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Thread: Turbo mods... Stop me if you've heard this before...

  1. #1
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    Turbo mods... Stop me if you've heard this before...

    t to minimise the spool up time (for those of us that like having onboard air done the right way with a belt driven compressor) what if

    we took a bleed line from the tank (100-130psi) fitted a control valve and then drilled and tapped an outlet into the turbine housing so that it directed a jet of air along the turbine wheel angled around to drive at about the middle of the wheel...

    add a couple of sensors/switches to enable the air to be switched on when you go wide open throttle but are low on boost....
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
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    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
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  2. #2
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    Re: Turbo mods... Stop me if you've heard this before...

    I've seen it work with nitrous on petrol engines but I think the nitrous benefit outweighed any attempt to overcome lag.

  3. #3
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    what about the old Anti Lag System , squirt some fuel & compressed air into the exhaust manifold to keep the fire going.

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    Quote Originally Posted by goingbush View Post
    what about the old Anti Lag System , squirt some fuel & compressed air into the exhaust manifold to keep the fire going.
    "Afterburner standard equipment sir!"
    MY99 RR P38 HSE 4.6 (Thor) gone (to Tasmania)
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  5. #5
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    Quote Originally Posted by goingbush View Post
    what about the old Anti Lag System , squirt some fuel & compressed air into the exhaust manifold to keep the fire going.
    There have been commercial applications similar to that. I haven't saved the info, but recall seeing it not to long ago.

  6. #6
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    Dave
    Just out of interest - I run a 110-130psi switch in my air system
    The tank I use is a 22L ex direct drive compressor tank
    Its mounted under the drivers seat

    I kinda sorta tend to not like leaving it at full blow while driving around!
    Of course happy for it cycling with the hand throttle on while airing up or runnning the rattler when Im not sitting on top of it!

    But generally leave 50psi in it to pressure the water tank

    I guess I have seen some big badda booom injuries from high pressures vs human fraility

    So the I like your idea BUT would need to move my tank!

    Would it make enough difference to matter?

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  7. #7
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    wonder if this mob can do an Anti Lag fuel map for a Td5 / Puma

    Diesel Anti lag

    oh yes - they can

    http://www.gadtuning.co.uk/land-rove...der-remapping/

    Guinea Pig .....anyone ????

  8. #8
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    would the volume of air be sufficient?

    How many litres per cycle would the engine suck?
    multiply that by rpm / 4
    then how many litres of output would your system provide over the same time frame?

    Obviously you'd need to figure out litres @ x pressure, then use boyles law to see how many litres you'd have at the end pressure.

    I always thought it wouldn't work, but never did the maths.

    Let's see some number crunching, and the physicists may want to correct any of my assumptions here.

  9. #9
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    Quote Originally Posted by roverrescue View Post
    So the I like your idea BUT would need to move my tank!

    Would it make enough difference to matter?

    S
    Dunno I was doing a rebuild on a VNT for someone (sticking vanes and a holed diaphragm) when they spotted the airtank in the bull bar of the green disco and ask where it was. At that point a couple of ideas had a collision in my head got rear ended by a computer game memory and the idea formed of the wreckage.

    Quote Originally Posted by Michael2 View Post
    would the volume of air be sufficient?

    How many litres per cycle would the engine suck?
    multiply that by rpm / 4
    then how many litres of output would your system provide over the same time frame?
    You've mis-interpreted the idea its not to have the compressed air to run the engine its to have the compressed air spin up the turbine while the engine is struggling to get on boost, once the engine is on boost the exhaust gasses from the engine would run the turbinne as per normal.

    The engine would then drive the air compressor to top up the tank again for next time it was needed.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.

  10. #10
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    Dumb question: are you going to spin the inlet turbine or the exhaust turbine? A degree of charge cooling may result from dumping rapidly expanded air in the intake wheel.

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