Mechanical boost gauge install using green dashed vacuum line
This install project will go over the simplest way to install an Autometer mechanical vac/boost gauge using the famous green dashed vacuum hose found on the intake behind the throttle body. It is a good idea to take a good look at the green dashed line before you get started as you will see that it will be a tight working space and it will give you an idea of what to expect.
Become familiar with the equipment Autometer has supplied with the gauge.
You should have two 1/8" adapters, both with a ferule and locknut. Warning: do not tighten the locknut over the ferule until you are sure that you want a permanent connection. Once the ferule is crushed, it cannot be reused. One 1/8" adapter will attach to one end of the nylon tubing under the hood and the other 1/8" adapter will hookup to the back of the gauge itself. Autometer supplies the 1/8" to 1/4" adapter if you choose to make use of it. In this install it was not used. Also take note that the nylon tubing is somewhat fragile. It breaks rather easily and kinks will be permanent.
Additional things you will need to complete the install. For this install I chose to use a 1/8" female T and two 1/8" male flared hose adapters. It is a good idea to pick up a pair of hose clamps of some kind. I chose to use the screw type clamps over the zip ties which went unused. Simply screw the two male adapters into the sides of the female T and then screw the 1/8" adapter with the male end into the top of the T. You will also need to make a trip to the local junk yard and score a couple extra green dashed hoses. You only need one extra but they are cheap and it's good to have more in case you mess up.
Keep in mind that there are other ways to construct a T setup with different materials, a plastic T for example. The only problem you will have is getting a solid connection with the nylon tubing. For this reason I chose to make use of the brass adapter and ferule that Autometer supplied. It works well.
Find a way to run the nylon tubing through the firewall.
This can be distressing. I found a nice hole by removing the black plastic cover piece under the dash on the driver's side. This piece is cosmetic and may be missing from your car. I then stuck my head underneath and looked up to see if any sunlight could be seen through the firewall. I found a hole behind the speedometer and gauge cluster close to the fender. This hole can be found next to the brake booster under the hood. Other holes can be used or in extreme cases you can drill a new hole. The hole I used was convenient and dropped the nylon tubing right above the pedals.
For this install I left the original green dashed hose where it was attached to the intake and disconnected it from the metal tube. I then added one end of the T setup to the original hose and attached the additional green dashed hose to the other side of the T and then to the metal tube to make the line complete. Thus you will have an elongated green dashed vacuum line with the T setup in the middle.
As I mentioned before the area is tight especially if you have a strut tower bar in the way. I found that to keep the line as short as possible I had to clip the ends off of the two (blue) 1/8" flared male adapters attached to the female T. I then attached the hoses as in the previous step and secured them with the screw type hose clamps. When the T setup is fully connected you can simply slide the lock nut and ferule over the end of the nylon tube and then place the end of the nylon tube into the 1/8" adapter. Screw it nice and tight and crush the ferule to make a permanent connection. Here is a pic of how mine looks.
Once everything is connected under the hood, make sure that the nylon tubing running on the interior of your car is nicely tucked away and not subject to moving parts like your clutch peddle. Attach the female 1/8" adapter to the back of the gauge. Slide the locknut and ferule over the tubing and then secure it to the adapter like before crushing the ferule in place.
Return gauge to it's mounting position and start the car. At idle you should get a vacuum reading (on vac/boost gauge). Check connections under the hood one last time and listen for any leaking air. If everything seems normal you should be all set.
ok well i jus got me a boost guage and so what u do is find the green dashed hose which is connected to the throttle body or near it and i think i found it its about 4 inches long correct then when u find that hose u T it off and connect the hose for the guage correct im jus trying to follow along correct me if im wrong thanks
I'm trying to do this right now, and I'm just wishing that your pictures worked
for how-to's, I think the site should host the pictures, so that way when people go to look at it later, they haven't disappeared...
On the back of the intake, right beside the throttle body, there are some vacume lines there. There will be one there with green "dotted lines". If you can't see them, clean the lines with marm soapy water. DON'T USE A SOLVENT OR HARSH CLEANER, or you'll wipe them off!!!! You should be able to follow the instructions from there. Its really not too hard.
Team DISPLACEMENT REPLACEMENT 1993 B2200 F2T SDS t3t4 "beater". 1993 B2200 Stock, mint, waiting for more power. 1989 MX6 Turbo It will be alive again next year, and runnin 12's
The 2 hoses coming out if the throttle body right together are both green dashed.
By the way, I also recommend attaching your wastegate/boost controller there too, INSTEAD of at the turbo outlet to prevent boost creep, pressure loss, and you haave better control there.
Zombie chip, Pace stetter short shiffter, 3" down pipe, High flow cat, 3" cat back, magna flow muffler, Turbo X's manual boost controler, MSD blaster 2 coil, MSD Tach adapter, MSD ignition box, Exedy clutch, Type R turbo timer, front and rear upper strut
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I found that to keep the line as short as possible I had to clip the ends off of the two (blue) 1/8" flared male adapters attached to the female T. I then attached the hoses as in the previous step and secured them with the screw type hose clamps. When the T setup is fully connected you can simply slide the lock nut and ferule over the end of the nylon tube and then place the end of the nylon tube into the 1/8" adapter. Screw it nice and tight and crush the ferule to make a permanent connection. Here is a pic of how mine looks.
Sleeper
