Vtec Engagin

randerson165

Senior Member
On my SOHC Vtec D16Y8, when I rev my engine to about 5500rpm, the sound coming from my loud intake changes tones. Is this the Vtec kicking in and why doesn't my friends exact same car and engine do the same thing. My car seems faster than his and all I have is intake. He has header, intake, exhaust, fuel crap, cam gear, and other stuff. Why is my civic stock just as fast ?
 

posol

RETIRED
Staff member
that, or he never tuned the cam gear properly and cost him both horsepower and his chances of long engine survival
 

asmallsol

Super Moderator
or your freind does not have proper oil levels in his car along with the above fnf mods (system and rims) then his vtec is not going to engage.
 

simonc

Member
Iam right in thinking the vtec won't engage if the car is in neutral? I think the car has to be going over a certain speed, with correct oil pressure, and coolant temprature. That true??
 

randerson165

Senior Member
It is the same car as mine and he does have some 17" Chrome rims. How will rims make a difference ? How do you adjust the cam gear ? Is there anything else we can do ourselves without taking it to a shop, we don't know too much.....
 

pills_PMD

Super Moderator
lol. sell the 17" chrome that is keeping him slow. look in the article section. i wrote an article on changing your cam gear timing for b series engines and it all applies to d series as well.
 

posol

RETIRED
Staff member
Originally posted by simonc@Dec 27 2002, 11:35 AM
Iam right in thinking the vtec won't engage if the car is in neutral? I think the car has to be going over a certain speed, with correct oil pressure, and coolant temprature. That true??

correct
 
Top