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lt1 msd optispark any good???

This is a discussion on lt1 msd optispark any good??? within the LT1 forums, part of the Vehicle Specific category; i have a 94 corvette with the early style non vented optispark in it. im debating on whether to buy ...

  1. #1
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    lt1 msd optispark any good???

    i have a 94 corvette with the early style non vented optispark in it. im debating on whether to buy a new oem ac delco optispark and install the 96 revised vacuum hose harness with some modifications or just buy the more expensive msd unit. the msd claims that it has a fresh air vent. anybody out there know anything about these??? thanks..............jeff

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    Homebrew Master irishpenguin13's Avatar
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    Arctic White
    1997 Trans Am

    i just got the GM Performance (Ac delco) opti-spark. everyone claims to go OE on it. i still havent heard of anyone using the MSD. probably cuz its a billion dollars.

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    Member jasonisdn's Avatar
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    Quote Originally Posted by irishpenguin13 View Post
    i just got the GM Performance (Ac delco) opti-spark. everyone claims to go OE on it. i still havent heard of anyone using the MSD. probably cuz its a billion dollars.
    actually its not to bad, go to camaroz28.com and hit the lt1 tech forum and search for it a few guys are using them . ony 1 so far has had a issue.

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    accel is also making one now. it is half the price of the msd

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    Member jasonisdn's Avatar
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    Quote Originally Posted by 6089wally View Post
    accel is also making one now. it is half the price of the msd
    read the build specs on the accel , the msd is built far better.

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    Homebrew Master irishpenguin13's Avatar
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    how much difference is there from the MSD and the Ac delco? wait, the msd has the timing advance right?

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    95 LS, yes it says LS

    MSD has I think 5 deg. advancment.

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    Senior Member 440 rwhp trans am's Avatar
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    msd has 5=/- deg. advancement and im going to order one soon.http://www.msdignition.com/2006/06-4.htm

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    Member jasonisdn's Avatar
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    Quote Originally Posted by irishpenguin13 View Post
    how much difference is there from the MSD and the Ac delco? wait, the msd has the timing advance right?
    i dont feel like looking this up to make sure i am right but i belive the msd has real bearings and the oem and ac have brushes. theres a big strength issue just on the point alone.

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    i read some forums on camaroz28.com and quite a few people are having some troubles with the msd. my ac delco has 80,000 with no symtoms and hasnt been changed yet. just reading all of these horror stories about the stock optispark made me want to change it as preventive maintenance. gm recommends changing them every 60,000mi. i think i will go ahead and get the ac delco. thanks for the opinions..........jeff

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    Senior Member 5.0THIS's Avatar
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    Quote Originally Posted by newtovetts View Post
    i read some forums on camaroz28.com and quite a few people are having some troubles with the msd. my ac delco has 80,000 with no symtoms and hasnt been changed yet. just reading all of these horror stories about the stock optispark made me want to change it as preventive maintenance. gm recommends changing them every 60,000mi. i think i will go ahead and get the ac delco. thanks for the opinions..........jeff

    The optispark is one of those things IMO that... "if it aint broke, dont fix it"...

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    Quote Originally Posted by 5.0THIS View Post
    The optispark is one of those things IMO that... "if it aint broke, dont fix it"...
    However, when it DOES break, you TOW it home from wherever.

  13. #13
    6SpeedZ
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    1993 Camaro

    I replaced my optispark with a MSD kit. I also changed to iridium plugs and MSD wires... I felt a pretty good change in the rev/power/smoothness all around the RPM range... as always, never touch a wire while the car is running.. its just not smart man. heh

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