DOHC vs SOHC vs OHV - Explained
How do camshafts and valves work? The differences between DOHC, SOHC, and
OHV or pushrod valve trains is explained. How the valves are related to
each, and how each works. I will also speak of advantages of each of the
valve trains. Dual overhead cams (DOHC), singles overhead cams (SOHC), and
overhead valves (OHV).
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Cylinder Head 205 - Degree DOHC Camshafts
This video is all about establishing your valve timing baseline, and
adjusting your camshafts to the manufacturer's spec. It's only ONE of
several steps that should be performed when you're assembling your engine
on an engine stand. Establishing these conditions with accuracy while your
engine installed in the car is a near-impossibility, and the reason why...
is demonstrated in this video. There are several challenges to overcome
when performing these procedures on a 4gxx series Mitsubishi engine, and
they're all defeated here.
The cylinder head used in this video is a J1 spec '92 Hyundai Elantra
small-combustion chamber head which has had several valve jobs and has been
resurfaced multiple times by budget engine remanufacturers who didn't care
about quality control, as well as performance shops who do. It has had no
less than .040" removed from the head gasket surface, the valves are
recessed because of all the valve jobs performed, and at some point when it
was cut, it wasn't level. Removing material from the deck surface will
change the installed camshaft centerline, and that will change your
engine's valve timing events even if all other parts remain the same.
I would claim this is a multi-part video except that I've got the videos
broken up by topic already, and this one is all about setting your cams to
the manufacturer's specification. It is not the end of testing that will
be performed with these tools. The basics concerning the process and tool
fabrication are covered here. Further discussion on this topic concerning
the effects of advancing or retarding camshafts from spec, and for checking
your valve clearance will be in the videos that follow. I had to end this
video after the manufacturer's spec was achieved to make it easier to
digest, and because it would have created a video greater than one hour in
length despite the break-neck speeds that things happen here on
Where your cams are set determine how the swept volume of the combustion
chamber gets used. The information on the manufacturer's spec sheet is
their recommendation for baseline settings that will help you get the most
out of those camshafts. Whether or not your engine can operate with those
specifications without additional hardware or without causing a
catastrophic failure will be expanded upon in Cylinder Head 206. The next
video should be used as a companion to this video because establishing the
manufacturer's baseline is not the end of the assembly or testing process.
It's only half the battle. Should you be lucky enough to find your
combination of parts allow your camshafts to fit and requires no additional
adjustment after assembly, the steps in this video and in Cylinder Head 206
should still be performed if you are doing the assembly yourself. Failure
to inspect these variables may lead to a tuning nightmare once the engine
is back in the car, hard starts, or worse... bent valves and damaged wrist
Making these tools and performing these steps will give you the peace of
mind to know with certainty that your engine is operating safely at its
Overhead Cam at 14K RPM
This video shows an operational cutaway of a BMW S1000RR — a 193HP
superbike — bumping against its 14,200RPM redline. A cam and valvetrain
at 118 cycles per second is an amazing sight (and sound)
527 cubic inch 427 Ford SOHC on the dyno - 870 Horsepower!
427 SOHC Ford FE on the Dyno. Made 870 horsepower at 7000 RPM and
722 TQ! Absolute top line components throughout - as nice as a Cammer
That's 1.65 HP per cubic inch and 1.37 TQ per cube from a vintage style
Billet 4.375 stroke steel crankshaft. Billet 6.700 Oliver rods. Iron
4.375 bore Genesis block. Highly modified Coon Cammer heads with raised
ports that flow 456 cfm. Highly modified Dove single plane intake with
sideways mounted Quick Fuel 850 carbs. Billet .705 lift cams. Prototype
T&D roocker system. Compression is 11.5:1 with custom Diamond pistons,
skirt coating and an .043-.043-3.0mm ring package. Crank trigger ignition
with custom "T" handle MSD wires. Billet rail Moroso mid-sump oil pan.
Meziere water pump.
Tom Fry's 427 SOHC Cammer 740HP Dyno Pull | QMP Racing
Tom Fry's 427 SOHC Cammer on the Dyno making 740hp. This engine
will be going into a '63 Galaxie and will run on normal pump gas. Thanks
for watching; remember to watch in HD!
QMP Racing is located in Chatsworth, CA
Check out our website: www.qmpracing.com
Like us: facebook.com/qmpracing
Tags: Dynamometer chatsworth race Dyno QMP engine Racing Drag Mustang Burnout turboExhaustCamaro Corvette Cars
Cobra Muscle Street Mile Supra Shelby Pontiac turbocharger Ford Paradise "Drag Racing"
"Chevrolet Corvette" Dodge Twin "Drag Race" Stock Mazda Boost HP horse power torque Run "Burnout
Paradise" muscle galaxie 63 cammer SOHC 427 nos nitro Nitrous oxide Automobiles Ls1 Z28 Holden Truck
Loud Raceway Z06 Rx7 Performance Dragster Rev Custom Viper Srt4 Rotary
Ford Mustang Crash And Fail Compilation
In this video you will find all the best Mustang crashes you can find anywhere
else, there was so much footage it took 20 minutes to get it all in one
video! I hope you all enjoy the video and dont forget to look at my Channel
to see the other compilations! Copyright Disclaimer Under Section 107 of
the Copyright Act 1976, allowance is made for "fair use" for purposes such
as criticism, comment, news reporting, teaching, scholarship, and research.
Fair use is a use permitted by copyright statute that might otherwise be
infringing. Non-profit, educational or personal use tips the balance in
favor of fair use. THIS VIDEO IS PURELY FAN-MADE!
Freight Train fires up at 2008 CHRR
Legendary twin engined gas dragster the Freight Train fires up in the pits.
While it doesn't have the cackle of the nitro cars, the "whomp" of 16
cylinders of small block chevy and the cloud of blackie carbon is pretty
awesome...not to mention the engineering feat of linking and synching two
V8s is a neat deal. One of the few gas dragsters that made top fuelers
nervous when running for Top Eliminator.
mitsubishi 1.6 DOHC 16V engine
disassembling a mitsubishi engine from a hyundai landra j1 1993 after
350000km to change piston rings and everything else is worn out