Engine cover
06-30-2005, 09:22 PM
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Engine cover
I hope this wasn't covered before, but I was wondering how much heat that engine cover we have traps it in. I'm not saying that removing it and having the hood right there would make a big difference but I was wondering if anyone removed it to help air out the engine bay area.
06-30-2005, 09:29 PM
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The engine cover actually HELPS keep the heat down. It's meant to direct air over components and to help exhaust the air out those side vents behind the fenders. Somebody did a temperature measure a while back and found that the temperature increased by a few degrees under the hood with the cover off. Personally I doubt it's a life and death difference, as I've installed the Mazdaspeed strut bar and have to leave the cover off. Car hasn't run any differently since.
06-30-2005, 09:54 PM
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Originally Posted by Vertigo-1
The engine cover actually HELPS keep the heat down. It's meant to direct air over components and to help exhaust the air out those side vents behind the fenders. Somebody did a temperature measure a while back and found that the temperature increased by a few degrees under the hood with the cover off. Personally I doubt it's a life and death difference, as I've installed the Mazdaspeed strut bar and have to leave the cover off. Car hasn't run any differently since.
I saw a post where someone retrofitted the cover to fit over the MS strut tower.
06-30-2005, 10:12 PM
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Originally Posted by Vertigo-1
The engine cover actually HELPS keep the heat down. It's meant to direct air over components and to help exhaust the air out those side vents behind the fenders. Somebody did a temperature measure a while back and found that the temperature increased by a few degrees under the hood with the cover off. Personally I doubt it's a life and death difference, as I've installed the Mazdaspeed strut bar and have to leave the cover off. Car hasn't run any differently since.
those vents are cooling ducts for the oil coolers, which are in the "scoops" behind the fog lights. are the ducts also open to the interior of the engine bay?
06-30-2005, 10:32 PM
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Assuming the specific heat of the plastic cover isn't insanely different from that of carbon fiber, the carbon fiber replacement cover should stay just as functional (air ducting wise) as the plastic piece, right?
07-01-2005, 12:03 AM
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Originally Posted by _Michael
Assuming the specific heat of the plastic cover isn't insanely different from that of carbon fiber, the carbon fiber replacement cover should stay just as functional (air ducting wise) as the plastic piece, right?
07-01-2005, 12:35 AM
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i keep the cover off because i can hear more engine noise. i thot it would reduce heat but i guess according to the above post it is functional in cooling down the engine somewhat.
07-01-2005, 10:06 AM
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The side vents in the RX-8 vent the engine compartment. In the 3rd gen RX-7 they were for the oil cooler(s). The RX-8 oil coolers vent underneath the car.
One of the first things I looked at on the car ;-).
The engine cover does help underhood airflow. As it's rather light, I'd leave it on, even though it doesn't make a big difference. It helps hide all the ugly black "stuff" that isn't engine.
One of the first things I looked at on the car ;-).
The engine cover does help underhood airflow. As it's rather light, I'd leave it on, even though it doesn't make a big difference. It helps hide all the ugly black "stuff" that isn't engine.
Last edited by RX-8 friend; 07-01-2005 at 10:08 AM.
07-02-2005, 07:02 PM
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Originally Posted by salituro64
I saw a post where someone retrofitted the cover to fit over the MS strut tower.
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