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ddgonzal
motorcycle pistons for A-series
#1
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lightweight, low-friction, high-compression, inexpensive. What's not to like?

76mm ZX-11 pistons for your ninja stealth motor (A12 with A14 crank)

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174_683a3d2bec5e0.jpg 640X480 px

Posted on: 5/31 0:19
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Rallytwit
Re: motorcycle pistons for A-series
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What year ZX11 pistons?

Posted on: 6/6 2:36
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ddgonzal
Re: motorcycle pistons for A-series
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I cannot remember, something to do with the piston pin?

D will know

Posted on: 6/6 7:00
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Rallytwit
Re: motorcycle pistons for A-series
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No life (a.k.a. DattoMaster)
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So I played with doing a long road A12A using 133mm A14 rods.

2004-2010 ZX10 Pistons came in 75.94mm with 17mm pin and had a comp height of 22.7mm. 99-01 Yamaha R1 pistons are a very similar spec

What I found is that most motorcycle pistons have a very low comp height (around 22-23mm) so I am surprised that ZX11 pistons would work.

Regardless I can't use them anyway as I have to stay under 1300cc

Posted on: 6/9 17:35
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D
Re: motorcycle pistons for A-series
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No life (a.k.a. DattoMaster)
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From under the Firmament LOL no twiglight effect BS
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I recall vaguely oversized full floating 76.5 gpz1000 pistons were shaved 1-2mm
70mm A12 crank and long rods for 1286cc
Pistons up to 77mm with 70mm crank offset ground 0.5mm will give under 1300cc
just use larger bearings and you have 1294cc

Posted on: 6/17 2:55
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