MV Agusta Forum banner

1 - 11 of 11 Posts

·
Registered
Joined
·
32 Posts
Discussion Starter #1
Hey guys

I've been looking at the different bikes with the 3cyl and I'm curious to know what are the actual physically differences between them (other than the obvious chassis).

I.e. why does the F3 800 make more (advertised) power than the Dragster RR? Is it an ecu thing? Is there physical motor differences (more aggressive cam maybe?). I'm aware of the Euro 4 differences so not really talking about that.

Apologies if this is already discussed elsewhere!
 

·
Registered
Joined
·
571 Posts
The dragster has steel valves instead of Ti, different springs and cams as well. RR makes its extra power over the STD B3 800 engine by using 6 injectors instead of the STD 3.
 

·
Registered
Joined
·
1,164 Posts
And F rev a little higher although not much but about another 300rpm.

Dragster 125 dragster rr 140 although optimistic and 6 injectors as mentioned

F3 800 148bhp
 

·
Registered
Joined
·
147 Posts
Compression ratio is different, due to different pistons.
 

·
Registered
Joined
·
773 Posts
Compression ratio, ECU map are likely not the only reasons.

Crankshaft, Piston and associated connection are likely to be lighter on F3 and F4. With a lighter mobile equipment, the engine can reach higher RPM, but is generally having less torque at lower RPM than the engine with heavier mobile equipment.
 

·
Super Moderator
Joined
·
21,467 Posts
There are no "B" motors.....
 
1 - 11 of 11 Posts
Top