C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Optispark; Petris or supposed new Delphi?

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Old Apr 3, 2014 | 02:09 PM
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Default Optispark; Petris or supposed new Delphi?

After searching and searching and not finding a NOS AC Delco optispark for my 93, i´m torn between a Petris optispark and the Delphi one that is posted on ebay and the seller says it is new.
I know the first one is vented and claimed to has the Mitsubishi optical sensor; also i read a lot on the internet about Mr. Petris (mostly good), but someone has experience with this distributor?
Does the Delphi distributor has the Mitsubishi optical sensor? The seller couldn´t answer that....
Someone using it?
On the other hand, i don´t trust in the remanufactured Ac Delco optisparks posted all over the internet.
As i live outside US, it´s not easy to return a part.
thanks in advance
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Old Apr 3, 2014 | 02:25 PM
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Here we go.
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Old Apr 3, 2014 | 04:42 PM
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Here are pics of a Petris disassembled









The grinding and debris were in there when I opened it. This has less than 5 minutes runtime on it. Never even got it out of park before pulling it off.

Last edited by bassackwards; Apr 3, 2014 at 04:44 PM.
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Old Apr 3, 2014 | 05:15 PM
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I put a chandlers unit on 2years ago, I run hard and it's doing great. Paid $137 for it
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Old Apr 3, 2014 | 07:33 PM
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You should recheck the wording from Petris. Last I checked it said "Mitsubishi quality sensor" or something to that effect. Essentially it's an over priced cheap part store opti. Of those two choices I would go with Delphi. The chandler opti sounds interesting. I have heard good things about it, though I have no experience with it.
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Old Apr 4, 2014 | 12:56 PM
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I just found a new ac delco (not a NOS).
Corvette America has it and they confirm that is a new delco distributor.
It´s probably the same part that delphi with other brand. maybe.....
I ´ll go for one of those two.
thanks
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