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TFSI Coil packs (again but a different question)

Discussion in 'A3/S3 Forum (8L Chassis)' started by mattyboy199, Mar 11, 2013.

  1. mattyboy199
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    mattyboy199 Active Member

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    [Mar 11, 2013]
    Ive been expierencing some hesitation issues on boost so plan to replace the plugs (after 50k) in a hope to remedy the problem however chances its just a coil so therefore intend to purchase just one to check each of the exsisting, Ive also been reading alot about TFSI coil packs so my question is can i mix & match without any issues ? (run 1 x TSFI coil & 3 20v coils).

    Eventually i would replace all coils but initially solve the problem.

    Regards

    Matt
    #1
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  3. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Mar 11, 2013]
    Can't think of a reason why it wouldn't work but tbh the Awesome deal seems cheap enough for all four...

    <tuffty/>
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  4. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Mar 11, 2013]
    Already posted this in my build thread but worth posting here as its relevant

    Fellow ASN'r Aragorn sent me an interesting link to one of the yank sites... interesting in particular as it was totally down my OEM street...

    [​IMG]

    [​IMG]

    ...yes... thats right... actual OEM (from VAG) coil pack adaptors suitable for TFSI coils... they need trimming for use on cam covers with push down coils though as you can see they protrude out the bottom... the engines these come from (VAG V8's typically) used the bolt down type of coil originally... guess VAG decided this would be an easier way to migrate over to push downs rather than retool for new cam covers...

    This how they sit pre-modding...
    [​IMG]

    [​IMG]

    Time to get the dremel out...
    [​IMG]

    ...note that you need to be sure you have trimmed it right as due to the nature of the fixings they won't take too kindly to being removed and refitted too many times...

    So, final fit...
    [​IMG]

    With the TFSI coil pack in...
    [​IMG]

    ...and comparison to a coil not using an adaptor....
    [​IMG]

    All in all a great result... while they may not look as 'bling' as the aluminium ones kicking about they work out at about £2 each from a dealer (part number in the pic below)
    [​IMG]

    For bolt down cam covers they look a bit like this....
    [​IMG]

    Couple more pics... sorry it was getting dark by the time I had gotten around to sorting the others...

    [​IMG]

    [​IMG]

    Pleased with my adaptors that cost less than a tenner :)

    <tuffty/>
    #3
  5. s3mad_dude
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    s3mad_dude Noggies ruuuule!

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    [Mar 11, 2013]
    Right up my street - but I feel I might get shot for this.........there's nothing wrong with the later Audi standard 8L coil packs.
    #4
  6. Andrew@A.L.D
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    Andrew@A.L.D May add NOS to 600+bhp?

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    [Mar 12, 2013]
    I've got a few sets of coil packs
    #5
  7. Sam_
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    Sam_ Down under

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    [Mar 12, 2013]
    Bolt downs as fitted to the RS6 and some TTs seem to be the most reliable. I've certainly had no issues and a friend who runs a vw specialist is always replacing push downs but rarely bolt downs.
    #6
  8. Scullies
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    Scullies Well-Known Member

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    [Mar 12, 2013]
    Another thing to note, if you fit TFSI coils to your engine without an adaptor, the rubber seal doesn't completely seal the gap and when you wash your engine the cavity where the coil pack and spark plug sit will fill up with water. Then when you try start the car, POP goes the engine management fuse and you think you have blown the ECU. :(

    So if you wash the engine, blow out the cavities before starting the car or cover the cavities before washing.
    #7
  9. Sam_
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    Sam_ Down under

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    [Mar 12, 2013]
    Alternatively do it by hand rather than hosing it down haha
    #8
  10. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Mar 12, 2013]
    Actually just realised I posted the OE adaptor info here by mistake lol... I meant to update the actual TFSI thread that is in the stickies (which I have now done... ) DOH!!

    Anyhoo...
    This is a fair point but... the TFSI coil are alleged to be a higher energy coil pack and can produce a decent spark in a bigger gap... it was common practice to regap plugs on mapped 20v's to 0.7mm from the std 0.8mm to prevent misfires but whether this was more due to the early 20v coils being rubbish I don't really know as I have not personally had an issue with any coil pack since owning my car... I replaced all 4 a month after buying my car based on poor advice from a tuner (I didn't know any better back then) and have had the same packs in up until I changed to the TFSI ones...

    All I can tell you is that I have seen lots of 20v coil packs fail shortly after being mapped and only once seen a TFSI coil pack fail... so far... I run a gap of 0.85mm on my plugs with boost pressures up to 28psi with no issue on the TFSI packs... whether that is due to them being relatively new or actually better than 20v packs time will tell... they are not much different in price so its worth a punt and now that you don't have to pay a fortune for adaptors either then it makes it more appealing to try out..

    <tuffty/>
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  11. mattyboy199
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    mattyboy199 Active Member

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    [Mar 12, 2013]
    I've managed to get about 50k out of my current coil packs assuming its them that are failing. The awesome coils are these oem genuine parts ?

    Tuffty how have you managed to get your engine bay looking so minimal, my rocker/cam cover has loads of pipes etc running over it.
    Last edited: Mar 12, 2013
    #10
  12. rhubarb4
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    rhubarb4 Certified Jardo Slayer

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    [Mar 12, 2013]
    Just ordered a set of the adapters Paul, great find only cost me £6. I wonder how long it will be before the price starts to rise like the old Cupra front lip did.


    Chris.
    #11
  13. [Dave B]
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    [Dave B] Daddy

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    [Mar 12, 2013]
    Yes, they just order them in bulk from Mexico.
    #12
  14. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Mar 12, 2013]
    I got skillz ;P

    <tuffty/>
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  15. Scullies
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    Scullies Well-Known Member

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    [Mar 12, 2013]
    Tuffy, when is your TFSI coil pack harness cover being delivered ;)

    [​IMG]

    Attached Files:

    #14
  16. Birdy
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    Birdy Member

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    [Mar 12, 2013]
    where can i get this from??
    #15
  17. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Mar 12, 2013]
    Its the loom cover off a TFSI... dealer will be able to supply this

    <tuffty/>
    #16

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