[Diy_efi] Audi EFI conversion?

[Bill Shaw]

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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