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Thread: Boost Controllers

  1. #1
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    Boost Controllers

    Hi all,
    just wondering if any one has used the diesel specific electric boost controller from GFB . It's an Aussie company that has been around for a while now and I have had great experiences with their controllers on turbo petrol cars and made my Subaru XT Forester very responsive but can't find anything on the turbo diesel installs for Land rovers.

    I have a Disco 2 with the TD5 and this D-force boost controller sounds the goods . Has digital screen with boost output , optional EGT input and sensor . Can ramp up boost faster and hold it longer . Raise or lower boost levels and put in fail safes with various inputs to lower boost if an over temp ect is detected. Can even save modes for different driving conditions with boost level to suit.

    Any one used one on the TD5 ?
    Electronic Boost Controllers : D-Force Electronic Boost Controller with EGT Sensor
    Last edited by Keppmeister; 5th April 2017 at 10:41 AM. Reason: Add link

  2. #2
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    No, but interested in how it ramps up boost faster....

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive

  3. #3
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    Quote Originally Posted by steveG View Post
    No, but interested in how it ramps up boost faster....

    Steve
    All i can think it does is controls the vanes an a vnt turbo that is ecu controlled

  4. #4
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    Quote Originally Posted by Vern View Post
    All i can think it does is controls the vanes an a vnt turbo that is ecu controlled
    I was thinking along those lines, but the one in the link is specifically for non-VNT turbos.

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive

  5. #5
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    Quote Originally Posted by steveG View Post
    I was thinking along those lines, but the one in the link is specifically for non-VNT turbos.

    Steve
    So it controls the wastegate or fuel??

  6. #6
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    Just wastegate by the looks. Hence my question on how it builds boost faster

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive

  7. #7
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    Releases boost quicker is about it

  8. #8
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    I guess it stops the waste gate creeping open as the boost starts coming on by isolating the supply . The duty solenoid is able to regulate from there and bleed boost pressure off to intake side of the turbo as needed to maintain pressure selected at a very rapid rate if needed . The EGT function incorporated seems cool. Beats having to buy an extra gauge and plenty of other features

  9. #9
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    I've been looking at the GFB Boost controller for a while now too for my 300tdi. From what I gather you do a few power/load/full rev range runs and it "learns" what your standard boost curve is across multiple gears. It then gives you parameters that you can alter to bring the boost on earlier, increase the max boost and hold it for longer.

    Unlike a fixed boost controller - like a Dawes valve - it doesn't just hit the set PSI, open the waste-gate and vent the excess. It's meant to be much more intuitive than that. And the instructions specifically mention that it is not intended to control the vanes on a VGT.

    There are plenty of You-Tube videos including one by Mighty Car Mods which feature the GFB Boost Controller but on turbo petrol engines.

    https://www.google.com.au/url?sa=t&r...51426398,d.dGc

    While not particularly useful for our old school mechanical injection turbo diesels it is interesting to see how the on-board computer (ECU) cuts the ignition and does other things to protect from over-boost events. So there may be limits that you can go to in a TD5 for example.

  10. #10
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    Yeah true , the ecu will limit max boost with fuel cut unless you have a chip or flashed Ecu . But looks like an easy way to make adjustments to boost and monitor exhaust gas temps and boost all in one unit . If only It did oil pressure too.

    The Discovery 2 TD5 looks like it has a standard basic boost control valve plumbed in. I wonder if I will get engine codes if it is bypassed for the aftermarket unit to work as it will have to take its place ?

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