Thread: Vtec questions
View Single Post
Old Oct 24, 2007 | 09:53 AM
  #28  
markiemark's Avatar
markiemark
Junior Member
 
Joined: Oct 2007
Posts: 1
Likes: 0
Default Dual Stage Vtec
ok there is a dual stage vtec, no it's not gsr, it's OBD2 D15B, look it up, it has two vtec silonoids. From around 3000rpm up to about 6000rpm, the first VTEC actuator switch engages and the previously inactive intake valve now goes into operation. The engine now runs in 16-valve mode behaves just like any of Honda's highly spec'ed 16valve PGM-Fi engines. After 6000rpm the second VTEC actuator switch engages the wild cam/rocker arm pair for the intake valves. This switches the engine into the wild-cam mode where it goes bonkers delivering 130ps at 7000rpm. With the proper driving style, one can actually enjoy mileage as high as 16 or 18km/l in town driving while at the same time frequently indulging in VTEC-inspired sprints to overtake slower vehicles.

HERE'S THE SITE TO PROVE IT http://asia.vtec.net/article/d15b/