About Vtec...

Ah feng · Post by **Ah feng** » Wed Jan 13, 2010 7:06 pm

So is there any 'VTEC' in DC5?

win · Post by **win** » Thu Jan 14, 2010 1:31 am

There's a vtec solenoid sensor for ivtec/vtec models..so just have to tap a sensor to it to know when ur vtec is activated

i think there're also some gadgets to show ur vtec opens!

navi76 · Post by **navi76** » Fri Jan 15, 2010 5:05 am

hey bros.. just to clarify.. sorry i didnt state my car model earlier. its a honda stepwagon 2005 model. i believe its a K20A engine and its i-vtec. everything is stock except for 17" heavy rims, voltage stabilizer, capacitor, and ETC added onto the car. still trying to figure out whether vtec kick in at 3500 rpm or later.. sometimes i feel like its kicking in at that rpm lor.. but sometimes its at 5000 rpm.. funny right?!! haha.. well anyway, everytime i try.. my fuel comsumption goes down. so now never try already.. must save money lah, cannot anyhow step on the acc. hahaha...

must get my hands on those gadgets to show the vtec when it opens..

perhaps just to have a piece of mind. haha..

Azlielx · Post by **Azlielx** » Sun Jan 17, 2010 1:19 pm

Installing of Throttle controller dosen't change the engagement point of VTEC. It only allows the throttle to "open faster" i.e., lets the butterfly open at 100% when usually the pressure lets it open, say, 50% when set to sports mde and vice versa when at economy mode.

Since ur ride is a stpwgn and it's employing auto trans, what I'm guessing is the shift shock that u feel when ya step hard and the engine tries to keep up as trans lets the RPMs spool up first and the engine tries to match the speed. Try it on a Nissan Sunny with CVT with RON 95 fuel and the feeling should be the same.

For R engines, the wild cams engage at, think 5,800 RPM and only with new maps then can shift it higher or lower. The sound and feeling is totally different. Kinda like a high pitched whine.

Lastly, if I'm not wrong, although ur car is also a K20A, it should be giving abt 160PS (not sure and lazy to check), its different from Rs which has both intake and exhaust cams since its designed for economy instead of power. Any info here wrong dun flame me.. it's what I think I know only. Do educate me if I'm wrong