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Last Post 03 Jun 2016 03:58 PM by  Reanimotion
Welcome
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Reanimotion
System Designer
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Basic Member
Posts:124


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14 Apr 2015 10:57 AM
    Hi everyone!
    I'm Steve from Reanimotion, the creator of FrankenCIS.

    FrankenCIS began as idea some time ago and turned into a skunk-works project mid last year. From the beginning we assumed only a few hard-core enthusiasts would be interested, but as the project progressed it became apparent we had tapped into a large group of people who, like me, just didn't see the value in replacing CIS with EFI if it could be properly controlled.

    The basic premise was to use an existing and fully featured traditional EFI controller that could be modified to interface with all versions of K-Jetronic / CIS. Thus keeping CIS in place and adding all the fun toys a standalone controller could bring to the party such as boost control - ignition control - triggered accessory outputs and so on. The MicroSquirt was chosen as 1. we could modify the firmware 2. it was the best built economical version in the MegaSquirt family 3. it had the appropriate number and range of inputs and outputs to control the known variety of engines with CIS.

    Love it or hate it, MegaSquirt in MicroSquirt form is actually a mature and robust system we have tested extensively over four years. Tricking it into controlling CIS was one of the simpler things we have made it do in that time.

    Our focus over the last six months or so has definitely been on the fuelling side of things. As we have not changed any of the other capabilities of the MicroSquirt the standard MSExtra manual should be used as a reference for everything other than fuelling.

    Our fuel control strategy differs slightly from normal EFI in that we are assuming an interceptor style of fuel map implementation where 100 is the mechanical baseline and entering a map value of less than 100 leans out the mixture and values over 100 adds fuel.

    Tuning wise, WUR based K-Jet/CIS is simpler than KE/CIS-E, the latter being a more complicated system to begin with, but the end result of either still achieves fully mappable tuning with Time and Temperature based warm up curves, Manifold Pressure / RPM based load tables, Wideband O2 AFR target table blending, Acceleration Enrichment in conjunction with Air Plate Overswing and so on.

    We have had Mike from Dkubus involved from the very beginning and there are several others worldwide who are about to do some extensive evaluation including at least one tuning house and CIS specialist "engine dyno" testing both variations on high HP Porsche 930 Turbo engines.

    The project and resulting products are still in the early stages of proving themselves in the field, so we are deliberately not advertising the system until there is enough real world feedback on various installations to give those that are rightly sceptical some confidence we have "done it right".
    Reanimotion
    System Designer
    Basic Member
    Basic Member
    Posts:124


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    03 Jun 2016 03:58 PM
    Over a year later the system seems to be making everyone happy
    So thanks to you all and please pat yourselves on the back for keeping CIS/K-Jet alive in the 21st century

    Cheers,
    Steve
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