Also, speaking with Pete Roper today, he enlightened me in a couple of areas regarding boring and stroking small blocks.
The crank will most usually crash into other metal stuff in there and it becomes impossible to control the crankcase pressure via conventional venting etc..
Just a royal PITA and you hit the limit of a whole lot of parameters.
Hear me out. Keep the same crankshaft, and head and pistons unchanged, but increase the stroke and use longer connecting rods, and taller jugs (cyls). My pea brain says to get to 950, you'd need to increase stroke/length by: (follow my ramble)
The current V85 is an oversquare motor - Bore = 84 mm (0.084 m) Stroke = 77 mm (0.077 m).
If you kept the 84mm bore, and went undersquare and used a 86mm stroke (9mm increase) by using taller Cyls and CRs, you'd be at 953cc.
The only real problem I would see with this is clearance at the case/lower cyl opening for the CR, but if youre making new CR's you can adjust for that. This is the red suspender snapping approach and only requires new 9mm longer Connecting Rods and Cyls. Heck, depending on the length of the CYL sleeve in the jug, you might be able to get away with a 9mm spacer and new CR's.
Keeping with the same insanity, increasing bore to 85mm is more involved, new pistons, remachining heads for larger jugs (maybe) but bumps displacement to 978CC.....
Both are close enough to call it a 1000 and you'd have a torquey little motor, but less potential power at the top end.
I've been round and round with Pete on this years ago, and I respect the man, but don't agree. Neither do I have the machine shop capabilities to do this. But in my mind, a 9mm (.34in) increase in stroke and cyl height isn't a bridge too far, nor is a 1mm increase in bore.
Pardon my geeking out, this is leftover slag from my time building High Powered NA VW/Porsche Type IV motors. If I had the ability and resources, I'd do it. Again, The ONLY real problem I see here is that the CR's could touch the case where the cyls insert, and properly fashioned CRs could be used to offset that potential.
I know, I know, you will say that the Guzzi Engineers would have done it if possible, but hey, they aren't even able to properly grease swing arm and steering yoke bearings.........
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ducking) and as long as I'm not trying to read and type in a forum like this, it's fine for GPS.
You can tell how motivated I am...... Let us know how this works out.