Announcement

Collapse
No announcement yet.

Ignition Module

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    Ignition Module

    Can anyone tell me the difference between the ignition modules 4A0 905 351 and 4A0 905 357? I have a MY92 80 Quatttro 2.8 V6 fitted with a 4A0 905 357 and want to know if the 4A0 905 351 will fit and work ok? I am lead to believe it will but i both numbers are fitted to a combination of 80's and A4's both the 2.8 and 2.6 V6 models?but there must be some knid of difference between them?

    Cheers guys hope someone can help?
    Money is everything! Second to Power of course!!! But money breeds power??
    Tags: None
  • #2
    AFAIK - they are interchangeable - pinout is certainly the same... I believe some versions to be higher specified than others but I know others have swapped various POS units from V6 in and out of I5T engines without any noticeable problems...
    Paul Nugent
    Webmaster http://S2central.net
    Administrator http://S2forum.com

    1994 S2 Coupe ABY - aka Project Lazarus
    2001 A6 allroad 2.5TDi - family tank
    2003 S4 Avant 4.2 V8 - daily burble

    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

    There are only 10 kinds of people that understand binary - those that do, and those that don't

    Comment

    • #3
      Originally posted by S2central.net View Post
      AFAIK - they are interchangeable - pinout is certainly the same... I believe some versions to be higher specified than others but I know others have swapped various POS units from V6 in and out of I5T engines without any noticeable problems...
      Single difference, that mounting holes and heatsink are different. To mount them properly you need some drilling etc. Quite a pita on URS4.

      On high hp applications, stock turbo items are preferable, because they are more precise.

      I am running V6 items on my AAN and I'm personal witness of 3 success replacement stories (in real life) without any problems.

      Sau
      200 20vt 88' 3b, human carrier
      CQ typ85 with AAN inside, see project blog at http://kwlw.blogspot.com

      Comment

      • #4
        I didn't realise the physical mountings were different spacing - that is a PITA - cos a good contact to the chassis is needed for POS thermal management.
        Paul Nugent
        Webmaster http://S2central.net
        Administrator http://S2forum.com

        1994 S2 Coupe ABY - aka Project Lazarus
        2001 A6 allroad 2.5TDi - family tank
        2003 S4 Avant 4.2 V8 - daily burble

        Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

        There are only 10 kinds of people that understand binary - those that do, and those that don't

        Comment

        • #5
          Originally posted by S2central.net View Post
          I didn't realise the physical mountings were different spacing - that is a PITA - cos a good contact to the chassis is needed for POS thermal management.
          I have used self adhesive i486DX cpu heat sink (got box of them form work somehow) on urs4 and urs6 . Few holes in it, bolt end stage to sink, few cable zips to orginal mounting place - job done, even orginal box fits.

          BTW - was impressed by heat from the downpipe and manifold when doing that. Nothing strange, that usually hotter end stage which is above downpipe fails...

          On my coupe - piece of flat alloy profile from Halfords analog does the cooling job.

          Sau
          200 20vt 88' 3b, human carrier
          CQ typ85 with AAN inside, see project blog at http://kwlw.blogspot.com

          Comment

          • #6
            Cheers guys, really appreciate the help!
            Money is everything! Second to Power of course!!! But money breeds power??

            Comment

            • #7
              4A0 905 357 must have been superseded with 4A0 905 351. (weirdly, the FA has no info on the 357 versions, but I've got one in front of me, go figure)
              As said above, you'd get away with using a POS from an I5 if push came to shove.
              Here's the mounting difference between an I5 POS and a V6 POS.
              My bro runs one V6 POS in his ABY Coupe (other is the normal one).

              I5 Bosch



              V6 Beru

              2001 Avus Silver B5 RS4.
              2004 A4 Avant 1.8T quattro Sport-LE.
              1995 S2 Coupe - sold (sniff)

              Comment

              • #8
                I have a new Beru ZM027 if needed by anyone
                Quattro Corner Audi OEM Parts

                Comment

                Previous template Next
                Working...
                X

                We process personal data about users of our site, through the use of cookies and other technologies, to deliver our services, personalize advertising, and to analyze site activity. We may share certain information about our users with our advertising and analytics partners. For additional details, refer to our Privacy Policy.

                By clicking "I AGREE" below, you agree to our Privacy Policy and our personal data processing and cookie practices as described therein. You also acknowledge that this forum may be hosted outside your country and you consent to the collection, storage, and processing of your data in the country where this forum is hosted.

                I Agree