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  1. #1
    E3 APC

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    1.8t boost level?

    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. #2
    PaulS3's Avatar
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    Re: 1.8t boost level?

    S3 is approx 0.9 bar. standard

    A3's are less.

  4. #3
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    Re: 1.8t boost level?

    .6 bar

  5. #4
    Markb's Avatar
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    Re: 1.8t boost level?

    Mine is boosting at .5 bar

  6. #5
    HTC
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    Re: 1.8t boost level?

    .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.

  7. #6
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    Re: 1.8t boost level?

    [ 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

  8. #7
    Danielson's Avatar
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    Re: 1.8t boost level?

    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..

  9. #8
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    Re: 1.8t boost level?

    mines set to around 12-13 psi, standard is around 6 psi on an a3

  10. #9
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    Re: 1.8t boost level?

    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.

  11. #10
    E3 APC

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    Re: 1.8t boost level?

    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

  12. #11
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    Re: 1.8t boost level?

    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.

  13. #12
    E3 APC

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    Re: 1.8t boost level?

    [ 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

  14. #13
    HTC
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    Re: 1.8t boost level?

    Yeah sorry guys. Was talking about K03.

  15. #14
    Dean_T's Avatar
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    Re: 1.8t boost level?

    i think my A3T peaks around 1.25bar but not 100% sure on that

  16. #15
    PaulS3's Avatar
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    Re: 1.8t boost level?

    not standard it shouldnt.

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

  17. #16
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    Re: 1.8t boost level?

    my a3 quattro is peking at 1.5 bar - sustaining 1.25.

  18. #17
    Dean_T's Avatar
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    Re: 1.8t boost level?

    [ QUOTE ]
    PaulS3 said:
    not standard it shouldnt.

    [/ QUOTE ]

    thats right, its been remapped, no idea what it was as standard though [img]/ubbthreads/images/graemlins/frown.gif[/img]

  19. #18
    PaulS3's Avatar
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    Re: 1.8t boost level?

    remapped is the way. [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/groovy.gif[/img]

 

 

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