American Motorcycle Dealer AMD 179 June 2014 | Page 20

3D digital gauges are used by Horsepower Inc. to ensure the perfect
fit of all its throttle bodies to the stock manifolds

roller shaft/bearing assembly. Additional features
include the use of factory bolt patterns, and cruise
control to make them fully compatible with stock
components, for ease of installation, and they are
offered in many bore sizes with extended deck
lengths and port configurations to match any head.
When we asked Mary Jo about the development
of new products alongside improvements to throttle
body designs, her answer reflects the attitude that
was responsible for getting Horsepower Inc. (HPI)
started in the first place
“A lot of us here at HPI are basically a bunch of
'motor heads', so we spend a lot of time reading
about, thinking about, and talking about all the

The inconspicuous entrance of HPI’s Indianapolis
facility belies the myriad of tuning options
available to the company’s customers

All production and machining is taken care of in
the Eire facility, which also houses a dyno room
used in the development of new products

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AMERICAN MOTORCYCLE DEALER - JUNE 2014

things that are going on in the motorsports
business. We know what's coming down the road
for new engine designs, and we keep a sharp eye on
the latest developments in CAD/CAM technology,
too, so we can continue to introduce components
for the latest Harley engine designs before others in
the industry are able to catch up.”
Among these gear heads is Eric Henderson, who
is the company’s head machinist and head of design
and testing of new products. He is assisted in the
manufacturing and inspection work by Kyle Layton
and Mike Regan.
However, such is the high level of quality control
at HPI that the company also employs Ian Ross as
head of assembly and final inspection quality
controller in their automotive division - the company
not