Thread: Fast Fred's OMC Mod 50 secrets Thread #2

  1. #851
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    Quote Originally Posted by smixon14 View Post
    Just out of curiosity... what would i be searching for if i wanted to use the 4 over 4 or 5 over 5 reed block front half on a 56ci? Converting my motor to EFI via microsquirt and im not racing so im not tied to any rules or regs.
    Nice project
    I have started on a microsquirt project on a v4 looper.

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    Xpress2830 Xpress2830's Avatar
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    Anyone use Ficht or V4 reed cages in the omc 50 twins??

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    Wiseco forged replacement OMC 49.9 Mod-50 pistons are now available. They are improved versions of the #10908 previously supplied by the late Phil McDaniel. Designed for use with the Mod-50 or RD-series (40HP) “long” con rod, these pistons include a .120” top ring land, pre-machined boost and finger ports, plus hard anodized pin bores and fire dome. Each piston kit includes wrist pin & retainer clips and steel keystone rings. Size offerings include standard (3.000” bore), +.020”, +.030”, +.040”, and now +.050” oversize. Pricing is $135 each.

    Taking orders now. Please reply with your request. Thanks,

    Tim
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  4. #854
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    .050 over cool, that mite work

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  5. #855
    Xpress2830 Xpress2830's Avatar
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    Default Velocity stacks

    Good morning guys. Looking for a set of velocity stacks for a 95 OMC 50 twin. Thanks, Bobby..

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    Quote Originally Posted by Xpress2830 View Post
    Good morning guys. Looking for a set of velocity stacks for a 95 OMC 50 twin. Thanks, Bobby..

    Hey Xpress2830,

    New CNC turned with fasteners for $55 each plus $6 for a USPS flat rate box. Email tkurcz123 at gmail.com[/QUOTE]

    Tim

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    Breaking news: +.065” oversize Mod-50 replacement pistons now available!

    Wiseco just approved manufacture of +.065” oversize pistons for the 49.7 CI OMC loop triple. This means you can breathe new life into run-out or damaged +.040” blocks, creating a 51.9 CI monster! Bore sizes now available include: Standard, +.020”, +.030”, +.040”, +.050” and +.065”. Notes:

    1) The +0.065” piston is legal for APBA 850cc Mod and NBRA Super-E classes which share a maximum +0.070” bore size. Minor file fitting of +.065” piston rings required.
    2) Pistons require use of OMC Mod-50 (3/4” pin bore) or RD-Series 40 HP (5/8” pin bore) “long” connecting rods. “Skinny needle” wrist pin bearing conversion kits are required for the 5/8” pin bore RD-Series 40 HP connecting rods.
    3) The Mod-50 replacement piston includes a flat top fire dome design that requires use of the 70 HP service cylinder head with pocket style combustion chambers.

    Commitments through June 1 will be at the introductory price of $135/piston kit which includes the Wiseco forged aluminum piston with hard coat anodized pin bores & fire dome, wrist pin & retaining clips, and semi-keystone steel piston rings. So don’t delay; place your order now!

    Best of luck with your engine projects,

    Tim

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    Xpress2830 Xpress2830's Avatar
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    Hey guys looks like some good work here. Im looking for some educated advice for a 95 OMC 50 Twin mods. Thanks

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    Sam Cullis Mark75H's Avatar
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    Nobody ever got more power than Anthony McC.
    Since 1925, about 150 different racing outboards have been made.

    Thanks Xpress2830, Ron Hill thanked for this post
    Likes Ron Hill liked this post

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    Some one was bumping my mail box, best to catch me hear ..... over

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

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