Thread: zx14 motor part compatability
06-20-2009, 09:49 PM #1
zx14 motor part compatability
Hey anyone who is looking for a quick upgrade for pistons should look into a zx14r piston its a 1mm overbore but they will fit directly into the stock connecting rod using the zx14 piston pin. i will post photos and the results of the pistons once i get the motor build complete.
06-20-2009, 09:57 PM #2
06-21-2009, 02:56 AM #3
06-21-2009, 03:00 AM #4
06-21-2009, 10:04 AM #5
i may be off base on this but the 15f has a longer stroke so wouldnt that change it?
zx14r 61mm stroke
stx 69mm stroke
would that increase it?
06-21-2009, 03:35 PM #6
ok my high compression is solved I found a .040 inch cylinder spacer for a zx12r that I am almost positive will fit the 15f
here is a great link that shows how the compression numbers change with gasket thickness
so i decided to go with the .040 which should drop my compression to 10.4 to one putting me where i should be.
06-21-2009, 04:18 PM #7
but riva sell a 40 thou spacer for the 15f
thats if they have any left
otherwise go to some one that has a water cutter and give them a standard gasket and they will cut you one
i would also check the comp ratio when you assemble the motor
a 30 thou change in deck hight normally does not make that much differnce
who are you getting to replate your cylinder
can you post up a pic with both pistons sitting side by side just sitting on there skirts
and a pic with them both pushed on to the same gudion pin
06-21-2009, 04:58 PM #8
I dont know who will replate it yet i was hoping someone would chime in... the pistons for the zx dont use the 15f pins but the zx pins are the same diameter they are actually a little shorter than the 15f pins. and thanks for the heads up on the spacer it looked really close so i figured i would try it. you saved me 60 bucks
here are the pictures you requested
06-21-2009, 05:06 PM #9
06-21-2009, 07:38 PM #10
ohh thats what yall wanted.. i though you wanted the picture of just the pin so i left it out. the crown height is the same but ill throw a picture up in a few im going down to work on the head.
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