195LikesNovarossi engines thread
08-12-2015 | 10:05 PM
#4996
09-10-2015 | 04:35 AM
#5001
The OS has more torque and it doesn't rev as high as the Novarossi based engines.
The OS can pull a few teeth taller in terms of gearing because of the increased torque to gain the top end back, but still have a brutal bottom end and mid range.
The Novarossi most likely produces a greater peak HP at maximum revs, but the power delivery is more progressive until that point.
They're so different to drive it's hard to say which is better, they're both competitive engines.
James.
The OS can pull a few teeth taller in terms of gearing because of the increased torque to gain the top end back, but still have a brutal bottom end and mid range.
The Novarossi most likely produces a greater peak HP at maximum revs, but the power delivery is more progressive until that point.
They're so different to drive it's hard to say which is better, they're both competitive engines.
James.
09-10-2015 | 01:09 PM
#5002
Tech Elite
Joined: Mar 2005
Posts: 2,614
From: Somewhere here on Earth
09-22-2015 | 12:21 PM
#5005
I'm just asking you guys about correlation between end of rod's life and hole size. If the play is larger, then obviously there will be more stress on the rod as it moves up and down but is that the whole reason why the rod breaks?
09-22-2015 | 12:27 PM
#5006
If I install Bonito 7port sleeve into keep on crankcase, would that work? The port config is same as Keep on sleeve but 2 less ports. The main port to the rear exhaust in the Bonito sleeve is a bit smaller than Keep On's. The rest is original keep on parts. I've always been afraid of making Frankenstein motors but I figured I might as well try that combo cuz otherwise not really worth keeping them separately.
09-22-2015 | 01:05 PM
#5007
Tech Lord
Joined: Aug 2007
Posts: 14,052
From: Holland
The play as the hole in the conrod will get larger as you run the engine. That, I get it. But what does changing crankpin have to do with changing conrod directly? Don't we change the conrod because we're afraid that it might break as it wears? Not necessarily because the hole enlarges?
I'm just asking you guys about correlation between end of rod's life and hole size. If the play is larger, then obviously there will be more stress on the rod as it moves up and down but is that the whole reason why the rod breaks?
I'm just asking you guys about correlation between end of rod's life and hole size. If the play is larger, then obviously there will be more stress on the rod as it moves up and down but is that the whole reason why the rod breaks?
If I install Bonito 7port sleeve into keep on crankcase, would that work? The port config is same as Keep on sleeve but 2 less ports. The main port to the rear exhaust in the Bonito sleeve is a bit smaller than Keep On's. The rest is original keep on parts. I've always been afraid of making Frankenstein motors but I figured I might as well try that combo cuz otherwise not really worth keeping them separately.
09-23-2015 | 09:16 PM
#5009
Tech Adept
Joined: Sep 2015
Posts: 104
