Boost Gauge Vaccum Hose Route

[dronizm5]

I am installing my boost gauge and I need to know what the best place is to run the hose that goes from the boost gauge through the firewall.

 

[Darth Vader]

I'm assuming mechanical? In which case, the ONLY hole through the DS firewall and into the cabin is the one for the hood release. It's big enough to share a small vacuum tube, then you can run it around the DS edge of the engine bay, under the fender upper and T it into the line going to the BPV.

 

[jay32m]

Exactly what Darth Vader said. You might find it helpful to tape the vacuum line to something like a straightened metal hanger to help you push the line through the firewall.

 

[dronizm5]

surprisingly everything fit in that tiny hole now i just have to figure out my electrical situation because i tried to tap a fuse but it didnt work out so well i read the thread but i couldnt find the cigarette lighter fuse to tap.

 

[jay32m]

Personally I didn't want to cut or splice any of the cars electrical so I used a ADD-A-CIRCUIT fuse holder to the fuse panel under the glove box. I believe the fuse I used as the cigarette lighter fuse. The bottom pic is not mine but it is a pic of the ms3 fuse panel with someones boost gauge wired up. Hope this helps.

 

[MSP300]

Personally I didn't want to cut or splice any of the cars electrical so I used a ADD-A-CIRCUIT fuse holder to the fuse panel under the glove box. I believe the fuse I used as the cigarette lighter fuse. The bottom pic is not mine but it is a pic of the ms3 fuse panel with someones boost gauge wired up. Hope this helps.

where did u buy one this a ADD-A-CIRCUIT fuse holders?

 

[SpeedKnight]

Any autoparts store. $6.99 at Autozone. A little pricey for 3 of 'em but a breeze installing.

 

[novacircuit]

If I'm not mistaken, the most efficient place to tap is about 5 inches before the throttle body. Just my 2 cents.

 

[coyfish]

sub

 

[mazdaspeed32007]

i ran mine through the boot behind the glovebox....and the electrical was used on the dashes acc. wire.

 

[MSP300]

If I'm not mistaken, the most efficient place to tap is about 5 inches before the throttle body. Just my 2 cents.

do u have a picture of that?

 

[frankyb46]

The "Add-a-splice" is the best way to go by far.