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<p>re: "...On a similar thread has anyone used the cold vent air to
bring cooler air to the carb intake area when cruising ? Results
?"</p>
<p>There's a long thread on ahexp.com on this topic. It's for 100s,
but should be applicable to 6-cyl cars as well. Here's one
fellow's solution:</p>
<p><a class="moz-txt-link-freetext" href="http://www.ahexp.com/phorum/read.php?4,186244,page=5">http://www.ahexp.com/phorum/read.php?4,186244,page=5</a></p>
<p>Bob<br>
</p>
<br>
<div class="moz-cite-prefix">On 9/4/2017 7:13 AM, Roger Grace wrote:<br>
</div>
<blockquote type="cite"
cite="mid:297E23C54BE0484892950BB052CAC756@WINDOWST93OFP9">
<div dir="ltr">
<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS';
COLOR: #000000">
<div>My BJ8 seems to perform better with the increased O2 of
lower</div>
<div>ambient temps in the evenings and mornings. There even
seem to be fewer </div>
<div>rattles squeaks and groans too !</div>
<div>I have an oil cooler, electric rad. fan oil temp gauge
and standard rad.</div>
<div>Whenever I spend more than say 20 mins in traffic after
the engine oil is</div>
<div>already up to temp, the idling is impacted due to what
must be due to </div>
<div>increased engine compartment air temp, and the HD8
mixture becoming too rich for that</div>
<div>ambient.</div>
<div>So I decided to do some crude testing, and installed a
temp. pick up near</div>
<div>the rear carb intake.</div>
<div> </div>
<div>In an ambient of around 85F and sustained cruising at
around 60 MPH – elec.</div>
<div>rad fan off</div>
<div>Water is 190F</div>
<div>Oil is 165- 170F</div>
<div>Engine compartment is around 130F</div>
<div> </div>
<div>At same ambient and elec. fan now on and after 25 mins
idling in traffic</div>
<div>Water is 200F</div>
<div>Oil is 180 F</div>
<div>Engine compartment is over 155F and idling has to be
nursed to avoid</div>
<div>stalling. This must be a build up of exhaust heat with no
exit path.</div>
<div> </div>
<div>Have tried to compromise with mixture settings but not
yet found a sweet </div>
<div>spot.</div>
<div>So l was wondering if anyone has tried to improve engine
compartment venting </div>
<div>and how ?</div>
<div>Assume this why some cars have louvers on hood or side of
car.</div>
<div>Ideas comments welcome.</div>
<div> </div>
<div>On a similar thread has anyone used the cold vent air to
bring cooler air to </div>
<div>the carb intake area when cruising ? Results ?</div>
<div> </div>
<div>rg </div>
</div>
</div>
<br>
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</pre>
</blockquote>
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