[Biturbos4] APR Chip?

Fri Feb 6 19:28:46 EST 2004

that's great to hear keman. i had all but written off
the A6 2.7T in favor of a 1997+ BMW 540i.

but, there are a lot of turbo failures with the 2.7T
in comparison to other turbocharged motors, right?

seems like a reason the turbos die is because you need
to run synthetic oil, and many do not. the oil pasages
are apparently very small on this turbo. and other
turbos do seem to be a lot more stout when it comes to
the average joe treating the car, like a, well...car.
not their baby. meaning, not paying attention to cool
down and what not.

would a turbo timer help? does the motronic have one
built in?

i know jack out how turbos are oiled. do they get
their oil from the engine? or separatly?

where do you live? i'd love to have to check out
potential cars. i'm in CA. so, would a good bet be to
find a decent example. then put some better hoses and
clamps, after market high quality by pass valve
IMMEDIATLY? what else?

you have to admit though, the GT25 turbos are just
plain better for making power with the 2.7T than the
little K03, or even the K04...

see ya,
Robby

--- Keman <keman at interwolf.net> wrote:
> Just a note-
> 
> There are a lot of ways that a turbo can fail. Folks
> say they "blow up" ..
> but there are much more details on how. These
> details point in directions
> away from the turbo and to other points of failure.
> 
> A hose can blow off partially, causing a boost
> leak.. making one turbo spin
> much faster than the other, stretching the blades
> out and contacting the
> housing, then creating a nasty siren sound and
> eventual destruction.
> 
> An intercooler can take a rock from in front,
> causing the above. Though it
> isn't likely because the path to them is crowded.
> 
> They can run too hot with the engine shut down too
> fast, causing crusted oil
> to build up in the drain tubes.. making lubrication
> next to impossible. Then
> the bearings fail and they sieze up.
> 
> They can run too hot with the engine shut down too
> fast, causing crusted oil
> to build up in the FEED lines, though this is
> unlikely .. and the same
> problem happens.
> 
> They can inhale foreign debris that gets by the air
> cleaner due to improper
> filter placement. It happens. Especially when people
> change their own air
> filter, biturbo airboxes are a bitch to pull apart
> and back together until
> you've done it a few times. Theres a lot of ways you
> can improperly close it
> leaving it open to the atmosphere. I've even seen
> mass airflow sensors just
> hanging there not touching the airbox. And guess
> what? The turbos whined so
> loud I swore the dash vibrated from it. This was
> just a week ago I saw this.
> 
> Then there can be manufacturing glitches. Those are
> extremely rare though,
> the turbos are tested before they leave. This is
> rocket science, and the
> tolorances are to 0.0001".
> 
> Theres the crappy 10k oil changes with dino oil.
> That certainly doesn't
> promote turbo life. Especially when it's hot out.
> 
> Theres the failed bypass valves. That hurts them
> too, and you know how often
> those can fail.
> 
> To sum it up, the turbos are rock solid. Even
> chipped. They're also the
> whipping boy when it comes to failures of any sort.
> Something goes wrong,
> and they overspin and fail. The ECM has no idea how
> fast the turbines
> actually rotate. It does know EGT though, with a
> seperate sensor on each
> side. Thus why audi turbo engines last hundreds of
> thousands of miles
> compared to say.. chrysler who had basically no
> engine management to speak
> of.
> 
> Just my 2 cents defending what otherwise is a damn
> solidly built turbo IMO.
> 
> - Keman
> 
> j y wrote:
> >> It's not a matter of "if" your stock turbos will
> blow...but
> >> "when"...so the "jinx" was ON..when u chipped the
> car @ 25k mi..make
> >> sure that your VISA/MC is in good standing. You
> will need
> >> it!....$5700 is about the avg price to replace
> K03s...best to go for
> >> K04s..when u have to pay for it..and your not
> splitting the bill
> >> with AOA.
> >>
> >> my K03s blew at 53k mi...STOCK...on my second
> set...will chip my Y2K
> >> S4 this summer..I expect the second set (of stock
> turbos) to blow up
> >> eventually..especially with the added stress of a
> chip.
> >>
> >>
> >> Marc Abernethy <mabernathy at lotteryusa.com> wrote:
> >> Love the APR chip. Rarely turn it to stock. I
> have a later model
> >> 2001.
> >> Put the chip in at 25K. I am at 66k with not one
> problem. How about
> >> that
> >> for jinxing myself. I am very careful with warm
> up and cool down.
> >>
> >> To switch programs is very easy. The car must be
> running but at
> >> idle. Just
> >> press and hold until the check engine light
> flashes to the program
> >> you want.
> >>
> >> Marc
> >>
> >>
> >> -----Original Message-----
> >> From: biturbos4-bounces at www.audifans.com
> >> [mailto:biturbos4-bounces at www.audifans.com] On
> Behalf Of Andy Turner
> >> Sent: Wednesday, February 04, 2004 6:17 AM
> >> To: biturbos4 at audifans.com
> >> Subject: [Biturbos4] APR Chip?
> >>
> >>
> >> Anyone got the APR chip?
> >>
> >>
> http://www.goapr.co.uk/products/ecu_upgrade_s4.html
> >>
> >> I want a chip, but I'm concerned about the extra
> stress on all other
> >> parts, even the clutch and tyres. So I like the
> idea of being able to
> >> switch it from one mode to another using the
> cruise control stalk.
> >> However, I'm just wondering how this operates.
> Can you just change
> >> progamming whilst sat at the lights, with the
> engine running? Or do
> >> you have to turn the engine off in order to
> switch?
> >>
> >>
> >> Cheers!
> >>
> >>
> >> andyt
> >>
> >> _______________________________________________
> >> Biturbos4 mailing list
> >> Biturbos4 at www.audifans.com
> >>
> http://www.audifans.com/mailman/listinfo/biturbos4
> >>
> >> _______________________________________________
> >> Biturbos4 mailing list
> >> Biturbos4 at www.audifans.com
> >>
> http://www.audifans.com/mailman/listinfo/biturbos4
> >>
> >> ---------------------------------
> >> Do you Yahoo!?
> >> Yahoo! Finance: Get your refund fast by filing
> online
> >> _______________________________________________
> >> Biturbos4 mailing list
> >> Biturbos4 at www.audifans.com
> >>
> http://www.audifans.com/mailman/listinfo/biturbos4
> 
> _______________________________________________
> Biturbos4 mailing list
> Biturbos4 at www.audifans.com
> http://www.audifans.com/mailman/listinfo/biturbos4

__________________________________
Do you Yahoo!?
Yahoo! Finance: Get your refund fast by filing online.
http://taxes.yahoo.com/filing.html