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Well - er -
OK..:-) Not being a thermal physicist or anything - I'm
guessing that what I'm seeing in better cooling efficiency
for a couple of reasons - the primary one keeping heat away
from the valve covers, which are excellent thermal
conductors back to the oil and top end of the engine. What I
do notice is a slight drop in overall oil temps on the
street, as well as the engine stays pegged at 180-185 deg.
longer even on "spirited" highway drives. My setup on the
914-6 is a 3.0, Webers, Vellios engine center mount from
PelicanParts, and an external 930 cooler mounted in the
front trunk (now that's a BIG COOLER!!) - all running on 13
qts of Mobil 1."
"First of
all - the engine MUST be mounted DEAD CENTER of the car - if
the center mount is off by 1/16" of an inch - then the
HeatSheet probably will not fit as they will come very close
to the inner trailing arm mount point as it is. With the 930
covers - this becomes even more critical. For my car - which
is primarily a track car - I did notch the HeatSheet on the
right top side flange of the engine by 1/4" so I have 1/2"
clearance between the top of the HeatSheet and that same
trailing arm mount point - just to be on the "safe side".
The left side of the engine was fine (as the joy's of
hand-built cars by the factory where there are minor
differences in building specs:-)"
Hope this
helps!
J.
D.
"I have a set of these radiant heat blockers on my 914-6
conversion, and they do indeed provide an additional heat
sink prior to the engine. At VIR (Virginia Int'l Raceway)
two weeks ago, my engine temp NEVER rose above 185 F. This
is in direct correlation to 3 weeks prior at Summit Point
(on very cold days) where I saw temps of 210 dF. Not saying
these shields are an additional cooler, just an additional
heat sink prior to the heat invading the engine. Wonder why
it took so long for someone to develop these (and wondering
why I didn't think of it first. . .)?"
D.N.
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