Lot of genius on display in the picture of that old CVCCs engine bay. With anything car related, you can usually put yourself on the right path by simply asking the question "what would honda do?" Theyre the world's leading engine manufacturer for a reason. Do you honestly think that some dip shit kid thought of something that honda didnt?? do you really believe that? do you think Honda engineers are reading this thread right now and saying " OMG!!!! an opening in the back of the hood! why we no think of this?!?!?!"

The only thing that matters when it comes to cooling your engine is water and oil.... most specifically, water. Your engine is not air cooled. Reducing your under hood temps to cool your intake charge is about as effective as filling up a swimming pool by pissing in it. The only place you need air to flow is through your radiator. If you want to do more to cool your engine.... get a better radiator or better fan for your radiator. If you want to do even more to cool your engine? better or bigger oil pan or oil cooler. Your engine cools from the inside out....... do you really think some air blowing on the outside of your engine has that great of an effect on it's operating temperature?




On an air cooled engine the push rods are located outside of the engine and the surface area of the head is increased with fins. The emphasis in the design is placed on oil cooling..... from the inside out.................... reducing the surface temperature of your engine has little effect on the inside of it. How cool would the air hitting the outside of your block have to be to have a significant impact on the temperature of your cylinder walls? think about it.






If something so simple to accomplish needed to be done. Honda would do it. Honda is smarter than you.