16v and MSD 7 ?'s
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16v and MSD 7 ?'s

  1. #1
    Senior Member zacho!'s Avatar
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    Default 16v and MSD 7 ?'s

    My last trip out, the MSD 6m2 burnt up and damn near ruined the trip prior to launching my boat. By-passed the box and with a ready to run distributor, was able to have a decent weekend. Anywho, my local blown v-drive drag boat buddy said if I was smart I would upgrade to a 16 volt system and MSD 7al.
    I like what the digital 7 has to offer and have no need to be programable.
    My question is: What do you really fast guys - that used to be in the 90's - think about 16v charging systems, and MSD digital 7?
    thanks for the input,
    Zach.

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    B1 Racing cs19's Avatar
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    Why do you feel the need for a 16v system?

    If your not going to use the features of the 7531 Id take a serious look at the MSD 6al 2. Ive looked at them and what they have to offer and it seems perfect for a hotrod deal or even mild race deal, its got alot of features and alot cheaper than a 7531 dig 7. The 7al2 is played out like sega! Dont even bother unless you got a killer deal on one.

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    Senior Member zacho!'s Avatar
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    The 16v system simply because my buddy thats been racing as long as I've been alive, suggested I do so.
    The Digital 7 plus just because, I like the start retard and the idea that it would work well with nitrous. Again, I've only started getting things dialed the last season with my (1st) boat, yet owned it for just about 6 years... So this year, my goal is to get every last mph outta what i got. Thanks for the reply
    BTW pump/shoe tweeks are next as well..

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    B1 Racing cs19's Avatar
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    MSD 6al 2 is what I would suggest unless price is no object for you.

    12 v system with alternator is just fine.

    The 6al2 is pretty cool and has a bunch of features like all the cool nitrous features, launch retard, etc. the only thing it doesnt have that you mentioned is the start retard, atleast I didnt see it on this page, you might look into that a little more. Im surprised it doesnt have that.. The 7531 is what most of us racers run but it might be over kill, then they have a tottally new deal out now called the power grid that will replace the 7531 if you realy want something real advanced. The 7530 might be something to look into also? I think its the same as the 7531 only doesnt have a launch controller but if you plan on doing any racing you should get the 31.

    http://www.jegs.com/InstallationInst...1/121-6530.pdf

  7. #5
    It's a sickness Eliminator#1's Avatar
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    Quote Originally Posted by cs19 View Post
    MSD 6al 2 is what I would suggest unless price is no object for you.

    12 v system with alternator is just fine.

    The 6al2 is pretty cool and has a bunch of features like all the cool nitrous features, launch retard, etc. the only thing it doesnt have that you mentioned is the start retard, atleast I didnt see it on this page, you might look into that a little more. Im surprised it doesnt have that.. The 7531 is what most of us racers run but it might be over kill, then they have a tottally new deal out now called the power grid that will replace the 7531 if you realy want something real advanced. The 7530 might be something to look into also? I think its the same as the 7531 only doesnt have a launch controller but if you plan on doing any racing you should get the 31.

    http://www.jegs.com/InstallationInst...1/121-6530.pdf
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    Default msd 7 series

    I do not see where the 6al-2 has any features (retard or accessories activation) that would help with a nitrous application. The 7 plus series seems to have features only a rocket scientist might appreciate. The 7al-3 (7530) seems to be the most user freindly with multiple rev limits, start retard and multiple retard stages (4) to help with nitrous applications. Also, the six series seems to be marginal in compression ratios above 12:1
    armandshammer

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    031 RIVER4FUN's Avatar
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    Take a look at the Digital 6. It has nitrous and start retard & more. Works great for my deal.
    I may be growing older, but I refuse to grow up!

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    Default msd

    Thanks, I had not read up on the 6al plus. Mine just has the two rotary dials for rev limits. I am considering an upgrade to the 7 series because I will end up with a little over 13:1 compression with the new heads I am putting on for next season. Msd recommends the 7 series at higher compression. Any thoughts along these lines?
    armandshammer

  11. #9
    Senior Member zacho!'s Avatar
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    Thanks for all the replies, it kinda sounds like 16v is pretty much not needed and if the ability to upgrade to a 7series, that would be the hot ticket. I like the idea of "idiot" dials on digi7 and dont think I have enough motor to benefit from programable system.
    Thanks again for the input.

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