Jim:
Jee, if you spell it out, you've gotta change to the Deutsch keyboard
layout to get the umlaut!
I only mentioned the Volvo setup because I figured it might speak a
language that was a bit closer to the stock  Digifant. I realize that is
nearly 20 year old technology now. (In fact, I talked to Bosch guys
clear back in about 1985 when I was putting a big bore kit on an FI
equipped 1978 type 2. They were all excited about the new "hot wire
technology" back then. I'm sure there are a great many improvments out
there. (I know nearly NOTHING about other brands!)
 Looks promising! Put me on your list if you want beta testing on a ver
stock 1991!
Al Brase

Bostig Engineering wrote:

>Hi all,
>
>I figure I should chime in quickly and give a synopsis of what we're about
>to release. It is a comlpete intake/air meter replacement kit, not just a
>mass air convertor box(as someone pointed out is commercially available).
>It plumbs into the stock snorkel, and replaces the stock airbox/meter. It
>is completely plug and play (two harnesses, and snaps into the stock
>airbox retainer locations) and can be installed and working in a few
>minutes. It is also specifically designed for the 2.1, and comes with the
>correct base fuel curve translation. The base unit allows control of the
>curve via a three button panel and display, and for those with tired
>engines, or indeed with exhaust or other upgrades, the unit will allow you
>to adjust the effective base fuel curve and allow the VW ecu to trim
>correctly if it's been bumped out of range. The learning unit will take
>the signal from a wideband 02, and through a suggested "learning mode" set
>of driving conditions we provide, can set itself up in about 30-45
>minutes(after which you return the wideband to us). This has the advantage
>of allowing an extremely accurate base tune, specific to the owners
>vehicle etc, without requiring the owner to spend time learning how to
>tune.
>
>Converting to mass air isn't rocket science, as someone else points out,
>but to really do it correctly takes quite a bit of care, and attention to
>detail. For example to isolate the meter electrically so it reads
>accurately and consistently down to system voltages below 11 for use on
>older vehicles with weak electrical systems, and to program electronic
>throttle tip-in detection to help compensate for the almost instantaneous
>jump to lean on rapid throttle openings, making it fully plug and play
>with the existing system (no need to cut/splice anything). Everything down
>to choosing a good meter that can help avoid incorrect readings due to
>intake pulse exaggerations(the bosch meter someone mentioned would not
>have been a good candidate for example), that is also durable, available,
>correctly sized and reasonably priced etc.
>
>The exciting thing about the kit is it's performance. We're all eagerly
>awaiting our trip to the dyno, as by the seat-of-the-pants-O'meter, it is
>doing quite well. After having seen the potential gains to be had by
>flowing the stock intake (the ford meter flows better than 250% of the
>vanagon meter), and seeing the need to be able to tune in many cases, and
>indeed after having watched the attempts to "tune" via spring pressure in
>the stock meter... and after having seen air meters not perform due to
>dirty contacts, and afer having read about folks with massive power loss
>at altitude (the mass air conversion kit should fix this problem, please
>contact me if you live at altitude and would like to be a beta tester) we
>figured it was time to offer something.
>
>In any case, we're putting together all of our information now, and will
>have results and data for all to see as soon as we can! In the meantime,
>we'd love to find some additional Boston area beta testers to help us in
>the final stages of developement. As Bob pointed out, the equivalent
>pressure drop of the stock VW intake at 5200 RPM vs. our setup is
>equivalent to about 1 PSI, which if you understand engines, is quite
>substantial. I'd hate to promise more power, more torque, tunability,
>reliability, and fuel economy all in the same product, but I'm afraid I
>might have to soon. But as I said, we'll let the numbers speak for
>themselves. Feel free to email me off list with any questions or if you
>are interested. I don't believe that we are going to "pre-sell" anything,
>as I hate the practice, but beta testers will get priority on the first
>production units naturally. We believe the kit will be called the LMMU
>(Luftmassenmesser Umr�stsatz).
>
>Thanks for reading and keep 'em rolling,
>
>Jim Akiba
>Bostig Engineering
>
>
>