Date: Sat, 27 Nov 2004 14:50:02 -0600
Reply-To: John Rodgers <inua@CHARTER.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: John Rodgers <inua@CHARTER.NET>
Subject: Re: LMMU was: mass air flow sensor adapted to a vanagon
In-Reply-To: <54500.207.69.140.37.1101582138.squirrel@207.69.140.37>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Jim,
This is all very exciting. I'm not one for the beta testing, but I am
looking forward to hearing/seeing the results and a report of your dyno
testing.
I have considered many possible engine changes for my van, but always
seem to come full circle back to the 2.1L WBX. This unit of yours could
be a real boone to those of us that would prefer to stick with the 2.1L
Regards,
John Rodgers
88 GL Driver
Chelsea, AL
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 Umrüstsatz).
>
>Thanks for reading and keep 'em rolling,
>
>Jim Akiba
>Bostig Engineering
>
>
>
>
| 
