Slow motion video Custom Calibrated Holley Performance Carburetor.
Slow motion video of Custom Calibrated HP Hot Rod Series Holley Carburetor. You can find Custom hand built carburetors to your specifications and more at http://www.apsracingusa.com .
New Custom Built HP Hot Rod Series 4150 Carburetor 750 CFM
This is a Brand New Custom Built Holley Double Pump Carburetor hand assembled by Custom Carb Builder, Ron Blanchard. After the carburetor is built and calibrated to your spefications, it is tested on a LIVE engine to ensure the proper function, reliability and performance. These HP carburetors are ideal for street rods, off road racing, drag racing, and boating applications. Performance Carb has the experience and reputation of making more horsepower than the other guys. So, if you want more BANG for your BUCK, This is the Carburetor to buy!
- Base Plate has vacuum port for power brakes/transmission vacuum
- Screw-in air bleeds
- CNC Top
- All metal components
- Hi flow needle & seats
- Dog leg Boosters
- High quality components
- Non-stick gaskets
- Perfect for high performance street, race, or marine applications
- Carbs are tuned on a test engine before shipping
- All body surfaces are machined
- Performance Carb uses a Superflow 1200 Flowbench for precision balancing & blueprinting of venturies, Booster signals, airspeed and total CFM
- Hand built and made in the USA
Music: http://www.danosongs.com - Doninator
High performance auto race racing products
Tuning Holley Carb- Engineering A Street Rod.mp4
Tuning the Holley 850 Carb that comes with the Chevy 502/502 Crate Engine
was a fun but often frustrating task. Ultimately had to replace with an
850 Double Pumper. Even the Double Pumper needed modifications to meet our
goal of 0 to 60 mph in under 3.5 seconds-which was accomplished. Details
of what was done and why are outlined. Full details covered on our web
site at www.netWelding.com/Holley_Carb.htm.
Holley 4150 Street HP carb rebuild- Tear- Down-Part 1/3
here is a video i made when I rebuilt my Holley 4150 Street HP carburetor
that I purchased at a swap meet. It turns out it was in very clean
condition and would not have needed rebuilding but I wanted to make sure it
was clean inside. It was a good experience doing the rebuild. It's always
good to learn something new. I am not a pro and this is my first Carb
teardown so those folks that feel compelled to say what is wrong with what
they see, please don't bother. Remember what your Mom said, "if you can't
say something nice..."
Carburetor Main Jet Tuning - Summit Racing Quick Flicks
In this video Norm breaks down the Main Circuit of a Holley Carburetor.
First covering the process of adjusting the Primary Jets, moving into the
tuning of the Secondary Jets, and Norm follows that up with talking about
the venturi effect and how that plays an important role in how a carburetor
Holley Carb Booster Tech
Annular and down leg Booster
comparison, slomo top camera shots. Groutaone official race gear found here
Holley carb adjustment basics
-just a quick overview of how to adjust a holley and what to know. happy to
answer any tuning issues. i know far more than id like to about these old
holleys. not a very good public speaker clearly.
HOLLEY CARB FLOODING & HARD STARTING SOLUTIONS
street avenger holley bog problem explained!
everyone has always complained about these being highly untuneable. i have
had two and agree but have located the problem. this is an explanation of
what i show in vid please read!!!!!
There are 3 problems on the Street Avengers that cause the stumbles and
1. Lean Jetting. The S/A carbs are jetted very lean on the primary side,
and extremely lean on the secondary side. Bump primary jetting up about 3
jet sizes and then make the secondary jets 8 sizes larger than the
resulting primaries. To save a few bucks on jets, take the jets out of the
secondary side and install them in the primary, and then just buy a pair of
jets for the secondary side. This gets the carb jetted about right and will
do wonders for throttle response and power.
2. Accel pump lever not touching pump cam. I see this constantly on the
S/A carbs, and it's really lousy assembly work at the factory: The accel
pump lever that connects between the pump cam and the accel pump arm does
not ride on the pump cam at idle. The lever is riding on top of the
throttle shaft spring and is not touching the pump cam. Only after you
rotate the throttle a bit (with no accel pump action) will the pump cam
touch the lever and produce a pump shot. To fix this, remove the lever and
bend the lever a little more right where you see the "kick-up" bend in the
lever where it's supposed to ride on the cam. By giving the lever more of a
bend, the lever will not hit the shaft spring and will ride on the pump cam
right where it should. This will produce an instant pump shot off idle, and
will solve most of the hesitation/stumble issues associated with these
carbs. Keep in mind that you will need to re-adjust the accel pump lash
adjustment after you bend the arm.
3. Inadequate secondary idle speed setting. On most S/A carbs, the
secondary throttle (idle speed) is fully closed. This causes the primary
idle speed setting to get cranked up too far in order to achieve a
reasonable idle speed, thus exposing too much of the primary transition
slot. This, in turn, will cause an off-idle stumble due to lack of
transition fuel enrichment as the throttle is opened. The primary and
secondary throttles should be open the same amounts at idle - they should
be balanced and see equal airflow.
Forget about swapping pump cams and accel pump nozzles - that's not the
issue, and it won't solve your problems. Fix the pump lever geometry
How To Adjust The Accelerator Pump On Holley Carburetors
How-to adjust the accelerator pump on Holley carburetors to avoid stumbling
and hesitation upon acceleration. Tips include: How to check for the
clearance between the accelerator pump diaphragm arm & operating lever;
how-to select the correct accelerator pump nozzle size, and accelerator
pump cam selection and installation. Additional information can be found on