Some progress made - the blower has been rebuilt with a new rotor pack and bearings, courtesy of MagnaCharger.... the housing is original and they claim it's been bench tested, so perhaps the case bore-to-rotor tip clearance isn't as critical to performance as rotor tip-to-rotor tip clearance..... we'll see when it comes on line:


The block and crankshaft are at the machine shop for crank journal polishing and cylinder re-honing. I don't know if a re-hone will take out a couple of deep scratches I found in #1 cylinder.... or if it'll have to be re-bored to .035" over and new pistons bought. If it requires new pistons, I might be better off prepping another block - probably 6 of one, 1/2 dozen of the other. I'll know tomorrow if the re-hone will work.

Meanwhile, I've been frying my brain with some cam-think and need to call a grinder for advice on how to get the cylinder pressure up without penalizing exhaust gas evacuation.... need to figure out whether to play with the Diamante cams, reinstall the truck cams, regrind a Diamante set with a blower lobe profile and install them 7* advanced... or cringe and buy a custom grind.

Frank