Friday, March 20, 2015

[Electric Boats] OMC Zephyr Saildrive Conversion

 

We have an 26' S2 8.0...21.5 ft. wl, 4600 lb. disp. with an OMC Saildrive. We've unbolted the power head and ordered a conversion kit from EVDrives which includes a Motenergy ME 1004 (6.4 kw continuous @ 48V, 16 kw for 1 minute @ 48v) and an Alltrax SPM 484000 controller. We're going to power it with 6 of US Battery's 8vgc deep cycles and a Delta-Q charger (912-4800 also from EVDrives).

We're having a motor mount fabricated consisting of an aluminum plate bolting on the mounting surface of the saildrive, risers holding another plate several inches above to which the new motor bolts shaft down. Because the RPMs of the electric motor don't exceed the old OMC's power head, we are going to directly couple the two shafts. Because the old saildrive seems to shift fairly smoothly we are going use the existing throttle/shift lever already in the cockpit. (Using a PB6 throttle also from EV)

Looks like we'll have about $2,200-2,300 invested by the time we get the wiring harness made up and a few new switches.

So, a couple of things...If anyone can see anything we've overlooked or has some suggestions, we'd welcome your input.

Richard

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Posted by: RichardTwillman@gmail.com
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