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Old 12-15-2006, 10:21 AM
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can someone explain aftermarket ignition to me?

OK, like i stated before i have never really dealt with the kinds of parts and such before that i am dealing with on my 383TT build. I am going to be running an MSD 6BTM igntion box, but i honestly have no idea how an aftermarket ignition works.
I wont be using any of the wiring/ECM that originaly came in my '88 TA as i am switching over to carb. So how does an aftermarket ignition hookup? just some hot wires, grounds, then wires to the distributor? What kind of dist. will i want to use?

Any and all info would be appreciated!

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Old 12-15-2006, 11:22 AM
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Ok, by sound of what you wrote, you don't have any of the parts yet. So lets try to steer you in the right direction fist by leaning towards a HEI (well prepped one) vs. all this fancy dancy aftermarket ignition stuff. An HEI will supply all the spark you need and will produce that spark at what ever rpm you so desire to turn that engine at. I had one on a 350 Olds engine and wrung it right up to 6000rpm with no theatrical hysteria going on. They are super easy to hook up, the spark plug wires took longer to put on than plugging in the power/tac wires to the cap.
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Old 12-15-2006, 11:33 AM
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I was told that the MSD 6BTM would be best because i will need some sort of boost retard. Plus i can get one for $200 which is 1/2 the normal price. I want to build the best i can with what i have. Plus that takes away a lot of the detonation problem. I figure if i build it right the first it will be easier than building it again and upgrading parts...
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Old 12-15-2006, 11:57 AM
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The BTM box is good for motors that have high compression or need boost retarded off the line for traction. I would just go with a 6AL box and a good HEI, should be fine.
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Old 12-15-2006, 12:04 PM
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isnt the 6BMT pretty much the same thing, just with the boost retard option? a 6AL is around $200 anyways, so if they are pretty much the same... And i will be taking it to the track so i could use that option alot.
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Old 12-15-2006, 12:16 PM
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Ohhhhhhhh, now I see what the TT is for, twin turbo. Heheheheeeeeeee if you really want to get your hands dirty you can find one of those smog era dual chamber vacuum advance advance/retard chambers and rig it up on the distributor or you can rig up some kind of hobs switch/s to bleed off vacuum. However you more than likely will be better off going to solid state route with the boost control MSD box. Have fun, is this twin turbo setup done yet?
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Old 12-15-2006, 01:02 PM
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Quote:
Originally Posted by slow'n'steady
OK, like i stated before i have never really dealt with the kinds of parts and such before that i am dealing with on my 383TT build. I am going to be running an MSD 6BTM igntion box, but i honestly have no idea how an aftermarket ignition works.
I wont be using any of the wiring/ECM that originaly came in my '88 TA as i am switching over to carb. So how does an aftermarket ignition hookup? just some hot wires, grounds, then wires to the distributor? What kind of dist. will i want to use?

Any and all info would be appreciated!
Use an MSD distributor to trigger the 6BTM. You only need the mag trigger distributor, like these:

http://www.msdignition.com/pdf/85561...1_frm25672.pdf

You can see all the MSD instructions at

http://www.msdignition.com/1download.htm
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Old 12-15-2006, 02:44 PM
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Quote:
Originally Posted by QuenchPiston
is this twin turbo setup done yet?
well i got the T-70 turbos, BOV, WGs, the manifolds are on the way, still waiting for the rods/pistons though. Kinda buildin it based on what i can get for a good deal at the time. should be DONE (driving) by early summer at the latest!
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Old 12-15-2006, 02:55 PM
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Jus picked up a 6BTM for $185...
can i use any dist. with a crank trigger?
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Old 12-15-2006, 03:39 PM
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You can use any distributor, just be sure it's phased and has no advance mechanism. If you're going to use a crank trigger, MSD makes specific distributors for that purpose. They are shorter than the normal ones because they don't have much in them.
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