Andy,

When I first changed from gas/EI to gas/glow I had to richen the low and high speed needles on both the Stihl and the Shindawa about 1/2 turn. Adding the gaskets to the cylinder base of the Stihl made very little difference in the carb needle settings. Each of the different fuel mixes that I tried required some minor tweaking, but in every case it was less than 1/8 of a turn.

As far as different glow plugs, I have tried OS-F, Hobby People's big bore, OS-8, OS-3, Fox Miracle Plug and some old Mc Coy plugs. There were some differences, but nothing dramatic.

Early in the game, I modified an old Zama Carb to be able to run straight methanol. Using methanol with Klotz @ 36:1 made little difference in the mid range vibration level. Power was up quite a bit in that it was turning a 18 X 8 around 8800.

Next week after I make it through the round of parties,family gatherings and various other pre holiday activities, I am going to raise the deck 45 thou as Av8tor suggested and see what happens.

One thought though, I am trying to set up an engine for a large (142" WS) camera platform which requires a pusher. Most of the tests I have been running have been with the engine turning clockwise. I elected to go this way because the selection of pusher props is very slim. Maybe I have overlooked something, but I can't see how the rotation direction would have any bearing on the vibration. I really wanted to use gas/glow to avoid any interference with the flight controls or the camera-electronic equipment which the plane will carry.

Right now I have substituted a tractor engine module(ST-3000 on EI) for the camera/electronics module just to test out the flight charateristics.