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4mil porting on stock jugs with porting done


Stonytony

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Well I'm in a bind here. I got a set of jugs 68mm bore with porting for stock stroke. I want to upgrade to a 4mil. If I use the 2mil plate to get the top of the ports right. I would then lower the bottoms of all the ports by 2mm? Looking at this theory alone would that work.

 

I know the plate corrects the tops of ports timing but then piston is goin 2mm lower then the bottoms of the transfer ports. So lowering those by 2mm would be in theory the same as fresh jugs ported 2mm up and 2mm down. Then of course porting for sand/drag.

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And I'm glad "registered user" FINALLY posted some proof that he's actually ported a motor...

Sent from a van down by the river

Wrong, last month registered user established that the work in those photos was mine. And now here he is taking claim on my most A1 work.
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