OptiSpark Vacuum Kit???
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
OptiSpark Vacuum Kit???
I know about the Opti and its shortcomings, so I purchased an "OptiSpark Vacuum Kit" from zipcorvette.com It came with no directions, so my question is , :How the heck to do I install it?(I have a '92, don't know if Opti is original, recall replacement,etc.) 
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
wow. that's the GM kit.
IT's rather easy, really...
You need to get the opti off the car, then one hose is attached to a fitting that is glued to the opti cap, then the other end is fitted to the bottom drain/vent holes.
Finally, one end, the blue bit, goes to the intake tube, and the other, a space on the intake manifold.
If I remember rightly, the air goes from the intake tube, into the opti, out of the vent, into the manifold.
IT's rather easy, really...
You need to get the opti off the car, then one hose is attached to a fitting that is glued to the opti cap, then the other end is fitted to the bottom drain/vent holes.
Finally, one end, the blue bit, goes to the intake tube, and the other, a space on the intake manifold.
If I remember rightly, the air goes from the intake tube, into the opti, out of the vent, into the manifold.
Le Mans Master
Joined: Dec 2004
Posts: 5,789
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From: Myrtle Beach SC
St. Jude Donor '05-'06
Look at my pics I have one done in there.Corvette Fever has the right up on it.You can either drill a hole in the gen I cap and glue a fitting (I do not recommend it)or get a 95 gen II cap like I did.
Here is the small version
Here is the small version
Last edited by Redeasysport; Aug 30, 2005 at 12:42 AM.
Drifting
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From: Olathe, KS USA
Team Owner
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Originally Posted by C4Crazy787
Le Mans Master
Joined: Dec 2004
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From: Myrtle Beach SC
St. Jude Donor '05-'06
Originally Posted by PLRX787
I tried this on my first VETTE (92) Those T connectors did not fit. I tried all, I even hit them with a hammer and nothing helped. They were rubbing the crank/balancer. I ended up cutting them off. By the way that Optic I replaced that day had 195K miles..factory and I do not know how but it had NO RUST. Yes a 92 Optic without vent
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by PLRX787
I tried this on my first VETTE (92) Those T connectors did not fit. I tried all, I even hit them with a hammer and nothing helped. They were rubbing the crank/balancer. I ended up cutting them off. By the way that Optic I replaced that day had 195K miles..factory and I do not know how but it had NO RUST. Yes a 92 Optic without vent
