jaydee75 said:What is the displacement of the short stroke engine?
Jaydee
Time Warp said:jaydee75 said:What is the displacement of the short stroke engine?
Jaydee
745.3 cc going by the 77 x 80 posted.
It was still a long stroke engine with a piston speed over 4000 ft/minute at the quoted 8000 rpm.
Ducati round case 750's of the same period (1971 to 1974) were 80 x 74.4 as was the 1975 750 SS Desmo square case road bike.
A case with Norton using what was available with available engine castings ?
A Norton 750 at that time with bore and stroke closer to the Ducati with a new cylinder head with wider bore spacing and cases to match might have been another story.
Dances with Shrapnel said:This question would be a good one to pose to Brian Slark.
As for the 80 hp at the crank (est. 72 RWHP) sounds reasonably in the ball park with proper pipes and tuning.
acotrel said:That 80 BHP at the crank is much the same as the H1 Kawasaki, however the torque would be different. The bike might not stall in a head wind, and actually be more rideable ?
Rohan said:acotrel said:That 80 BHP at the crank is much the same as the H1 Kawasaki, however the torque would be different. The bike might not stall in a head wind, and actually be more rideable ?
I've got an older bike thats barely got more than 10 hp, and its quite rideable.
On the road. Although it will probably never win any races.
But road riding isn't about winning anything, its about getting there and enjoying the ride...
Remember too, 10hp is theoretically enough to get you to 60 mph - as long as you haven't overdone it on the crisps.