doesnt look much [and its a few weeks old now] but this is the first day of the first test motor running
plan
was to make 1 good motor with all the test stuff going on inside it
then if it it works make 2 more for the twin engine bike. test motor is a
"modern" engine being a set of 60's cases. the real race ones will be
early 50s cases [they are essentially the same] so i drop into vintage
class for bonneville so i am at least in with a fighting chance.
doesnt look much but theres a lot of work inside to
try get this old long stroke thumper revving and performing a bit -
lightened flywheels, rover piston, changed internal oiling, single piece
pushrods, hot cam, custom cam followers, big breather, top pushrod
adjusters, lightened timing gear etc etc.... revs a LOT more freely now.
starting with a massive 22.5 BHP its a mountain to
climb, but its fun. i had it out on the road and got a gps indicated
75mph out of it [with a light tail breeze ha] so im pretty happy things
are going in the right direction. next up, big valve head and nitrous i
recon.. a panther on nitrous i dont think has been done... i guess im
just not smart enough to know its a bad idea - blind optimism has got me
this far...
- Sumo
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