SideHill2x
Guest
I have 2 6600 sidehill machines. One is a gear drive, 1975 model with the factory 404 engine with a rotary pump(non turbo). The other machine is a 1978 sidehill with the 404 turbo engine with an inline pump and a hydro transmission. The engines are set from the factory to run at different top end rpm's. The natural aspired engine is set for 2500 top end rpm and the turbo engine is set for 2200. The separators run the same and the pulley on the powershaft is a different diameter to allow the machines themselves to run at the correct speed. If you go from a turbo to a non turbo engine are you going to change top end rpmIJ I would think the 404 without the turbo set for 2200 top end will be 'doggy' under load and the machine will not run at full speed unless you change the pulley on the powershaft under the seat. I use my 404 natural aspired engine primarily on a 6 row 643 corn head with little difficulty. You will have some need to run a little slower under a heavy load of high yielding high moisture corn. I use the hydro, turbo machine for my cutting platform (216 head)in beans and small grain. This year with high yielding corn I have plugged both machines under the concave with too much corn to get away and the shoe supply augers can't keep up and the slip clutch goes and then the walker slip clutch goes as well. So for me the extra hp did not allow me to run any faster than the non turbo engine. For me the 404 natural aspired engine is not a significnat factor in reduced productivity in corn. I am pleased with both machines and they give me good service in season with little downtime in the field and I can always switch machines if necesary to keep going with one crop or the other. I have not yet found a way to sit in 2 combines at one time. 