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Premium Titanium Retainers
Crower is the only manufacturer that utilizes Ti-17 titanium material
in the manufacturing process of their titanium retainers. Although
harder and longer to machine, the Ti-17 is 8-10 points harder on the
Rockwell C scale for added retainer life over conventional 6AL4V
titanium used by all other manufacturers. The result is added longevity
and durability. Crower converted to Ti-17 about two years ago and has
seen no wear due to excessive mileage or high rpm's. Next time you're
considering a cheaper alternative, ask what material that vendor is
using and, if they even know their metallurgy, we guarantee that the
reply will be 6AL4V...then ask them about Crower's better Ti-17
material. All Crower retainers are made in-house at Crower using the
latest CNC machines to insure quality and batch to batch consistency. A
typical Crower titanium retainer weighs about 50% less than it's stock
steel counterpart. For example, the stock K20A2 steel retainer weighs a
whopping 14 grams...it's a real pig, while the Crower titanium retainer
weighs in at a miniscule 7 grams. For every gram you can reduce from
the valve area (valves, retainers, keepers), you will pick up on
average of 35-40 more rpm in valve control. So a 7 gram weight savings
is equal to 280 additional rpm's before valve float. Good stuff!
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