Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted October 27, 2010 06:45 PM
We would have to spin the 1570 to about 13,800 and have a head that flows about 320 cfm at 28" of water to make 330 hp.
The stroke is too long, the mean piston speeds are to high so the g force will unseat the rings and flutter.
If we could go bigger on the bore (91mm) then we could de stroke it, but we cant. Not easily.
And the ports MCSA will need to be about 2.3 sq in. and that's about into water everywhere.
So, no. I think the limit with a factory zx14 head would be about 300 hp. if we could get big enough valves in it and a 90+ mm bore.
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Y2KZX12R
CompetitionCNC.com
   
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ZRXDean
Needs a job
Posts: 2225
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posted October 27, 2010 08:50 PM
quote:
We would have to spin the 1570 to about 13,800 and have a head that flows about 320 cfm at 28" of water to make 330 hp.
The stroke is too long, the mean piston speeds are to high so the g force will unseat the rings and flutter.
If we could go bigger on the bore (91mm) then we could de stroke it, but we cant. Not easily.
And the ports MCSA will need to be about 2.3 sq in. and that's about into water everywhere.
So, no. I think the limit with a factory zx14 head would be about 300 hp. if we could get big enough valves in it and a 90+ mm bore.
Man I just love data, great post Jim.
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WRECKSHOP
Expert Class
Posts: 359
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posted October 31, 2010 08:41 AM
Give "Jim" a few more months at this ZX-14 stuff and we are going to see some even better numbers...
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WRECKSHOP
Expert Class
Posts: 359
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posted October 31, 2010 08:44 AM
And watch Rickey Gadson start to break some records and post up some astonishing e.t.'s with this new cylinder head package developed by none other "CNC Competition"....
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