Diesel Turbo PP3 & Frybrid Conversion

Discussion in 'Diesel' started by Brookster, Aug 20, 2010.

  1. Brookster

    Brookster Paid Member Paid Member

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    Hello Everyone

    Well been running the T4 Transporter on Veg Oil for 18months now, it was a Straight Veg oil mix in the tank with only a heat exchanger fitted to heat the oil up.

    I up fitted a new battery and started motor to cope the the strain of starting when i was running 100% Veg Oil.

    But now winter is coming and the price of Diesel will never go down decided that rather than mixing 50/50 Oil/Derv I would fit a twin tank system.

    The system works by having a small 20litre marine fuel tank in the boot filled with 100% Diesel and the main tank filled with 100% veg oil.

    in the engine bay are 2 x 3way 12v solenoids , when starting the engine the solenoids are pulling fuel from the 20litre tank. Once warm the solenoids are switched and the fuel is pull from the main tank 100% veg oil.


    I Post some pix tomorrow but the whole DIY Kit cost under 150 :thumbup:

    The Fuel costs are -

    Diesel 1.20 per litre
    New Veg Oil 0.70 per litre from Makro
    Waste Veg Oil 0.20 per litre from local Chinese Takeaway.

    Been running on waste and new , the waste oil is good if you get a good supply.
     
    Last edited: May 24, 2012
  2. skoda4x4 Forum Member

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    i was lookig at something similar for a pd 150 bora, would make for interesting mpg figures plus the pricing is a bonus
     
  3. Brookster

    Brookster Paid Member Paid Member

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    Last edited: Feb 28, 2012
  4. Brookster

    Brookster Paid Member Paid Member

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    Plumbing Diagram for the systems

    I fully fitted the system this morning in 2 hours, the kit work excellent and when switching from diesel to veg oil once the engine is warm the change is un-noticable.

    [​IMG]

    heat exchanger in action

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    Two different plumbing systems single diesel feed, or diesel feed and return system. i have used the system feed from the diesel tank as this is easier and the Tank is in the rear of the T4.

    [​IMG]

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    Wiring diagram , but i have switches the grounds instead of switching the 12v .

    [​IMG]

    Cheap motoring from now on and i can go back to using more WVO.
     
    Last edited: Aug 21, 2010
  5. jamesa Forum Junkie

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    Neat ... :thumbup:
     
  6. Brookster

    Brookster Paid Member Paid Member

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    Yeah 100% Veg Oil :lol:

    A full tank of Diesel in the T4 was costing over 90

    A full tank of Brand new veg oil is 56

    A full tank of Wasted veg oil which i filter myself is 20 and i can do 500miles for that, so its well worth converting. Just keep a diary in the T4 with the amounts of veg oil used and mileage etc to keep VOSA happy.

    Install Pictures

    Diesel Tank (mounted under rock n roll bed)
    [​IMG]
    [​IMG]

    Engine Bay fuel filter are all within the battery bay.
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    Heat exchanger, 2no solenoids and 2no fuel filters (factory filter and bio fuel filter)
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    Control Switch mounted under dash, i will fit two indicator lights to show which fuel mode i'm in.

    [​IMG]
     
    Last edited: Aug 21, 2010
  7. Trev16v

    Trev16v Paid Member Paid Member

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    Brilliant write-up, thanks for doing it. I have a 1.9TD T4 now which I use as a daily, so I absolutely have to do this now that I've seen this thread.

    T4 vans are bloody excellent because it's so easy to do stuff like this on them. There's just so much room.
     
  8. dUff

    dUff Administrator Admin

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    Wicked write up I have seen kits , but they were loads of money
    May well do the same to my a6 as I have been mixing it for 2 years on the tank and my car has the 5 pot van engine
     
  9. pascal77uk Paid Member Paid Member

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    Excellent.

    I run the KTC Veg oil in my 1.9 tdi 8v 110 on a 80/20 mix in summer and 50/50 in winter. Have you thought about making your own rapeseed oil yet.
     
  10. Brookster

    Brookster Paid Member Paid Member

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    Gone back to using WVO again now i have the twin tank set up, paying 20p per litre and filter it myself. :thumbup:

    just been playing with the set up and trying to figure out how long i need to purge the system, its turns out i've been purging it for too long and emptied the contents of the Diesel tank 20litres into the main tank by purging for too long on the last 5 trips.

    turns out i only need to purge for 1 min at the end of a trip.


    Turbo conversion next on my list for the T4
     
    Last edited: Sep 29, 2010
  11. Mike_H Forum Addict

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    Nice setup. Must save you a fortune if you do a lot of mileage - is that diesel tank held in place?
     
  12. Brookster

    Brookster Paid Member Paid Member

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    Yes got it strapped down :thumbup:

    did 20k miles last 12 months and its cost 800 [:D]

    i can do home to Santa Pod and back for 10 towing
     
  13. PhatVR6 Forum Junkie

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    Damn! Costs me 90 to tow my car to the pod and back :-(
     
  14. tshirt2k

    tshirt2k Forum Junkie

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    How do you filter it? just 5 micron filters? Do you heat to remove water etc.
     
  15. Mike_H Forum Addict

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    And have enough oil left to cook your dinner:lol:
     
  16. Brookster

    Brookster Paid Member Paid Member

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    50micron and then 1 micron , i need and old oil barrell so i can fit a 240v immersion heater element to heat it to 40deg c and then mix with abit of methanol.

    but at the moment its fine just by filtering. :thumbup:
     
  17. Brookster

    Brookster Paid Member Paid Member

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  18. Brookster

    Brookster Paid Member Paid Member

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    Updated install.

    At high speed i wasn't getting enough fuel flow on VWO through the standard filter, so i have by passed that and the WVO goes through the Veg oil filter, the standard fuel filter is still used and is connected to the Diesel filter for start up.

    [​IMG]

    Heat Exchanger

    [​IMG]

    Fuel feed solenoid

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    Fuel Return solenoid
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    Veg oil filter
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    New fuel pipes fitted

    [​IMG]

    Veg Oil Fuel Factory

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    Transfer pump
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    Filters

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    50micron
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    1 micron
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    [​IMG]
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    filling
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    WVO Tank (a few zingers worth of veg oil)
    [​IMG]
     
    Last edited: Oct 2, 2010
  19. danster Forum Addict

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    Does the tank have a return connection?
    I can only see one outlet, but thought the WVO would need a return from the injection pump.
     
  20. Brookster

    Brookster Paid Member Paid Member

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    doesn't have a return but you can fit one.

    if you look closer at the schematic diagram the return for the diesel is tee'd into the feed pipe after the fuel feed solenoid. :thumbup:

    [​IMG]
     

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