Msd Vacuum Advance Hose Size

Plug the vacuum advance into a ported vacuum source and check the idle rpm.

Msd vacuum advance hose size.

Here s my set up if it helps. What size vacuum line do i need. They are made of steel and feature cadmium plating for maximum durability. We ll bet money the rpm increased.

7 32 on 1 4 5 32 on 3 16 etc. Starts hg vacuum is measured in inches of mercury mercury has the chemical symbol hg thus manifold vacuum is measured and referred to as hg. At idle the engine needs additional spark advance in order to fire that lean diluted mixture earlier in order to develop maximum cylinder pressure at the proper point so the vacuum advance can connected to manifold vacuum not ported vacuum more on that aberration later is activated by the high manifold vacuum and adds about 15 degrees of spark advance on top of the initial static. Not sure of the size but it is smaller than american vacuum advance hose.

I have been reading up on it. Msd streetfire distributor edelbrock carb. Do not forget to plug the original vacuum advance hose. Seems to be a debate on full or timed vacuum.

I went to napa and purchased next to the smallest slightly larger than windshield washer hose. I guess these are different diameter sizes of vacuum lines. You can t fix stupid but you can fix ignorance 62 chevy ii turbo 6. Most automotive vacuum hoses use 1 32 smaller id than the od of the hose nipple to make a tight fit.

Number 724 16 is a vacuum advance unit that will pull 16 degrees of vacuum advance maximum. Does anyone know what are the correct vacuum lines i should get and where i can order them. What port do i hook the distributor line to. Seems like finding an answer to that is pretty tough.

10 5 1 355 and here are the cam specs. Find msd ignition 8463 msd vacuum advance mechanisms and get free shipping on orders over 99 at summit racing. Figure 5 advance stop bushing chart. I have looked online and found that there are different sizes.

These msd vacuum advance mechanisms are designed to replace the vacuum advance chamber on the msd hei distributor. Vacuum advance control unit will pull in at its maximum i e. Now switch the vacuum advance to a direct source of vacuum and again check the idle rpm.