Connecting Rod Balancing
See how connecting rods are balanced by John Edwards @ Costa Mesa R&D,
Automotive Connecting Rods 101
John Edwards discusses the various types of connecting rods found in modern
engines. www.engine-machining.com (949) 631-6376
Connecting Rod Weight Reduction
Here's another weight reduction method used by John @ Costa Mesa R&D
Automotive Machine. Check it out!
How To Swap Piston on Connecting Rod at Home - 4.8 Flat Tops into a 5.3
In this video I am pulling one piston out at at time from a 160k mile 5.3.
This 5.3 will be going into my 1987 C10. I then show the removal of the
dished 5.3 piston from the connecting rod and then the mount of used 4.8
flat top pistons back onto the connecting rod. Then the 4.8 piston and rod
are inserted back into the block. This is all happening at home in my
garage with basic tools. I do use a press to remove the 5.3 piston but you
could easily use the propane torch for the removal by reversing the
mounting procedure that I show with the torch.
By installing flat top 4.8 pistons into a 5.3 the compression will change
from 9.5:1 to 10:1. Later I will mill the heads .030" to achieve about
Enjoy the show!
Check out my other videos like this on the link below:
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.
Blueprint 103 - Connecting Rods
Connecting rods are the crux of the engine. They're responsible for
carrying the force of the explosions that occur in the combustion chamber
and using it to turn the crankshaft. Oil clearance specifications of the
"big end" and "small end" are crucial to maintaining consistent oil
In this video we take 3 measurements:
Rod Journal (also called Crank Pin) Diameters
"Big End" Bore diameter
Using the Journal diameters and the "Big End" Bores, you can calculate your
oil clearances of each bearing. The process is illustrated here. Anyone
rebuilding an engine who doesn't know its history should check all of these
clearances whether or not they're re-using the rods. If the crank,
bearings or connecting rods are going to be replaced, it's imperative that
you measure the new parts as well to ensure they're in spec.
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 Narrowing
One of John's cleints sent a set of Chevrolet connecting rods to Costa Mesa
R&D Automotive Machine to be narrowed, watch how its done R&D style!
www.engine-machining.com (949) 631-6376
850 Con Rod Mods-01.wmv
Check out this Fiat 850 connecting rod, John at Cosa Mesa R&D Autmotive
Machine put it on a diet and it lost 80 grams of weight.
www.engine-machining.com (949) 631-6376
Montaje de segmentos de pistón - Motor Service Group
Technical Podcasts - Comunicación de conocimientos por vídeo
- en nuestros podcasts de vídeo encontrará indicaciones prácticas para
el montaje y aclaraciones sistemáticas sobre nuestros productos
Durante el montaje de segmentos de pistón se pueden cometer muchos
errores. Le mostramos los puntos más importantes a tener en cuenta.
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
Fitting of piston rings - Motor Service Group
Knowledge transfer via video
- our video podcasts provide you with useful information on our products,
such as hands-on fitting instructions and system descriptions.
The mounting of piston rings bears a lot of potential for mistakes.
We show you the most important points that need to be considered.
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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