 |
| . |
|
Newly Designed Compact High
Performance Engine
The new DF200 and DF225 both utilize a newly designed
3.6-liter DOHC, 24-valve V6 engine that produces 200PS
(147kW) and 225PS (165kW) in their respective DF200 and
DF225 configurations. At 3614cm3 this is the largest displacement
in the industry and for Suzuki to date, but an innovative
design makes them the lightest and most compact outboards
in their class. Key features shared by both of these powerful
four-strokes include Suzuki’s digital sequential electronic fuel
injection controlled by a 32-bit onboard computer and
Suzuki’s offset driveshaft, which allows for the use of a larger
prop. In addition to that, the DF225 utilizes multi-stage induction
to provide low-end torque.
The Ultimate in Performance
Multi-Stage Induction (DF225)
The DF225 utilizes multi-stage induction to enhance engine performance
by changing the length of intake manifold pipes according to engine speed.
The system utilizes two intake manifold pipes per cylinder, one operating
at low engine speed and another operating at high. When the engine is operating
at lower rpm, air enters the combustion chamber through the longer, curved
manifold pipe.
The length of the pipe is designed for entering the most suitable
volume of fresh air into the chamber to improve combustion and boost low-end
torque.
As rpm pass a preset threshold, the direct intake pipe opens up
letting air enter directly into the combustion chamber. Short, straight
and lacking resistance it gets a greater volume of air into the chamber,
increasing the engine’s ability to breathe at high rpm, thus improving
high speed power output.
The engine cover is also designed with a large air intake, which
extends from the back of the |
|
|
. |
|
|
