MSD 6 ignition boxes
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MSD 6 ignition boxes
Have any of you guys tried MSD's ignition boxes? I'm wondering if they are worth the cash for street driving, either in power or MPG.
I'm using a stock Ford dizzy with Crane Cams points replacer, with MSD coil and wires.
I'm using a stock Ford dizzy with Crane Cams points replacer, with MSD coil and wires.
Posting Guru
Joined: Oct 2010
Posts: 1,199
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From: Missouri
In my opinion, the only reason to replace the Duraspark module is for more features; such as a rev limiter. As far as power and MPG is concerned, you won't notice a difference unless there is something wrong with your Duraspark setup in the first place.
Lead Driver
Joined: Sep 2003
Posts: 7,016
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From: SoCal
If you supercharge your engine, or plan to rev it to 8000 rpm or more, an ignition booster would be a good addition. Otherwise, like the other guys said, if your ignition is working properly, or if you want the rev limiting feature, you should not need it.
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
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From: Raphine, Virginia
We're missing something here. You just have the points eliminator if I understand correctly. That does not use a control module. If you are asking about going to a MSD distributor/control module system, then the answer is the same. Keep what you have or convert to Duraspark II system. Entirely diff ballgame.
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Sounds like you've got it - stock points style dizzy with Cranes XR-i points replacer, which does not use an ignition box.
So MSD's claim in more powerful spark and multiple sparks up to 3000 RPM would be no advantage at all for street driving? Seems like it should, but I'm listening to those with experience. Thanks again!
And BTW no plans to exceed 5,500 RPM.
So MSD's claim in more powerful spark and multiple sparks up to 3000 RPM would be no advantage at all for street driving? Seems like it should, but I'm listening to those with experience. Thanks again!
And BTW no plans to exceed 5,500 RPM.
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Postmaster
Joined: Apr 2003
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From: Harrisburg, NE
I have a buddy with an 89 f150 that has a 6 box attached to the tfi (all it took to wire it in, which i did, was run the wires for the coil to it and then two new wires from the box to the coil). its start and idles a little better, but other than that there wasn't much of a difference on a mostly stock engine.
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From: Sanford, NC
I put an MSD6 box on my custom built 351W that I put in my 1981 F100. The reason I
went this way was the Duraspark componets were old and I also replaced the distributor
with a Performance Distributors DUI unit. The truck runs good and as was mentioned above, I think the idle and starting are better with the MSD.
went this way was the Duraspark componets were old and I also replaced the distributor
with a Performance Distributors DUI unit. The truck runs good and as was mentioned above, I think the idle and starting are better with the MSD.
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
Sounds like you've got it - stock points style dizzy with Cranes XR-i points replacer, which does not use an ignition box.
So MSD's claim in more powerful spark and multiple sparks up to 3000 RPM would be no advantage at all for street driving? Seems like it should, but I'm listening to those with experience. Thanks again!
And BTW no plans to exceed 5,500 RPM.
So MSD's claim in more powerful spark and multiple sparks up to 3000 RPM would be no advantage at all for street driving? Seems like it should, but I'm listening to those with experience. Thanks again!
And BTW no plans to exceed 5,500 RPM.
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Thanks again. Everything works well and parts are relatively new.
I drive well over 30,000 miles a year. This truck doesn't see the brunt of that but will be seeing more as my Ranger recieves a 5.0 / T5 transplant over an unkown period of time. Should it take me a year, I could spend as much as $450 on a 1 MPG improvement and come out ahead.
Does any one think that either a DSII or MSD setup will accomplish that? Also I'm game for other ideas.
I drive well over 30,000 miles a year. This truck doesn't see the brunt of that but will be seeing more as my Ranger recieves a 5.0 / T5 transplant over an unkown period of time. Should it take me a year, I could spend as much as $450 on a 1 MPG improvement and come out ahead.
Does any one think that either a DSII or MSD setup will accomplish that? Also I'm game for other ideas.
Postmaster
Joined: Mar 2005
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From: Earth
The multi spark helps on carbed vehicles. Especially on cold starts.
Unless your current system ain't working right it's doubtful you'd see much increase in mileage. One mpg is certainly within the realm of possibility, but not guaranteed.
The HEI conversion is another option if you're just kicking ideas around. Check out gofastforless.com
Unless your current system ain't working right it's doubtful you'd see much increase in mileage. One mpg is certainly within the realm of possibility, but not guaranteed.
The HEI conversion is another option if you're just kicking ideas around. Check out gofastforless.com
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