LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Questions about stock optispark - rotor breaking?

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Old Jan 24, 2006 | 06:23 PM
  #1  
DarkHorse's Avatar
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From: Akron, Ohio
Questions about stock optispark - rotor breaking?

Chimed in on a discussion on impalassforums.com regarding the new MSD cap/rotor kit and the need to "upgrade" using it.

I was lead to believe, by searching, that the problem with the optis was directly related to water, moisture, condensation, etc... but am hearing now that the rotors are falling apart inside the factory optis?

Has anyone experienced this occurrence?

Has MSD effectively eliminated the moisture problem in their cap/rotor kit? If this is the case i'd gladly spend the $150 to get one - but if not, what's the advantage of using an MSD cap/rotor kit that cost almost as much as a replacement opti?
Old Jan 24, 2006 | 07:43 PM
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Re: Questions about stock optispark - rotor breaking?

Ive never seen it happen on a slower/stock car.

Fast cars which rev hard into the upper 6ks will break the rivets out of the stock rotor imploding it internally. Makes quite a mess.
Old Jan 24, 2006 | 07:59 PM
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Re: Questions about stock optispark - rotor breaking?

I thought I broke the rotor on my opti when the car died, untill it restarted after it got towed home. Turned out that I had about 2 teaspoons of oil in the bottom of the opti case and the optical sensor was shot.

Last edited by Evil Eric; Jan 24, 2006 at 08:02 PM.
Old Jan 24, 2006 | 08:21 PM
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Re: Questions about stock optispark - rotor breaking?

happened to javier97z28 in the burnout box. the contact just fell off of the rotor. think his car shifts at 6300? burns out in 2nd gear at 6200 . on my car it was the optical sensor that was bad. made noise when spun by hand and had some corrotion on it.
Old Jan 24, 2006 | 09:17 PM
  #5  
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Re: Questions about stock optispark - rotor breaking?

Originally Posted by atljar
Ive never seen it happen on a slower/stock car.

Fast cars which rev hard into the upper 6ks will break the rivets out of the stock rotor imploding it internally. Makes quite a mess.
Like redemn93 said.. that was the case with mine

6200 rpm's in the burnout box in 2nd gear.. bewm goes the rotor.

The following week I bend #8 pushrod.. talk about a bad two track runs.
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