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<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></BODY></HTML>