whats best opti?
06-15-2009, 09:00 AM
#2
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Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,709
A genuine GM opti is recommended for most people. Try thepartsladi on Ebay for a decent price. Many have been satisfied with the product from there. If you wanted to add a vent system with a minimum amount of fuss, the MSD opti is vented and you don't have to convert any of the the things you normally would have to when swapping to a later model vented opti. More expensive, though.
06-15-2009, 11:19 AM
#3
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Join Date: Jul 2004
Location: MI
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I've gone thru 4 or 5 opti units (97ss). The gm parts opti always works. I have tried the del-tech opti, but very expensive and failed due to corosion, did not fit the front cover, and, required machine work. I am now running the Summit opti and it is working good. I do mod the rotor with 1/8 alum rivets since the plastic usually melts and destruction is total. HTH. B.
06-15-2009, 11:47 AM
#4
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Location: Windsor, ON Canada
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GM opti and locktite the screws inside. Ive had mine on my car for 2 seasons (car ran mid-high 11s all day long) never had issues. Now is boosted and so far so good.
Also was ran on a MSD and mallory this year.
My buddy bought a MSD and said it was a POS, nice design but it blew up fast.
Jay
Also was ran on a MSD and mallory this year.
My buddy bought a MSD and said it was a POS, nice design but it blew up fast.
Jay
06-15-2009, 06:29 PM
#5
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Join Date: May 2009
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what site can i buy them at or can i buy one at the local auto parts store. and auto zone has a msd for a good price is this a good opti
http://www.autozone.com/autozone/cat...uestid=1541609
http://www.autozone.com/autozone/cat...uestid=1541609
06-15-2009, 10:58 PM
#6
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Location: Eagle River, Alaska
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what site can i buy them at or can i buy one at the local auto parts store. and auto zone has a msd for a good price is this a good opti
http://www.autozone.com/autozone/cat...uestid=1541609
http://www.autozone.com/autozone/cat...uestid=1541609
That is just the cap and rotor. If your optical unit has failed, you will need to replace the whole thing, and the MSD one is $550
06-15-2009, 11:07 PM
#7
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06-15-2009, 11:18 PM
#8
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Location: Eagle River, Alaska
Posts: 360
www.summitracing.com if you want the MSD one, or ebay for the GM one, seller name is thepartsladi
06-15-2009, 11:26 PM
#9
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Location: Hell was full so they sent me to NJ
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I've gone thru 4 or 5 opti units (97ss). The gm parts opti always works. I have tried the del-tech opti, but very expensive and failed due to corosion, did not fit the front cover, and, required machine work. I am now running the Summit opti and it is working good. I do mod the rotor with 1/8 alum rivets since the plastic usually melts and destruction is total. HTH. B.
06-17-2009, 09:19 AM
#10
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Join Date: Jul 2004
Location: MI
Posts: 1,174
Sorry... Yes Dynotech. Always get confused on name. But, the "cnc" machined alum housing did not fit the front timing cover of a 97 LT1. I did machine additional material from the housing for ot to fully engage into the drive pin and fit the mounting boss flat with no gaps. I always use care and multiple checks when installing opti. B.
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