Hi Net As part of my condition inspection, I tested my compressions on my type 4, and not to my surprise, three of my cylinders are not leaking. two have exhaust and one has blow by. The weakest cylinder is down to 68 present. I have decided to open my case after almost 20 years. I plan to have the crank polished and or ground and add new bearings. I plan to change the cam to a new one which will reach peek torque at 3600 RPM. My local expert tells me that it will be high lift and short duration. The jury is still out on which cylinders I will install, I am leaning toward either 103 or 105 mm. I have also started the process of having some parts machined so that I can turbo charge the engine. My ultimate goal is to achieve or exceed a minimum of 500 FPM climb rate at a gross weight of 1050 which is my certified gross. I will keep the net posted as to progress or strange findings. Any comments or thoughts is as always appreciated. If anyone has any sources for cylinders at reasonable prices, let me know.
Orma L. Robbins Southfield MI 19 Years flying KR-2 N110LR http://www.aviation-mechanics.com
