Jump to content
SingaporeBikes.com Telegram Now LIVE! Join NOW for the Last Reviews, News, Promotions & Offers in Singapore! ×
  • Join SingaporeBikes.com today! Where Singapore Bikers Unite!

    Thank you for visiting SingaporeBikes.com - the largest website in Singapore dedicated to all things related to motorcycles and biking in general.

    Join us today as a member to enjoy all the features of the website for FREE such as:

    Registering is free and takes less than 30 seconds! Join us today to share information, discuss about your modifications, and ask questions about your bike in general.

    Thank you for being a part of SingaporeBikes.com!

Recommended Posts

  • Replies 11
  • Created
  • Last Reply

Top Posters In This Topic

Posted

For those who are considering between SPEC 2 and SPEC 3, this is taken exactly from Honda's website:

 

Points of HYPER VTEC development

HYPER VTEC is a valve pausing system, further advancing VTEC technology through hydraulic control unique of Honda, in pursuit of the improvement in the suction, exhaust efficiency and combustion efficiency of 4-cycle engines. A direct-actuated type is adopted, in which cams will directly push up the valves through lifters. The system enabled to switch over the number of valve operations per cylinder between low and medium speed revolution range and high speed revolution range, and by setting cam profiles to give optimum valve timing to the valves on working side and on paused side, power output characteristics were demonstrated in the low and medium speed revolution range and in the high speed revolution range for further improvement in fuel consumption rate.

 

Further Evolution to HYPER VTEC SPEC II and III

In January 2002, HYPER VTEC evolved into Spec II aiming at letting everybody actually feel the power drive over the entire ranges. As one of the aims of Spec II development, it can be pointed out that the CB400 SUPER FOUR, the model on which the system was installed, is the one having a wide user class. There were voices to point out that beginners, in particular, were unable to fully utilize the four-valve stage from above the revolution range of 6,700. The development team then developed HYPER VTEC SPEC II anew to enable many more users to enjoy the four-valve stage of HYPER VTEC.

SPEC II achieved increasing torque in the middle speed range and smoother power by refining the valve timing, inteke and exhaust systems, and the valve switchover timing revolution from two to four valves was changed from 6,750rpm to 6,300rpm. It has resulted in powerful and sporty engines, enabling one to actually feel VTEC in all driving ranges from low to top. In December 2003, SPEC III was introduced. The switchover timing for a 6 speed only was changed from 6,300rpm to 6,750rpm to improve fuel consumption in cruising over high speed roads without spoiling the cheerful drive.

 

http://world.honda.com/motorcycle-technology/vtec/p2.html

Posted

wah really looks nice and well maintained. ups for u!

My Ride History:

1997 - 2003 : Yamaha SRE 100 a.k.a My First Love

2001 - 2004 : Yamaha Sports Y110SS a.k.a My First 2-Stroke Bike

2005 - 2012 : Honda Phantom TA200 a.k.a My First Cruiser Bike

2012 - 2012 : Honda CB400 Spec II a.k.a My First VTEC Love

2013 - NOW : Yamaha YZF-R1 a.k.a My First SuperBike :cool:

Posted

This guy is my working colleague. I park my bike beside his everyday. He religiously covers his bike with his expensive bike cover everyday, that I can vouch for. Its no wonder that his bike is in such pristine condition. Engine quality is also top notch. Considering its age, its really worth the investment. I'm looking for a smaller bike to ride everyday, if not I'll sure take over from him.

 

Ups for him.

Posted
This guy is my working colleague. I park my bike beside his everyday. He religiously covers his bike with his expensive bike cover everyday, that I can vouch for. Its no wonder that his bike is in such pristine condition. Engine quality is also top notch. Considering its age, its really worth the investment. I'm looking for a smaller bike to ride everyday, if not I'll sure take over from him.

 

Ups for him.

 

Thank you for your kind words!

 

Kudos to the next owner who takes over my bike.

Posted
Damn steal leh for such a well maintained bike. Upss!

 

Thank you! You're right bro, bike is now under reserve by a nice guy whom fell in love with it at first sight.

Guest
This topic is now closed to further replies.

  • DAIS_ShellBAU2024_Motorcycle_SingaporeBikesBanner_300x250.jpg

     
×
×
  • Create New...