ESE's works engine tuner

[ken seeber]

You would need to consider the rod width, surely? You couldn't go wrong using the RSA dimension. What rod was used, for comparison?

Thnxs for response. My limited understanding is that in many cases the width of the rod (most almost usually the same top and bottom for mfg purposes) is the same as the piston pin diameter, ie a rod for a 14 mm pin is 14 wide. So, in our case, the rod would be 15 mm, which is narrower than either the 18 or 20 mm cage and accordingly the width between the pin bosses. In the narrower case, there is the likelihood for the ends of the rollers to be within the width of the rod eye under extreme end float situations.

We'd even be happy if everyone said they have had no dramas with the narrow cage.

[husaberg]

Thnxs for response. My limited understanding is that in many cases the width of the rod (most almost usually the same top and bottom for mfg purposes) is the same as the piston pin diameter, ie a rod for a 14 mm pin is 14 wide. So, in our case, the rod would be 15 mm, which is narrower than either the 18 or 20 mm cage and accordingly the width between the pin bosses. In the narrower case, there is the likelihood for the ends of the rollers to be within the width of the rod eye under extreme end float situations.

We'd even be happy if everyone said they have had no dramas with the narrow cage.

Look up the common size high performance little end bearings available and size it to suit them.
15 x 19 x 16.7
15 x 19 x 17.2
15 x 19 x 17
15 x 19 x 20
15 x 19 x 20

[Bert]

That motor is a bit old hat now but hopefully will do the business again some day...

Not so much lurking, just not much else to do these days...

Ok, I'm going to bite...
WTF is being built in that jig???
I'm thinking aircraft-ish.... Gyro??

[speedpro]

On end, aircraft engine mount. Firewall mounts are on the bottom.

[ken seeber]

Husa, thanks for the sizes, these are well documented, but really what we'd like to know "has anyone experienced the narrower cages shitting themselves when compared to the wider cages"?

[jasonu]

On end, aircraft engine mount. Firewall mounts are on the bottom.

Chokky fish to that man.
http://www.lancair.com/legacy/

[Flettner]

That motor is a bit old hat now but hopefully will do the business again some day...

Not so much lurking, just not much else to do these days...

What are we looking at? An aircraft engine frame? Last picture. Oh, I need to read to the end before posting, sorry.

[F5 Dave]

First two pics are Jasons rehash of the Steadman cocktail. And a fine job it was.

[2T Institute]

Husa, thanks for the sizes, these are well documented, but really what we'd like to know "has anyone experienced the narrower cages shitting themselves when compared to the wider cages"?

Only small end failures I've seen/had have been accopmanied with large amounts of deto, big end failures have been from copper plated M cages and not enough lubrication. Used slightly narrower and slightly wider cages big and small ends with no ill effects

[WilDun]

Chokky fish to that man.
http://www.lancair.com/legacy/

I've flown one of those! ...............where?...................Ardmore... .............. on MS flight Simulator

[TZ350]

Chambers RG50 with a push and go ignition made by rewinding a race stater from a Loncin Race ignition for 12V to power the Ignitec. The Loncin rotor has a RG50 center bolted into it.



The cylinder was modified for full reeds, a boost port and Boyesen like ports that got through to the top of the B transfers.



The setup was run with two stage glass fiber reeds (Blue line) and heavier carbon fiber reeds (Red line).



Then to see if the Boyesen like ports were doing anything worth while they were blocked off (Red line). Lost a bunch of top end but picked up some useful drive coming onto the pipe.



Then the open duct between the boost port and B transfer ports was closed off (Red line).



Blue, first run, Boyesen and Boost Duct open. Red Boyesen closed. Green, Boysens blocked plus Boost and B Transfers blocked off from each other.

The next move will be to keep the opening between the Boost and B Transfers blocked off and open the Boyesen like ducts up again.

The ambition is to run an RG50 and go better than 15 rwhp with it.

The last couple of weeks has all been about proving everything one step at a time..... After 160 plus runs the 85% width exhaust port is holding up well. so getting there bit by bit and lots more things to try, like an exhaust port floor dam and a new 14K+ rpm pipe.

[husaberg]

.

Tell us about the ignition stator modifications Rob?

[F5 Dave]

That's what I like to see. Testing mods. The amount of times I've reversed things that were a cert to be better yet weren't. Sometimes for a reason but at least you know.

[TZ350]

Tell us about the ignition stator modifications Rob?

The high voltage CDI winding's on the left were removed and the that side of the stater got a second set of 12V winding's.



The Loncin hub cant be completely removed without breaking the magnets. So Chambers bored out the very center part and drilled out the rivets.



Then the RG50 hub was glued and bolted in place. The rotor winds up being clamped between the RG50 hub and the remains of the original Loncin hub. It has worked a treat so far.

I am not sure if there were any photos taken of the process but I will have a look to see if there is anything to post.

[breezy]

Chambers RG50 with a push and go ignition made by rewinding a race stater from a Loncin Race ignition for 12V to power the Ignitec. The Loncin rotor has a RG50 center bolted into it.



The cylinder was modified for full reeds, a boost port and Boyesen like ports that got through to the top of the B transfers.



The setup was run with two stage glass fiber reeds (Blue line) and heavier carbon fiber reeds (Red line).



Then to see if the Boyesen like ports were doing anything worth while they were blocked off (Red line). Lost a bunch of top end but picked up some useful drive coming onto the pipe.



Then the open duct between the boost port and B transfer ports was closed off (Red line).



Blue, first run, Boyesen and Boost Duct open. Red Boyesen closed. Green, Boysens blocked plus Boost and B Transfers blocked off from each other.

The next move will be to keep the opening between the Boost and B Transfers blocked off and open the Boyesen like ducts up again.

The ambition is to run an RG50 and go better than 15 rwhp with it.

The last couple of weeks has all been about proving everything one step at a time..... After 160 plus runs the 85% width exhaust port is holding up well. so getting there bit by bit and lots more things to try, like an exhaust port floor dam and a new 14K+ rpm pipe.

Luc Foekema ...facebook page is very good read plenty about 50cc engines.