MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: GTI 500 on October 02, 2025, 10:28:02 pm

Title: Fitting mechanical boost gauge.
Post by: GTI 500 on October 02, 2025, 10:28:02 pm

Looking to fit a mechanical boost gauge,
Has anyone fitted one & is there a specific place on the manifold to take a feed from?

Title: Re: Fitting mechanical boost gauge.
Post by: GVK on October 02, 2025, 10:32:25 pm

Need a boost tap from GFB that fits on the manifold where the PCV upper hose goes onto the manifold.

Not cheap, but TFSI do not have any vac take offs.

https://www.demon-tweeks.com/gfb-boost-tap-vag-mk5-mk6-2-0-tfsi-gfb5800/?gclsrc=aw.ds&gad_source=1&gad_campaignid=22661878256&gclid=CjwKCAjwxfjGBhAUEiwAKWPwDgHrtzOGjt1CMZ38YyWCGkucjhw6z7M6sMA3aJ1Q80ych05EsC0nbhoCd4IQAvD_BwE

Title: Re: Fitting mechanical boost gauge.
Post by: GVK on October 02, 2025, 10:42:48 pm

(https://i.postimg.cc/C5mgDFW1/boost1.jpg) (https://postimg.cc/wRyZYdx8)

That was mine in my old Edition 30 (Newsouth gauge) the vent mount was from eBay.

Don't have any pics of the boost tap fitted but it's self explanatory when it's in front of you.

I removed battery and put the hose through the bulkhead grommet thats visible.

Wired up the illuination onto an ignition live on the inside fusebox on the end of the dash.