dckrsn

Found this and ............[youtube]http://www.youtube.com/watch?v=KKtjxH7getI&translated=1[/youtube]
Yep, this is porn for me.
Dosen't quit hit full song, but idles real low.

icerinkdad

I have to admit I have never seen a Cox run that slow... but the prop looked like a 7" electric prop... way too much disk area to generate much power. When he gets it to work with 5.5X4 on it I will be very interested.

dckrsn

I agree, but it's Saturday night and there's nothing on.

build light

I love the ground clip he is using... Where have I seen those before?

Robert

skaliwag

My Feedback: (1)

And where did the carb come from?

Lost Glider

Here's another video from the same guy.
http://www.youtube.com/watch?v=nHC3_OAbmGo
It's hard to tell if this is being throttled or choked. I have been working with surestarts with exhaust restricting throttle rings. Some of the engines will sputter away at 3500 RPMs for several minutes while other engines may die at 5500 RPM.

fizzwater2

My Feedback: (61)

the clip looks like one of those that holds the window cranks on the inside of old car doors..

build light

You are exactly right. All my old Fords had them. GM used them too.
Ido like the way it enabled you to use regular test leads and clips to get the fire to the head.

Robert

Yuu

Right about the 1952 Chevy window handle clip. Door handle clip too. For the carb, I built a simular arrangement using an AP .09 carb and a short piece of rubber windshield wiper tube [remember the old 'vacuum wipers'?] but the carb was directly behind the grey plastic motor mount and required a different engine mount. I suppose a 90 degree turn could be made from copper plumbing elbows. But my Sure Start never ran that slow: Humm? Wonder if I could use a 9X6 wood prop cut down to 8X6, as the Texaco guys do to get a slower rpm so they don't use the fuel so quickly?

AndyW

My Feedback: (1)

If you double click on the video, you get the YouTube site with the text at the right. I went to Google translate and the language is Thai.

============================

Experiment using cox .049 Die Cast with caburator produced by your bugzidor ... made in thailand ... using oil L. Gordon Horn shark brand lubricants used 75% 20% Lahueg Night Petrochemicals 5% run-. 2 fuel tanks in each 20 cc ....


============================

I think that he's eliminated the original needle assembly and is feeding the engine directly with this throttle. Note the fuel line going to the throttle instead of underneath. The needle itself, though, looks like its from the Surestart so bugzidor may have made the throttle as a one off.

flyinrog

My Feedback: (1)

Doesnt seem very practical, if you cant blip the throttle at least...if it needs to move that slow, what application would work?..Rog
neat idea..

dogbiteken

am i seeing the video right or did he start the engine backwards????







"Help! Jane! Stop this crazy thing!" George Jetson.

Bugzidor

I'd designed this carb., since, '07, and the latest version shown, they have been launched to Thailand local market. Really, popular and cheap...!

If, you'd like to see, how the throttle response(my previous version, same design, but, much smaller)
http://www.rcuvideos.com/item/D125TSC8FFZB4YS6/received

build light

Ok, Cheap got even my curiosity up. How and where and of course how much?
I haven't any Thai in a while.
Robert

Bugzidor

I have already answered at the topic '.049 engines by cox'. Thanks.

AndyW

My Feedback: (1)

Here's the link.

http://www.rcuniverse.com/forum/m_72..._3/key_/tm.htm

Bugzidor

My new idea to cut the engine noise...
The muffler is very cheap and ease to make, because, it was made from a scrapped piece of Aluminum window/door frame.

AndyW

My Feedback: (1)

Is there a power loss?

cyclops2

There appears to be a air atomizing hole at the needle height for the rock solid idle mixture & the snappy response from idle. At WOT it would effect nothing.

The way a carburator was built.............. before all of us had to have a computer chip to feed gas into each cylinder.

Rich

AndyW

My Feedback: (1)

Sorry, for not being clear. I meant power loss with the muffler.

NEW222

Bugzidor, more details please. A drawing would also be great. That looks very professionally built too.

Bugzidor

Yes, there is a slightly loss, actually, we have to trade between the noise reduction and the engine rpm., the lesser the engine noise, the more loss the prop. rpm. I have measure on the same condition, I can read 11,160rpm. with muffler(one shown in the picture)and 12,690rpm. without muffler (prop. 6x4", nitro15%). Unfortunately that, I have no sound level meter to compare the noise.

Bugzidor

Whcih one do you want to get more detail, throttle or muffler?

Bugzidor

Comparison the engine rpm. between with and without muffler, same loading condition.
http://www.rcuvideos.com/video/Cox-S...-simple-design
http://www.rcuvideos.com/video/Cox-S...latest-version

combatpigg

My Feedback: (3)

Bugzidor, if you do your testing with a 6x3 prop, I think that will better represent what most guys use on their .049s. The 6x4 prop is a slight over load.
Your engine accesories look very good!