Going to be installing a boost gauge into my XJR and was wondering where the best place is to tap for the vac line? On a few of my older turbo cars, I ran directly off of the intake manifold or fuel pressure solenoid, where available. Not 100% sure where I should tap on this vehicle though.

You may want to ask Waterdragon, he's done some attachments and mods. Perceptively I agree with the takeoff from the intake, but I'd want to check with someone who's done it.

I would like to know where you will mount the vac gauge. Pics would be great!

I already made my pod and everything, just waiting on the wiring end until i figure out where to tap the line.

But I modified my drivers side defrost vent to hold the boost gauge and it looks fairly stock after I painted it.

Here's a link to one of Waterdragon's threads, he has a new car, but posted some of his old stuff....https://www.jaguarforums.com/forum/x...ue-vdp-162181/

This thread should help you if you haven't found out already Specifically post 4+5.
https://www.jaguarforums.com/forum/x...install-70090/

Completed the install of the boost gauge. There is a PERFECT spot to tap the vac line. It was mentioned in a previous thread that there is a vac line coming off of the "V8 cover" and it is right there on the passengers side. I traced that line and it actually has a T fitting on it. That T fitting goes to the FPR and then the other side actually has a vac cap on it. I removed the cap and put the tubing that came with the boost gauge there. The rest was a matter of routing the line, all the wiring to the gauge and finding a 12v key on source.

Are we talking about left hand or right hand drive cars? I can't find a single vacuum like on my U.S. spec passenger side where everyone is talking about.


NVM, I found it 😌