MSD Optispark
12-17-2009, 02:50 PM
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MSD Optispark I just bought a MSD opti for my 93 camaro and it came with vacuum lines to plug into the intake manifold and the elbow, but I cannot find where. Can someone help me
12-17-2009, 03:09 PM
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The MSD opti is vented. You stocker is not. You have two choices. Either cap the vent hole on the opti, or run a rubber hose to your intake elbow... Id choose option 1.
12-17-2009, 03:53 PM
#3
Just drill a small hole in your elbow and run the other cap vent with the "T" and check valve provided into a vacuum port on your manifold. Viola - instant vented opti.
12-17-2009, 03:57 PM
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Don't cap the hole! The defeats one of the biggest benefits of an MSD cap on a 92-94, the cheap conversion to vented.
Just drill a small hole in your elbow and run the other cap vent with the "T" and check valve provided into a vacuum port on your manifold. Viola - instant vented opti.
Just drill a small hole in your elbow and run the other cap vent with the "T" and check valve provided into a vacuum port on your manifold. Viola - instant vented opti.
12-17-2009, 09:10 PM
#6
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I thought the things came with complete instructions on how to run the vent hoses. They are on MSDs website.
http://www.msdignition.com/instructi...pdf?terms=8381
http://www.msdignition.com/instructi...pdf?terms=8381
12-18-2009, 06:40 AM
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Don't cap the hole! The defeats one of the biggest benefits of an MSD cap on a 92-94, the cheap conversion to vented.
Just drill a small hole in your elbow and run the other cap vent with the "T" and check valve provided into a vacuum port on your manifold. Viola - instant vented opti.
Just drill a small hole in your elbow and run the other cap vent with the "T" and check valve provided into a vacuum port on your manifold. Viola - instant vented opti.
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12-18-2009, 06:45 AM
#8
If the guy were capable of searching the web for information he would have realized the MSD opti is a bad thing, much more expensive and less reliable than stock.
The cap and rotor kit is nice and would have allowed the conversion to vented that the one rocket scientist here is saying not to do.
The cap and rotor kit is nice and would have allowed the conversion to vented that the one rocket scientist here is saying not to do.
I love my MSD opti 
12-18-2009, 07:53 PM
#14
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2. the MSD opti has only been around since what? 2006? is that even enough time for it to get the same 100k mile treatment as the GM ones?
12-18-2009, 09:03 PM
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It is important to install the vents because they remove several things from the distributor, including seeping oil from the timing chain cover, acidic gases that result in premature failure, smoke that can obscure the laser, and any moisture that may accumulate. Make sure you check the optispark vent hoses for leaks on a regular basis because if they crack your MSD will suck up water in a rain storm and the car will stall out.
Some guys don't like the vented optis. My first unvented opti lasted 90,000 miles, no leaks. I have found in most cases optis fail because of bad installation, and leaky hoses.
