I would like to get some finger ports put in a 56ci. OMC can somebody point me in the right direction to someone who can do this for me. Thanks Tim
I would like to get some finger ports put in a 56ci. OMC can somebody point me in the right direction to someone who can do this for me. Thanks Tim
seen some nice machined ones over on that Mod50 thread, last page.
Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052
I'll be glad to machine them in for you. Send an email to "nav27k at comcast.net" and we can make arrangements.
Tim
Questions for those traditionalists who might have tried it before:
are there any hard and fast rules for finger/piston ports for single transfer port cross-flow engines?
The main purpose would not be so much the improvement of gas flow to the combustion chamber, but the cooling and lubrication of the small-end bearing and the underside of the piston dome?
The flushing of the pockets of the piston dome (top of piston) might be an additional benefit, if not overdone?
I am talking specifically large-bore (>3.25") cross-flow engines here, like OMC V4/6, Chrysler&Force iL 4/5.
finger ports do let more cool charge get to the under side of the piston on a LOOPER. cross flows are not the same animal, and do not work the same.
you may be able to move charge from under the piston to the port transfer.
Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052
You can scallop the cross flow pistons like the factory did on race engines like V4 stangler and CCC and also the production 2.6 XP/GT
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