opti question
01-27-2007, 02:25 AM
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opti question ive been looking around for an opti since mine is about to kick the bucket im pretty sure, now im looking on ebay and they say they are only for a 95-97, why arent they fitting a 94? i know they are the same engine just obd1 instead of obd2, would it fit?
01-27-2007, 02:41 AM
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92 -94 opti's are not vented. I'm also sure the length on the cam pin is different also. 95 and ups are vented but I hear the MSD Opti for 92-94 are vented.
01-29-2007, 12:54 PM
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Yeah, you need the 92-94 assuming the stock is in place now. The opti shaft is different where it connects to the cam between the 92-94 and 95-97. The older style is non-vented unless you get a complete upgrade version (MSD, Dynaspark) or you can add a MSD cap/rotor to a stock opti to gain the benefits of venting.
01-29-2007, 09:36 PM
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You need the non vented as the timing chain covers are different on the 95-97s.The non vented 92-94 is driven by a small splined shaft and has a small opening on the t-chain cover.The vented 95-97 have a much bigger opening and is driven directly off the cam with a long dowel pin.