Offshoreonly.com - change from thru hull to drive water pick-up, speed ?

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ezstriper

07-15-2010 03:23 PM

change from thru hull to drive water pick-up, speed ?

somebody along the way installed a thru hull with a large bronze scoop/grate on my boat, no idea why, question is how much speed does that drag cost ? really considering going back thru std bravo drive ?? thanks Rob

smiklos@sunprint

07-15-2010 03:59 PM

Quote:

Originally Posted by ezstriper (Post 3159501)

It can be substantial.
Steve

Too Stroked

07-16-2010 06:02 AM

Quote:

Originally Posted by smiklos@sunprint (Post 3159539)

It can be substantial.
Steve

Agreed, but depends on how fast you're going. At 70 MPH in your boat for instance, it's probably less than 1 MPH. At over 100 MPH, it gets more significant in a hurry.

smiklos@sunprint

07-16-2010 07:05 AM

When I bought my Corsa it was a successful A class boat (Hog's Breath). We bolted a HP 500 in it winter of 1997 it went 73.4 MPH. We removed a pretty well done transom pickup and netted a 1.7 MPH increase. In the end the boat set the Kilo at 81.034 in Sarasota.
Sweat the little stuff!
Steve

smiklos@sunprint

07-16-2010 07:06 AM

The water going through the drive also helps cool the gear oil.
Steve

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