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  • Mick uploaded a new video in Porsche Appreciation
    Tomm Wells
    How cool is this...
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  • Mexi-EFI kits now ready for ordering. Still need to get them posted up on the web store but if you are interested in converting your existing N/A MEXI setup to blown then give me a shout.
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  • Haven't had a chance to do any more work on getting the engine installed but have spent a few dollars treating the bus to some new goodies.

    One of the mods that I have planned for the bus was converting the front to use the new drop spindles available for late bays. The reason for this is to...
    Haven't had a chance to do any more work on getting the engine installed but have spent a few dollars treating the bus to some new goodies.

    One of the mods that I have planned for the bus was converting the front to use the new drop spindles available for late bays. The reason for this is to improve the ride a little as lowering the front solely by beam adjusters has left the bus with a bit of a bouncy ride. The issue with this conversion is that late bays run disks with a different bolt pattern to early bays (which run drums and wide 5.) So to get the wheels to fit you need to make up an adaptor plate to convert the late bay stud pattern to early wide-5 and run the disk brake set up. Unfortunately at this stage they do not do a drum brake version and it is not possible to fit drums to the late drop spindles without a lot of modification which is not something that I want to risk with my brakes.

    I previously made up an adaptor plate (which needs machining) and purchased the drop spindles, and was looking for someone wrecking a late bay to get the rest of the parts that I needed. But after a couple of dead ends and failing at getting some sent from interstate I gave up on that idea. Somehow I recently stumbled across the fact the Rod Penrose stocks all of the necessary parts (new) for this conversion. Rods obviously had the foresight to realise that the hubs, bearings, etc are also needed so he keeps them in stock. So I've taken the plunge and ordered all of the parts required to finish the brake conversion including a new master cylinder and front brake lines.

    This now takes the list of jobs that need doing up to several hundred - lol.

    In addition to the brakes I've also pulled the trigger on a diesel space heater. Not exactly a necessity for the Australian summer but a nice bit of kit to have for those colder evenings and one to take the chill off the bus on a cold morning once I have sorted out a remote starter. I'll obviously post up about the install, as and when that happens. Next hurdle is to figure out where to install a diesel tank.
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  •   Mick reacted to this post about 4 weeks ago
    after wainting a coulple of months finally last weekend arrives new stainless steel equal length header from Vintage Speed... soon I will install it!
    Regards from Guadalajara - México! ‏ — feeling happy
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  •   Dubs by the sea reacted to this post about 1 month ago
    2 days and counting...
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  • More new parts for the EFI system have arrived. Here you can see the new case complete with locking waterproof connector. I need to redesign the ECU board a little so that it fits in the case. That's the great thing with open source design, I can take the design and modify it for my application,... More new parts for the EFI system have arrived. Here you can see the new case complete with locking waterproof connector. I need to redesign the ECU board a little so that it fits in the case. That's the great thing with open source design, I can take the design and modify it for my application, as long as it is done in accordance with the license requirements.

    The ultimate goal of this ECU build is to create an ECU that is professionally packaged, easy to install and deploy and includes the basic features needed to provide fuel and spark to one of my blown set ups. This means that the costs are minimised, which in turn means that I can pass the savings on to the end user, which opens up the possibility of using EFI to many people. Of course if people want to buy an $800 megasquirt or a $2000 Haltec they still have this option open to them.

    Feature-wise the ECU will have the following

    - Batch fire injection
    - Wasted spark ignition
    - Distributorless crank fired control
    - Boost referenced ignition mapping
    - Idle air control
    - Acceleration enrichment
    - Cold start enrichment
    - Closed loop Lambda control
    - Auto-tune capabilities

    I also received the Idle air control valve and throttle position sensor. Finding the correct components to work with both the ECU and still fit the throttle body has taken a bit of time. Standardisation of components has been an important factor as these components need to work across a range of different ECUs. They also have to be reliable and robust enough to withstand the operating environment, plus not be so obscure that they are hard to come across.

    At the moment I'm busy drafting the new ECU layout. This should hopefully be ready before Christmas.
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