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opti help please...

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Old Apr 30, 2008 | 09:03 AM
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j.a. layfield's Avatar
j.a. layfield
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Default opti help please...
Iam working on my 95, replacing the opti,can someone tell me if i need to replace the whole dist. or can i just replace the guts. whats the best thing to do, if i dont need to replace the whole dist., is that whats making it run bad? dont want to spend the money if i dont need to i dont think its never been replaced. 106,000 miles. thanks for any help j.a.
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Old Apr 30, 2008 | 11:10 AM
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Default Opti
Replace the whole thing.
You can't just replace the cap & Rotor.
The units go bad at 60,000 on the average.
Spend the extra money dude
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Old Apr 30, 2008 | 11:53 AM
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Originally Posted by j.a. layfield
Iam working on my 95, replacing the opti,can someone tell me if i need to replace the whole dist. or can i just replace the guts. whats the best thing to do, if i dont need to replace the whole dist., is that whats making it run bad? dont want to spend the money if i dont need to i dont think its never been replaced. 106,000 miles. thanks for any help j.a.
I'm at 105k on my original 95 opti. I am going to swap mine with an MSD. I'm waiting to to do the cam at the same time. Are you swapping it just because or did you suspect it to be on the way out? I'm thinking of having my car dyno'd soon just to see where it's at. The idle is not too bad. Every now and then I barely hear a strange noise at idle but that could easily be something else with some of the mods I've done.

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Old Apr 30, 2008 | 02:09 PM
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Actually you can just buy a cap and rotor and replace those. That's what the previous owner did on my 93.
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Old Apr 30, 2008 | 02:29 PM
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With over 100k, just replace the whole unit.
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Old Apr 30, 2008 | 11:50 PM
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Old May 1, 2008 | 09:58 AM
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Default Cap & Rotor
I did just the cap & Rotor at 68,000 miles & i monthe later the unit went bad
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Old May 1, 2008 | 10:40 AM
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Originally Posted by j.a. layfield
Iam working on my 95, replacing the opti,can someone tell me if i need to replace the whole dist. or can i just replace the guts. whats the best thing to do, if i dont need to replace the whole dist., is that whats making it run bad? dont want to spend the money if i dont need to i dont think its never been replaced. 106,000 miles. thanks for any help j.a.
You can just replace the guts, but I wouldn't. It's such a pain in the *** to get to the part, you're better off replacing it.

I highly recommend the MSD Opti. Mine works like a champ, and it got me about .05 - .10 in the 1/4 mile improvement.
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Old May 2, 2008 | 04:33 AM
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thanks for all the advise, i ordered a gm replacement to go back in, that msd is a little more than i can afford right now. got mine from mid america for 229.00 will this one be ok ? damn i hope so...
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Old May 2, 2008 | 06:57 AM
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Originally Posted by j.a. layfield
thanks for all the advise, i ordered a gm replacement to go back in, that msd is a little more than i can afford right now. got mine from mid america for 229.00 will this one be ok ? damn i hope so...
The GM replacement is more than ok. I think the MSD's are over rated. I had major problems with mine last year and MSD tech was absolutly NO help.
You did good!
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Old May 2, 2008 | 07:32 AM
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Originally Posted by j.a. layfield
thanks for all the advise, i ordered a gm replacement to go back in, that msd is a little more than i can afford right now. got mine from mid america for 229.00 will this one be ok ? damn i hope so...
Jeff, bring some coffee over before we get back started on it this morning. I had one to many at the Vette meeting last night, you missed a good one
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Old May 2, 2008 | 11:05 PM
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The cap and rotor cost almost as much as the whole thing and if you have to take everything off the front of the engine you might as well replace it all with that many miles.
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