On Apr 13, 2013, at 9:32 AM, Rob <vwrobb@GMAIL.COM> wrote:

At  4/13/2013 07:46 AM, Tim Whynot wrote:
> I have these exact airscoops on my Westy. I made them from the HD cement
> mixing trays. In my opinion these do work at getting more cooler air air
> to the engine compartment. You can see the temp sensor drop qiuckly whne
> getting on the highway and up to speed.

You had over temp problems before you put the scoops on and they helped?
(We're talking water temps right? You don't have an oil temp gauge
for the engine?)

Since I installed the Scan Gauge along with the first Subie conversion, I had
no prior info about the temp of the intake air (Syncro, snorkel up L "D" Pillar)
but since those installs (first: 2.2; 2nd: 3.0) I know now that the intake air temp
at the sensor just above the throttle body, is a few degrees above the environmental
ambient, which I'm SURE is quite a bit cooler all the time, than the air inside 
the engine bay. Although that (snorkel) has no bearing on engine coolant and
oil temps, as far as I "know", it likely does have a bearing on engine performance
due to the cooler intake air, and that in turn, may have a bearing on a cooler
block?...i.e., coolant and oil temps.

Shortly after buying this van ('02), I put a SETRAB oil cooler w/fan, in the R
"D" pillar base, and noticed a 15 degree oil temp drop.

Bob