Piston Weights - update
lrrs52 at yahoo.com
Fri Mar 14 05:52:10 PDT 2008
Here's an update on the +2mm Spears pistons I'm
about to put in a motor...
I always have SwainTech put their Ceramic Thermal
Barrier coating on the domes and a Poly-Moly
lubrication coating on the skirts. With all of the
discussion on piston weights, I decided to check the
weights again after the coatings were complete. I
stopped at a local jewelry store and on their NYS
certified scale got 221.1 grams after the coatings
(heaviest of two).
The coatings work extremely well and I was glad that
their weight turned out to be neglible at best...
--- Ted Temple <lrrs52 at yahoo.com> wrote:
> in the process of building a 2mm Spears motor for a
> friend. Here are the individual weights for those
> actual parts:
> +2mm (coated) piston: 221.0 Grams
> Wrist pin: 56.7 Grams
> Rings: 17.3 Grams
> Clips: 1.0 Gram
LRRS #52 - WERA #552
Spears Enterprises - www.SpearsEnterprises.com
Street & Competition - www.streetandcomp.com
Woodcraft - www.woodcraft-cfm.com
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