[Biturbos4] boost problems

Tue Feb 19 18:34:21 PST 2008

Maybe it's possible if you have some custom program for race gas?   The 
standard upgrade from APR is a ~14psi/1 bar config.

see the website:

http://goapr.com/Audi/products/ecu_upgrade_s4.html

"The APR S4 2.7T chip is available in a 1.0 Bar configuration. The chip is 
designed to operate within the turbochargers' efficiency range. Some APR 
chips are available in an octane specific version for the octane of 
gasoline that you typically run in your car."

On Tue, 19 Feb 2008, Shaun Blair wrote:

>
> i called apr and they DID say it should be boosting @ 18 psi.   they said i can check it by useing a vag scanner and a laptop and monitor it while im driving to see what im boosting at. i dont even know if there is any problem w the tbb
>
> shaun
>
>
>
>> Date: Sun, 17 Feb 2008 13:15:00 -0500
>> From: northrup at crazybug.com
>> To: shaun_blair at hotmail.com
>> CC: biturbos4 at www.audifans.com
>> Subject: Re: [Biturbos4] Annoying Issues with 2001 S4 6-spd
>>
>> APR chip should not exceed 14psi/1bar.
>> TBB is a common source of problems. Replace it with a samco & be done.
>> wilson
>>
>> On Sun, 17 Feb 2008, Shaun Blair wrote:
>>
>>>
>>> when my chip is on i boost at 12 when my chip is off i boost at 6 or so i believe.  i was told im supposed to be boosting at 18 in chip mode, im dont even know it this is true ,  i guess i should call apr and ask them
>>>
>>> thanks shaun,
>>>
>>> S4 Kerscher RSR, APR 93 chip, Greddy exhaust w/cut-out, H&R
>>>>> springs, bilstein shocks, RS4 clutch, custom enclosed cold air intake,
>>>>> tt diverter valves, kevlar wrap y-pipe, turbo timer, phatbox, scped
>>>>> mod, http://youtube.com/watch?v=rhTu10OnGCE
>>>
>>>> CC: quickaudi at gmail.com; biturbos4 at www.audifans.com
>>>> From: glenahan at vfemail.net
>>>> Subject: Re: [Biturbos4] Annoying Issues with 2001 S4 6-spd
>>>> Date: Sun, 17 Feb 2008 09:48:05 -0500
>>>> To: shaun_blair at hotmail.com
>>>>
>>>> I'm confused.
>>>>
>>>> Is 12 psi low? Do you mean 12 psi over ambient? That's 0.8 bar - more
>>>> than normal, i thought.
>>>>
>>>> The TB Boot, not boost, and the Y-hose are rubber fittings that route
>>>> pressurized air through the butterfly, MAF and into the motor. If
>>>> your "mechanic" can't follow that, step #1 is get a new mechanic.
>>>> I'll note that the tears that occur can be hard to find, since they
>>>> normally follow the hose clamp line along the bottom of the TB.
>>>>
>>>> If you want to check it yourself, I'd first buy the bentley manual,
>>>> so you have diagrams and specs.  The TBB is a Y -shaped rubber hose
>>>> at the top, center front. I have nto had one in quite a few years, so
>>>> beyond that, you'll have to go look. But if you;re not familiar with
>>>> how these systems work, do be careful, you dont want to cause new
>>>> problems along the way.
>>>>
>>>> Good luck, come back with more specific questions if you like.
>>>>
>>>> Grant
>>>> On Feb 16, 2008, at 10:07 PM, Shaun Blair wrote:
>>>>
>>>>>
>>>>> audi gearheads, can you help me, im having
>>>>> boost problems and i dont know if i have a leak or if my boost
>>>>> gauge isnt reading propery. i have a
>>>>> boost gauge reading ablout 12 psi at most how do i fix this, do i have
>>>>> a mechanic check the TB boost and if so how does he do that. im very
>>>>> lost please help  you can emailme if u want shaun_blair at hotmail.com
>>>>>
>>>>>
>>>>>   Thanks, Twins2000
>>>>> S4 Kerscher RSR, APR 93 chip, Greddy exhaust w/cut-out, H&R
>>>>> springs, bilstein shocks, RS4 clutch, custom enclosed cold air intake,
>>>>> tt diverter valves, kevlar wrap y-pipe, turbo timer, phatbox, scped
>>>>> mod, http://youtube.com/watch?v=rhTu10OnGCE
>>>>>
>>>>>> From: quickaudi at gmail.com
>>>>>> To: biturbos4 at www.audifans.com
>>>>>> Date: Mon, 4 Feb 2008 19:55:27 -0600
>>>>>> Subject: Re: [Biturbos4] Annoying Issues with 2001 S4 6-spd
>>>>>>
>>>>>> #1.  Team Doorhandle strikes again!!!  I believe you have to order
>>>>>> the entire handle latch assembly and replace it.  Some random
>>>>>> piece of plastic has broken, iirc.  Mine does the same thing; I am
>>>>>> just not wanting to tear into the door yet.
>>>>>>
>>>>>> #2. Probably need to adjust the switch that recognizes that the
>>>>>> clutch is actually engaged.
>>>>>>
>>>>>>
>>>>>> joel
>>>>>>
>>>>>> -----Original Message-----
>>>>>> 1.  The driver?s door handle on the inside has come loose to the
>>>>>> point that
>>>>>> it now splays out about a quarter-inch at rest.  So far, the door
>>>>>> still
>>>>>> opens normally and it doesn?t seem to be ready to fall off, but I?m
>>>>>> wondering if there?s something I can/should tighten or whether
>>>>>> there?s a
>>>>>> piece broken inside (a spring perhaps)?
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2.  When I push the clutch in to start the car, sometimes the
>>>>>> starter won?t
>>>>>> engage (because of the safety) and I have to ?stand? on the clutch
>>>>>> pedal
>>>>>> before it goes.  As this is getting progressively worse, I was
>>>>>> wondering if
>>>>>> there?s something I can adjust myself or whether it?s a job for
>>>>>> trained Audi
>>>>>> mechanics only.  (I?m not much of a ?wrench? but expect this
>>>>>> safety is
>>>>>> implemented mechanically.)
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Biturbos4 mailing list
>>>>>> Biturbos4 at www.audifans.com
>>>>>> http://www.audifans.com/mailman/listinfo/biturbos4
>>>>>
>>>>> _________________________________________________________________
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>>>>
>>>
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>
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