DUAL STAGE VTEC INFO NEEDED

integraracer95 · Post by **integraracer95** » Fri Jan 05, 2007 8:12 pm

I bought a SPOON dual stage vtec ECU for my 95 GSR and am having some problems. 1st stage is 4500rpm 2nd stage is 5700rpm. I have the 2nd stage kicking in at 5700 but not sure why it isnt at 4500, any suggestions? HELP!!!!!!!!

Post by **Spunkster** » Mon Jan 08, 2007 10:42 am

A gsr has only 2 stages of vtec. The low cam and the high cam.

Asc4130SD · Post by **Asc4130SD** » Mon Jan 08, 2007 1:41 pm

Does it only control the vtec? or does it also control the IAB? From your discription It sounds like your vtec is coming on at 5700 rpm, but not switching off till you drop below 4500 rpm. which is what there sappose to do.

markiemark · Post by **markiemark** » Wed Oct 24, 2007 10:34 am

Dual stage vtec is what it sounds, it has two vtec settings. You can typically find it on the JDM OBD2 D15b.

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.