:D everything is for sale these days... :D

most definitely 😆..

Wow!!! Had a busy week and Had to spend 30 minutes catching up :D.

You fellas have hit on an issue with our systems. We can develop some great solutions and build some great parts but building them for general consumption is troubling and time consuming... I wish I had the shop time to build a bunch of TBI bodies for all of you and others but I have been trying for a month to get a plane covered.. Just not enough time in a day. Sometimes I even feel guilty not being able to do this as its a system with so much promise and potential. I have had a few "builds" like this that I would love to make for "general consumption" but reality is I must work to keep fed and warm.. (at least for a few more years) .

I have many engines n the collection that I Plan to "convert" when time allows - made a pact with myself to stop buying more, all this radial talk is making me itchy!!!!!!! :o

Oh, dang Chris, I did not intend to make you feel guilty...

But just imagine, how if you, Dave, Hans and me, and for example that guy that owns the NGH brand, would all have been clubmates...

I think the whole world would have been flying gasoline within a few years.

Downside is we also would all be living in China... :D :D :D

Edit: Been thinking a little bit more about it, and all in all, it would probably not be too big of a problem for me to arrange for small series work (say, 100 per production run) of those throttle bodies in CNC production, but even with a zero profit margin I probably won't be able to keep te price below 75~100 Euro a piece, and that is without solenoid or driver. MAYBE... I would be heavily leaning on volunteer work of friends and aquaintances to convert the drawings into CNC files, and I would have to do assembly work by myself manually, all unpaid. It would take months because I would have to wait for timeslots when the machines of the shop my buddy works at to have an idle day allowing for a run of parts.
That is, however, not even the biggest issue. If I could arrange it, I would be happy to.

The issue is that it would be an after market piece, and there is no specific target market. There are too many different engines out there, with all their specific carb mounting dimensions, throat diameter, nozzle size and what not.
And I do NOT have the possibility to make them "to order" for that price.
Now if we would all be running the exact same engine, it would be doable, but we are not...

In order to make something like this viable, it would have to be integrated with the engine design, basically. That is the only way that I see it economically viable. For a "Sanye-like" company (bluntly put: basically any company that is able to deliver decent quality but does not spend too much on R&D but copies exisiting stuff), it would be an easy job to adapt the drawings for their standard carbs into throttle bodies, and start supplying them instead of carbs. It would even be feasible to have drivers made and purchase a stock of solenoids and ignitions and sell their engines as "EFI gassers". Could even be fairly cost effective. Being in China, buying all materials and parts from their local market, it would probably raise engine price by less than 50 bucks.
But Sanye did not do that. Instead, they stopped making engines alltogether (which really is a shame, but says enough).

If we want to run gasoline, we have to do it ourselves, each of us individually, and all we can do is share as much information as possible.

So... Don't feel guilty, Chris...

Im definitely not pushing to have one of these systems..although it is a brilliant design..would be great great if at least 1 or 2 became available 😁
i will be proceeding to test out the fg carburettor on the ft160 soon..its a direct fit ..and most likely shourun fairly well

Provided all goes well, in May, I hope to have another 10 sets, of which roughly 5 are allready promised to others.
Keep it in the back of your mind and contact me by then, you might be lucky.

I have now sold all in all about 40~50 sets in varying composition (depending on the buyers ability to make the remaining parts himself) over the past 2 or 3 years. Dave has provided a few of his drivers to others too.

Meanwhile keep us posted on how the FT160 runs with that FG carb. Interesting option, none of us knew it was a direct fit and it opens up a range of possibilities, because if it is a direct fit to the ASP FT160, it also should be a fairly easy task to fit them to the ASP/Magnum fourstroke singles in the 70~90 range and the older OS engines of that range.

My assessment of that is that on one side of the scale, IF the FG carb can be used, that would basically guarantee "instant success", on the other side of the scale the solenoid solution has the potential for a MUCH better mixture control, and cleaner running engines. Of that I am 100% convinced after all these years.

Well seeing end of may..that gives me some time to think..if really i can manage to complete that system..
and check out the cost of all thats required..so cost for a replacement fg carburettor is around $200 au ..
Im from the land down under 😆
I know the fg21 carburettor was perfect on the asp120fs..so i went and sold the fg21 to offset the latest engine purchase.and becausei knew the asp wouldrun better..it wouldhand start with out a doubt..the fg no way..
.and will be getting a fg carb for the asp fs120 ..its a new engine..had it for se for a while..no one seems to like them ..well to bad for them ..they are a great product from China..
i know you love the electronic design..well seeing your video on YouTube with the ft160..now that was a first ..glad to of seen that.. well i would to if i had that set-up..but for now ..the fg carb will do..the fg carb seems to be reliable enough..and more simple then a walbro or similar that ch or mmm sells..witch i guess can buy a carb on ebay for pennys..would most likely be the same as mmm sells ..

Bert... Not so much guilty as a bit disappointed - I have tried a few times with small, very specific products and have had some great success at building things customers loved. But it doesn't work for long ... for the reasons you described. One soon tires of making the same part manually, with great attention and wants to try different things and methods. There is not enough volume to "automate" or farm out production steps for unless you want to do it as a charity. I have had at least 5 products that have fallen into this category. They soon start to eat up free time and you tire of the effort. BUT.....

I do love the conversations here and the back and forth on new ideas - We have proved this "method" works well on most applications and in a variety of formats. RCPDan's plans around the Saito carbs are exciting too as it would be a simple solution.

Just got word we can legally "fly" here again at our field .. its been a bit of a step backward but at least we are not grounded - And I now get an official looking piece of paper from Transport Canada stating I'm an Drone Pilot :mad:.

I can get you two sets including shipping for about €140,- don't know what that is in AU$ but I believe €1 is rougly 1,60 Au$, right?
That means that for the price of one Saito carb, you can convert 2 engines the electronic way, and what is more: That Saito carb will only fit that single engine,
The solenoid is "transferrable" to any engine from 5 to at least 65 cc.

And yes, the ASP 120 FS is a great engine, done several of them as a gas conversion, prefer them over the Saito 120-ish singles (Saito's vibrate a significant lot more).

And if all else fails, there also is the option to mechanically adapt standard glow carbs. Before the solenoid solution came up, that was my go-to method and I have flown several years very succesful with that.

Here are a few "modified carb, no solenoid" conversions, these are my own, so I know absolutely 100% sure that these worked in flight, but I have done these mods at least 50 times for others as well:
(and yes, this vid is from before the solenoid mod).

and this is what I did to those carbs:

Not saying I recommend it, but definitely saying that if all other options are off the table for whatever reason, this also WORKS! I flew like this for at least 3 years without issues. Dirtier planes, more black goo, but never a deadstick.

I know what you mean... on the other hand, together we contributed quite a bit and learned a LOT... and I am still hoping that one day one of us gets that brilliant genius idea and suddenly everything falls into place and results in a marketable idea.

Personally, I could not care less if a manufacturer went with it or not. If "micro gassers" would become availlable to the public for an affordable price and with real world performance and simplicity, that would be reward enough for me.

At some point, I had hope that the tiny NGH would be a catalyst for development, and for a moment it looked like it had (GO GH56, the Evo 8 and Evo 10, RCCG 10 and such) but they all were by and large crap engines with a lot of user-issues and bad reputations as a result.
It does not have to be like that, my engines prove that on a near daily basis.

Hey glad to hear you can legally fly again..no fun if you cant!
I always like it when things are simple..
I got my saito fg21 the other week,barely used it was apparently..it looked clean
as soon as i got it home i came up with the idea to see if the carb would fit the asp120fs..well 30mins later i wS bolting that to the test stand..great thing it ran great..
then the saito,s turn it ended up in pieces after 30mins it turned bad..(gummy valves) well that engine served its purpose and sold it on quickly..
The carb works just fine

Bert
thTs pretty fair..yes $226.60 au its is ..within the same cost of a saito carburettor for sure..
So thats the controller what about the solenoid?
the glow carb well i tested the asp120fs carb on gas it was a bit rough running..extremely sensitive..
Well the grinder trick will make a difference i bet ..well i might just do that to the test engine i have ..see what its like....that 46 runs rather well....
https://cimg6.ibsrv.net/gimg/www.rcu...645cc0f397.jpg

https://cimg8.ibsrv.net/gimg/www.rcu...f0a662b9bf.jpg
https://cimg9.ibsrv.net/gimg/www.rcu...b8e5b45955.jpg
Here is the fg33r3 carburettor sitting in position. Couple of alterations and it will bolt on

I didn't take a fully accurate measurement of the fg21 carburettor before it sold..but im very sure the carb body was 10mm and as these measurements go it would have had a 8.8 throttle

https://cimg8.ibsrv.net/gimg/www.rcu...f0a662b9bf.jpg
https://cimg9.ibsrv.net/gimg/www.rcu...b8e5b45955.jpg
Here is the fg33r3 carburettor sitting in position. Couple of alterations and it will bolt on

I didn't take a fully accurate measurement of the fg21 carburettor before it sold..but im very sure the carb body was 10mm and as these measurements go it would have had a 8.8 throttle

One full set (controller, housing AND solenoid) is give or take €65, and shipping to Oz is between €10 and €20 depending on shipping only, or shipping T&T or shipping T&T + insurance.

Solenoid, housing and controller can also be ordered separately, some folks are wizzards with a lathe, others are wizzards with electronics, and some people can get the solenoids cheaper than me.
Housing is €15
Controller is €20,
Solenoid is depending on what I pay when I order them, I have bought them for €21 but also for €27. I round off price to nearest fiver in order to recover the packaging material and the time invested, but always round off including shipping cost and I am not a pennypincher.(not going to round off for example €70,15 to 75, that would be 70 and in such case I take my loss. It's a hobby after all, and I hate calculus, always have from the very first moment "Ms Teach" jotted that first "1" on the blackboard... :D ).

I think you just did cost Adrian and Morris a fair bit of business :D :D :D

LOVE IT!

Its fun and a good learning curve to make my own stuff when possible..and save some coin..
well last year i brought a conversion from moris..for the saito fa120r3..finally got the package and it was missing the carburettor adapter..so with no hope of fitting the carb..well i made hope on the lathe luckily..and damn moris ..finally 8 weeks later i got the part..poor business..so i asked him also for correct hall sensor (dual pick up) for another engine i have..he was slow to respond and unsure of exact product he sells ..so of to china for me and got what i need...
your pricing is definitely fair...fand haggling for 1 dollar or 2 is crazzy yes....
well i thought going for a fly this morning was a good idea..well the damn spektrum reciever didn't want to..
I probably shouldn't have used a ar410 recieiver with a glow engine..or maybe i had it fitted in the wrong location of the plane..down the plane went into some head high grass field..i was damn lucky to have a Facebook flying club member bring his drone out to locate it before a storm broke out..i had come within 4 metres of finding it before that..i had crashed a plane a week ago because of the damn battery in my transmitter had a glitchy connection..not my best month for sure 😉

Well the Boxer's "Ride" is gettting closer... its starting final reassembly and i'm liking the Layout, weight and planform...should be fun. Needs some graphic trim and aileron attachment.


https://cimg0.ibsrv.net/gimg/www.rcu...d893c36962.jpg
https://cimg1.ibsrv.net/gimg/www.rcu...54b83b0354.jpg

Look at this neat layout - 1/2 speed gear drive off camshaft - Would love to hear one running but can find video...


https://cimg2.ibsrv.net/gimg/www.rcu...f87bf74d2a.jpg

Very cool engine, Chris. Make and size?

What is that, and where can I buy one?

Marvellous idea! Large, slow turning props ALWAYS are a good idea! (Can you tell I flew RC heli for 35 yeaars? :D :D :D :D )

All I can find is that it’s called a BOMO boxer. 20cc. Only a few picture show up online. Or much for discriptions.

I have a reduction drive ’half built/engineered.” Planned for a scale hawker typhoon that “needs” a huge prop and lots of nose weight. Uses a 20 cc zenoah that was set up and ported as a “heli” engine.

This blurb from pinterest:

BOMO Twin
"Manufactured by the Brothers Hanspeter and Manfred Bolanz in Weil am Rhein Germany. Production had a forced stop before the engine could gain in popularity. According to Manfred Bolanz, a total of only 74 engines has been completed before they stopped production due to a forced stop by the bank at the beginning of 1998. They started production with the first engine numbered B-20 111 as the first engine to be manufactured, avoiding starting with serial number 001."

Asp fs91 with fg33r3 carb
 

https://cimg2.ibsrv.net/gimg/www.rcu...ad91c67520.jpg
https://cimg4.ibsrv.net/gimg/www.rcu...fd3dbd9652.jpg
Bit of fiddling today..
the carb was a simple fit..its running a 16x7 prop..
I really need to get a tachometer..id have to say its running at least 6k ..transition is great..
idle well it seems to splutter a fair amount of fuel out the throttle at idle and will die out easy ..so you see the hose of the intake manifold with a tap to bypass air for idle ..it works very well..idle is best at 15 to 1800 rpm rough guess and a bit of servo slow down to prevent anh hiccups..this engine was previously run from new on glow fuel and cdi briefly then i brought it ..before running i could hear air bypassing somewhere when flipping over on compression..wether its passing the piston ring or a valve..but it runs fairly good

That is not even a half bad idea to lean out the bottom and midrange, but I am a bit puzzled by the fact that it apparenly was not possible to lean it out sufficiently on the needle.

Very well possible this solution acts a little bit like the mod I did to my radial ( https://www.rcuniverse.com/forum/12764479-post1402.html ) so it is not unlikely for this to work better than just leaning out on the needles.
But these engines indeed are nice runners, I have one myself and it is a sweetheart of an engine. A bit picky on the prime (it wants a pretty "exact" amount of prime or it won't handstart, but when done right it is a first-flick starter).
In use, cooling is a bit marginal, and attention must be given to proper baffling/air guidance. The devil is in the details here, it took me quite a bit of experimenting before I got it right.

Just a note: Pass the fuel line OVER the HS needle extension, because the way it is arranged now, over time will chuff a hole in the fuel line.