Piston Tech, E-series...
(perhaps this could be sticky some day?)
I have some piston p/ns for E-series engines. Feel free to post any additional info, and i'll fill it in.
12010-01M00 - Piston E13s
---76mm bore
---32.5mm comp. ht.
12010-01M02 - Piston E13s
---76mm bore
---32.5mm comp. ht.
12010-01M10 - Piston E13s
---76mm bore
---32.5mm comp. ht.
12010-01M12 - Piston E13s
---76mm bore
12010-01M22 - Piston E13s
---76mm bore
12010-13M22 - Motorsports Piston/Pin (E16, STD)
---76mm bore
---32.5mm comp ht.
---crown top
---approx 18cc volume
---comp. ratio: 10.8:1 (18cc head), 9.4:1 (25cc head)
12010-11M02 - Piston E15s
---76mm bore
---32.5mm comp. ht.
12010-11M12 - Piston E15
---76mm bore
---32.5mm comp. ht.
12010-11M22 - Piston E15
---76mm bore
---32.5mm comp. ht.
12010-15M02 - Piston E15
---76mm bore
12010-17M12 - Piston E15T
---76mm bore
---33.5mm comp. ht.
---NO VALVE RELIEFS
12010-17M13 - Piston E15T
---76.25mm? bore
---33.5mm comp ht.
---crown top
---approx 24cc volume
---NO VALVE RELIEFS
---comp. ratio: 7.8:1 (18cc head, E15ET ONLY)
12010-19M02 - Piston E15s
---76mm bore
---32.5mm comp. ht.
12010-19M22 - Piston E15
---76mm bore
12010-31M02 - Piston E16
---76mm bore
---32.5mm comp. ht.
12010-31M12 - Piston E16
---76mm bore
---32.5mm comp. ht.
---crown top (2.35" dia. head recess 0.360" deep)
---approx 18cc volume
---rings: 2x 1.5mm 1x 4mm, pin dia. 0.7845" (offset)
---comp. ratio: 10.8:1 (18cc head), 9.4:1 (25cc head)
12010-31M22 - Piston E16
---76mm bore
---32.5mm comp. ht.
12010-33M22 - Piston E16
---76mm bore
---32.5mm comp. ht.
---crown top (2.35" dia. head recess 0.360" deep)
---approx 18cc volume
---rings: 2x 1.5mm 1x 4mm, pin dia. 0.7845" (offset)
---comp. ratio: 10.8:1 (18cc head), 9.4:1 (25cc head)
12010-61A01 - E?
12010-41M02 - Piston E10s
---73mm bore
12011-73A00 - Piston E16
---76mm bore
NOTE #1: All compression ratios calculated with 1mm thick (compressed height) head gasket and 0.00mm deck clearance.
NOTE #3: it would appear that E13, 15, & 16 pistons are largely interchangeable, in fact, i see the same p/ns listed w/ different descriptions quite often. i would be a little unsure of compression ratios, unless someone can dig up piston volume info...
***Aftermarket pistons are available, but not at all common for such an old and unpopular engine. I am investigating sources, including:
-Topline,
http://www.theonlysource.com/index2.htm (they list pistons for E15 and E16 engines, but i haven't found any specs yet...)
***Custom pistons can be ordered from several sources, including:
-Arias,
http://www.ariaspistons.com/ (forged, cost about $500/set)
-Wiseco,
http://www.wiseco.com/ (forged, about $400-$500/set)
-Ross,
http://www.rosspistons.com/ (forged, about $450/set)
and many other... look around, there's good stuff out there.
