VTEC Engagement Intake: 4400rpm, Exhaust: 5800rpm

 

not mine

 

oops i've been taking the dual stage VTEC terms all worng. no there is no dual stage VTEC engagment, there is the dual stage manifold which is what i thought yall were talking about. its not possbile for VTEC to engage after it has alredy engaged. there is the dual stage manifold which may be confising everyone. no such thing as a dual VTEC engagment on the B18C1.

 

There are different stage VTEC. For example, the J30 from a V6 Accord has a 3-stage VTEC

 

sorry. i edited it. i meant on the B18C1.

 

http://www.leecao.com/honda/vtec/3stagevtec.html

 

its obviously not a performance engine though.

 

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/

 

so many idiots! :crazyr:

 

SOHC = Intake valve lift change
DOHC = Exhaust valve lift change

what motors do both? i been outta tha loop...