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Old 10-20-2012, 02:35 AM   #23 (permalink)
oil pan 4
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Quote:
Originally Posted by JackMcCornack View Post
I sealed off my engine compartment and put the air intake in side with the engine, it's good for +75 degrees F (my car is a turbo diesel so YMMV).
Did you test it?
Diesels tend to lose power and fuel economy with warm air intakes.

Diesels seem to like their air intake temperatures at the manifold between 30F to 120F.
Below 30F and it seems to delay fuel ignition and above 120 and you cant pack enough air into the cylinders.

Every +1 degree C or F increase in intake temperatuers increases EGTs by that amount, so you are running 75 degree higher EGTs than nessary for no reason.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
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