If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Follow us on Facebook Follow us on Twitter
Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25
  1. #21
    Official OSO boat whore Charter Member
    My Boats:
    8' row boat
    Join Date
    Oct 2000
    Mequon, WI

    Re: General Motors tried it:

    Originally posted by wannabe
    Back in the days when GM was trying wankel (rotary) engines (mid 70's) before they abandoned them, they had a custom built Donzi 28 CC with two 4 rotor wankels tied to Mercruiser outdrives. The thing went like stink, the motors took up hardly any room, and used about the same amount of gas as v8's. I know, I drove the boat.

    Then GM scrapped the wankel program and EVERY motor that was built was pulled in and scrapped. There may be one surviving block somewhere in Warren, mich.

    They replaced the rotaries with twin Merc 188's based off of the 302 Ford v8. They had to increase the size of the engine cover hatch, lost 10 mph top speed (weight), and the 188's were a DOG of an engine (no response).

    The boat was named the "pflueger fun", Pflueger made fishing tackle.

    Rotaries are light weight and have great power/weight ratios. They are dirty from an emmissions standpoint and that's what killed them from the Automotive market. Mazda only produces the RX8 for it's unique marketing of the wankel. They are not practical and are expensive with the emmission requirements of today. Otherwise everyone would be building them.

    The Wankel has the ability to be marinized and I think would be great in personal watercraft and lighter smaller boats. You can tune them to make the all the power that would be needed at 6000 rpm or less.

    Wannabe in Motor City
    (OSO's peudo automotive historian)
    This is really nit-picky, but I believe the 188 was based off the 460. Like I said, pretty nit-picky.

  2. #22
    Gold Member Gold Member Iggy's Avatar
    My Boats:
    '88 Formula F-206 LS
    Join Date
    Jan 2001
    Kissimmee, Florida
    There was an add in a magazene a while bach advertising a marinized rotary. I'll try to look for it.

  3. #23
    Were doomed! Charter Member Wally's Avatar
    My Boats:
    Chris Craft Stinger 222
    Join Date
    Oct 2000
    Chicago, IL
    I dont remember when, but i saw something on TV a long time back about rotary's....they said the engines have unlimited rpm potetioal due to the fact the have no valves to float or anythign liek that! Would be cool for marine but it still woudl be limited by gearing in the drives

    Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!

  4. #24
    Mike J
    When the R&D work was being done in ventura Rotory Marine
    was located in Seattle Wash.
    And Mazda North America is in
    the Irvine CA. area.
    I have a number of photos of
    Mr. Kobayakawa Pres. of Mazda
    riding in a Rotory powered
    Scarib at Ventura Harbor with
    Warren Robbins VP Scarab and Scarib doing the driving.
    Mike J.

  5. #25
    Platinum Member Platinum Member mcollinstn's Avatar
    My Boats:
    1991 F311SR1
    Join Date
    Sep 2001

    Yep, 170/188 Mercruiser was half of a 460.
    I see London, I see France...

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Sterling engines- A work of art!
    By LubeJobs42 in forum General Boating Discussion
    Replies: 33
    Last Post: 05-23-2007, 05:23 PM
  2. Rotary Engines
    By BY U BOY in forum General Boating Discussion
    Replies: 18
    Last Post: 09-07-2006, 01:15 PM
  3. Turbo Rotary powered boat (video)
    By Fanatic in forum General Boating Discussion
    Replies: 13
    Last Post: 02-26-2006, 02:13 PM
  4. Check this out...Rotary Engine Boat!!
    By gotime34 in forum General Boating Discussion
    Replies: 4
    Last Post: 04-25-2005, 09:59 PM
  5. Rotary power???
    By Stormrider in forum General Boating Discussion
    Replies: 3
    Last Post: 03-13-2003, 08:16 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
All times are GMT -5. The time now is 06:35 AM.
Powered by vBulletin® Version 4.2.0
Copyright © 2016 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1
Original Poster In Postbit provided by Original Poster In Postbit v1.0.0 (Free) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.