In this episode I decide to give my 1975 L48 350 SBC full manifold vacuum advance at idle to see if it improves it's efficiency and Stop unplugging your vacuum advance on distributors
Ported vs Manifold Vacuum Advance for your Classic Car vacuum advance! do you hook it to ported / timed vacuum or manifold vaccum? this is a long standing argument and conversation You never run the vacuum advance to a manifold vacuum source regardless of engine size, camhaft size, or any other factor. It ALWAYS goes to ported vacuum.
Most of the time the answer will be manifold vacuum. The question is, when might you use ported vacuum? I talk about this in my Manifold vs Ported Vacuum Advance: Quick Testing Update Thanks to subscriber Kevin Clemence for inspiring this video. Article by Steve Davis and David Vizard:
Manifold vacuum or Ported Ported vs manifold for vac advance?
Run direct vacuum and gain a tuning spectrum that won’t be there with ported Should I Use Ported, Manifold Vacuum Advance or Mechanical Timing Advance?
2:30 error - I should have said 20 in Hg or so. Was reading the meter incorrectly while driving. I don't think a standard V8 can Full Manifold Vacuum = Cooler Engine For The Street. The Ultimate Vacuum Advance Video Part 1
In this video I show the difference between Ported Vacuum and Intake Manifold Vacuum at a few different throttle opening Never Connect Your Vacuum Advance to Ported Vacuum!
improve power, throttle response, and economy!!! this is the most misunderstood item on oldschool carbureted engine tuning. Here are two videos showing what to expect from a ported Vacuum source at the throttle plate (normally used to control vacuum
Fine Engine Tuning With A Vacuum Gauge What is the difference between Manifold & Ported Vacuum Advance This test is all about choosing the features you want and need on your carburetor, and how those features affect your horsepower
Fine tuning- runs better with vacuum advance plugged, even with ported vacuum. #shirts #cars #viral Demo: Ported vs. Manifold Vacuum in 318 w/ Holly 4bbl
One of them on ported, the other on Manifold. The only difference is at idle. Once the throttle is cracked open both values are the same up to I do prefer Manifold over ported as it does run cooler at idle, eliminates run-on after shutting down the engine, Smoother and quieter idle.
WANT TO BUY TUNING INSTRUMENTS? Below are the links of tuning instrument i used on my tutorials VGATE MAXISCAN Here's everything you need to know about using a vacuum gauge as a tuning device. A few great ways to dial things in, and one The number of comments left on videos where I share the fact that there are TWO options for vacuum assisted advance in a
Settling the debate around manifold or ported vacuum for vacuum advance. Ignition timing is essential to proper engine performance and in this video, we explain exactly how it works. We clear up some We Finally Settle the Vacuum Advance Debate
Full Manifold Vacuum or Not Some say manifold vacuumsome say ported. As far as we're concerned, there's only one right way to power your distributors Checking Intake manifold Vacuum for late ignition timing
Ported vs Manifold vacuum advance. : MG Performance Forum : The Port vs Manifold Vacuum | Vintage Mustang Forums Tuning how to set vacuum advance on older cars.
Just another opinion video about what to do with the vacuum can. I've tried them both many times over. Manifold vacuum wins out every time. Much smoother and quieter at idle, Runs about 70
THE TRUTH About Vacuum Advance- What is it and WHY do you need it?? Ignition Timing 101 2-Intake Manifold vs PortedVacuum Comparison With Two Vacuum Gauges
DISTRIBUTOR VACUUM ADVANCERS CONNECTION PORTED AND MANIFOLD Vacuum Advance - Ported, Manifold, or None My Interpretation And again, PORTED vacuum advance from the factory. 🙄😅
Use manifold vacuum to set ideal advance for idle and cruise, then set the mechanical curve for WOT. Also, ported vacuum is the cause of a lot 350 SBC Full manifold vacuum advance at idle, 1975 Corvette Volume 19
Vacuum advance test run Sign up for the CCRC newsletter to receive the latest videos, articles, and tips straight from our experts! A It is more concerned with load on the engine. So as more load is placed on the engine, manifold vacuum decreases, and ported vac increases. But
In this video I talk about three different types of vacuum advance and what I generally use. There are probably ways of tuning All engines use vacuum in some capacity. On older vehicles the carburetors were often designed with different vacuum ports to You need to set up your vacuum lines like this on your engine #shorts
Learn More: In this video, we cover where to attach the various vacuum connections on How Ignition Timing Works: Vacuum and Mechanical Advance Explained!
Ignition or timing advance is often the key to making the most horsepower possible. Deciding on whether you should use ported If it has suction at idle, it is a manifold vac port. If your idle does not change when hooked up it is a ported vacuum location. There are 79 MGB zs carb., ported vs manifold vacuum demo.
Yes I know it's kind of gross but you'll know in a couple of seconds if your advance is good. How To Choose Between Timed or Manifold Vacuum Diagnosing Problems with a Vacuum Gauge
Ported vacuum peak Holley Carb: Ported vs Manifold Vacuum Advance (CARB BASICS PART 1.5)
Fine tuning- runs better with vacuum advance plugged, even with ported vacuum. #shirts #cars #viral. Ported vs Manifold Vacuum: How I am Going to Settle the Debate!
For 68 Charger T shirts, click here Ported or Manifold vacuum? EZ EFI Ported Vacuum Adjustment
Ported vs Manifold Vacuum: Three More Things To Consider insights into running manifold vs ported vacuum to settle and disputes.
Adjusting the older EZ EFI throttle body to decrease and/or eliminate manifold vacuum at idle for "ported" vacuum source. Vacuum advance distributors are your friend, stop disconnecting them
We know a modified engine normally wants vacuum advance on manifold vacuum. What if it's a mild engine? I tried mine on both Bad Vacuum Advance! Ported or Manifold Distributor Vacuum? - CorvetteForum - Chevrolet
The difference between manifold and ported is with manifold as the source at idle the engine is getting the base setting plus the maximum the vacuum advance Unity Motorsports Garage dives into the deep subject of Vacuum Advance for Distributors. We take a look back and discuss this How to understand the difference between manifold and ported vacuum sources
Vacuum Advance - Ported vs Manifold: Which to Use & When !!! The easiest way to check a vacuum advance
The Vacuum Advance Debate! The REAL difference between manifold and ported vacuum
Ported vs Manifold Vacuum | Hot Rod Forum vacuum lines,port of manifold and ported
Ported Vacuum #shorts Carburetor Confusion! What's the Best Setup? | Engine Masters | MotorTrend
Where to Hook Up Vacuum Lines On A Holley Carburetor I explain the theory behind why you should almost always use manifold vacuum to control your vacuum advance on a classic Ported vs. Manifold Vaccum Advance! | Were To Hook It Up And Why | How Are They Different?
Part 2 The Ultimate Vacuum Advance Tuning Guide Ported Vacuum VS Manifold Vacuum For some reason choosing between which type of vacuum to run off the carburetor or TBI EFI is a big controversary. It shouldn't be
This video hows the difference between Intake Manifold and Carburetor Ported Vacuum on a running engine. It also shows the Manifold OR Ported Vacuum Advance?? There is a case to be made and I side with David Vizard! Under a slight load, manifold vacuum drops. Ported increases slightly. Also, and you can try this, ported vacuum can be considerably higher (as
DYI Instructions How to Easily at Home Set up the vacuum lines on a Carburetor on a Car or Truck: Square Body Chevy C10 1969 Shelby 428 CobraJet Ported vs Manifold Vacuum & Vacuum Advance Diaphragm Impact & Testing We discuss the correct ignition vacuum advance source for your classic car and explain why and how it works! #ignitionsystem
Tuning the 5.0. Changed the timing from manifold vacuum to ported vacuum. Timing set to 16 degrees initial 36 total at 3500 rpm. How to set vacuum advance on older cars Manifold vacuum comes from a source BELOW the throttle blades. A ported vacuum connection will not register vacuum until the throttle is opened.
Changing to manifold vacuum instead of ported vacuum will only change your timing at idle. You don't need to worry about changing your timing or Timing advance changed from manifold to ported. Ported vs manifold vacuum for ignition advance? - Don Terrill's
You can gain so much daily driver efficiency by running vacuum advance, it's free…it's there use it. Just a quick update on my testing for the manifold vs ported vacuum advance debate. Stickers and Shirts and Such:
so last time i just did a quick education on vacuum advance and got alot of feedback wanting more info. also some nay sayers so Ported vs. Manifold Vacuum for Vac Advance - The AMC Forum
Ported vacuum or manifold vacuum advance? Which is better? Many automotive YouTubers believe it is the former, but I disagree! Vacuum Advance Timing: Ported Vs. Manifold | Chevy Tri Five Forum In this episode I follow up on Part 1 of what I called The Ultimate Vacuum Advance Tuning video As you can imagine it sparked
Why do you need vacuum advance? Port or Manifold? I give my take on which I prefer. Also, do you use lock washers? You might Vac advance, ported or manifold? | Mustang Forums at StangNet