1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

jacobs ignition!

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Old 10-12-07, 05:55 PM
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jacobs ignition!

i plan on going with a jacobs fc1000 ignition box instead of msd... now should i go with the jacobs epoxy canister coils or the "square" epoxy coils?
Old 10-13-07, 09:51 AM
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I would go with a standard 2nd gen leading coil and a stock fb coil on the trailing. I presume that you will be running the box on the leading side only.
Old 10-13-07, 11:15 AM
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^I don't think that answered his question...
Old 10-13-07, 11:34 AM
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I never was interested in Jacobs. Sorry, that didn't answer the question either.

I'm with the Doc. Stock coil on trailing and a 2nd gen leading coil on leading.
Old 10-13-07, 02:19 PM
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i was planning on only doing the leading, but can the stock gen 2 coils handle a captive discharge system? i was just going to copy and msd system dual lead coil direct fire.. i was just wondering what coils are better to use
Old 10-13-07, 02:26 PM
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It's better to use a coil designed specifically for capacitive discharge. The 2nd gen coil should work though.
Old 10-13-07, 03:17 PM
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Originally Posted by Jeff20B
It's better to use a coil designed specifically for capacitive discharge. The 2nd gen coil should work though.
so what would you recommend the canister or squares? i havnt seen too many people use squares and they are 2-3x more expensive
Old 10-13-07, 06:58 PM
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With no personal knowledge on the subject, the guys at RX7.com are fans of Jacobs and sell only the canister style coils.
For everyone who supports the 2nd Gen coil, can it supply enough power for a blow-thru turbo setup? I'm running 2GCDFIS right now and I'm wondering what to upgrade as far as the ignition system goes.
Old 10-13-07, 07:21 PM
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Originally Posted by inuissus_cendi
With no personal knowledge on the subject, the guys at RX7.com are fans of Jacobs and sell only the canister style coils.
For everyone who supports the 2nd Gen coil, can it supply enough power for a blow-thru turbo setup? I'm running 2GCDFIS right now and I'm wondering what to upgrade as far as the ignition system goes.
Yes it does. I would recomment the Transistor Trick as well.

As far as the OP is concerned, get the canister and stick them in the stock place. I did that with my MSD Blaster2 coils.
Old 10-13-07, 07:32 PM
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Originally Posted by inuissus_cendi
With no personal knowledge on the subject, the guys at RX7.com are fans of Jacobs and sell only the canister style coils.
For everyone who supports the 2nd Gen coil, can it supply enough power for a blow-thru turbo setup? I'm running 2GCDFIS right now and I'm wondering what to upgrade as far as the ignition system goes.

The 2nd gen coils are the same in the Turbo or N/A applications.
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