Technical Specs

Materials List:

All Drive Shower components are made from 316 Stainless Steel. The dimensions of
the tube are: .500 OD and .400 ID (.050 wall thickness), pick-up port hole dia. is .400

The mounting hardware consists of a 3/8 dia. X 16 (course  thread) hex headed SST
bolt and spacer The two washers that are used to protect the paint on the cavitation
plate are made of nylon Your installation kit will also include a template to locate the
two 1/2 inch dia. holes that must be drill in the cavitation plate.

How much cooling water does your system supply?

The mathematical formula for the water volume for our dual pick-up system with a
.400 I.D. tube is:

Tube Capacity:

Pi (3.141593) x Rad(sq.) = 3.141593 x .200(sq.)
or 3.141593 x .04 = .125664
.125664 x 2 (2 pick-up ports) = .251327(sq. in.) tube dia. capacity

Water flow:

5280 ft./mi. or 5280*12  = 63,360(in/mi.) at 1 mph
63360(in./at 1 mi./hr.)  x .251327(sq.in.) = 15924(qb.in./hr.at 1 mph)
15924(qb.in./hr.) / 200  (qb. in./gal.) = 79.6(gals./hr.) at 1 mph

At  40 mph .  79.6(gals./hr.) x 40 = 3185 gal./hr. or 53 gals./min. or .9 gal./sec.

At 40 mph., the Multiport  Drive Shower® is supplying cooling water to the top half of
your drive at a rate that is approximately four times the flow of your bath tub
faucet. This is what it looks like

About Us: Simrek Corporation specializes in external stern drive cooling systems for your high performance or pleasure boating needs. Composed of high-grade  stainless steel, the Simrek Multiport Drive Shower® can add years of life to your Alpha and Bravo drives

Copyright © 1999-2007 Simrek Corporation, 137 Pacer Drive, Henrietta, NY 14467
E-mail:simrek@driveshowers.com   Phone: 585-334-0531 
Simrek Multiport Drive Shower® is a Registered Trademark by Simrek Corporation.
90 Degree Pick-Up Ports US Patent number 6,241,566 Issue Date June 6, 2001.