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suitable boost on s3

Discussion in 'A3/S3 Forum (8L Chassis)' started by big nog, Feb 27, 2013.

  1. big nog
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    big nog Member

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    [Feb 27, 2013]
    is 1.7bar suitable for an s3 8l with cai, green cotton panel, agu head with transition gasket, 3" pipe straight thru, relentless mani, all silicone hoses under hood, fmic, custom map, turbosmart dv, debaffled charge pipe? my tuner says these engines are capable of running this boost. ive read 1.5bar is max though.
    any advice appreciated
    thanks in advance
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  2. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Feb 27, 2013]
    higher than I map them to on std internals...
    that level of boost is heat generating.
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  3. big nog
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    big nog Member

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    [Feb 27, 2013]
    what boost pressure would be safe to run on this setup?
    could this also trigger an overboost code?
    Last edited: Feb 27, 2013
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  4. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Feb 27, 2013]
    if mapped properly there should be no codes..

    are you experiencing issues? asking after the map is a bit odd.

    Not everyone tunes the same way.. Your custom mapper did what he did... and you paid him for his services.

    as for "safe" level.... haha... is there such a thing.. kinda like pin the tail on the donkey

    its not just boost which determins the power/safety of the tune.. Commenting further is futile without data to see.
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  5. Prawn
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    Prawn My other car is a MINI!!!!

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    [Feb 27, 2013]
    that sounds like a fairly decent st2 spec, but at 1.7 bar, that's 25psi, I'd be concerned about the stock rods myself....

    Also, I'd be concerned about why it's mapped to run that much boost? Developments in mapping over the past 2 years or so have shown that to get the best figures from a ko4 you need to keep it down to below 1.5 bar and make the power from the timing.
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  6. big nog
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    big nog Member

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    [Feb 27, 2013]
    Ok thanks for advice, gunna ask to be turned down to 1.5bar. Thanks for help peeps
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  7. Buzzer
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    [Feb 27, 2013]
    if they had boost at 1.7, I'd ask a load of other questions on all the other parameters they changed, including timing.
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  8. big nog
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    big nog Member

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    [Feb 28, 2013]
    Can you recommend anyone round Yorkshire area to map my car? Not really confident in this guy now lol
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  9. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Feb 28, 2013]
    Not dedicated VAG no... you have to go further a field
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  10. big nog
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    big nog Member

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    [Feb 28, 2013]
    Where is the closest to Barnsley area? Think I need t make a trip just to make sure its running fine
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  11. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Feb 28, 2013]
    R-tech is closest
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  12. big nog
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    big nog Member

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    [Feb 28, 2013]
    Ok cheers will look it up mate
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  13. big nog
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    big nog Member

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    [Feb 28, 2013]
    I've got car back now with 1.47bar boost, running at 248bhp. That sounds bit low to me, what bout u guys? Looks like r-tech here I come
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  14. Prawn
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    Prawn My other car is a MINI!!!!

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    [Feb 28, 2013]
    sounds **** if I'm honest mate :laugh: Sorry for being plunt.....

    Westy has 305bhp from the same boost, granted that's with WMI and a built engine, but it gives you an idea.

    Plenty of cars have made 290bhp at both R-tech and B5 from 1.5 bar....

    Sounds like old school tuning methods being employed here....
    #14
  15. big nog
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    big nog Member

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    [Feb 28, 2013]
    Ok thanks for letting me know, will be going rtech in next month anyway
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