using GM Delco ignition system Parts

[mrclubike]

DO THESE MODIFICATIONS AT YOUR OWN RISK  !!!!!!!!!!!!!!!!!

Was able to mount up a General Motors early style 4 pin HEI ignition module Part #D1906
Used on all US GM Cars and trucks built  in the late 70's to early 80's
It appears to be working just fine with the stock bean can and a 1.5 OHM Dyna Coil
I mounted to a heat sink I bought at the local electronics store
For a harness I cut an old stock one up I had extra

Next step I will be mounting up a GM DIS coil pack
 
 I am also Looking to modify the Bean can to be able to change out the Hall Affect sensor without taking it  apart   

[mrclubike]

Here is the wiring diagram I used

Top one is with hall effect Bean can
I am not sure how long the hall effect sensor will last with the HEI module
The OEM ignition module supplies the voltage to power the Hall effect and it appears to   filter that voltage some how because it runs about a volt lower than battery voltage to it 



Lower would be with Points 
I see no reason not to use it with points 

[mrclubike]

Here is what it looks like Mounted up

[Justin B.]

Very cool!  I'm not sure about how happy the bean-can Hall sensor will be with this type of experimenting, though.  I've read all kinds of things that users blamed for the demise of their can!

[mrclubike]

I am also a bit concerned about the hall effect also but it is only carrying 15 milliamps
So I am thinking it should be OK

But I am still going to try to fit this Sensor to a Small bracket that will insert thru a Hole cut in the   side of the Bean Can

It is also a GM part used in late 80's

If I am Able to do this Sensor mod it will be a huge improvement in availability of the part and ease of a roadside repair

[JJH]

This is a really cool (and relatively) inexpensive mod!

[wilcom]

This is a really cool (and relatively) inexpensive mod!

You got that right. A HE that can be sourced on the side of the road!!!   I could be turning into a "black box" guy from a staunch "points guy"

Nice work Mrclubike

[Barry]

Very neat installation. 

I predict no side of the road problems.

[skippyc]

What coil resistance do they work with?

[mrclubike]

The original HEI coil (the one mounted in the Dist cap)
has a primary resistance of about .5 to .6 OHMS
But the hall effect sensor triggers the Ign Mod differently than the original trigger did
But all that being said the 4 Pin HEI Ign Mod has been adapted to all kinds of ignition system so it must be very robust and dirt cheap 

The above ME57 Hall Sensor is only $16.00 but they normally cost more but are available
Oreilys list them for about $70.00
But at 16.00 I was willing to try it
I am mounting a standard OEM type Hall sensor first and then when the ME57 comes in i will try to mount it on a bracket also

[mrclubike]

Here is the coil mounted to a  MSD 8871 Coil stacker and the bracket i made to mount all of it
It is  tight  but fits

It has Primary resistance off about 1.2 OHMS
Delco Part #D555

[mrclubike]

Very cool!  I'm not sure about how happy the bean-can Hall sensor will be with this type of experimenting, though.  I've read all kinds of things that users blamed for the demise of their can!

I think you are correct It appears the OEM ignition module  filters the voltage to it
So I think I will not use the HEI ign module with the my original  Hall Effect sensor
But try it with my after market one just in case it goes bad

[mrclubike]

I did find the specifications on the HEM56 hall effect sensor that is used in the bean can 
The operating voltage appears to be 4.5 to 24 volts
It also says it has built in overload protection
 
So I think I will go ahead and continue trying to mount an after market HE and try it

[mrclubike]

Here are the 2 different  Hall effect sensors I have looked at
The middle one is the standard OEM one
The left one is the one above I got off of Ebay
The one on the right I got out of the junk yard
As you can see they are larger than the OEM one
I just don't think I want to hack up my bean can that much to get them to fit
So I am going to stick with the OEM HEM56 HES and mount it to a bracket that bolts in from the out side of the can

[mrclubike]

Here are pictures of the Mounting bracket and the bean can cut  out
 I am waiting for the paint to dry be for I put it all together