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View Full Version : Ignition Upgrades - TFI/Jacobs


Subconscious
04-18-2003, 08:53 AM
I've read up on the TFI upgrade, it sounds simple and straight-foreward enough.

Would a Jacobs ignition system further improve the ignition? I've used one before, years ago on a '77 FJ-40, and it made a huge difference. What I'm trying to figure out is, what would be the best set up:

1. TFI upgrade alone
2. Jacobs ignition system alone
3. TFI and Jacobs ignition system

Anyone ever try 'em together?

89grand
04-18-2003, 09:10 AM
I've never tried the two together but I have done the TFI upgrade only and I have definetly seen improvements in idle smoothness and freeway speed passing power. I'm going to swap out the duracrap module and replace it with a MSD6A eventually.