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1.8t boost level?

Discussion in 'A3/S3 Forum (8L Chassis)' started by 2pac, Oct 23, 2004.

  1. 2pac
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    2pac E3 APC

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    [Oct 23, 2004]
    Whats the standard boost pressure on the A3 1.8T, and S3, if different. I noticed someone on here had a ''1.4bar upgrade'' from one tuner. Compared to the jap cars I'm used too this is quite high and would require a very carefully set up fuel and boost controller arrrangment or even a seperate fuel managment system. I'm of the understanding these engine are VERY strong!
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  3. PaulRS3
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    PaulRS3 Well-Known Member

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    [Oct 23, 2004]
    S3 is approx 0.9 bar. standard

    A3's are less.
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  4. foolish3uk
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    foolish3uk Member

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  5. Markb
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    Markb Active Member

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    [Oct 23, 2004]
    Mine is boosting at .5 bar
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  6. HTC
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    HTC Active Member

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    [Oct 24, 2004]
    .5-.6 is about average.

    1.4 bar on a standard audi turbo would melt it in no time at all.

    You need a big turbo an big intercooler for that level of boost.
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  7. NWMark
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    NWMark Member

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    [Oct 24, 2004]
    [ QUOTE ]
    HTC said:
    1.4 bar on a standard audi turbo would melt it in no time at all.


    [/ QUOTE ]

    Do you mean all Audi turbos or just the A3 ones (K03 & K03s) as i know that most chipped S3's (K04) run at least 1.4 bar of boost!!

    Mark
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  8. Danielson
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    Danielson Member

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    [Oct 24, 2004]
    im running spikes of 15psi then dropping off to 13 psi on my chipped a4. if its any help, its been chipped for over a year and nothing has melted yet..
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  9. mlcadman
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    mlcadman Member

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    [Oct 24, 2004]
    mines set to around 12-13 psi, standard is around 6 psi on an a3
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  10. Ryanc
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    Ryanc Active Member

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    [Oct 24, 2004]
    some s3's run 1.7 bar although not to redline, they all tend to drop to around 1 bar because the turbo can't hold the boost.Thats why you can't get much more 270bhp out of a k04 s3.The engines have forged pistons and a v.strong crank,the weak link are the con-rods which fail when severly pushed,hope that helps.
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  11. 2pac
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    2pac E3 APC

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    [Oct 24, 2004]
    S3's have Forged pistons as standard, nice one. What about internal specs of the a3 1.8t. I heard they are strong enough to take twice there power, or is this person gettin mixed up with the S3 specs.

    I've never heard of a chipped car that looses 0.7 bar boost because the turbo can't hold it. Thats quite a dip in power. Is this not a fault with the map of the chip rather than a weak turbo. I'd hate it if my car lost that much boost
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  12. Ryanc
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    Ryanc Active Member

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    [Oct 24, 2004]
    The turbo is just too small to hold the boost in the higher rpm range,you'll find alot of guys here running up to 1.7 bar but like i said it will be nearer 1 bar at redline.
    standard a3 1.8t's don't have forged pistons but still have strong internals,in fact some have better flowing heads than the s3 but the weak con-rods are still present.
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  13. 2pac
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    2pac E3 APC

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    [Oct 24, 2004]
    [ QUOTE ]
    The turbo is just too small to hold the boost in the higher rpm range,you'll find alot of guys here running up to 1.7 bar but like i said it will be nearer 1 bar at redline.
    standard a3 1.8t's don't have forged pistons but still have strong internals,in fact some have better flowing heads than the s3 but the weak con-rods are still present.


    [/ QUOTE ]

    Nice one, some good info there. Good to no if I eva want more power it will take it
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  14. HTC
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    HTC Active Member

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    [Oct 24, 2004]
    Yeah sorry guys. Was talking about K03.
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  15. Dean_T
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    Dean_T Active Member

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    [Oct 25, 2004]
    i think my A3T peaks around 1.25bar but not 100% sure on that
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  16. PaulRS3
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    PaulRS3 Well-Known Member

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    [Oct 25, 2004]
    not standard it shouldnt.

    S3 boost is only 0.9 bar standard... with the bigger K04 turbo.
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  17. jimboA3
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    jimboA3 Member

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    [Oct 25, 2004]
    my a3 quattro is peking at 1.5 bar - sustaining 1.25.
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  18. Dean_T
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    Dean_T Active Member

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    [Oct 25, 2004]
    [ QUOTE ]
    PaulS3 said:
    not standard it shouldnt.

    [/ QUOTE ]

    thats right, its been remapped, no idea what it was as standard though /ubbthreads/images/graemlins/frown.gif
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  19. PaulRS3
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    PaulRS3 Well-Known Member

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    [Oct 25, 2004]
    remapped is the way. /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/groovy.gif
    #18

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