Ignition upgrade ?

[Mike66Chryslers]

When you look at local parts stores none of them show the ecu’s on there sites unless I’m looking them up wrong!!

They are cheap enough that you can keep a spare ECU and ballast resistor in your glove box. Try searching for an "LX-101" That is the Standard Motor Products part number for the Mopar ECU.

ECU is a computer.

Some parts stores might not call it an ECU, but lots of documentation refers to the Mopar ignition control module as an ECU, which stands for "Electronic Control Unit". They are not wrong.

 

[LocuMob]

Some parts stores might not call it an ECU, but lots of documentation refers to the Mopar ignition control module as an ECU, which stands for "Electronic Control Unit". They are not wrong.

And parts stores don't go by what Ma Mopar called it. Some may, none that I ever worked at did. Found it on O'reilly's under ICU, shoes nothing for an ECU. 73 challenger with a 340 is what I looked under, first thing to pop up.

 

[Mike66Chryslers]

And parts stores don't go by what Ma Mopar called it. Some may, none that I ever worked at did. Found it on O'reilly's under ICU, shoes nothing for an ECU. 73 challenger with a 340 is what I looked under, first thing to pop up.

I was agreeing with you when I said, "Some parts stores might not call it an ECU". If you go to jegs.com or summitracing.com and just search for "mopar ecu", the first two hits at each site are the correct product. So some places do recognize the term, others do not. As usual, it's better if you have a part number to search with. However, you also seemed to imply that it is wrong of him to call it an ECU at all. It's not.

 

[LocuMob]

I was agreeing with you when I said, "Some parts stores might not call it an ECU". If you go to jegs.com or summitracing.com and just search for "mopar ecu", the first two hits at each site are the correct product. So some places do recognize the term, others do not. As usual, it's better if you have a part number to search with. However, you also seemed to imply that it is wrong of him to call it an ECU at all. It's not.

Yeah, I was too lazy to type "we are both right".

I was just approaching it as if someone was to go into a parts store, didn't even think of jegs or summit, as I don't get the basics from them. I stop by my local expensive parts store so I have one on Saturday morning when I need something. Sadly then I'm waiting until Monday for the basics. I miss the 90's when you could rebuild a Model A with a few phone calls and as few stops for picking up the needed parts. That and good engine shops close by.

 

[polara383500]

And parts stores don't go by what Ma Mopar called it. Some may, none that I ever worked at did. Found it on O'reilly's under ICU, shoes nothing for an ECU. 73 challenger with a 340 is what I looked under, first thing to pop up.

Yeah but isn’t there a diff between the SB & BB

 

[Mike66Chryslers]

Yeah but isn’t there a diff between the SB & BB

Different DISTRIBUTORS for small block vs big block, and B vs RB engines, but the Mopar ECU doesn't care which direction the distributor spins, or even if it's a slant-6 or a V8. The early factory-installed ECUs had 5 pins and required a double ballast resistor. All the ones you get today have 4-pins in the connector and do not require a double ballast resistor.

 

[FURYGT]

Did someone say ignition modules? Well here is my self promotion for them from the same company that makes the solid state electronic voltage regulators that I sell. I've been selling both of these products for 15 or more years.

High Quality Mopar Replacement Or Conversion Ignition Module / ECU Black 5-Pin | eBay

 

[CBODY67]

@Big John From a Google search.

 

[polara383500]

@Big John From a Google search.

Interesting read!

 

[Big_John]

Did someone say ignition modules? Well here is my self promotion for them from the same company that makes the solid state electronic voltage regulators that I sell. I've been selling both of these products for 15 or more years.

High Quality Mopar Replacement Or Conversion Ignition Module / ECU Black 5-Pin | eBay

Do you have the 4 pin versions too? Those can be used with the single ballast resistors, or for that matter, the dual ballast resistors, as they just bypass (IIRC) one side of the dual.

 

[FURYGT]

Do you have the 4 pin versions too? Those can be used with the single ballast resistors, or for that matter, the dual ballast resistors, as they just bypass (IIRC) one side of the dual.

I used to but they did not sell so I stopped carrying them. I have no problems using a 5-pin with with a heavy duty single ballast resistor using a wiring diagram that I found on line. As I recall, on a '68 a wire was added to the ballast resistor terminal with a brown wire going to it.

 

[Big_John]

I used to but they did not sell so I stopped carrying them. I have no problems using a 5-pin with with a heavy duty single ballast resistor using a wiring diagram that I found on line. As I recall, on a '68 a wire was added to the ballast resistor terminal with a brown wire going to it.

Interesting. People look at what they have and don't understand.

I wouldn't be surprised if that replacement 5 pin was the same internally as the 4 pin.