i just bought a boost gauge for my ra and im gonna be installing it tomorrow hopefully but i got a question i looked at the firewall and i didnt see any holes that i can use to bring the vacuum line in the engine bay is there one or is there another way to do this i ve never done it before and i dont really wanna drill a hole in my firewall any help would be appreciated thanks in advance

 

you can run the boost line right behind the glovebox there is a hole right behind it. There is also a write up on this is one of the forms cant remember what one

 

the write up was for the evo that has a gromet we dont.

mine is ran through the door, semi ghetto but clean and safe.

All i had to do was drill a small hole in the weather stripping and the body panel it attaches too and ran it through there and up the door into the fender.

 

Yet another handy way; I did this with my AFR for the positive line from the battery:
In the drivers wheel fender wall, there are 3 or 4 plastic clip/screws.
Take them out so you can open the fender wall, then you will see a grommet to get inside of your side skirt.
Open the driver door, and remove the plastic piece covering the fuel door latch.
You will see a second grommet giving you access from the inside to the side skirt.
Cut a hole in both grommets and run your line through here.
Bring it up behind the steering column and route to placement of choice.

I like this super clean and no wires/ hosing visible.
If you want I can take a few pics tonite to show you what I mean
-Steve-

 

if you could take a few pics for me thatd be great thanks for the help everyone but it sounds like your ways the best/cleanest way to do it

 

I also did mine this way. I bought an AEM Analog Boost Gauge and the vacuum line they provided was not long enough. I ended up going to a local auto parts store and bought 6 feet of fuel line. This worked great and was a very clean install! This thread should help you out: https://www.evolutionm.net/forums/ev...lean-hell.html

 

Yep thats the one, thanks!

 

thanks for the help guys

 

hi have you installed your boost gauge already? what brand did you get? i've been thinking getting a boost gauge myself i know Defi makes a quality gauges...

 

im shocked you dont have a boost gauge already with all the mods you have. i just went with a semi cheap gauge from glowshift, ive had it for a while and never had a problem with it at all. just didnt seem worth it to me to spend $200 on a gauge that does the same as others...

 

i finally got mine installed last night i went with a turbosmart -30--30psi heres the link for it
http://www.maperformance.com/turbosm...0101-2023.html

 

That's weird, because I did exactly what Gman stated. There is in fact a rubber grommet behind the glove box, and I used it to run my vacuum line.

 

I ran mine under the driver floor through, the fender up the colum

 

Is this English???

 

+1 this is what I did...no drilling through the firewall