Originally Posted by CH Ignitions

Hello everyone , for a year and so I had those prop drives made and never lested on the site.I sold them on call based orders.
We have the prop drives that are designed to solve ALL the timing issues. The Over Timed issue and between the Cylinders in all series FG19-FG33_FG60 and FG84/90. The FG73 is just over timed. The timing between cylinders is correct..
You can find all on the CH Site.
https://ch-ignitions.com/product-cat...drive-upgrade/

Thank you
Adrian

Originally Posted by CH Ignitions

Hello everyone , for a year and so I had those prop drives made and never lested on the site.I sold them on call based orders.
We have the prop drives that are designed to solve ALL the timing inssues. The Over Timed issue and between the Cylinders in all series FG19-FG33_FG60 and FG84/90. The FG73 is just over timed. The timing between cylinders is correct..
You can find all on the CH Site.
https://ch-ignitions.com/product-cat...drive-upgrade/

Thank you
Adrian

Originally Posted by nswords

I have it in a TF FW190 and it flys well,not quite as fast as a 55 cc gas but the sound make up for it.

Originally Posted by marksp

I see the step-by-step instructions, thanks! It would be great to see short video of the process :-)

Originally Posted by marksp

I see the step-by-step instructions, thanks! It would be great to see short video of the process :-)

Originally Posted by CH Ignitions

...But I will make a video. The process is the same for all 5 engines.
Thank you
Adrian

Originally Posted by CH Ignitions

Yes I make them. Now the FG75 will fit the FA325 . I made it to be compatible.

Thank you
Adrian

Originally Posted by hpergm

One more: first flight of a Top Flite FW190A with an FG-60R3.

https://www.youtube.com/watch?v=x_MYY0NlbQY Prop is an APC 22x10 with a top end of 6,800. Mix was 1:20, using Castrol Synthetic. The engine tuned easily (6.5 turns out on the low and ~2.5 turns out on the High) and Ran like clockwork.

The on-board telemetry sensors for temps (1 per cylinder) showed only a deviation of <2degrees C on the ground (idle) and in flight for (mid-range)..! Seems like the careful running-in (see previous posts) paid dividents.. Temp range was between 80-90C on the ground.

Note: readings are taken between the fins just below the spark plug, on the rear side (to avoid speed/cooling effect of oncoming airflow). In reality, CHTs will be 30-40C higher on near the top of the combustion chamber.

A +20C difference between Nos 2&3 and No.1 (top cylinder) was recorder after prolonged mid/high throttle settings in the air. This was expected due to the relief airflow arrangement in the cowl (louvres only on the bottom side for scale reasons suck more cooling air around the bottom cylinders...).

A Happy customer!

Originally Posted by CH Ignitions

I will try to do it next week . The process is so simple, I made it preset so you donot have to do any guess work.
But I will make a video.
The process is the same for all 5 engines. I will use I think the FG 90 that I have .

Thank you
Adrian

Originally Posted by Trommeldave

Very nice!!
Where did you get the radial engine dummy or is it selfe made?
Regards, Dave

Originally Posted by hpergm

Hi Dave, the dummy engine was included with the TF kit. Just painted it...

Originally Posted by DeeCee 57

RoKit, not sure u are on the right forum for your engine, this one is for the Saito FG-60R3...

Originally Posted by RoKit

Thanks, but I can´t find a FA170R3 forum and was thinking that the R3 series are more or less the same design and only "scaled"..
Hoping for some experience to be shared..

Originally Posted by elmshoot

I didn't realize you were asking about another engine if its a recently introduced (I hadn't noticed) engine maybe they have addressed the issues that have plagued the 160 engines.
When you get your timing kit before you take anything apart, determine what the factory timing is set to if its about 28 degrees it is safe as not too early and
I wouldn't change anything. Run it like its a properly set up engine from the factory and have fun report back any issues.
Sparky

Originally Posted by Hyjinx

Start one Rokit. Maybe on the R450 too. Folks that watch this Saito thread are very specific.
I have several of these triples and so do my flying buddies. Maybe a general Saito radial thread would be a better option for those of us with a wider range of Saito interests.
Just sayingAaron-

Originally Posted by elmshoot

I didn't realize you were asking about another engine if its a recently introduced (I hadn't noticed) engine maybe they have addressed the issues that have plagued the 160 engines.
When you get your timing kit before you take anything apart, determine what the factory timing is set to if its about 28 degrees it is safe as not too early and
I wouldn't change anything. Run it like its a properly set up engine from the factory and have fun report back any issues.
Sparky

Originally Posted by Hyjinx

Amen.
I haven't had any issues with mine. And haven't seen a failure of any at our field.
I feel most of that was a result of a disgruntled owner with too much money that bought a lemon used and besmirched the line of perfectly acceptable engines when it failed catastrophically.
Options made by others may have been improvements and we're accepted by Saito eventually. But overall I have a high opinion of the Saito offerings in radial designs.
Just sayingAaron-

Originally Posted by RoKit

Thank you gentlemen.
As soon as my ignition arrives I will start to mount it on and do some tuning.. Will post the results.
The advice from Morris mini motors is 30dg from tdc, I suppose that 28-32 will be ok to "play" with ?