get one, forget about the 18" props till it's broken in. A 16-8 or 17-6 would do fine.

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Fly it till you break it!

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Post #: 332

RE: My 2300 only likes one prop - 3/25/2006 8:32:12 PM

Cyclic Hardover

Posts: 7252
Joined: 5/7/2002
From: New Mexico, USA
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"Running the engine inverted is not an issue, but the tank must be low enough as not to flood the engine?" Call me crazy, but that seems like and "issue" to me.

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Post #: 333

RE: My 2300 only likes one prop - 3/25/2006 9:03:59 PM

BillS

Posts: 3100
Joined: 9/6/2004
From: Greensboro, NC, USA
Status: online

Jeff,

Lets see. You are going to have a P-40 warbird with inverted engine and the airplane is likely to have retracts. If it is like most warbirds it will not glide. And you are considering an engine known to be finicky and require fiddling. Unless you are an expert at dead sticks and the sometimes repair that happens without power you might want to rethink the choice of engine.

Some here have been tuning engines for fifty years and can make anything run. Some are likely to be like one of my friends who fly’s so he can build. At minimum consider finding a less fragile airplane to work out the engine problems because there will be issues. Fourteen pages of conversation about the engine should be a warning.

Bill

< Message edited by BillS -- 3/25/2006 9:06:42 PM >

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Post #: 334

RE: My 2300 only likes one prop - 3/25/2006 9:30:17 PM

speedster 1919

Posts: 1479
Joined: 12/17/2004
From: Martinsville, IN, USA
Status: offline

BILL S I think if you sum up the 14 pages on this engine only a few switched carbs. Alot was chiming in that they had no problem with factory carb and made prop recomendations.

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Post #: 335

RE: My 2300 only likes one prop - 3/25/2006 11:26:45 PM

Not24

Posts: 999
Joined: 12/7/2002
From: Gloucester, VA, USA
Status: offline

The 2300 is the best engine I ever ran, period. It starts easy, runs till the tank is dry, and spins a big prop really fast. I can even do loops! One time, I was flying around with my 2300 and the muffler fell off! The thing just kept on running. They must build these things in the same factory as the energizer bunny. They don't even need a carburetor. All you have to do is squirt fuel right into the intake and it will scream. The hard part is doing this in flight. I put my 2300 on my Somethin Extra, just to see if it would hover. Boy did it!!!! Good thing I put the wires on the tail, because that plane was fast! Too bad I only got one landing out of it. Oh well. Now I'm gonna get another 2300 and make a twin. I was thinking about converting a p51 into a twin. The high wing loading will make that sucker really fast! Those engines are so reliable, I don't even have to consider flying on one engine. That'll never happen. Boy am I happy I got that 2300! Everyone else at my field loves to watch me fly, because that engine is so powerful. I wish I had more money so I could buy more supertigres. I'm thinking about selling all my OS.s, because the St's are so much better.

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Fly it till you break it!

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Post #: 336

RE: My 2300 only likes one prop - 3/26/2006 1:21:17 AM

jeffk464

Posts: 1244
Joined: 10/31/2004
From: cerritos, CA, USA
Status: offline

Funny you should mention it, I am an expert at deadsticks.

I flew 2 meter and slope gliders for many years and since then have had many dead sticks with a tower hobbies .46 and bisson muffler. I always fly with the idea the engine can quit at any time and watch my speed and altitude accordingly.

I have had good luck with other engines with mixed reviews, either I'm good at tuning them or my expectations are low. The tower .46 was only touchy due to the bisson muffler, easily fixed by blocking off one exhaust stack.

My engine history:
Magnum GP .25
Magnum GP .40
tower hobbies .46
gms .47

None of these ran well out of the box except my magnum .25, that engine is unstoppable and still runs perfect at the tender age of 10.

So it sound like this engine will take me a while to get broken in and tuned well, but once I do, it should run fairly well with the occasional hesitation. Does this sound about right or am I off base?

(in reply to Not24)

Post #: 337

RE: My 2300 only likes one prop - 3/26/2006 2:03:05 AM

Not24

Posts: 999
Joined: 12/7/2002
From: Gloucester, VA, USA
Status: offline

quote:

ORIGINAL: jeffk464

So it sound like this engine will take me a while to get broken in and tuned well, but once I do, it should run fairly well with the occasional hesitation. Does this sound about right or am I off base?

No, you are exactly right. All I was saying before was to try it out for a while on the ground while breaking it in. Experiment with different props, because they make a big difference. Mine originally ran pretty well on the ground, and only showed signs of not being quite right once airborne. It may be that it wasn't quite broken in. I'll never know the answer to that. Just plan on running a few gallons thru it to get it right. I would put it in the air in another plane if I could, before going in the P-40. Things are always different in the air. As a last resort, it will run fine with a carb change, but you may not need to go there.

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Fly it till you break it!

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Post #: 338

RE: My 2300 only likes one prop - 3/26/2006 2:20:58 AM

Cyclic Hardover

Posts: 7252
Joined: 5/7/2002
From: New Mexico, USA
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Jeff, a Warbird and a 3D plane are two totally different types of flying and throttle management. It's night & day, left or right, up, down etc. It's not the same. We have guys here that are doing one or the other but not both so they have no clue. We also have guys who have done both and that do have a clue and you need to find them.

It's like that other thread here somewhere on the guy that wants to install a 90 in a 40 size P51. One guy is crying like a baby as to how bad that will be yet he is obviously not speaking from experience .

I have been flying the 2300 on my Mustang for a year now. If I had to guess, I probably have at least 100 flights and not one deadstick nor a threat of one. Properly tuned and set up, you should be just fine.

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Post #: 339