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Questions About Crank Triggers

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Old Jan 21, 2008 | 02:13 PM
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Default Questions About Crank Triggers

If you install a crank trigger kit for EFI such as the MSD ir Mallory kits is the trigger ring mounted between the balancer and the pulleys?? If so, does this cause alignment problems with the pulleys or is the ring thin enough that the offset is insignificant?

Thanks
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Old Jan 21, 2008 | 09:21 PM
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Excuse me, but.....................What the heck is a crank trigger??????
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Old Jan 21, 2008 | 09:27 PM
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Originally Posted by VettePower
Excuse me, but.....................What the heck is a crank trigger??????
Ignition component that tells the coil packs when to fire.
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Old Jan 21, 2008 | 09:34 PM
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From: St. Charles Mo
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Gene, Yes, it mounts on the harmonic balancer behind the pulleys. and yes, you have to account for the offset. You probably have enough room on a small block, but on my BB, it interfered with the front crossmember. I didn't want to cut a hunk out of the front crossmember so I went with the dual sync distributor. How are you planning on getting a cam sync?

Bullshark
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Old Jan 22, 2008 | 06:36 PM
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well, the DFI info says you can modify an existing distributor by removing the additional reluctors but all of this is making the dual sync distributor look more appealing. I just thought the actual crank trigger would probably be more accurate.
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Old Jan 22, 2008 | 06:56 PM
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well, the DFI info says you can modify an existing distributor by removing the additional reluctors but all of this is making the dual sync distributor look more appealing. I just thought the actual crank trigger would probably be more accurate.
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Old Jan 22, 2008 | 07:30 PM
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cant help you as far as placement goes other than to say measure the thickness of the disc and put some spacer between the block/heads and accessory's. as for everything else check out MSD's site, they've got pages and pages of instructions on how to install it.

-alex
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Old Jan 22, 2008 | 07:32 PM
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From: St. Charles Mo
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Originally Posted by gyopp
well, the DFI info says you can modify an existing distributor by removing the additional reluctors but all of this is making the dual sync distributor look more appealing. I just thought the actual crank trigger would probably be more accurate.
That's kinda the conclusion I came to with RamJet. I got impatient and decided to get on the road, thinking I could attack direct crank pickup on my next mod

How are you coming along? Have you given any thought to bringing the 408 up here and putting it on an engine dyno or are you going to street/chassis dyno tune it.

Bullshark
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Old Jan 22, 2008 | 10:09 PM
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It's coming along good Bob. My head port work is done and the valve work should be complete and reassembled this week or early next. I have everything else I need for assembly other than the dual sync and pushrods which I will have to check length and order. I would love to get this thing tuned before I put it back in. I will call you about the details of that.
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