It's a Boy!
01-26-2013, 06:02 AM
#1
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It's a Boy!
After a long absence of anything glow- I put this engine together from bits, though it needed a new piston and rod, and those bits and the muffler and exhaust collector (and new cylinder porting- Fora .020's are lemons, stock) are mine.
It hand started, which is always a good sign, and spun a 4.6 x2.6 at about 16k on its first run.
Stefan
It hand started, which is always a good sign, and spun a 4.6 x2.6 at about 16k on its first run.
Stefan
01-26-2013, 10:21 AM
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RE: It's a Boy!
ORIGINAL: fizzwater2
(can't resist....) It's got a rod.
(can't resist....) It's got a rod.
Cool little project. That's a 1/2A combat prop, spins it pretty well.
01-26-2013, 10:32 AM
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RE: It's a Boy!
ORIGINAL: Japanman
(and new cylinder porting- Fora .020's are lemons, stock)
(and new cylinder porting- Fora .020's are lemons, stock)
......ain't that the truth-never met any owner who had a good word to say about them!........trouble is-the VA 020 is no better..........Bill Atwood/Leroy Cox got it right back in 57/61 with the PeeWee and TD. I wonder how much R&D they did.......obviously a lot more than Mr Fora and Mr VA.....
ChrisM
'ffkiwi'
01-26-2013, 01:40 PM
#7
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RE: It's a Boy!
...Didn't you see it has a little needle valve pokin' out there?
16k is a little bit on the weak side, to tell the truth, but it runs very sweetly, and has excellent fuel draw, so it may wake up a bit more on a smaller prop.
After running it open exhaust for the first run, I made a longer clone of a novel muffler and ran it with that. Finally, I put in some very thin walled fuel tube in the outlet, which restricted it to about 1.6mm. The rpms and needle stayed about the same, but it was very quiet.
S
16k is a little bit on the weak side, to tell the truth, but it runs very sweetly, and has excellent fuel draw, so it may wake up a bit more on a smaller prop.
After running it open exhaust for the first run, I made a longer clone of a novel muffler and ran it with that. Finally, I put in some very thin walled fuel tube in the outlet, which restricted it to about 1.6mm. The rpms and needle stayed about the same, but it was very quiet.
S
01-26-2013, 05:24 PM
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RE: It's a Boy!
I`m verry glad to see you are back n the prop swn of things ; do you have an y further plans for gttng mor power out of that engine? I wouold think it may b possible for a person of your skills to get more than that sort of power out of an engine if you endevor to do so,no disrespec by the wayt, I am just wondering
01-28-2013, 05:02 AM
#9
Thread Starter
RE: It's a Boy!
Hey Jasper,
To tell you the truth, I am pretty pleased with about 16k with that prop. The thing is, that's a huge prop for a 20 .
My peewee 020 only does about 18k with the cox 020 prop, which looks tiny next to the combat prop.
Tonight I tried a few more props, and I think this is a keeper. I tried a pink 4.6x2.2 ( I think that's what it is...) which I has narrower blades and is a thinner, better prop than the first combat prop.
The engine seemed to pick up quite a few rpms, and seemed to get into what must be its power band.
S
To tell you the truth, I am pretty pleased with about 16k with that prop. The thing is, that's a huge prop for a 20 .
My peewee 020 only does about 18k with the cox 020 prop, which looks tiny next to the combat prop.
Tonight I tried a few more props, and I think this is a keeper. I tried a pink 4.6x2.2 ( I think that's what it is...) which I has narrower blades and is a thinner, better prop than the first combat prop.
The engine seemed to pick up quite a few rpms, and seemed to get into what must be its power band.
S
