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V8-HP Thunderbolt IV Ignition Module

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Old 03-08-2019 | 05:36 PM
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Lunatic Fringe
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Default V8-HP Thunderbolt IV Ignition Module
Anyone have one they are willing to part with?

Thanks
Jim
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Old 03-09-2019 | 05:44 AM
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https://www.crowleymarine.com/parts/....cfm?q=17316A1

I think this is the Merc number your looking for . Shows a few new available .
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Old 03-09-2019 | 07:39 AM
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swap shop

Thunderbolt distributors and Ignition
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Old 03-09-2019 | 08:36 AM
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He's looking for the V8 HP module, they all have different timing curves
Last edited by F-2 Speedy; 03-09-2019 at 08:42 AM.
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Old 03-12-2019 | 02:14 PM
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Originally Posted by F-2 Speedy
He's looking for the V8 HP module, they all have different timing curves
Confused. I believe mine is V-8 and not the V-6? Did not the HP 500 come with V-8 module on Thunderbolt IV.

Thanks.

Ed
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Old 03-12-2019 | 02:18 PM
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Originally Posted by fandango
Confused. I believe mine is V-8 and not the V-6? Did not the HP 500 come with V-8 module on Thunderbolt IV.

Thanks.

Ed
yours in the swap shop is a V8-24S
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Old 03-12-2019 | 03:52 PM
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Thought the V8 HP ? was with the Merc factory rev limit like my Bulldog540. I can look when I get home. That's why I posted the link .
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Old 03-12-2019 | 04:26 PM
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It was my understanding that all of the IV modules were advance only. Rev limiting needed to come from another box.
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Old 03-12-2019 | 04:39 PM
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Originally Posted by Lunatic Fringe
It was my understanding that all of the IV modules were advance only. Rev limiting needed to come from another box.
is this a twin application,
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Old 03-12-2019 | 05:45 PM
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Yes, supercharged. I may try the v6-14s sometime this summer, but right now I just want to replace the bad existing one for the start of the year.
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