NRHS is pleased
to bring you a collection of our tech
tips, articles, and dyno test results. Check back frequently as we will be adding
to this page.
NRHS Displacement and Compression Calculator
Assembling your cylinders, pistons, and rings
Squish Clearance - What it is and how to get it
Checking Valve to Piston Clearance
Horsepower and Torque - what they really mean
Ignitions Explained and Tested
Initializing the SE
ignition Module on the 2004-Later Sportster
NRHS General Instruction Sheet for installing your
M6 Primary Chain
Tensioners in XL applications
Pistons - Caveat Emptor
Hypereutectic Pistons in
Straightness and Roundness of Cylinders
Cleaners - Something You Need to Know
Dyno Test Results:
Check Valves - Do they work?
Fitch Fuel Catalyst -
Does it Add Power?
Mikuni vs. CV -
SE "E" Cams
vs. SE .536 Cams -Dyno Results
Cams vs. SE .536 Cams -Dyno Results
Supertrapp Discs - Dyno Results
CV Carb Needles - Dyno Results
Anti-Reversionary Cones - Dyno Results
Velocity Stack - Dyno
Have some ideas on articles
you'd like to see here?
articles and images are copyright 2000-2011 NRHS. May not be
reproduced or used without permission.
More Excellent Tech Articles by Ron Dickey of Axtell
Sure, Ron makes the best big bore cylinders you can
buy. But he's also one of the best motor guys you'll
ever come across. NRHS highly recommends a careful read of all
the tech information Ron is willing to share.
Disclaimer: some of the articles above are of
a less than complimentary nature with respect to the
products they describe. We have received, on more than
one occasion, strong reactions from the companies or
people representing the companies that make these
products, including accusations of having ulterior
motives and so forth. I guess that's to be expected.
Our promise to you is that we are telling the
absolute truth about our
experiences with these products and why we have the
view we do. We understand and
respect that some people may have different
experiences and views.