Date:         Thu, 14 Nov 2013 19:27:39 -0800
Reply-To:     Brett Ne <brettn777@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Brett Ne <brettn777@GMAIL.COM>
Subject:      Re: Arduino and Vanagons
In-Reply-To:  <1384484501.12248.YahooMailNeo@web162702.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=windows-1252

Nice!  But pretty big bucks...still much need for a reliable, less
expensive ICU.  I sent an email to the GoWesty support to see if they would
be willing to share some of there PWM duty cycle specs(such as PWM duty
cycle during starting, AC active, PS active, etc)  that they use when
refurbishing and bench testing their ICU's.  If anyone here has any pull at
GoWesty, you might consider encouraging them to share.  I mentioned that
anything that we create is fully open and avaiable for them to make and
sell.

Brett


On Thu, Nov 14, 2013 at 7:01 PM, Stuart Fedak VE3SMF <ve3smf@yahoo.com>wrote:

> Have a look at the GoWesty Fuel Injection Component Replacement Kit
> (November 2013)
>
> Looks like a complete system solution.
>
> ref:  http://www.gowesty.com/library_article.php?id=1532
>  ......."We have just one last detail left to sort out before we can
> release our brand new GW-EFI fuel injection component kit to replace
> the antiquated, no-longer-available, and unreliable parts of the Bosch
> Digifant Electronic Fuel Injection (EFI) parts that came in all 1986-91
> Vanagons. We have fifteen systems running, and have a combined 30,000+
> miles of testing under our belts. Overall performance is considerably
> better than the original Digifant parts, and better reliability is already
> revealing itself. The results continue to be positive. The last detail is
> getting the system to idle normally under varying A/C and power steering
> loads. This last hurdle required a custom firmware to be written for the
> ECU, which is now complete. We are now in the process of finishing up the
> map software. Look for the kit to be available before the end of 2013.
> Here is what this kit will do:
>
> • Replace no-longer-available new (NLA) Bosch components
> • Improve reliability
> • Improve fuel efficiency
> • Improve performance"..........
>
> Here is a basic description of the components in the kit, and explanation
> of the approach:
> See images at GoWesty
>
>
> http://www.gowesty.com/images/cms/sized/sized_13f35afdad1cd57521ea81dcf5dbcd0f.jpg
>
>
> http://www.gowesty.com/images/cms/sized/sized_ae199b71dcdb4fdebae1ead839d03787.jpg
>
> 1. Rebuilt throttle body—features precision ball bearings, replaces
> worn-out NLA original
> 2. Modern throttle position sensor (TPS)—replaces outdated NLA throttle
> on/off switch
> 3. Modern manifold absolute pressure (MAP) sensor—new feature for better
> fuel management control
> 4. New oxygen sensor—modern 4-wire design with sealed electrical plug
> (duh!)
> 5. New knock sensor—new feature to protect engine against detonation
> regardless of fuel octane rating
> 6. Modern electronic ignition coil—replaces antiquated original design
> 7. All new injection harness and power delivery harnesses:
>   • Replaces old, corroded, prone-to-moisture intrusion and NLA harness
>   • All modern completely sealed connectors (no rubber boots to rot away)
> 8. Single ground point—bolts to factory location in engine bay
> 9. New Delphi electronic control unit (ECU)—replaces NLA Digifant ECU and
> ICU (idle control unit)
> There are only four connections to be made to the vehicle:
> (1) Ground (#8 above)—brown wire bolted down at factory location in engine
> bay
> (2) Constant power—red wire bolted down inside the factory
> weather-resistant junction box in front left corner of engine compartment
>      - New GoWesty Alternator Wiring Harness Upgrade Kit will be included
> to improve reliable power to this point
> (3) Ignition power—black wire splice connection inside same junction box
> (4) Tach signal—green wire splice connection inside same junction box
> The use of the following components of the Digifant system will be
> modified or eliminated:
> • Air flow meter (AFM) will be plugged back in, but is not used for air
> flow measurement
>     - The signal produced by the swinging door inside is no longer
> needed—replaced by new MAP and TPS
>     - Only the signal from the existing intake air temperature (IAT)
> sensor within the AFM is re-used
> • Idle control unit (ICU) is eliminated—idle control will be handled by
> Delphi ECU
> The following components will be re-used and need to be in good shape, and
> all will continue to be supported and available if/as needed from GoWesty:
> • Fuel injectors
> • Distributor
> • Fuel pressure regulator
> • Fuel pump
> • Idle air control (IAC) valve
> It is HIGHLY recommended that all of these items be replaced as well if
> they are original, or of unknown age. Look also for an optional GoWesty kit
> that will supply all of the items we feel are critical for reliable
> operation, long-term.
> Timing is set just like with Digifant, 35 degrees +/- 5 degrees at 3000
> RPM. Idle speed and fuel mixture is not adjustable, and completely
> automatic, as it was (supposed to be!) with Digifant.
> Once installed, the appearance is almost indiscernible from Digifant:
>
> The price of the new GoWesty EFI will be $1995, and it will be sold
> "exchange," with a core charge of $500. That's $2495 total, and you get
> back $500 when we get back your old Bosch harness, ECU, ICU, and throttle
> body.
> This is a very exciting project, and we're looking forward to bringing it
> to market before the end of this year. Stay tuned...
>
> **********************************************************************
> Cheers!
> Stuart
>
>