HKS EVC 6 How To?

SPOHN · 08-23-2013, 06:27 PM

Quote:

Originally Posted by Cell

The picture in the manual shows the hose connected to the intake manifold to something they call the "fuel pressure regulator". It wants me to cut that hose and T it off to connect it to the EVC Stepping motor.

Are you sure it isn't the BOV?

It's because the BOV does have a port that I believe is used to connect it with the intake manifold.

That what we said earlier. Because our cars have a returnless fuel system we don't have a vacuum source for the fuel. So what you do is tap the back of the intake manifold with 1/8'' tap NPT and install a 1/8'' threaded barbed fitting NPT into. That becomes your source for the boost controller. This is what HKS doesn't show for us.

Read page 75 http://www.gtmotorsports.com/Manuals...structions.pdf

The vacuum port for the BOV go to another barbed port that needs to be tapped behind the throttle bodies on the intake manifold.

Cell · 08-23-2013, 06:31 PM

Quote:

Originally Posted by SPOHN

That what we said earlier. Because our cars have a returnless fuel system we don't have a vacuum source for the fuel. So what you do is tap the back of the intake manifold with 1/8'' tap and install a 1/8'' threaded barbed fitting into. That becomes your source for the boost controller. This is what HKS doesn't show for us.

Read page 75 http://www.gtmotorsports.com/Manuals...structions.pdf

The vacuum port for the BOV go to another barbed port that needs to be tapped behind the throttle bodies on the intake manifold.

I already have it tapped for the BP turbo kit. It will be used to connect to the BOV. Can't I use a T fitting on that hose and connect it to the stepping motor?

SPOHN · 08-23-2013, 06:36 PM

Quote:

Originally Posted by Cell

I already have it tapped for the BP turbo kit. It will be used to connect to the BOV. Can't I use T that and connect it to the stepping motor?

No. You have to add another port. The vacuum line for the BOV is strictly for the BOV and nothing else. BOV's relieve pressure only and in no way should be used for a source for boost.