I have been searching for tooling setup to skim cylinder heads on a mill. I have been told that you turn the head of the mill 1/2 deg to prevent backcut on the surface & use a large radius cutter with only a single cutting tool. But this would leave the decking surface slightly curved. Is this...
I am looking to develop a mathmatical model on shim stack layouts. Not to try and simulate the dampening curves, but to be able to compare the differences between changes.
Does anyone know of any source material (papers, books, etc) that may assist.
Regards,
MB
Trying to tune an inline 400cc 4cyl using 32.5mm Kehin CVK carbs. Tune is ok but I am constantly getting a lean spot between 12500-13500 rpm at wot. Using an AFR of 11.5:1 from 7000 to 12500 then leans drmatically to 13:1 and comes back to 12.5:1 by redline at 14500rpm. The carb is well onto the...
Has anybody had experience with designing headers with primary & secondary collectors ie. 4-2-1 layout for inline 4 cyl engines as opposed to 4-1 collectors. I have been making some headers with mixed results for some time now. The designs have been based on what I have seen at racetracks and in...
Has anyone out there seen a unit that intercepts the pickup signal before the CDI on a motorcycle and allows a small amount of retard/advance to be controlled over the entire rev range. I ask this as the class I am racing in requires the standard CDI to be in used. I made an adjustable pickup...
I am rebuilding a small 4cyl Kawasaki motorcycle engine for road racing and I am trying to track down knowledge on surface hardening of the valve seat of the valve. The valves are a two piece (bi-metallic) design with a single 45deg seat. I wish to backcut the seat however I am unsure how this...
