Honda D16 Connecting Rod Lightening
Watch as John Edwards @ Costa Mesa R&D Automotive Machine Shop takes a set
of D16 Honda rods and lightens them on the engine lathe. He removed over 40
grams of material! (949) 631-6376 Don't forget o 'Click' and SUBSCRIBE!
Connecting Rod Balancing
See how connecting rods are balanced by John Edwards @ Costa Mesa R&D,
Connecting Rods Machine Shop Video-Engine Building DVD
Buy the "Basic Engine Building" DVD
Basic Engine Building DVD - Chapter 27: Connecting Rods
By now the connecting rods are ready for pistons. We recommend having the
machine shop clean your old pistons for you, if you plan to reuse them.
It's not fun at all by hand. Here we show you how they install the rod pins
into the connecting rods to connect with the pistons. Then they will
measure the pistons to determine the final bore size of the cylinder walls
before they are honed.
BoxWrench.net is a community and resource designed for automotive
enthusiasts. The Basic Engine Building DVD is over three hours of engine
building that covers everything from removal and disassembly to final
assembly and engine start-up. This is the ultimate DVD for any home
mechanic or engine enthusiast that wants to see a complete rebuild from
Teardown to Start-Up. This video can be used to learn how to work on almost
any type of internal combustion engine including V8, V6, Straight 8,
in-line 6 and even 4 cylinder engines. All of the interactive features and
menus will not work over YouTube.
This video is great for people interested in car repair, car care, and
restoration. As well as hot rods, muscle cars, performance parts, and Boosting horsepower. It can also help
you to gain knowledge for increasing fuel economy, how to lower your
emissions, and covers preventative maintenance to avoid little things like
Get the full DVD with all of the interactive menus, Tools section and
engine Glossary terms here...
Don't forget our Holley Installation & Tuning DVD. Sample clips on our
youtube page and at our store here...
New Transmission DVDs and a Differential Rebuilding DVD just added.
Educating the Automotive Enthusiast
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BMW Connecting Rod Modifications
John Edwards discusses how he machines BMW connecting rods to reduce weight
for increased RPM for naturally aspirated and forced induction engines.
CP-Carrillo - an inside look
CP-Carrillo: an inside look into the making of pistons and connecting rods
for the high performance racing industry.
how to resize, close and hone v8 conrods
A quick guide on how to recondition conrods,removing and replacing conrod
bolts,using ARP 220000 psi rod bolts,closing and honing bigend tunnels to
Connecting Rod Weight Reduction
Here's another weight reduction method used by John @ Costa Mesa R&D
Automotive Machine. Check it out!
Con Rod Mods-01.wmv
Here's another connecting rod modification that John Edwards of Costa Mesa
R&D Automotive Machine performs to reduce reciprocating weight.
www.engine-machining.com (949) 631-6376
Atomic Performance Products - XR6T High Performance Conrods
Atomic billet steel conrods were designed from scratch with one principle
in mind; use aerospace quality materials and sophisticated manufacturing
processes to produce an extremely strong, light and durable connecting rod
for the popular inline 6 cylinder Ford SOHC/DOHC engines, at an affordable
The Design and Evaluation Process
The Atomic engineering team set out to address these parameters by
designing what many performance engine builders are now calling the finest
conrod on the market for the Ford DOHC 6 cylinder engine.
Extensive CAD/CAM computer modelling was employed and produced a H-Beam
design, which has an extremely high stiffness-to-mass ratio. The next step
was to pick the correct materials, heat treatment and surface treatment
processes to ensure durability under rigorous performance applications.
Next came FEA modelling (Finite element analysis) to simulate stresses on
the conrods. This also entailed weighing every piston, gudgeon pin and ring
set on the market and loading this information, plus stroke, rotating and
reciprocating conrod values into our computer modelling software to
calculate the stresses.
The greatest load exerted on a conrod in an engine producing 600 comes not
from the force of normal combustion but from the tensile force exerted by
the piston at top dead centre (TDC). At 5250 RPM the piston exerts a
tensile load on the conrod of 1908 gs (-1693 kgs) at split overlap TDC
reversal. If you increase maximum engine speed by only 1000 RPM to 6250
RPM, the TDC tensile load rises by 50.4% to 2870 gs. At 7500 RPM the
tensile loading increases to 4132 gs, clearly demonstrating the Atomics
design strength of 8000 gs means it has plenty in reserve.
Excessive loads at TDC are brought about by a high reciprocating mass
and/or by increasing engine RPM, so it is essential to design reciprocating
engine components with the lowest mass possible to minimize premature lower
bearing shell bearing failure. This is particularly relevant to our
customers who are turning their engines to 7500RPM+.
For more information, visit