[slotracer]

OK, I want to install a MSD 6T, what fire order is the engine, never hooked up one on a 6 cly. It already has the pertronic's installed in it. this is the note from MSD,

Note: The 6A, 6T and 6TN do not require any modifications to run on 4 or 6-cylinder even-fire engines.

The Soft Touch Rev Limiter that is built into the MSD 6AL, 6BTM and 6ALN is programmed for operation on a 8-cylinder engine. If you are installing one of these units on a 4 or 6-cylinder even-fire engine, the ignition must be modified. This is easily achieved through the cylinder select device on the side of the ignition. To program the unit:
1. Locate and remove the round black cover with a single Phillips screw.
2. There are two wire loops, a Red and Blue loop. Refer to the chart in Figure 2 to determine which loop to cut for your application.
3. After cutting the loop(s), turn the wire ends away from each other so they cannot come into contact. Install the cover and screw.
Is it a even fire or odd fire engine?

 

[Woodchuck]

Inline sixes are neither odd nor even as they don't have multiple banks of cylinders. The firing order of Ford's "small-six" is CW-rotation on the distributor and the firing order is 1-5-3-6-2-4 with #1 being the front cylinder and #6 the rear.

My somewhat obvious questions would be what distributor (Load-O-Matic or dual-advance) is installed, and what you are doing with this vehicle that makes you believe you need an MSD unit?

 

[Guest]

I think you are confusing some technical jargon. Even firs and odd fire refer to the number of cylinder on each bank of an engine and how the balance is accomplished. It does not have anything directly to do with the ignition system, per se. Perhaps you are confused with engines that share a spark, which can be called lost spark ignitions systems ?? Help us out here with more and what you are trying to accomplish and why you think even and odd is related to this.

 

[slotracer]

Inline sixes are neither odd nor even as they don't have multiple banks of cylinders. The firing order of Ford's "small-six" is CW-rotation on the distributor and the firing order is 1-5-3-6-2-4 with #1 being the front cylinder and #6 the rear.

My somewhat obvious questions would be what distributor (Load-O-Matic or dual-advance) is installed, and what you are doing with this vehicle that makes you believe you need an unit?

how do you tell what distributor? I know it has the pertronir set-up in it, I have a bunch of MSD Boxes, figured I would just install it for stronger spark

 

[slotracer]

I think you are confusing some technical jargon. Even firs and odd fire refer to the number of cylinder on each bank of an engine and how the balance is accomplished. It does not have anything directly to do with the ignition system, per se. Perhaps you are confused with engines that share a spark, which can be called lost spark ignitions systems ?? Help us out here with more and what you are trying to accomplish and why you think even and odd is related to this.

never installed one in a 6 cly. before, so I never heard of even-odd fire until I read this on MSD instructions, I have heard about switching firing order on BBC's when you swap cams. as said above, just because I have the box and for stronger spark.

 

[Huskinhano]

Basically an odd fire 6 was when a 90* V8 had 2 cylinders lobbed off to create a V6. It ended up being V8 firing order skipping 2 cylinders because you can't have a crank with s 90* firing order divided into 360* six times evenly. This would be the Chevy 4.3 V6 and 76 and earlier Buick V6.

 

[Woodchuck]

how do you tell what distributor? I know it has the pertronir set-up in it, I have a bunch of MSD Boxes, figured I would just install it for stronger spark

Load-O-Matic:

Dual-advance:

 

[Huskinhano]

Bartl, I worry about you having six cylinder distributors at hand. *G*

 

[slotracer]

Load-O-Matic:

Dual-advance:

I have the one in the second picture with the pertronic set-up

 

[Woodchuck]

Okay. Sounds like somebody upgraded your distributor. What do you have for a carburetor? It should NOT have a spark control valve and you should be using manifold vacuum for your spark advance. Now, why, again do you want to add an electronic box that will just be one more part to potentially fail?