I finally got around to installing the 2GDFIS. I only have a couple of hours of drive time, but all seems well. I'll need some more miles to really tell any improvement.

Several people have mentioned moving the the trailing wires over to the leading positions on the distributor. I understand it has advantages in the electrical connection in the distributor. The question is what is the advantage? Do the plugs have to be mapped to specific connection on the distributor (L1, L2)?

 

Yeah, you move the T to L, T1 to L1, and T2 to L2. The advantage is that the spark has one less gap to jump inside the dizzy with this setup, to really understand it, have a look under the cap, and look at the terminals connected to the leading, and the trailing and follow the path across the rotor.

 

Umm wont this throw your timing off? I know the FC ignition is L5 and T20 so if you swaped them it would be firing at the same time as the 2gdfis coils on the L. On the FC ignition the T dose not fire at the same time this is very importaint. When you move them to the L on the dissy dose the dissy fire at the same time as well on the L section?

 

You need not ask yourself from where comes the spark, but from where does the timing 'signal' originate.

 

Not an issue, the trailing ignitor signals the trailing coil when to fire so moving the connections around on the dizzy make no difference except to slight reduction in the air gaps that have to jumped for the spark going to the plugs.

DOH!, I had my reply sitting around in the edit box too long.

 

I get that now that I am not so tierd ;-) Just move the coil over to the L side of the cap.

 

i just made my pc board and soildered all my parts in this week and on the weekend i hope to go pick up the 2nd gen coil pack and install it all up

 

I get the concept of the trailing ignitor fireing the trailing coil irrespective of which post on the dizzy the coil and plug wires are on.

What bothers me is this: I am under the impression there is a relatively fixed relationship between the position of the rotors and the position of the distributor shaft. The distributor button, as I recal, has 4 arms each at about 90' to the ajacent arms, and the rotor button only goes on one way. So isn't there some type of timing relationship between the position of the rotors and the rotor button arm that provides the spark to L1 and L2? If this is true, then moving the trailing wires to the leading positions would seem to change the timing.

Am I failing to understand something?