<VV> Fw: Re: EFI Info Re: OBD-II for Corvair

Tue Oct 12 09:55:52 EDT 2010

Charlie, I'll reply to you off line this afternoon and fill you in on what I
did. I haven't started the thread yet, but will. Most of the EFI stuff is
readily available. There were a few kinks to solve, but not too many.

Mark Durham

On Mon, Oct 11, 2010 at 7:18 PM, Charles Lee <Chaz at properproper.com> wrote:

> OK, now we're getting somewhere !
>
> This sounds like a great way to improve performance.
>
> The only drawback to using the original carbs is on a 110, with only one
> carb per bank, but seems a definite improvement.
>
> Where can I find his page with more information on how to get them and the
> rest of the "EFI stuff" ?
>
> Thanks!
>
> Charlie
>
> ----- Original Message ----- From: "Mark Durham" <62vair at gmail.com>
> To: "shortle" <shortle556 at earthlink.net>
> Cc: <virtualvairs at corvair.org>
> Sent: Monday, October 11, 2010 4:39 PM
> Subject: Re: <VV> Fw: Re: EFI Info Re: OBD-II for Corvair
>
>
>
>  Timothy, Ray Sedman is helping me with my EFI project. He has a set of
>> carb
>> tops that converts the carbs to throttle bodies. I happen to be boring my
>> carb bodies out to remove the venturi, which gives you 15 extra HP in and
>> of
>> itself from increasing the available air, but Ray has CAD designed the
>> tops
>> to accept the fuel injectors, so in essence you could just unbolt the old
>> throttle body, add his new top, and plumb in and add the other EFI stuff
>> and
>> go. No mods to cylinder head or carb parts.
>>
>> Mark Durham
>>
>> On Mon, Oct 11, 2010 at 12:35 PM, shortle <shortle556 at earthlink.net>
>> wrote:
>>
>>
>>>
>>>
>>> -----Forwarded Message-----
>>> >From: shortle <shortle556 at earthlink.net>
>>> >Sent: Oct 11, 2010 1:33 PM
>>> >To: Charles Lee <Chaz at ProperProper.com>, Mark Durham <62vair at gmail.com
>>> >,
>>> FrankCB <frankcb at aol.com>
>>> >Cc: virtualvairs at corvair.org, Fastvair at yahoogroups.com
>>> >Subject: Re: <VV> EFI Info Re:  OBD-II for Corvair
>>> >
>>> >I think you guys are trying to reinvent the wheel. Ray Sedman in Calif.
>>> and Chuck Ribblets in Colorado have probably perfected FI for the
>>> Corvair. I
>>> know they have been doing this for quite awhile anyways.
>>> >Timothy Shortle in Durango Colorado
>>> >I like my Rochester HV's and will be driving them to Palm Springs in a
>>> couple of weeks
>>> >
>>> >
>>> >-----Original Message-----
>>> >>From: Charles Lee <Chaz at ProperProper.com>
>>> >>Sent: Oct 11, 2010 1:11 PM
>>> >>To: Mark Durham <62vair at gmail.com>, FrankCB <frankcb at aol.com>
>>> >>Cc: virtualvairs at corvair.org, Fastvair at yahoogroups.com
>>> >>Subject: Re: <VV> EFI Info Re:  OBD-II for Corvair
>>> >>
>>> >>This is great, inspiring information !
>>> >>
>>> >>Maybe my DOA Fords can contribute their electronic devices to make the
>>> >>Corvair OBD-II compliant (or nearly so, anyway) ?
>>> >>
>>> >>Might require some interfacing, but save some money on elecctronics I
>>> >>already have ?
>>> >>
>>> >>The cars are a 1996 Probe and a 2000 Ford ZX-2, both OBD-II cars, so
>>> >>have
>>> a
>>> >>lot to contribute before I bury them in the back yard ?
>>> >>
>>> >>The "Arduino" (http://www.arduino.cc) is similar, but I have no
>>> experience
>>> >>with either, so it's just another adventure that be relevant to the
>>> >>modernization of the Corvair ?
>>> >>
>>> >>Charlie
>>> >>
>>> >>
>>> >>----- Original Message -----
>>> >>From: "Mark Durham" <62vair at gmail.com>
>>> >>To: <FrankCB at aol.com>
>>> >>Cc: <virtualvairs at corvair.org>; <fastvair at yahoogroups.com>
>>> >>Sent: Monday, October 11, 2010 10:55 AM
>>> >>Subject: Re: <VV> EFI Info Re: OBD-II for Corvair
>>> >>
>>> >>
>>> >>> Thanks Frank, its actually Charlie who is the receiver here. I've
>>> already
>>> >>> am
>>> >>> about half way through my EFI project. And, I've already been on the
>>> DIY
>>> >>> EFI
>>> >>> site quite a bit. Rather than building my own board, I bought a >>>
>>> rebuilt
>>> >>> 1223370 GM 90-92 Camaro stick ECM and chip for $50. I just finished
>>> >>> my
>>> >>> wiring harnesses for the ecm (3 of them) and have acquired most of
>>> >>> the
>>> >>> parts. I'm modifying the carbs to straight throttle bodies boring out
>>> the
>>> >>> venturi and ecpanding the bore to 1.33", will make a new set of
>>> throttle
>>> >>> plates for it. Have all the sensors, etc. Just waiting for bad >>>
>>> weather
>>> to
>>> >>> bring the car inside (I still want to drive it on sunny days) and the
>>> >>> conversion will begin!
>>> >>> Mark Durham
>>> >>>
>>> >>> On Mon, Oct 11, 2010 at 10:16 AM, <FrankCB at aol.com> wrote:
>>> >>>
>>> >>>>  Mark,
>>> >>>>
>>> >>>> A good idea to get started with this is to go to
>>> www.diyautotune.com
>>> >>>> and click on the "Tech Articles" button to access a number of >>>>
>>> detailed
>>> >>>> (with
>>> >>>> pics) articles.  The first is a conversion of a carbureted Chevy V-8
>>> to
>>> >>>> throttle body EFI.  Others cover multiport EFI. Whether you use the
>>> >>>> MegaSquirt or go to an EFI from a production car, these articles
>>> >>>> will
>>> >>>> give
>>> >>>> you a lot of insight into what's needed and how to go about it,
>>> >>>> step-by-step.
>>> >>>>
>>> >>>> Incidentally, you can build your MegaSquirt from a kit of parts OR
>>> >>>> buy
>>> >>>> one
>>> >>>> already assembled.  If you build it yourself, I recommend getting a
>>> >>>> Illuminated magnifying glass light as well as a temp. controlled
>>> >>>> soldering
>>> >>>> iron with a VERY small tip.  If you don't have experience soldering
>>> micro
>>> >>>> circuit boards, I suggest buying the already assembled unit.
>>> >>>>
>>> >>>> Frank Burkhard
>>> >>>>
>>> >>
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