Opti Options??
Teching In
Joined: Jul 2007
Posts: 34
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I never justified spending the extra on the MSD unit when the Delco's have worked really well for me personally (swapped 2 on my z28).
The MSD is billet aluminum and has the option of +/-10 degree timing (iirc - im not sure if this is correct.)
Both should be fine units and definitely would be my top2 choices, I'll never put on a refurb or auto zone one if I can help it.
The MSD is billet aluminum and has the option of +/-10 degree timing (iirc - im not sure if this is correct.)
Both should be fine units and definitely would be my top2 choices, I'll never put on a refurb or auto zone one if I can help it.
TECH Senior Member
iTrader: (3)
Joined: Oct 2006
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From: Decatur, TN (N-W of Athens)
So vent the Delco yourself! One guy drilled a hole in the cap and put in a barb fitting and ran a vacuum line to it. Most here then silicone the cap to the opti to ensure no moisture, which is basically what MSD did but with a nice rubber o-ring (or I think at least, I've never taken an opti apart to know if stock has one or doesn't).
Teching In
Joined: Jul 2007
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Here's a link on a how to for venting a non vent opti: http://www.fierolt1.com/lt1_95_up_OptiReplace.htm
Goodluck!
Goodluck!
Teching In
Joined: Sep 2008
Posts: 13
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Depends on whats done to your car and high how you spin the motor. Personally anything over 6k the stock opti rotor can't handle IMO. MSD unit is a better quality unit. You can check out my MSD opti page for more info. CLICK HERE
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...and yeah,i'm bored...you wanna race?
i apologise if i offended you.
TECH Senior Member
iTrader: (3)
Joined: Oct 2006
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From: Decatur, TN (N-W of Athens)
