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Scoop Mounting Question

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Old 09-30-2007, 12:12 AM
  #11
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I know that in cars, the "ram air" effect does not start until 100+ mph. Before that, its just cold air induction.

I would say as long as you have cool air flooding the engine compartment you will be fine. I'm not sure if there is much of a gain past 100 either. Someone else here should know, and you can calculate it pretty easy also if you wanted to see how much pressure difference you would get.
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Old 09-30-2007, 01:35 AM
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I've built a new hatch with two scoops for my old boat. The scoops were locally made [ similar to Harwoods ] and I cut them down for low profile look. Cut the ends off too , so the air flows right through .I have stainless screens in the intake and the rear oulet to keep any critters out . The ambient temperature is at least 20 degrees cooler in the engine bay now.Here are some pictures .


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Old 09-30-2007, 01:53 AM
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We have a ZZ 572 in my friend's boat we put together 2 years ago . The engine is covered with an engine box inside the enclosed cabin .
We've installed a similar scoop on top of the cabin and air directed thruogh a duct .The temperature is a constant 72 degrees inside the engine bay at WOT .

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Old 09-30-2007, 08:58 AM
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WHAT kind of boat is that?? I love the headers and the teak...
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Old 09-30-2007, 01:14 PM
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Quote:
Originally Posted by Scott B View Post
WHAT kind of boat is that?? I love the headers and the teak...


A one of kind , not for production. . My friend built the entire boat in 3 yrs, including the mold . He destroyed the mold afterwards. The boat is 33' , foam cored hull and weighs at 6000 lbs rigged . We had her up to 65 mph on GPS .
He's in the process of painting the hull sides blue and some simple trim colour. The wood inside is actually mahogany , and the headers are dry Stellings . He did the inside finishing on 'Status Quo' when he worked for Sovereign [ now Richmond Yachts] http://www.richmondyachts.com/gallery.html
I've been on 'Sun Chaser' to check it out while it was being finished, and it's one nice yacht too .
Here's a test run of Craig's boat from 2 yrs ago http://media.putfile.com/Craig-pushes-the-stick

Last edited by spectras only; 09-30-2007 at 04:03 PM.
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