The build started the day I got home from a semester away. I pulled some parts out of storage and let them sit and equalize in temp before continuing. The crankshaft I'm using is one of three 40mm crankshafts I have at my disposal. Right now it looks to be the best candidate for this build.
My measuring methodology is rather ritualistic. I measure each feature a minimum of 9 times, three each in three directions. All of my instruments read to 1 micron ( 0.001mm ). All three measurements in one direction must come out within a micron of eachother. If they do not I keep measuring until they do. I really wish I had a CMM for this. It'd be more accurate and a hell of a lot faster.
This info goes into a spreadsheet. If Toyota specifies a tolerance this autopopulates. If there's a corresponding size designation this autopopulates. When I have mating features done it will pick bearing sizes and give me clearances. I can shuffle bearings around to get more precise clearances. Once I know my sizes I order them up from Toyota, then measure the actual bearings that come in, shuffle them around, and do a final install and plastigauge.
Here is Jeff's wicked-awesome engine blueprinting spreadsheet
These are Molnar Technologies 40/20 rods I'd put together a while ago. These will allow me to pair that 40mm crank with OEM 81.5mm AE111 pistons. According to this box these weigh in at 419.4 grams. I'll be throwing them up on the balance soon, hopefully. Right now my 0.1g scale is AWOL. I must've left it in the FSAE shop at school. The connecting rods had been sitting in the office for a few months, they shoul be the right temp, so I started to work on them first. I measure each big end a minimum of 9 times: 3 in each of 3 directions. This all goes into that spreadsheet which calculates the average and runout. These rods were all fairly good. I have them labeled by letters, as I haven't yet weighed them to decide what cylinder they're going in.
The next day I started into the crankshaft. I measure each crankpin and main a minimum of 9 times.
I'd had it polished locally, and they took off a little more material than I'd have liked. Everything is just bearly under minimum spec. Luckily my rods are on the bottom end of Toyota's specs, so my rod bearing clearances are fine. Will have to wait on the mains.