Josh, maybe they are figuring that if the coolant contiunes to take heat away, the turbo(s) won't maintain super high temperatures long enough to actually cook the oil? Personally, and this is only my opinion, but I think Turbo Timers are a waste of money. If you have $100 laying around and can't find anything else to spend it on, then fine, but I have no problem sitting in the car a few moments before shutting it off while things cool down. Especially today with synthetic oil which would probably need "atom-splitting" temperatures for it to cook, if I'm on the boost hard, I usually just drive around for a few minutes under no boost at all, then park and wait 30 seconds to a minute of so. I would much rather invest in synthectic oil then a Turbo Timer. There's just something about leaving your pride and joy's engine running while your not there that has me somewhat uneasy. But back to the topic, at least Audi took this into account when designing their system. If your uncle doesn't use synthetic, I'd still wait a few moments if I were him though.
-Matt
-----Original Message-----
From: Josh Colombo < jcc189@psu.edu>
To: bc-bflegacyworks@egroups.com < bc-bflegacyworks@egroups.com>
Date: Saturday, September 30, 2000 91 PM
Subject: [BC-BFLegacyWorks] Different Approach to Turbo cool down
Just thought I'd run this by you guys, see what you think.
My uncle just bought a new Audi, A6 2.7 Bi-turbo. Before he bought it I mentioned something to him about a turbo timer to prolong the life of the turbos. Well he mentioned something to one of the East Coast reps, and sparked their interest. So they contacted the engineers in Germany.
It turns out that there is separate water jackets that run through the turbo, as well as the oil. There is an electric pump that continues to circulate coolant around in the turbos. This sounds like a good idea. The only thing I'm not sure of, or question is the bearings. Yes there is water cooling around the bearings, but the oil is in direct contact with bearings not the water. So if you are really driving the piss out of the car, and then stop I would still believe there is a chance for you to cook the oil around the bearings. I don't have a blue print of the cooling system or shit like that so I can't make a 100% analysis of the system, but I guess if the engineers says it's ok.....it's PROBABLY alright, but not necessarily full proof.
Thoughts comments?
Josh
************************
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Different Approach to Turbo cool down
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Josh Colombo
Different Approach to Turbo cool down
Just thought I'd run this by you guys, see what you think.
My uncle just bought a new Audi, A6 2.7 Bi-turbo. Before he bought it I mentioned something to him about a turbo timer to prolong the life of the turbos. Well he mentioned something to one of the East Coast reps, and sparked their interest. So they contacted the engineers in Germany.
It turns out that there is separate water jackets that run through the turbo, as well as the oil. There is an electric pump that continues to circulate coolant around in the turbos. This sounds like a good idea. The only thing I'm not sure of, or question is the bearings. Yes there is water cooling around the bearings, but the oil is in direct contact with bearings not the water. So if you are really driving the piss out of the car, and then stop I would still believe there is a chance for you to cook the oil around the bearings. I don't have a blue print of the cooling system or shit like that so I can't make a 100% analysis of the system, but I guess if the engineers says it's ok.....it's PROBABLY alright, but not necessarily full proof.
Thoughts comments?
Josh
************************
Josh Colombo
jcc189@psu.edu
************************
To unsubscribe from this group, send an email to:
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My uncle just bought a new Audi, A6 2.7 Bi-turbo. Before he bought it I mentioned something to him about a turbo timer to prolong the life of the turbos. Well he mentioned something to one of the East Coast reps, and sparked their interest. So they contacted the engineers in Germany.
It turns out that there is separate water jackets that run through the turbo, as well as the oil. There is an electric pump that continues to circulate coolant around in the turbos. This sounds like a good idea. The only thing I'm not sure of, or question is the bearings. Yes there is water cooling around the bearings, but the oil is in direct contact with bearings not the water. So if you are really driving the piss out of the car, and then stop I would still believe there is a chance for you to cook the oil around the bearings. I don't have a blue print of the cooling system or shit like that so I can't make a 100% analysis of the system, but I guess if the engineers says it's ok.....it's PROBABLY alright, but not necessarily full proof.
Thoughts comments?
Josh
************************
Josh Colombo
jcc189@psu.edu
************************
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Dave aka DLC/dackampf
Different Approach to Turbo cool down
Sounds like Audi is trying to "idiot-proof" the car for the everyman
so he doesn't fry the thing. While that's a great idea, it's still
going to leave the oil very warm and exposed to the incredibly hot
bearings in the turbo.
FYI, the Legacy Turbo has a convection-driven system like that.
While not quite as effective, i'm sure it helps.
My advce to your uncle is to let it cool down for 30-90 seconds
after hard driving, just to be safe. And tell him congrats on a
kick-ass car!
D
--- In BC-BFLegacyWorks@egroups.com, "Josh Colombo"
<jcc189@p...> wrote:
> Just thought I'd run this by you guys, see what you think.
>
> My uncle just bought a new Audi, A6 2.7 Bi-turbo. Before he
bought it I
> mentioned something to him about a turbo timer to prolong the
life of the
> turbos. Well he mentioned something to one of the East Coast
reps, and
> sparked their interest. So they contacted the engineers in
Germany.
>
> It turns out that there is separate water jackets that run through
the
> turbo, as well as the oil. There is an electric pump that
continues to
> circulate coolant around in the turbos. This sounds like a good
idea. The
> only thing I'm not sure of, or question is the bearings. Yes
there is water
> cooling around the bearings, but the oil is in direct contact with
bearings
> not the water. So if you are really driving the piss out of the
car,
and
> then stop I would still believe there is a chance for you to cook
the oil
> around the bearings. I don't have a blue print of the cooling
system or
> shit like that so I can't make a 100% analysis of the system, but
I guess if
> the engineers says it's ok.....it's PROBABLY alright, but not
necessarily
> full proof.
>
> Thoughts comments?
>
> Josh
> ************************
> Josh Colombo
> jcc189@p...
> ************************
To unsubscribe from this group, send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com
so he doesn't fry the thing. While that's a great idea, it's still
going to leave the oil very warm and exposed to the incredibly hot
bearings in the turbo.
FYI, the Legacy Turbo has a convection-driven system like that.
While not quite as effective, i'm sure it helps.
My advce to your uncle is to let it cool down for 30-90 seconds
after hard driving, just to be safe. And tell him congrats on a
kick-ass car!
D
--- In BC-BFLegacyWorks@egroups.com, "Josh Colombo"
<jcc189@p...> wrote:
> Just thought I'd run this by you guys, see what you think.
>
> My uncle just bought a new Audi, A6 2.7 Bi-turbo. Before he
bought it I
> mentioned something to him about a turbo timer to prolong the
life of the
> turbos. Well he mentioned something to one of the East Coast
reps, and
> sparked their interest. So they contacted the engineers in
Germany.
>
> It turns out that there is separate water jackets that run through
the
> turbo, as well as the oil. There is an electric pump that
continues to
> circulate coolant around in the turbos. This sounds like a good
idea. The
> only thing I'm not sure of, or question is the bearings. Yes
there is water
> cooling around the bearings, but the oil is in direct contact with
bearings
> not the water. So if you are really driving the piss out of the
car,
and
> then stop I would still believe there is a chance for you to cook
the oil
> around the bearings. I don't have a blue print of the cooling
system or
> shit like that so I can't make a 100% analysis of the system, but
I guess if
> the engineers says it's ok.....it's PROBABLY alright, but not
necessarily
> full proof.
>
> Thoughts comments?
>
> Josh
> ************************
> Josh Colombo
> jcc189@p...
> ************************
To unsubscribe from this group, send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com
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jason grahn
Different Approach to Turbo cool down
Don't know if i'm late on this one or not, BUT....
So if you are really driving the piss out of the car, and
>then stop I would still believe there is a chance for you to cook the oil
>around the bearings.
I believe that's exactly what happens with most turbo cars after they're
driven hard and not given a proper cool-down time...
I had a friend with a 1993 RX-7, and after doing 135 mph, the turbos were
GLOWING orange. we let it cool down for about 5 minutes before they changed
back to a normal color, and then another 5 minutes just to make sure that
everything was okay.
By the way, anyone have any info about turning a stock shifting assembly
into a short throw assembly?
Jason
1990 Legacy LS AWD
SPT = Stock Parts Tweaking
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So if you are really driving the piss out of the car, and
>then stop I would still believe there is a chance for you to cook the oil
>around the bearings.
I believe that's exactly what happens with most turbo cars after they're
driven hard and not given a proper cool-down time...
I had a friend with a 1993 RX-7, and after doing 135 mph, the turbos were
GLOWING orange. we let it cool down for about 5 minutes before they changed
back to a normal color, and then another 5 minutes just to make sure that
everything was okay.
By the way, anyone have any info about turning a stock shifting assembly
into a short throw assembly?
Jason
1990 Legacy LS AWD
SPT = Stock Parts Tweaking
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
Share information about yourself, create your own public profile at
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