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Are you talkin' about the old CROSS flow 40 horse motor ? With the single carb ? this is question from #530

This would have made the OMC factory engineers proud, & maybe jealous ?

[QUOTE=Tim Kurcz;66257]This is my Ropp FE hydro, normally quite stable at 100......... The beast I built last winter is 8# lighter and much more powerful. In this image, I'm loafing by at 75-80...

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Thanks for your input . Very interesting . If anybody ELSE has any knowledge on that motor ,or the rotary valves ,...

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It seems to me that they could just have...

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..................................................................................................................................... .Is this a "tuned exhaust system? " The 65-75 horse fishing...

Think about this . He drove , over 30 years ago, Mike Snell's "Midnight oil" . An
"R" hydro, ( a Ron Jones cab over ) with hopped up Merc 800 (4cyl.) it held the R kilo record at about 107...

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......................................................................................................................................IT WAS JUST BROUGHT TO MY...

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....................................................................................................................................... Now , everybody should know that in outboard...

.............................................................................. Sorry, you're WRONG. I was there that day, last year, and talked to him . He told me , or , like you , i would not have...

the "rubber ducky" , here in california (northern) holds the 2 man runabout world's kilo record at 112 mph. With only (if i have it right) a Rossi 350 C C motor. As far as i know ,this is the the...

Question : what is the difference between a fishing 56 Cube 70 horse omc & the S S T 60 powerheads. i doubt that O M C would have built the sst60 with a fishing 70 horse powerhead. Must have been...

Be careful, don't fall off !

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I have one "udder" question; what are the differences between the 65 H P, 70 H P, & the 75 H P (50 CUBE) blocks?

in the top right of the bottom picture - it looks like slag in the casting ! YUK ! .......I am refering to #187 pics from fast fred

and, got the attack angle corrector, makin chips on it, a....................................................................................
O K, I'll bite- What is an "attack angle corrector?". ...

I especially like that solid top mount . did you make it from scratch ?...........................................................for those who want top quality grade 8 bolts , your caterpillar...

...............................................................................................................................................................In THAT case, i assume your BIG HIT is...

Why can't you just shoot in the mix into the intake (front ) of the carbs? i saw an OMC factory setup (nitrous) on a 75 horse stock SPORT E back in 1976 , it was 30 horse gain , really worked well.

[QUOTE=Fast Fred]Roy, that box find ya? got the one you sent, the thing is mint, thanks:cool:


I got it for sure ; it's fine . Hope to install it real soon. Thanks again -Roy

did they run yer mota on the dyno , yet ? Got results?

I don't know about you guys, but i'm getting a bunch of ads on the "image shack" that is supposed to have his pics .