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100-mph Chaparral Project Update: Engine Dyno Runs Promising

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Old 04-12-2013, 09:10 AM
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Default 100-mph Chaparral Project Update: Engine Dyno Runs Promising

An update, http://speedonthewater.com/boat-rest...promising.html.

Have a fun and safe weekend on the water.
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Old 04-12-2013, 09:56 AM
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Originally Posted by Matt Trulio
An update, http://speedonthewater.com/boat-rest...promising.html.

Have a fun and safe weekend on the water.
Are they tuning the motor with marine exhaust or the headers in the picture ??????????
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Old 04-12-2013, 10:28 AM
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Originally Posted by 30ftpanther
Are they tuning the motor with marine exhaust or the headers in the picture ??????????
I honestly have no idea. I pulled the picture from 15-second video sent to me. I should have a better image later today.
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Old 04-12-2013, 10:31 AM
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Here's a better shot.
Attached Thumbnails 100-mph Chaparral Project Update: Engine Dyno Runs Promising-image.jpg  
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Old 04-12-2013, 10:50 AM
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Micro boat
small block
100mph
Sounds like some someone is going after ole Trilple Digits..
LOL...
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Old 04-12-2013, 11:09 AM
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Just for fun, I ran some numbers based on the previous performance data given in the first story.

The boat ran 72mph with a 144 cu supercharged small block. Approx. 400-420hp?? I'd guess the weight of this boat to be 3500lbs. This would yeild a C factor (hull efficiency) of 181 -Also a good friend did this same combo in the exact same boat with identical results.

With this data, my estimate with 650hp calculates to 90mph. To achieve 100 hp, it would take approximately 800hp.

Cool stuff, like the little boats too, looking forward to the results.

Kurt
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Old 04-12-2013, 12:08 PM
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Fred (White Racing Engines) builds a great, tough motor, so I wouldn't worry about that... but I sure wouldn't want to be around when he unleashes it in that boat!
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Old 04-12-2013, 12:54 PM
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Let's just hope the final update doesn't read - 100-mph Chaparral Project Update: Boat violently chine-walks, hooks, then barrel rolls during prop testing.
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Old 04-12-2013, 01:43 PM
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I think I read he's planning to run an Alpha drive, so chances are it will shred before he gets rolling fast enough to really hurt himself.
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