Boyesen boost porting

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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LMH
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Boyesen boost porting

Post by LMH »

Has anyone tried it on any blocks for the AF16e? I just recently did a set on a blaster cylinder Im porting. Im doing 4 cylinders with multiple styles of port maps and one Im doing a 240 LA sleeve and a vitos 240 piston with a +3 vitos stroker crank that will use the boyesen boost ports and Ill be drilling and running triple exhaust ports and reshaping the head to a more hemispherical shape.
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Last edited by LMH on Tue Jan 07, 2014 3:47 pm, edited 2 times in total.
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LMH
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Re: Boyesen boost porting

Post by LMH »

The first picture you can see shiny stuff in the blackness, its metal! If anyone thinks they have a seizure and it scars the cylinder and doesnt think metal shaving are in your engine, you should look at that first picture.
Im just trying to find out if anyone has any really interesting port designs on their honda they would like to share.
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whitey
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Re: Boyesen boost porting

Post by whitey »

You ported it till it bled! Haha! Interesting idea
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78 Honda Hobbit Athena
78 Honda Express/Hobbit Stage6/Athena LC 70
00 Gilera Runner PM Tuning 172
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LMH
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Re: Boyesen boost porting

Post by LMH »

I try to make it cry a little first before it bleeds. I use multi grease when sliding the piston into the cylinder when raising the roofs of the ports, it makes it so much easier to manipulate.
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