Vacuum advance dist recommendation?

[eschaider]

This is easily the best non-EFI distributor-based ignition system I have ever seen or used; click here =>https://progressionignition.com.

A friend has a 68-muscle car with a lumpy cam and poor idle vacuum. It was extremely difficult to get a new (brand name omitted) vacuum-based system to work properly because of the very low idle vacuum the lumpy cam produced. This distributor makes it a walk in the park. There are no mechanical adjustments in the distributor.

The distributor controls ignition timing 100% electronically. Your smartphone is used for tuning and also to see real time data from the engine using the free app that runs on both iOS and Android phones

Because this distributor's timing is set using a timing map like an EFI system uses, the manifold vacuum, or lack of it at low engine speeds, had no effect at all on my friend's car. You could command the exact amount of advance you wanted, exactly where you wanted it, and the distributor did precisely what you told it to do!!

A couple of other niceties are that you access all the features with your smartphone, and when you park the car, the smartphone can disable the ignition for theft prevention. There are many other nice features, but in the simplest of terms, this is one kick-ass distributor based ignition with the programmability/adjustability of an EFI-based ignition.


PostScript:

Here is a YouTube link on how to use the theft prevention feature; click here => Theft Prevention Demo

[Davidless]

Originally Posted by eschaider

This is easily the best non-EFI distributor-based ignition system I have ever seen or used; click here =>https://progressionignition.com.

A friend has a 68-muscle car with a lumpy cam and poor idle vacuum. It was extremely difficult to get a new (brand name omitted) vacuum-based system to work properly because of the very low idle vacuum the lumpy cam produced. This distributor makes it a walk in the park. There are no mechanical adjustments in the distributor.

The distributor controls ignition timing 100% electronically. Your smartphone is used for tuning and also to see real time data from the engine using the free app that runs on both iOS and Android phones

Because this distributor's timing is set using a timing map like an EFI system uses, the manifold vacuum, or lack of it at low engine speeds, had no effect at all on my friend's car. You could command the exact amount of advance you wanted, exactly where you wanted it, and the distributor did precisely what you told it to do!!

A couple of other niceties are that you access all the features with your smartphone, and when you park the car, the smartphone can disable the ignition for theft prevention. There are many other nice features, but in the simplest of terms, this is one kick-ass distributor based ignition with the programmability/adjustability of an EFI-based ignition.


PostScript:

Here is a YouTube link on how to use the theft prevention feature; click here => Theft Prevention Demo

Very interesting, any experience with their customer service?

[Mark IV]

David,

Look at a Pertronix "factory cast look" distributor, has vacuum advance and a built-in ignition system with a settable rev limiter. I have in my car and have been pleased with it. https://www.summitracing.com/parts/p...4610/make/ford

[eschaider]

Originally Posted by Davidless

Very interesting, any experience with their customer service?

Perhaps the best possible, never needed it!

[Davidless]

Originally Posted by eschaider

Perhaps the best possible, never needed it!

I’m liking that dist, think that’s the one! I’m guessing it come with a steel gear, didn’t see anything on their site

[eschaider]

Don't know. Best way to find out is contact them.

[Mark IV]

Originally Posted by Davidless

I’m liking that dist, think that’s the one! I’m guessing it come with a steel gear, didn’t see anything on their site

Yes, a steel gear for steel roller cam. Red the description on Summit. Again, never had needed Pertronix customer service. It might suck, but I wouldn't know.

[NROTOXIN]

Originally Posted by Davidless

I’m liking that dist, think that’s the one! I’m guessing it come with a steel gear, didn’t see anything on their site

From the Progression Ignitions product description:
"Distributor gear is melonized steel. Compatible with flat tappet cams and hydraulic roller cams."

[Davidless]

Originally Posted by NROTOXIN

From the Progression Ignitions product description:
"Distributor gear is melonized steel. Compatible with flat tappet cams and hydraulic roller cams."

Hmm
Melonized steel is a salt bath Ferritic Nitrocarburize procedure which uses a cyanide base. The process is accomplished at temperature around 1050F. It is usually (but not in all cases) applied to low alloy steels to form a surface generally of iron nitrides.

I'm guessing it can be used as a substitute when a steel gear is specified?

Summit:
Melonized or Hardened Steel
Heat treated for durability.
Slick surface is compatible with any type of cam.
Often used by the OEM for long life.
Generally used as the default gear on replacement distributors.

Today, GM and Ford both use melonized gears in several of their street crate engines equipped with steel camshaft cores. Because of their wear properties, melonized gears are a good fit for cars with either ductile iron camshafts or cams manufactured from billet steel. Melonized gears are compatible with conventional iron core camshafts too.