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Old 06-18-2019, 06:11 PM   #11
Scooby Newbie
Member#: 499928
Join Date: Apr 2019
Location: California
2015 WRX


Originally Posted by anarekist View Post
been researching ways to decrease engine bay temps too and came across this guy


uses the verus mustang louvers
Holy moly, those are HUGE. He def cut through that rib that reinforces the hood. I wonder how much that effects the hood rigidity. I wonder if it has more to do with how the hood crumples in an accident.

I'm struggling to understand how the louver size relates to cooling. Part of me wants to say, larger = better, but the other half of me thinks that smaller = faster flow.

If the pressure differential is the same. IE underhood pressure to above hood pressure is the same differential, say 20 psi. I want to say that a smaller hole would have a higher velocity. I think this is Bernoulli's Principle.

Now is the net net cooling effect the same? No clue.

Originally Posted by Scuby04STi View Post
Have you guys taken off the rear hood seal? I removed mine years ago on my '04 and have never had engine related temp issues.
Didn't think of this. I gotta go look at the hood and see if there is a seal there. I'll report back.

Originally Posted by mike-s24 View Post
awesome build. nice work
RacecarWRX is offline   Reply With Quote

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