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S3 PE1820 big turbo build

Discussion in 'A3/S3 Forum (8L Chassis)' started by Welly, Mar 29, 2011.

  1. Welly
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    Welly VX220 SC Driver :)

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    [May 20, 2011]
    Can you blame me, really?
  2. Welly
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    Welly VX220 SC Driver :)

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    [May 21, 2011]
    Happy days, we're through the MOT after my bodge on the headlights to bring the level up.... :thumbsup:

    Videos to follow soon.... hehehe
  3. Speedy Steve
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    Speedy Steve Active Member

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    [May 21, 2011]
    Glad to see it pass mate know get it out on the road and have some fun!
  4. scoobyra
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    scoobyra It's not f@cking ORANGE!!!!!

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    [May 22, 2011]
    Is it done now then Welly? I can bring the black car up and we can see how it goes compared to yours.......until my vf34 goes bang again! lol
  5. Welly
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    Welly VX220 SC Driver :)

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    [May 22, 2011]
    Yeah mate, all done as far as I can tell. Fingers crossed anyway... lol.

    I drove it down to Weston Super Mare yesterday with the missus and the nipper. No problems on the way down or back. The DIS was claiming ~45 MPG on the motorway using cruise control at 80.

    Yeah right. However I did do 100 miles to about 3/8s of a tank of fuel, so in all fairness that's not that bad.

    Went out hunting last night, however didn't come across anything worth racing. Booo.
  6. finesse
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    finesse Active Member VCDS Map User

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    [May 22, 2011]
    Good work! Who needs an RS Audi :)

    P.s what's your 0-60 , estimated or previous K04 hybrid?
  7. Welly
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    Welly VX220 SC Driver :)

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    [May 23, 2011]
    Not sure yet mate, I need to get it out of an evening to do this really....

    I seem to have developed a misfire on peak boost - annoying.... lol

    Changing spark plugs today, they have got a little hot so that's the first thing on the list to change.

    Welcome back to S3 ownership... lol.
  8. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [May 23, 2011]
    Good news mate. :sign_welcome: back ;)
  9. Sandip
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    Sandip Well-Known Member

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    [May 23, 2011]
    Wouldn't be right owning an S3 without a missfire lol
  10. Welly
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    Welly VX220 SC Driver :)

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    [May 23, 2011]
    LOL, annoyingly true.

    It will most likely be plugs or that damn coil wiring again. I might just bite the bullet and buy the repair kit....
  11. DaveA3
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    DaveA3 Audi A-Trizzle!

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    [May 23, 2011]
    put ur engine in a tt :D
  12. Dane
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    Dane Faster than a V12 Q7

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    [May 23, 2011]
    I'll probably pop over to Bill's later on, so swing by :rock:
  13. Welly
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    Welly VX220 SC Driver :)

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    [May 23, 2011]
    Yeah, I may well do. I wanted to get there yesterday but couldn't due to family issues.

    I'll see you there about 8.30ish.
  14. Dane
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    Dane Faster than a V12 Q7

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  15. Welly
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    Welly VX220 SC Driver :)

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    [May 23, 2011]
    LOL, depends which houses.... turned out some ones by the Severn in 2007 weren't all that safe!!
  16. Dane
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    Dane Faster than a V12 Q7

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  17. Welly
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    Welly VX220 SC Driver :)

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    [May 23, 2011]
    lol.... don't I bloody know it, towing the S3 off my drive en route to Bill's was a nightmare...
  18. Welly
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    Welly VX220 SC Driver :)

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    [May 24, 2011]
    OK, went out and bought some plugs yesterday. Got home, fitted them, took Bumble out again. Missing.

    Boooooooooooooooo.

    Checked the coil wiring, no problems there either.

    Gave up with that temporarily and decided to find the fuel smell that I was getting in the cabin instead. I knew that the number 4 injector seat was damp.

    Turns out that the misfire and the leak were the same problem.

    The bolt for the fuel rail has stripped a few rows of thread inside the inlet manifold (A symptom I am starting to see around my engine bay now after the thousand times it's been apart) and had worked itself loose. Under boost it was just allowing air to escape.

    Longer bolt installed, fuel smell gone, and misfire fixed.... Happy days. :)
  19. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [May 24, 2011]
    Nice work mate. Stripped threads and snapped bolts are my worse nightmare.
  20. Welly
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    Welly VX220 SC Driver :)

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    [May 24, 2011]
    Honestly mate, any aluminium thread that is in my engine by is now showing signs of having a hiding. Sadly, they don't last forever.
  21. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [May 24, 2011]
    I had a very close call with my main rear suspension bolts. Got both of them cross threaded at one point but managed to rescue them and get them in straight :faint:
  22. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Well, it's been a week of driving it around everywhere now since the MOT.

    A few small issues have crept up, but nothing massive, and they were all easily resolved.

    Will be changing a few things this weekend for the better one hopes....

    I am moving up to the next size WMI Nozzle. I currently run a DO5 nozzle, which is 5 gallons per hour. I will be moving this up to the next size, which oddly is a DO7 (7 GPH). They simply don't make a DO6.

    This turbo is shifting 280+ G/S of air, and I think that the WMI is now less effective than it was based on this.

    Will fit and see when Bill has time to sling it on the dyno, as when it was poorly, fuelling was added and timing taken out temporarily.

    Also, I currently vent my PCV to atmosphere. My main breathing point is the stub out of the cam cover, and that then vents to the back of the engine bay.

    The problem is that I get the smell of oil vapour in the cabin and it is very annoying I must admit.

    Planning to formulate a new plan and reconfigure this so that it vents in a more controlled manner. Not sure how yet....
  23. Sandip
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    Sandip Well-Known Member

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    [Jun 1, 2011]
    Not sure if it'll work Welly but what if you plumbed the breather into the charcoal canistor and then vented it from there to atmosphere?
  24. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Not sure if what will work dude?
  25. Sandip
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    Sandip Well-Known Member

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    [Jun 1, 2011]
    Might have a bash it myself since my charcoal canistor is sat in the garage collecting dust lol

    Your not running you charcoal canistor are you??
  26. Alex C
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    Alex C Well-Known Member

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    [Jun 1, 2011]
    having your PCV vent to the charcoal canistor
  27. Sandip
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    Sandip Well-Known Member

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    [Jun 1, 2011]
    Sorry Welly, this is what i meant lol
  28. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Ahhhhh right, no, I'm not sure how that would work long term, and also mine isn't even there any more.

    I've decided I will leave as is, however vent the pipe further underneath the car. The problem is currently that the pipe isn't that long, and the gasses are just coming back up into the engine bay.
  29. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    [Jun 1, 2011]
    I need to vent mine bettet, that smell is rank in hot weather lol.
  30. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Yeah, I've noticed it more since it's been warmer I must admit, interesting you say that.
  31. superkarl
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    superkarl MAN OF STEEL

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    [Jun 1, 2011]
    I've moved my breather filter right to the front of the bay right next to the battery, reduced smell alot. If i put the bonnet seal strip back on i get nothing, until I open my window.
  32. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Tuffty said exactly that about the rubber strip, BUT it's a trade off unfortunately.

    Keeps the engine nice and cool and under bonnet temps right down without the rubber strip.

    I have just bought a metre of 19mm ID hose, which should be enough for me to cable tie it down either at the front/bottom of the block, or at the back of the subframe.
  33. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    From what I have read, reconnecting the vac feed under the inlet manifold through the one way valve should draw the gasses from the PCV into the inlet manifold on idle.... Obviously due to the vac feed from the mani pulling the gasses in.

    Interesting.....:think:

    Sadly, this won't work without reconnecting the TIP.

    The downside of it being a closed loop system is that it's either all or nothing.
  34. superkarl
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    superkarl MAN OF STEEL

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    [Jun 1, 2011]
    Yeh I still have the strip removed regardless of smell. It really is an improvement having it at the front behind the grill, the air flow effectively diluting the fumes. I can imagine having it really low will eliminate any smell. My only concern is mine as it is has oil on the filter, must be fumes condensing, so having it hanging down will probably drip.
  35. mk1chopper
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    mk1chopper Missing the S3

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    [Jun 1, 2011]
    Do you still have an air box? or are you running a cone filter with the box removed? could you vent it near the filter so effectivly drawing the smell back in to the engine?
  36. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    Sort of semi defeats the object of doing it though. Oil vapour reduces octane....
  37. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    I'm considering running the pipe straight down through the old CAI for the stock airbox (The hole in the NSF side of the bay). That would get it out of the way, remove smell I would think, and also vapour would be diluted by passing air...

    Sooooo many options
  38. Speedy Steve
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    Speedy Steve Active Member

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    [Jun 1, 2011]
    Mines started to smell more. mind that could be down to the warmer weather and actually driving it lol. Think ill move my filter down near the front suspension some where
  39. Welly
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    Welly VX220 SC Driver :)

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    [Jun 1, 2011]
    It would seem then that the warmer weather does makes stinky issues worse....... That's one to bear in mind in future...
  40. Speedy Steve
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    Speedy Steve Active Member

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    [Jun 1, 2011]
    yep especially with the rubber strip removed!

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