[Diy_efi] Audi EFI conversion?

[Ernest Buckler]

Bill, that was quite a thread on the Ferrari chat re MegaSquirt, did anybody 
ever try it?  Same problem of long CIS injector reach on the Audi, so you've 
given me something to look into, for sure.  Nice that the Audi manifolds are 
threaded for a brass insert into which the CIS injectors are pressed.

Ernie B.


----- Original Message ----- 
From: "Bill Shaw" <b.shaw at comcast.net>
To: <diy_efi at diy-efi.org>
Sent: Wednesday, November 02, 2005 7:29 PM
Subject: Re: [Diy_efi] Audi EFI conversion?


> Hey Ernie,
>
> The CIS injectors are quite different from the efi injectors.  There is a
> company that makes an adaptor to convert CIS to EFI bitzracing.com,  but 
> the
> efficacy depends on the design of the CIS system.  It is basically a bung 
> to
> replace your CIS bung that is machined to take the efi injector.  Unscrew
> the CIS injector retainer,  screw in the adapter,  install the new
> injectors, and build up the rest of the fuel system.
>
> http://www.bitzracing.com/products/injector_bungs/injectorbungsdetails.html
>
> It looks like it would work well on my Porsche 928 (I've owned both CIS &
> EFI 928s) but might not work so well on my Ferrari,  reference the 
> following
> thread on FerrariChat:
>
> http://www.ferrarichat.com/forum/showthread.php?t=76848
>
> Once the fuel side is settled,  you need to work out the sparky side of
> things.  Megasquirt is one possibility,  but only controls the fuel.
> Junkyard EFI is another.  I've had pretty good luck with the '749
> controlling both spark & fuel,  others have done well with different GM
> ECMs.  If you're EFI'ing the turbo Audi the 749 is worth a close look.
>
> Bill
> '84 928s 5 sp. Vortech/749
> http://p-928.home.comcast.net/749.html
>
>> From: "Ernest Buckler" <ebuckler at icehouse.net>
>>
>> Ernie here, long time lurker, owner of EFI motorcycles and a couple of 
>> Audis
>> ('86 5000, and '89 200 Turbo 2wd) that I'm thinking really need EFI to
>> replace the messy K-Jetronic constant-flow stuff.  I have a small machine 
>> &
>> welding shop, thus can make brackets, drill  & tap ports and holes, etc.
>> I'd really like to be able to build a fuel map on a PC, datalog, etc., 
>> even
>> tho I know v. little about the process - but figure I've gotta start
>> somewhere, eh?
>>
>> Without a Search Engine for group archives, I'm lost; can anyone direct 
>> me
>> to info on converting an Audi CIS system to EFI, if anyone has done this?
>> The inspiration for this hypothetical project derives from noticing that 
>> the
>> O-ring kit for Audi CIS injectors also was spec'd for a whole long list 
>> of
>> true EFI vehicles as well - meaning that one of these EFI injectors (to 
>> be
>> selected) should plug right in to the Audi ports...?   I'd need to make a
>> fuel rail,  adapt a TPI and some sort of air flow measurement hardware, 
>> plus
>> adapt the Audi temp sensors to the new ECU, also to be selected per
>> suggestions.
>>
>> Thanks in advance,
>> Ernie B.
>>
>>
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