BadAzzMaxx

I have converted a few ZDZ engines to Rcexl ignitions and always had to drill and tap one hole to make the standard sensor brackets work.

Rcexl has a new universal adapter now that you do not have to do that, just mount it as far as it will go counter clockwise from the front of the engine and the timing will be set between 29-30 deg before top dead center. All the engines I did with the standard bracket was the same way but did have to drill and tap threads for one screw on them.

You do have to do away with the old plug system and use a NGK BPMR6A spark plug.

Milton

Campgems

I just received three of the RCexl ignition units. One for a twin and one single. both with caps for a 1/4-32 sparp plug. The third wasfor converting aZenohaG62. The two 1/4-32 size units came with two sizes of pickup holders.One will fit nicley on a 1 1/2" hub and the larger on a 2" hub. Of course neither of the engines I'm going to mount it on has those size nose castings.

Don

BadAzzMaxx

what engines are you trying to mount them on.

Milton

Campgems

The twin is going on an old Tartan twin that is currently a glow engine. The single is kind of up in the air right now. At first, I was going to set it up on a Saito 150 butI have a newThunder Tigre S3000 that is begging for some spark. If I go with the Saito, I'll use the stock carb. but the S3000 will need some carb help. That one will be the easiest to do because the crank case nose has a nice wide straight end. I will have to make an adapter ring to get allow it to work with the stock drive hub though. There is quite s step between the nose and the hub. Close to a half inch. The Saito is also going to take some planning, the crank is webbed right out to the hub, so I'll have a tight fit between webs. The Tartan has a tapered rear shaft that I'll use for the magnet wheel. I picked up a spare one for the G62 and I'm hoping it is going to be an easy adaption to the Tartan. The shaft size is very close, but I don't know about the taper. Iguess that is what I have my lathes for though.

Don

soarrich

My Feedback: (98)

@Campgems

I have a S3000 I'm going to convert also. The back of the prop drive has a perfect place to put a little round magnet into it, the I'm going to take the sensor out of the black holder and stand it on it's end. My Brillelli 366GT uses this method and it works fine. I'm going to use a carb off an old Ryobi. I'm going to turn down a aluminum piece that goes into the throttle hole then enlarges to hold a phenolic block for the carb. I'll take the pressure pulse right off the front transfer port.

BadAzzMaxx

I have a Saito 150 that I converted and I filed a little off web on the bottom side and mounted the sensor, might be a mistake but time will tell. did it without leaving any stress points.

I drilled and installed screws to hold the sensor, not much meat there so have to do it careful.

Also did a ZDZ 50 yesterday with the same sensor bracket used on the 100 in the picture above, Worked great on it also.

Milton

w8ye

My Feedback: (16)

On my Saito 150, it is the CH style with the sensor bolted under the right front cam cover bolt. The bracket is made from a piece of aluminum angle available at the hardware store.

The bare sensor is JB welded into a slot filed in the front of the bracket.

The magnet is in the side of the ring that is retained with two 6-32 set screws onto the Saito prop drive hub

BadAzzMaxx

Still a little dirty but here is how i did it. The problem with doing it like this is trying to get all in the right spot.

w8ye

My Feedback: (16)

That is more simple than the way mine is done.

Here is a picture of the way mine is done but I think this engine belongs to Jezmo?

BadAzzMaxx

The same way Saito does there gas engines so I figured why not. LOL

One thing you have to look out for is the prop hub is not as wide as it looks, It is recessed on the back side.
That is why the magnet is so close to the edge.

Milton

w8ye

My Feedback: (16)

That new RCEXL sensor bracket should work for converting the gas Saito FG series engines to RCEXL ignition.

The Saito sensor is mounted at TDC so the RCEXL sensor has to be moved 28 degrees advanced.

soarrich

My Feedback: (98)

I got my Grade N40 NdFeB 1/8 x 1/8" magnets at magnetsandmagnets.com I got the 1/8" one because they look like they will fit in the back of the St prop drive, the 3/16" ones you normally see used are too big.

BadAzzMaxx

I was just talking about the way it is mounted, Mine is set at 28 deg before top dead center.

This sensor bracket might let you get the timing right on a original Saito gas engine, Want know until I get one in my hands

Milton

soarrich

My Feedback: (98)

Milton
Are the new brackets for sell? What price?

BadAzzMaxx

I don't think i can give prices on the forums, They come with the bracket and sensor.

Will put them on my site later today.

PM sent

Milton

BadAzzMaxx

Here is a picture of what you get, You cut the sensor to what you need to make it work.

Milton

BadAzzMaxx

I now have them on my site.

Milton

Campgems

The drive hub looks like there is a ring pressed on the back half, behind the grove. Am I seeing it right?

Don

edit
Never mind, I missed the details in an eariler post.
Don

w8ye

My Feedback: (16)

That is somewhat correct. The ring is almost size for size but has two 6-32 set screws in it to hold it in position

Brandon15

Sweet.....I converted my ZDZ 80 way back. I ground on the sensor a lot, finagled it a lil, and got it set at 28-29*. I didn't want to drill on the engine...will have to get one of these next go around!

I would imagine this would work on 3W's also without having to drill and tap?

Speedy-Gonzales

My Feedback: (202)

I have done several Rcexl conversions but never on a ZDZ. The last 2 Rcexl units I bought are intended for ZDZ 60 conversions. ZDZ makes two different "Falkon" ignition modules for their single cylinder engines. One being for the smaller ZDZ 40 and the other is for the 60 and 80cc engines. I know the two units have different timing curves and am curious if any of you guys know what the auto-advance timing curve is on the Rcexl units. I can not believe that a single ignition module ( Rcexl ) will have the correct timing curve for any/all applications.

Answers anyone??? [8D]

Tony Hallo

I am under the impression that most use 22-24 degrees advance at 4000 rpm. I have read that the DLE 20 uses something different but never read what that might be. Keep in mind that most like the C-H and Rcxel retard timing rather than advance, zero retard above 4000 rpm, some percentage of retard below 4000 rpm. I have foundmyZDZ modules are set at 6 degrees BTDC when following the instructions provided.

w8ye

My Feedback: (16)

I think the DLE 20 is set at 35 degrees at the factory.

mpascual

My Feedback: (1)

Believe it.
I've mounted RCEXL model A01 ignitions on :
Saito 82, 120, 150, 180 with glow fuel , FG14, FG20 FG36 on gas, OS 91FS, 120Ax glow fuel, Supertigre 2300, G90 glow fuel , Zenoah 20, 26, 38, 45, 62 and 80 twin, DA 50R DA100
ZDZ 40, 80 , 3W55, CRRC pro GF26I, V2, GF40I, GF45I, GF50I, GP26R, GP50R, GF55I twin (stock from factory), SPE26, TGY 50, Webra bully , RCFG 15, 20, 26, XYZ26S , .......
And some more i've forget and in all cases , i'm happy with results, also the engine owner.
I know the timing curve for RCEXL A01 single and twin, but i'm not authorized to publish , sorry.
Maybe the RCEXL timing curve is not the best for ALL RC engines, but i doubt about the ignition supplied with all engines are optimized. Many of them are made outside the engine's factory and are used by many engines models/brands.
Regards

DemonDean

My Feedback: (4)

I’m still a little confused. Being a newbie doesn’t help either. I have an older ZDZ60RV.
I have been trying to get this thing to run for the last year or so, on my engine test stand.
First it works then it doesn’t. Pain in the butt. I have changed carbs, rebuilt the carbs, great pulse port pressure.
Almost too much. Sometimes the carb floods to easy. So here is the real question. Is the ignition working or not?
And what is the real timing set for. If I use the instructions from http://www.falkon.cz/download/en.pdf
the timing turns out to about 10 degrees before TBC. This is also pretty maxed out as far as I can turn the bracket.
So if I choose the conversion route, this will take the timing to 28-30 degrees before TDC. Is this correct and expectable?
I don’t mind purchasing the parts etc. just don’t want to create more problems.

Would any of you guys know the correct carb for this engine??
The one on it right now is a WT71, (Walbro). I think that this version has been discontinued.

Dean