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Location:
Melbourne
Registered:
May 2002
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4A-GZE pistons specs?
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Tue, 06 January 2004 02:25
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Can anyone give me the bore size, pin height, pin diameter and crown volume. I am also wondering how they are made, are the forged, coated with anything special?
Thanks
Mal
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 4A-GZE pistons specs?
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Tue, 06 January 2004 05:01
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| Malkomv2.0 wrote on Tue, 06 January 2004 13:25 |
Can anyone give me the bore size, pin height, pin diameter and crown volume. I am also wondering how they are made, are the forged, coated with anything special?
Thanks
Mal
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the new piston that ppl chipped in to get so i could cut it up is part number
13103-16131 (this is a +0.50 piston)
skirt diameter = 81.5mm
pin height (pin centre to crown) = 30.5mm
pin diameter = 20mm
crown volume, not sure but will measure.
most of the crown volume appears to be in the valve cutouts.
i believe that they are forged. search the tech section for "piston analysis" i posted pics of the forging flow lines of the older type of 4AGZE piston.
i also believe them to be coated. i have not determined the type of material, but will soon.
Cya, Stewart
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: 4A-GZE pistons specs?
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Tue, 06 January 2004 05:36
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The crown volume of the later 8.9:1 c/r pistons is 6.5cc.
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