badmanners

hey i was just wondering i got a d16z6 and wanted to know if the vtec works. how can u tell if it works? thanks

zeeman

iTrader: (1)

go for a drive with the vtec solenoid plugged in and go past 6000rpms, then unplug the vtec solenoid (single wire plug) and go for another drive and go past 6000rpms. If you feel/hear a difference (meaning the car is slower) from the first time with everything plugged in, then its working, if you don't feel/hear a difference from the first time with everything plugged in, then chances are its not working. When you unplug the solenoid the CEL will come on and give you a code 21 for the vtec solenoid (not a big deal) and typically when vtec isn't working you will have a CEL on all the time, or when you try to engage vtec the CEL will come on.

Polkaroo Killa

If you hear BWAHHHHHHHHHHHH after 6k RPMS, then you have VTACK yo!

Just kidding....do what zeeman said above.

bseries_el

hahahaha yeah just wait for the bwahhhhhhh. well its more like a bwaheeeee. lol for the D's

D.T.P

6k? doesnt vtec engage at 4500-4600rpms?

badmanners

so vtec doesnt kick in at lower rpms? only 6000k?

tkjode

iTrader: (1)

Z6 should kick in at 4800RPM. Different engines have different switchovers.

Jaz169

buy a short ram intake...... then you should be able to hear the vtec kick in distinctly, thats how the d series are.

with b series u could hear it when stock.

D.T.P

Vtec will engage just before 5k rpm depending on the oil level/sensor etc. Will be around 4600-4800rpm.
I think the reason it was mentioned above to bring it past 6k is to get a better feel for the power output.
Also, make sure the engine is warmed up to operating temperature.

jdm_77

in D's u dont here vtec crack if u want to hear it upgrade to B-series dohc vtec

MyVtecGoesBWAH

haha that would have been my advice to!

Polkaroo Killa

lol nice

ol Dusty

iTrader: (2)

depending on the mods to the engine you can hear it. I have a SRI with an AEM dry flow filter on a big bore TB and a sk2 IM. OBX headers magna flow cat and sk2 cat back. I can definatly hear VTEC just fine on my d16z6.

3rdgen3

Not through your exhaust you dont...exhasut mods means diddly **** in terms of hearing VTEC. SOHC VTEC is ONLY on the Intake side.

Bullshit you don't. Maybe on a Z6...but my D16y8's VTEC is VERY noticeable..in fact a few people thought i had a dual cam in there.

And to everyone giving false information on WHEN it kicks in, just stop now. Its doesnt "kick in @ 4600-4800" rpms...it kicks in at slightly different rpms for EVERY different VTEC motor. MOST D16 vtec motors hit VTEC @ 5400rpms STOCK.

Open your ears and pay attention to your tachs people. Unless you have a VTEC controller on a chipped P28 with the vtec engagement set lower, your D16z6 or y8 will hit Vtec at around 5500rpms, end of discussion.

civicEJ1

iTrader: (2)

i disagree man ive had lots of z6's and they all kick in at 4600-4800 and for my b16 it kicks in at 5600-5800 never past 5 for a D series though...

but its true u hear the vtec more on a Y8 than a Z6

3rdgen3

lol...im telling you....vtec kicks in @ 5400rpms on many D-series....it does on my Y8 and the other EK Si's and EL's ive driven.

Maybe the factory setting on the Z6's ECU's is 4600-4800 but 100% for sure the Y8 is 5400rpms.

http://www.youtube.com/watch?v=rDtczOW1Qf0

Mine kicks in just like that one, except sounds a lot more aggressive.

3rdgen3

And here's another:
http://www.youtube.com/watch?v=mJO9T...eature=related

MyVtecGoesBWAH

mine starts at 5500rpm. never heard vtec on a d series so i wouldn't know if u can hear it or not.

3rdgen3

Watch the videos in the links above.

jamie1985

if you're driving around 4800k and all of a sudden you get whiplash from massive power boost, you definitely have V-Attack!!!