Omc 140hp cross flow

**Jimmybar** · 05-02-2018, 04:56 PM

ahhhh , just been reading another thread on OMC history , the CCC block was well suppored by F1 racing. No wonder we kicked ass at social level . would make a good coffee table ,thanks for your advice on mods .will keep you posted on progress. cya

**71V153** · 05-02-2018, 10:00 PM

Umm, that's not a 140 crossflow?

**powerabout** · 05-02-2018, 11:15 PM

I wonder if a small bore CCC made same hp per cylinder as a KR 15?

**Jimmybar** · 05-03-2018, 01:14 AM

its a CCC small bore race block. just spent time in your history books . great read . racer had a bit to do with em , its gunna be a coffee table . theres no doubt its a crossflow combustion chamber , and remember "DANGER IS INEVITABLE ,,FEAR IS OPTIONAL "have a good one gents ,cya

**Jimmybar** · 05-05-2018, 04:58 AM

its thats.s all it takes to stump you blokes ,, might try another thread get motivated ,,,,,,jimmy

**BarryStrawn** · 05-05-2018, 04:35 PM

Pictures from when you used to run it are probably more interesting to most of the folks here. Kind of disgusting to see it in that state of neglect.

And the model is NR-19S. CCC was the Evinrude decal and RS for Johnson.

**Jimmybar** · 05-06-2018, 05:17 PM

your right Barry, its been laying around for years in the farm shed . would love to do a" cut and display" the workings of a crossflow two stroke for educational purposes , its up for grabs if anyone is interested.its a fair lump of alloy to send O/S ,if there is any interest in OZ , let me know. I'm not one to be emotional attached to old machines, but I respect your view.cheers; P.S thanks for the model numbers . I'll stamp them on a plate and attach,

**powerabout** · 05-06-2018, 07:30 PM

I'd be interested if nobody else in OZ is?

**Jimmybar** · 05-06-2018, 07:50 PM

powerabout;3041350]I'd be interested if nobody else in OZ is? I;m 6.5 hours north of Melbourne . If your location is anything to go fromm ???? make an offer ,

**Jimmybar** · 05-06-2018, 08:09 PM

just for interest : here are some port timing figures. v4 90 hp IN. 2.170",,,,EX 1.805" ///// v4 140 HP. IN.2.100" EX 1.760" ////v6 200hp IN 2.125 EX 1.625"//// v6 CCC smallbore hp?? IN 2.00" EX 1.575" .there is a definite pattern here. Feel free to add to this , regards Jimmy

**powerabout** · 05-07-2018, 05:30 AM

did this configuration work well?
Thanks to fellow S&F'r for the photo

**Jimmybar** · 05-07-2018, 05:57 PM

nice piece of engineering. is blessed by the" KISS " method ,

**racer** · 05-07-2018, 06:05 PM

CCC came with different carbs than pictured.

**Jimmybar** · 05-09-2018, 05:21 PM

Thanks Racer ,your on to something there . we ran that block for a while . the acceleration was breath taking . straight to 7800 rpm . thats with scolloped pistons and cylinder wall skirts cut . factory mod .we were led to believe... how ever we pushed it to 8000 rpm with the slotted piston ports and cylinder wall slots to match. we also tried other block configurations ... and came to the conclusion there's a dozen ways to skin a cat . choose one , we had three different modifications all producing close to the same result . have you seen this in your time ???