I need something with more pulling power than a Black Widow. Suggestions?

If you are comfortable with diesel then you could get a paw .03 they make about as much thrust as a tee dee .049 or get a paw 049 or 061 they are all great engines.
But if you want a really high rpm engine your best bet is to get a certain Russian engine beginning with the letter "n" or just put a tee dee .09 on it or a thunder tiger tt .07 all the engines listed are more powerful than a blackwiddow.
There are other options like maybe a Shuriken .061 only kidding they cost about 700$ and are competition engines but there are varios: Brodak,CS,MPjet,Asp,VA or valentine engines.
Ther are also lots of other Enlish diesels but they are rare and expensiv epitaphs the UK.

or get a venom. they go for a very good price, and they are abundant on ebay

You know what's better than a black widow?
Two black widdows

duh,you're SO correct!!!

How bout three?

or of course one with twenty tank extenders!
but, seriously,the tee dees are definitly the strongest bunch of the cox 049, except the
venom, which is the freak in the group. though there is another one, the killer bee,
from which the venom derived. it has spi and a balnced HP-Crank shaft.
it also has a high intake flow back plate. they might be a bit pricey (70$, but i could
be wrong) on ebay, but they definitly have more power than the black widow

RknRusty wrote:I have a Stuntman23 that is really fun to fly, but the .049 is at the minimum on the list for this plane. Due to 13 years of repairs, it's a little heavier than it used to be and I would like to speed it up. I know there are several Tee Dee sizes but I know nothing about them.
Can someone give me a rundown on their strengths and weaknesses, or recommend something else? I want to be able to get spare parts too.
Thanks,
Rusty

First question is, are you getting all you can from your BW? Are you using a high performance glow head? Higher nitro, say 35%, how about different props...say an APC 6x2?
Otherwise, if you can score a NORVEL tank mount, the tank will fit in the same holes as your BW and a TeeDee .049 will mount in the same holes as the NORVEL .049/.061 so you can maintain your radial mount. Of course you could use a Cox mount but I don't know if you can plumb them for stunt.
Plan C would involve rebuilding the front end for a beam mounted engine. You could then use a TD .049/.051 or perhaps an .061 such as a PAW, NORVEL, or AP Wasp. The TD, NORVEL, and WASP all have the same mounting holes, although the crankcase is just a bit wider on the NORVEL and WASP. I don't have a PAW .061.
An .09 may have more power than you need for stunting, although with longer lines it may be OK.
Good luck whichever way you go.

George

A paw I think is your best bet they are easily available and extremely easybto stet and reliable.

gcb wrote:

RknRusty wrote:I have a Stuntman23 that is really fun to fly, but the .049 is at the minimum on the list for this plane. Due to 13 years of repairs, it's a little heavier than it used to be and I would like to speed it up. I know there are several Tee Dee sizes but I know nothing about them.
Can someone give me a rundown on their strengths and weaknesses, or recommend something else? I want to be able to get spare parts too.
Thanks,
Rusty

First question is, are you getting all you can from your BW? Are you using a high performance glow head? Higher nitro, say 35%, how about different props...say an APC 6x2?
Otherwise, if you can score a NORVEL tank mount, the tank will fit in the same holes as your BW and a TeeDee .049 will mount in the same holes as the NORVEL .049/.061 so you can maintain your radial mount. Of course you could use a Cox mount but I don't know if you can plumb them for stunt.
Plan C would involve rebuilding the front end for a beam mounted engine. You could then use a TD .049/.051 or perhaps an .061 such as a PAW, NORVEL, or AP Wasp. The TD, NORVEL, and WASP all have the same mounting holes, although the crankcase is just a bit wider on the NORVEL and WASP. I don't have a PAW .061.
An .09 may have more power than you need for stunting, although with longer lines it may be OK.
Good luck whichever way you go.

George

Using over 25% nitro will wear your motor out prematurely. Diesels will give you more torque than flat out speed. I'd go with a bigger engine.

ditto.

microflitedude wrote:

gcb wrote:

RknRusty wrote:I have a Stuntman23 that is really fun to fly, but the .049 is at the minimum on the list for this plane. Due to 13 years of repairs, it's a little heavier than it used to be and I would like to speed it up. I know there are several Tee Dee sizes but I know nothing about them.
Can someone give me a rundown on their strengths and weaknesses, or recommend something else? I want to be able to get spare parts too.
Thanks,
Rusty

First question is, are you getting all you can from your BW? Are you using a high performance glow head? Higher nitro, say 35%, how about different props...say an APC 6x2?
Otherwise, if you can score a NORVEL tank mount, the tank will fit in the same holes as your BW and a TeeDee .049 will mount in the same holes as the NORVEL .049/.061 so you can maintain your radial mount. Of course you could use a Cox mount but I don't know if you can plumb them for stunt.
Plan C would involve rebuilding the front end for a beam mounted engine. You could then use a TD .049/.051 or perhaps an .061 such as a PAW, NORVEL, or AP Wasp. The TD, NORVEL, and WASP all have the same mounting holes, although the crankcase is just a bit wider on the NORVEL and WASP. I don't have a PAW .061.
An .09 may have more power than you need for stunting, although with longer lines it may be OK.
Good luck whichever way you go.

George

Using over 25% nitro will wear your motor out prematurely. Diesels will give you more torque than flat out speed. I'd go with a bigger engine.

I always run and alway have run 25% .010 and .020 engines do not like anything less.

Looks like the difference between a Venom and a BW is the piston, cylinder porting and the crank. The BW has deeper porting than all the rest of the Bees except for the Venom, as far as I can tell. I compared the depth on every dual ported cylinder I have with a dial caliper. I don't see a Venom for sale on eBay or anywhere I checked quickly before I typed this reply. I'd like to have one if I can afford it. I could build one if I could get the piston/cylinder pair and a Killer Bee crank. Is the crank the same as a Tee Dee?

I am getting all I can get out of my BWs with 25% fuel. I'm not going to run 35%. I have tried a 5-3, 5-4 and 6-3 prop. But I am using regular glow heads. The heads I bought from Bernie ran super fast for a few laps and fried. I was told to use 2 spacers to prevent that from happening. Right now I think I have old Cox made heads on them. They run really good fast and steady. Of the three BWs I own, one is significantly faster. I think it's just one of those diamonds in the rough. I use it on my Jumpin' Bean, but I might swap them between the two planes and see what happens. The oldest one, I bought in '93 has a mismatched piston in the cylinder(my screwup) but it seems to run fine on the rare occasion I use it. I suppose it would be a bad idea to put a new piston in it.

the thing with the venom was a joke
you should look at matt and bernie's custom engines which they sell in their shop. they sell
them for a very reasonable price and are quite pretty.
this one here even has a lightened piston:
http://www.exmodelengines.com/product.php?productid=17565&cat=256&page=2
but if you're looking for serious rpms, this one might just suit you:
http://coxengines.ca/product.php?productid=327&cat=37&page=1
that pretty much matches venom performance

GermanBeez wrote:the thing with the venom was a joke

Doh!

GermanBeez wrote:...but if you're looking for serious rpms, this one might just suit you:
http://coxengines.ca/product.php?productid=327&cat=37&page=1
that pretty much matches venom performance

I put that red backplate on the back of a BW that I'm using on my Stuntman that I converted to an external tank. But I may be having fuel feed problems due to positioning. It's a work in progress. It ran fast on the test block but it sounded about like the stock BW. That package might be faster with the new style SPI. I've never tried one of those piston/cylinder sets. That might be the answer if i get it positioned correctly though. Thanks.

yeah, can understand that the BW would not perform much better with the high flow back plate, as its
stock tank already has a larger venturi diameter. you can also buy seperate crank shafts, milled
after the original killer bee ones, they're called "killer cranks"
both bernie and matt have em.

Well at least it flies right now. I'm going to put the faster BW on it and move on to my next project. I'm starting my first scratch build. I want a speed demon of a stunt plane, and started to make a Little Devil to replace my old busted one with some mods. But everyone at RCG in the Builders Workshop says it's a dud. So I'm going to get bold and design it myself. A first for me.

I started a blog in my profile over there about building the Little Devil, so I guess I'll have to delete it and start another. You can see in the builders workshop where I was headed off from wasting balsa on a kludge. The thread is [bleep] "how to shape a hollow log" or something like that. But I thank all of you who took an interest in my thread. When I get the big money , I'll invest in a hot power plant for the Stuntman.

Rusty

Don't be discouraged with the Scientific Little Devil. There may be better planes but look at the memories you have tied up in it.

I had one back in the mid fifties when they had the thicker (~3/16") airfoiled wings. Remember that those planes were mostly designed for the OK Cub and the tank was buried in the fuselage. Using something like a Black Widow will put the CG forward and cause it to be nose heavy. If you re-consider it, think "product" engine without a tank...perhaps a Sure Start, although you might consider removing the choke tube, or even use the older 290 (pre choke tube).

Mine used a Space Bug Jr. and it was a bit nose heavy.

BTW, what is RCG?

George

gcb wrote:
BTW, what is RCG?
George

George --
I think he's referring to the RC Groups forum.

andrew

gcb wrote:Don't be discouraged with the Scientific Little Devil. There may be better planes but look at the memories you have tied up in it.

I had one back in the mid fifties when they had the thicker (~3/16") airfoiled wings. Remember that those planes were mostly designed for the OK Cub and the tank was buried in the fuselage. Using something like a Black Widow will put the CG forward and cause it to be nose heavy. If you re-consider it, think "product" engine without a tank...perhaps a Sure Start, although you might consider removing the choke tube, or even use the older 290 (pre choke tube).

Mine used a Space Bug Jr. and it was a bit nose heavy.

BTW, what is RCG?

George

I have one of the large bore red backplates and a wedge tank to run with the front end of a Black Widow.
Like this:
That was the plan. I think I'm going to go ahead and build it since I have the balsa block. But for my wild urges I'm also going to build a combat plane like a Li'l Satan, or a similar one a member at RC Groups suggested. I'll start calling it "RC Groups" instead of "RCG." A lot of us here at the Cox Engines Forum came from there.
Rusty

Rusty,

Thanks. I checked out RCG...come to find out I had joined it in Sept 2008. My interest lies mostly in CL, although I still have three ancient RC sets. There was not much CL activity back then so I stopped going there. Think I'll start checking it again.

I came over here from another CL site. Seems to be some of the same folks on various sites.

gcb wrote:Rusty,

Thanks. I checked out RCG...come to find out I had joined it in Sept 2008. My interest lies mostly in CL, although I still have three ancient RC sets. There was not much CL activity back then so I stopped going there. Think I'll start checking it again.

I came over here from another CL site. Seems to be some of the same folks on various sites.

Then i am guessing you came from another one of my links probably on RCU i am on all sites under the same name.

RknRusty wrote:I have a Stuntman23 that is really fun to fly, but the .049 is at the minimum on the list for this plane. Due to 13 years of repairs, it's a little heavier than it used to be and I would like to speed it up. I know there are several Tee Dee sizes but I know nothing about them.
Can someone give me a rundown on their strengths and weaknesses, or recommend something else? I want to be able to get spare parts too.
Thanks,
Rusty

Rusty,
Just my $.02.
Have you considdered trying a
new piston/cylinder assembly to
breath some life into that
Black Widdow?

Bob

dckrsn wrote:

RknRusty wrote:I have a Stuntman23 that is really fun to fly, but the .049 is at the minimum on the list for this plane. Due to 13 years of repairs, it's a little heavier than it used to be and I would like to speed it up. I know there are several Tee Dee sizes but I know nothing about them.
Can someone give me a rundown on their strengths and weaknesses, or recommend something else? I want to be able to get spare parts too.
Thanks,
Rusty

Rusty,
Just my $.02.
Have you considdered trying a
new piston/cylinder assembly to
breath some life into that
Black Widdow?

Bob

That engine only has about an hour on it. I bought two brand new ones in June. They had been in the box since 1995, so before I broke them in, I replaced the venturi o-rings, cleaned them out with denatured alcohol and lint free rags(I finally learned that paper and linen towels can cause irregular fuel flow through the tiny orifice). You can't get a cylinder with bypass ports like the #1 any more. They look like other SPI dual port cylinders, but if you measure with a caliper, the #1 has significantly deeper ports. So when they wear out... they are gone.