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Old 06-18-2008, 08:51 AM   #9 (permalink)
rocket
EcoModding Lurker
 
Join Date: Apr 2008
Location: Colchester, CT
Posts: 38

POS - '97 Ford Aspire
90 day: 47 mpg (US)
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Quote:
Originally Posted by lunarhighway View Post
the problem with conventional radiator setups is they are set up to provide enough cooling under all circomstances. for exmample very slow moveing traffic on a hot day. under most driveing situations it's to big, and sometimes , when the engine is not warmed up for example or in cold weather no airflow is needed.
The radiator has no influance in how fast the engine warms up; the thermostat is closed until the coolant reaches ~180 (i know each engine is different, but usually 160-190F). Coolant will not reach the radiator until the thermostat opens (when the engine is warm)


Quote:
Originally Posted by thecorrupterx View Post
could you also take the vent gas from the radiator vent you suggested and make it exit at the top/back of the hood, vented to move smoothly up and over the windshield. would this remove anything from the drag coefficient or would it have negative impact. I guess it boils down to how it is executed.
It would not vent there: at the base of the windshield is a higher pressure area (bubble, like the bed of a truck) (thats how cowl induction works). running a vent would just cause the air to flow from the cowl to the engine bay, changing the current air flow path (for worse )
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