H Drive Racing Dog Box Transmissions - TOYOTA VITZ SEPANG CIRCUIT
H.DRIVE RACING Products
Dog Box Transmission on Toyota VITZ Super 1500 - SEPANG INTERNATIONAL CIRCUIT
H.Drive Racing Dog Box Transmissions
Dog engagement is normally used in racing applications where fast, precise shifting is needed. Dog gear engagement is facilitated by numerous large teeth (dogs) that mate into matching openings machined into the opposite surface of the drive gear. Unlike the synchro engagement, there is no synchronizing mechanism to assist in equalizing speed. Ideal gear selection—e.g. minimal clashing and wear of the dog rings—is achieved by quick shifts; the motto here is "the quicker the better", so bang away.
There is no depressing the clutch in the conventional sense like with the synchromesh transmission. A momentary break in engine load until the shift is achieved by a quick throttle blip or clutch depression. The driver will then experience the dog ring engaging with the next gear and the throttle can be reapplied. With practice this can be done in milliseconds. In fact, a driver can preload the stick shift in the direction of the next shift, and then when he either blips the throttle or clutch the shifter will quickly click in the desired gear.
With all else equal, dog-engagement gears are much stronger than synchro-engagement gears because without needing to make space for synchro rings, the gears themselves can be made thicker. The number of dogs (teeth) and the size of the openings determine the window of opportunity that the dogs have to engage during the shift event. Rings with a smaller number of teeth provide a more efficient, smoother shift quality. The downsides to this easier engagement are increased noise and abruptness on the shift.
Pfitzner Performance Gearbox - How to drive a dog box
The creator of these world class gear sets Simon Pfitzner, takes you
through a few ways to drive a dog engagement gearset in a street
Nissan R32 GT-R
Holden Commodore T56
Its quite a simple process, once you know how, you should get years of
faithfull service out of your new gear set.
1st cruise with dogbox & HKS T51R,
First night out testing my new PAR dogbox.
1st to 3rd straight cut gears with dog engagement, 4th helical gear with
dog engagement, 5th standard.
Keisler Engineering Introduces the Road & Track 6Speed!!!
***DAKOTA KITS NO LONGER AVAILABLE, OTHER CARS CALL OUR SALES DEPARTMENT***
Keisler Engineering's new Road and Track 6Speed features up and down
clutchless shifting and more than 1000hp and torque. This is a racing
transmission for use on the track only. Call or email for more
Check our our R&T Brochure-
Call Toll Free: 888-609-0070 ext. 1
Hey Folks - A note about this video.
There are 3 ways to downshift the Road & Track 6-speed:
1. clutchless with speed match - just blip the throttle before engaging the
2. clutchless without speed match - **the way I am showing** this will
momentarily break traction and it is the most abrupt shift method but also
3. use clutch - this will bring the speed matching up as you release the
Methods 1 and 3 will be the smooth methods, and no torque shock. Use that!
H Drive Racing Close Gear Ratio Transmissions - HONDA EK9 K20A
H.DRIVE RACING Products
Honda Civic Type R EK9 K20A
H.Drive Racing Close Gear Ratio
H.Drive Racing Final Drive
H.Drive Racing Super Single Clutch
H.Drive Racing Limited Slip Differential (LSD)
H.Drive Racing R Spec Damper
MTI Racing Six Shooter Sequential Transmission
Shot by ChadBee Photography at Atlanta Motorsports Park.
MTI Racing proudly announces their new Six Shooter Sequential Transmission
Conversion System. This conversion comes complete with everything you will
need for no-lift, clutch-less upshifts and automatic rev-matching down
shifts. The conversion system is comprised of:
- sequential transmission
- shift linkage
- load cell shift knob
- neutral/reverse lockout
- electronic control unit (ECU)
Corvette platforms currently supported include: C5, C6, C6 Z06, and ZR1.
The upgraded transmission fits without vehicle modification and bolts
directly to a factory differential and driveline.
MTI Racing has partnered with Pfitzner Performance Gearboxes (PPG) for this
exciting endeavor. PPG is an Australian based company with a well-built
reputation as being one of the world's leading providers of gears for track
and motorsports. Specifically, PPG supplies many of the gears for the
Australian V8 Super Cars Series. With over 600 HP, these cars see massive
abuse every time they take the track.
Think how long it takes to blink your eye just once; the average speed is
about 300 milliseconds. With shift times as low as 50 milliseconds, gear
changes are done in a fraction of the time that it takes to complete one
blink of the eye. This gives you, the driver, the ability to shift faster than other drivers and creates a
true competitive edge over your opponents.
While the full video is still in production, enjoy the intro video created
from our exciting test program. Stay tuned for updates!
Torque Converters Explained -EricTheCarGuy
Visit me at: http://www.ericthecarguy.com/
In this video I cover the purpose and operation of the turbine, stator,
impeller, and torque converter clutch. I hope the explanation and
practical give you some insight into how these parts work to not only
transfer power from the engine to the transmission, but also how it drives
the transmission pump and doubles the torque output of the engine when you
take off from a dead stop. I've wanted to make this video for some time.
In fact I've had the fans sitting in the back of the shop for almost a
year. Now that I have the Automatic Transmission Dissection video under my
belt I thought I would add a torque converter dissection into the mix. I
hope you enjoy this video and that it gets you a better understanding of
torque converter operation. Especially since I killed my air compressor
cutting this one in half.
Link to compressor repair video:
Yes this is indeed 'take 2' of this video. I changed a few things to make
the information more accurate. I am going to be posting the old video for
Premium Members at EricTheCarGuy.com just for fun. Here's a link to more
information about becoming a Premium Member.
Other useful links
Automatic Transmission Dissection (Part 1):
Automatic Transmission Dissection (Part 2):
Discussion about this video:
Why I Pulled the first video:
Due to factors beyond the control of EricTheCarGuy, it cannot guarantee
against unauthorized modifications of this information, or improper use of
this information. EricTheCarGuy assumes no liability for property damage
or injury incurred as a result of any of the information contained in this
video. EricTheCarGuy recommends safe practices when working with power
tools, automotive lifts, lifting tools, jack stands, electrical equipment,
blunt instruments, chemicals, lubricants, or any other tools or equipment
seen or implied in this video. Due to factors beyond the control of
EricTheCarGuy, no information contained in this video shall create any
express or implied warranty or guarantee of any particular result. Any
injury, damage or loss that may result from improper use of these tools,
equipment, or the information contained in this video is the sole
responsibility of the user and not EricTheCarGuy.
Transmission Repair - GM 4L60-E Transmission Re-Assembly (Rebuild)
On this video we go through the re assembly of a 4L60E Transmission. I
tried to make this video shorter for you so I skipped the bushing
installation and installing the bolts on the valve body. But you can go to
the teardown video for reference on where each bolt goes, since they're
different sizes. I will make a follow up video on bushing installation.
Pfitzner Performance Gearbox in Australia. Manufacturers of some of the
worlds strongest gearbox parts for all road and race applications. Dog
engagement, straight cut, helical cut, whatever your need for road, rally,
drag, race and road applications.
Team 1320 382whp All Motor K26 Eg Getting Ready For 2011 IDRC West Coast Nationals
Idle and walking around of Team 1320's All Motor Street Car. Getting her
readyy to race IDRC at Fontana auto club aka funtucky April 23rd. 67mm
kinsler ITB w/ eight injector set up. primary's run at idle and low RPM and
secondary top feed injection transition on at high RPM for better
atomization. Custom GO-Powermotorsport / Webcam single lobe vtec killer
camshafts, machined factory roller rockers, skunk2 valve train, GO-Pwr 2.6L
106.xxmm crankshaft k24stroker kit, 90mm arias aluminum 15:5:1 compression
ratio pistons. k24 GRP aluminum rods, aebs sleeves, port flow head, aem
ems, race pack data log and display dash, rywire milspec wiring harness,
fuel lab fuel system with x8 ID injectors, meziere external water pump,
Clutchmasters FX725 twin disc clutch and flywheel kit, Quaife LSD
differential, 4.7fd, 1-4 PAR dog box transmission. GO-Pwr hood exit header,
Q16 race gas skunk2 suspension and camber kit. hasport mounts, 8.50 et's
and slower roll cage done by GO-PWRmotorsports.
Dogbox Racing Evo 2013 Dsm/Evo Shootout Trip
Alex and the Dogbox Racing Evo. These were all his passes from the weekend.
Congrats on getting the car running the week of, and then going on to win
the Shootout! Talk about a consistent 8 second car. Taking the long way