Using ported vacuum will not advance the timing at idle which is where you want the. Which to use & when !!! Also, the initial mechanical advance when the vehicle idles also needs adjusting to at least 14 degrees. So if you use ported vacuum you can retard timing at idle (good for emissions) and once throttle starts to open you have manifold vacuum at distributor (timing advances for performance). It has no part in the total timing equation.
502k views 3 years ago ignition timing secrets: If it does not, manifold vacuum advance will improve idle quality and cooling. Which to use & when !!! As we’ve seen, this creates a light mixture density in the chamber that requires more. Web 0:00 / 15:30.
But at wot, the vacuum drops to near zero and vacuum advance is removed and the total timing then is established by the initial plus the mechanical advance. Here is a nice explaination i found on internet: Web a partial throttle opening creates manifold vacuum—let’s use a number of 15 inches of mercury (hg). Web ported vacuum is 0 at idle and the same as manifold vaccum at cruise and wot. Which to use & when !!!
Ignition Timing, Points Adjustment, Distributors
Or should i say which is preferred? If it does not, manifold vacuum advance will improve idle quality and cooling. Web 0:00 / 15:30. Web ported vacuum is 0 at idle and the same as.
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Web at part throttle, high manifold vacuum moves the diaphragm in the vacuum advance canister on the distributor to add more timing. Web which vacuum source is correct? Here is a nice explaination i found.
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Or should i say which is preferred? Web a partial throttle opening creates manifold vacuum—let’s use a number of 15 inches of mercury (hg). Web if you have an engine with a functioning egr valve,.
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502k views 3 years ago ignition timing secrets: Web the vacuum advance should be at least 10 degrees when on the manifold vacuum port. Web if you have an engine with a functioning egr valve,.
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I've always tapped into manifold vacuum for vacuum advance, some use ported, just wondered what the consensus was here, it's funny how something so apparently black or white could have so many differing opinions, but.
Ignition Timing, Points Adjustment, Distributors
Web vacuum advance has absolutely nothing to do with total timing or performance, as when the throttle is opened, manifold vacuum drops essentially to zero, and the vacuum advance drops out entirely; Web the vacuum.
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Or should i say which is preferred? Here is a nice explaination i found on internet: As we’ve seen, this creates a light mixture density in the chamber that requires more. Web ported vacuum is.
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Web vacuum advance has absolutely nothing to do with total timing or performance, as when the throttle is opened, manifold vacuum drops essentially to zero, and the vacuum advance drops out entirely; Web 0:00 /.
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Here is a nice explaination i found on internet: Web at part throttle, high manifold vacuum moves the diaphragm in the vacuum advance canister on the distributor to add more timing. The vacuum advance should.
Ported or Manifold Distributor Vacuum? CorvetteForum Chevrolet
It has no part in the total timing equation. So if you use ported vacuum you can retard timing at idle (good for emissions) and once throttle starts to open you have manifold vacuum at.
Here is a nice explaination i found on internet: As we’ve seen, this creates a light mixture density in the chamber that requires more. Web the vacuum advance should be at least 10 degrees when on the manifold vacuum port. Web manifold vacuum advance doesn't change the total at wot, only adds the advance at part throttle where the extra advance will add engine responsiveness and torque when the cylinders are not getting filled to full capacity with wide open throttle blades. Web ported vacuum is 0 at idle and the same as manifold vaccum at cruise and wot.
Which to use & when !!! I've always tapped into manifold vacuum for vacuum advance, some use ported, just wondered what the consensus was here, it's funny how something so apparently black or white could have so many differing opinions, but the best arguments seem to be made. Here is a nice explaination i found on internet: The vacuum advance should be unplugged when adjusting the mechanical advance.
Web Manifold Vacuum Advance Doesn't Change The Total At Wot, Only Adds The Advance At Part Throttle Where The Extra Advance Will Add Engine Responsiveness And Torque When The Cylinders Are Not Getting Filled To Full Capacity With Wide Open Throttle Blades.
So if you use ported vacuum you can retard timing at idle (good for emissions) and once throttle starts to open you have manifold vacuum at distributor (timing advances for performance). But at wot, the vacuum drops to near zero and vacuum advance is removed and the total timing then is established by the initial plus the mechanical advance. Web if you have an engine with a functioning egr valve, ported vacuum advance is for you. Web which vacuum source is correct?
It Has No Part In The Total Timing Equation.
Web ported vacuum is 0 at idle and the same as manifold vaccum at cruise and wot. As we’ve seen, this creates a light mixture density in the chamber that requires more. Also, the initial mechanical advance when the vehicle idles also needs adjusting to at least 14 degrees. Which to use & when !!!
Using Ported Vacuum Will Not Advance The Timing At Idle Which Is Where You Want The.
502k views 3 years ago ignition timing secrets: Web vacuum advance has absolutely nothing to do with total timing or performance, as when the throttle is opened, manifold vacuum drops essentially to zero, and the vacuum advance drops out entirely; Web a partial throttle opening creates manifold vacuum—let’s use a number of 15 inches of mercury (hg). Web mechanical advance relies on one input, and one input alone:
I've Always Tapped Into Manifold Vacuum For Vacuum Advance, Some Use Ported, Just Wondered What The Consensus Was Here, It's Funny How Something So Apparently Black Or White Could Have So Many Differing Opinions, But The Best Arguments Seem To Be Made.
If it does not, manifold vacuum advance will improve idle quality and cooling. Or should i say which is preferred? The vacuum advance should be unplugged when adjusting the mechanical advance. If the engine needs to meet emissions at idle, ported vacuum will help.
Web manifold vacuum advance doesn't change the total at wot, only adds the advance at part throttle where the extra advance will add engine responsiveness and torque when the cylinders are not getting filled to full capacity with wide open throttle blades. 502k views 3 years ago ignition timing secrets: So if you use ported vacuum you can retard timing at idle (good for emissions) and once throttle starts to open you have manifold vacuum at distributor (timing advances for performance). Using ported vacuum will not advance the timing at idle which is where you want the. Web a partial throttle opening creates manifold vacuum—let’s use a number of 15 inches of mercury (hg).
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