Diesel Boost Gauge

**Zeb** · 17-05-2009,11:42 PM

Hi guys,

I was thinking of ordering up a diesel boost gauge, but want ur advice.
Do you guys recommand any company that specialise in Boost Gauges?
Is it worth it?

Cheers!!!

**jwhat** · 18-05-2009,12:24 AM

I'd lwas thinking of a boost gauge too, I'd prefere one in the center vent http://www.awe-tuning.com/pages/shar...b7a4boostgauge but Diesels would need a different gauge but I can't remember why at the moment!

**adamss24** · 18-05-2009,07:02 AM

Diesels need a boost gauge wich does not show negative vacuum and wont go over 3 bars as most turbochargers wont peak more than 2 bars and they are regulated by the ECU at roughly 1.2-1.5 bar. A petrol designed one works just fine though... Another gauge to consider is an exhaust gas temperature one if you are running a highly tunned engine as it could save your turbo.

**Zeb** · 18-05-2009,11:35 AM

Originally Posted by adamss24

Diesels need a boost gauge wich does not show negative vacuum and wont go over 3 bars as most turbochargers wont peak more than 2 bars and they are regulated by the ECU at roughly 1.2-1.5 bar. A petrol designed one works just fine though... Another gauge to consider is an exhaust gas temperature one if you are running a highly tunned engine as it could save your turbo.

Ah, okay.

Can you point me to the right direction, as to where can I purchase one.

**NZT4** · 10-06-2009,05:00 AM

can anyone tell me if you can get a vacuum/boost gauge to work on a diesel? i have just fitted a vdo vac/boost gauge and tee-ed it up to the pipe that comes off the turbo and goes to the pressure sensor. as expected the gauge only reads positive pressure. is there a place to get vacuum pressure as well?
cheers

steve

paul20v · 10-06-2009,09:32 PM

Diesels dont have manifold vaccum thats why they have vac pumps for servos etc.
vac on petrols is caused by the throttle flap closing and the cylinders still drawing air out of the manifold.