[urq] intake air temperatures

[Ado Sigal]

What I did, was to shroud the IC from the top and 
sides, with close cell sponge at the bottom. Fresh 
air is diverted to the air box intake via tube and 
set of plastic elbows. Turbo, down pipe, air box, 
electrics, IM, and surrounding body is shrouded in 
alloy sandwich plates that come from mainly BMW 
exhaust-petrol tank temp protection. I also used 
same, to cover the space behind EM, which prevents 
any heat soak from EM or WG to the block, all the 
fuel lines to, and can tell you that the difference 
is remarkable. Oil temp on fast motorway run has 
dropped by 20?C, and don't get temp associated ECU 
retard in traffic, which was previously the case. If 
anyone wants the pics contact me off line.

Ado

Daryn Baker wrote:

> Has anybody on this list been daring enough to try liquid CO2 cooling
> for the intercooler? I know the systems are available, but not sure
> where one would mount the cylinder......not practical for an everyday
> driver, but maybe for you racing folks?
>  
> Daryn
> 
> 
>>>>"Brandon Rogers" <brogers at terrix.com> 3/22/04 9:43:49 AM >>>
>>>>
> 
> Bill and all-
> Don't you have Aqua Mist or something?  Shouldn't that lower intake
> temps?
> 
> I'm not monitoring my intale temps...but I'm sure they're too high.
> Ignorance is bliss......
> 
> But, that said, I still often think about ducting fresh air into the
> airbox,
> and applying some heat reflective tape to intake parts, such as the
> pressure
> pipe on my 3B, that it could benefit.
> 
> Also, my front valence is damaged, but totally useable so I will soon
> be
> cutting a third hole in front of the IC to increase airflow on the IC. 
> I
> can't believe that won't help. It seems all the latest hot rod turbo
> cars
> (Evo, etc) have big IC's that are really exposed to fresh air.  IMO,
> with
> the WX IC, ducting becomes crucial, something Audi improved on the
> later
> cars with a little shield above the IC and a little rubber thingy
> (tech
> term) on the outside in between the IC and valence, kepping air from
> going
> around.  These things just have to lower intake temps. I believe the
> urq was
> the first turbo Audi to use an IC, so now we know much more that they
> did
> back then - to keep the original setup is leaving performance on the
> table,
> so to speak....
> 
> Because you have a temp sensor, maybe you could do some of these
> improvements and documemt intake temp changes.
> 
> Do it for the team!
> 
> Brandon
> 
> 
> ----- Original Message ----- 
> From: "Bill Bennett" <ur.quattro at verizon.net>
> To: <urq at audifans.com>
> Sent: Saturday, March 20, 2004 10:54 PM
> Subject: [urq] intake air temperatures
> 
> 
> any one checking them besides me? the temperatures my bitch gets,
> horrible
> would be a good word after one acceleration event to 90 mph,(160 inlet
> temp)
> or prolonged idling I am gonna slide a heat shield between the turbo
> and the
> intake air box tommorrow to see if a simple heat sheild will help as
> my
> "suction hood" gets hotter than hell when driving. Bill
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