Member Since: 21 Oct 2016
Location: kent
Posts: 14184
Turbo boost gauge
Apologises as always for the daft questions
It’s just I’ve never seen a turbo boost gauge fitted onto the TDV6 , as I thought then if the actuator arm started to stick it would therefore show the boost pressure reduction giving an early indication of the vanes not opening fully
Or isn’t it that simple due to the fact it’s not a vacuum actuator type where I guess u would simply cut an adaptor in-line of the boost hose, but as it’s electronic not as easy or simply not possible
Once again sorry for the daft question , was just curious that was all and just like to learn more , massive thanks , more importantly hope everyone is keeping safe and well
4th Feb 2022 7:43 am
syncmaster710n14
Member Since: 30 Jan 2022
Location: Hinckley
Posts: 48
I think you’re on the wrong forum for boost gauges, I would suggest moving to the Subaru Owners Club
But on a serious note I can't see why not, there may even already be a boost sensor you could measure a signal from.
4th Feb 2022 8:13 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
It would be quite easy to fit one by tappimg into the throttle body but as its a variable vane turbo the values could be quite low at times and i dont know what use the information would be.
For diagnostic purposes you could just look at the MAP sensor valuesAndrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
4th Feb 2022 8:39 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14184
Many thanks and extremely grateful u taking the time to explain things , it was just out of curiosity and indeed still got a lot to learn
Picture below, Subaru eat ur heart out
4th Feb 2022 8:48 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10766
I think you should give it ago Gary.
As diesels don’t have throttles, vacuum isn’t registered on the gauge.
But we need answers. And you are the man to experiment.
The fact it’s VVT doesn’t come into in Gary.
Connect it to the inlet manifold somewhere.
Jaguars must have a connection point somewhere for the extra valves.
Or drill a hole in the EGR blank ?
4th Feb 2022 12:04 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Tbh bit pointless really for everyday use, ok for diagnostics, got one in my 90 and er I have not looked at the gauge for an eon!
Often wondered what the boost difference and EGT difference is between std and chipped cars, now that would be interesting.
4th Feb 2022 5:49 pm
G7jtk
Member Since: 03 Jun 2014
Location: Prudhoe
Posts: 866
The car going into limp mode is the indicator of the turbo actuator sticking
4th Feb 2022 6:59 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14184
Pete K wrote:
I think you should give it ago Gary.
As diesels don’t have throttles, vacuum isn’t registered on the gauge.
But we need answers. And you are the man to experiment.
The fact it’s VVT doesn’t come into in Gary.
Connect it to the inlet manifold somewhere.
Jaguars must have a connection point somewhere for the extra valves.
Or drill a hole in the EGR blank ?
Hi Pete
Many thks and indeed would be an interesting experiment , don’t mind being the Guinea pig, lol
Will of course let u know if I get anywhere with it
Many thks as always
5th Feb 2022 6:38 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14184
lynalldiscovery wrote:
Tbh bit pointless really for everyday use, ok for diagnostics, got one in my 90 and er I have not looked at the gauge for an eon!
Often wondered what the boost difference and EGT difference is between std and chipped cars, now that would be interesting.
Seen a few chipped 90 and blimey they shift , alas don’t know how much extra boost is added when re mapped
5th Feb 2022 6:41 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14184
G7jtk wrote:
The car going into limp mode is the indicator of the turbo actuator sticking
Pretty sure mine was stuck again , think it was around 4 x years since I last freed it off, will be interesting to see what results I get after I sort out all the air and intercooler leaks
5th Feb 2022 6:42 am
Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1822
and fix the vibration problem
15th Feb 2022 5:13 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14184
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