lookin for a set of them by the way, unmolested
hear we have OMC Mod50 "straight in" number 300
it's in "as raced" condition, this bein a race moda, Only one piston fits it, thare were No over sizes, 3.030" was it
so once a bore wore out, it was time for a new sleeve or new case set.
lookin at the bores of number 300, gota say the thing ran NICE , 1 and 2
are reddy to be fitted, number 3 how ever is out side tallerance. but more important, She never blowed up
Last edited by Fast Fred; 01-15-2006 at 06:26 AM.
Fred, I think you can still get sleeves from L.A. Sleeve.
I'm about done gathering up parts now. Have a cylinder head on the way. Rules required use of regular fishing motor front half / reed cages / carbs so nothing fancy on that end. I'm thinking that I'll go ~.050" to .075" lower on the ports than the Mod 50 timing.......
I'm thinking of having a head built with a true hemi combustion chamber later on (after I get a motor together and tested).
Last edited by David_L6; 01-15-2006 at 04:34 PM.
I altered the port hights in my 19s cuz the hull i'm runin has a 13" tunnel.thinkin full port hight would work nice for a hull like that L6 .
Originally Posted by Fast Fred
I'm not sure how good an oval course race motor it would make with full port height and 1:1 gear ratio....... Can always raise the ports later. Can't lower them though.
True, but even the most extreme factory Mod 50 was an oval course racerOriginally Posted by David_L6
We can ask the original owner about thatOriginally Posted by Fast Fred
Since 1925, about 150 different racing outboards have been made.
Full tilt Mod 50 porting worked just fine on our FRR motor 20 something years ago. Big old flat deck Desilva with two guys in it.
There is at least one FEH out there with full Mod 50 porting. He runs better than most....
Michael D-1
I don't know the owner, but did talk to one of the builders of that Moda.
There are currently 7 users browsing this thread. (0 members and 7 guests)
Bookmarks