92LT1 Optispark question

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Sep 12, 2005 | 04:41 PM

WYTEOUT92

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Racer

Joined: May 2004

Posts: 263

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From: Oconomowoc WI

92LT1 Optispark question

What alternatives do I have for Optispark replacement on my essentially stock (intake, exhaust, 160 T-stat, chip) 92 LT1?
Thanks

Sep 12, 2005 | 06:24 PM

Redeasysport

Le Mans Master

Joined: Dec 2004

Posts: 5,789

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From: Myrtle Beach SC

St. Jude Donor '05-'06

Quote:

Originally Posted by 92LT-1BoughtItRight

What alternatives do I have for Optispark replacement on my essentially stock (intake, exhaust, 160 T-stat, chip) 92 LT1?
Thanks

The Dynaspark is the only "replacement" for the Opti. I have one and love it.You can eliminate the rotor in the opti and add the Delteq coil system but you still need the opti for triggering it.

Sep 12, 2005 | 06:46 PM

CharlieLT4

Instructor

Joined: Jan 2004

Posts: 171

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From: Fort Wayne IN

Check out the current issue of VETTE magazine LT1 to LT4 article. I had an opti problem and replaced it with a DynaSpark. You get what you pay for! My OEM opti had less then 2,000 miles on it and it couldn't provide spark past 5,200 RPM. The DynaSpark is the only choice it my book!

The "forum experts" will chime in and tell you it's over priced, etc. Talk to owners that actually run them on their Corvettes and you will notice a trend...they meet or exceed the owners expectations.

If you live close to Fort Wayne, IN or Columbus, Ohio I will offer to assist you with installing a DynaSpark.

Sep 12, 2005 | 07:40 PM

steve40th

Le Mans Master

Joined: Feb 1999

Posts: 9,949

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From: South Carolina

St. Jude Donor '03 & '05

If you cant afford an Dynaspark, which is a very good product, get an OEM and remember it has a 12 month 12000 mile warranty. Dynaspark has a similiar warranty.

Sep 12, 2005 | 11:21 PM

BlackC6LS3

Melting Slicks

Joined: Nov 2003

Posts: 2,679

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From: South Amboy NJ

i'll be ordering a dynaspark very shortly...i just hope the dynaspark guy replies to my pm soon so he can clear up a couple of issues.

Sep 13, 2005 | 12:12 AM

Alvin

Drifting

Joined: May 2003

Posts: 1,730

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From: Charlotte NC

St. Jude Donor '05

You can also swap it up to the 95 style vented.

Sep 13, 2005 | 11:12 AM

redragtop

Instructor

Joined: Sep 2000

Posts: 152

Likes: 0

From: Fayetteville GA

92LT1 Optispark question

Quote:

Originally Posted by 92LT-1BoughtItRight

What alternatives do I have for Optispark replacement on my essentially stock (intake, exhaust, 160 T-stat, chip) 92 LT1?
Thanks

I'll tell you what not to do, don't do as I did and buy one from Autozone. The price was attractive, also offered life time warranty. I only replaced it because I was nearly there replacing water pump and it was approaching its service life (75k). Since then, never developed more than 4200 rpm.

Given the difficulty and time required to replace it; go ahead and pony up the money up front. Trust me...

Last edited by redragtop; Sep 13, 2005 at 12:02 PM.

Sep 13, 2005 | 06:52 PM

Texas CE

Instructor

Joined: Dec 2001

Posts: 210

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From: Helotes TX

Quote:

Originally Posted by Redeasysport

The Dynaspark is the only "replacement" for the Opti. I have one and love it.You can eliminate the rotor in the opti and add the Delteq coil system but you still need the opti for triggering it.

Pretty much. I installed a Dynaspark because I wanted to eliminate the one weak spot in the LT-1. If you go with a Delteq it still relies on a properly functioning Opti for a signal on when to fire the plugs. When I looked at all the pros/cons and costs I went with the Dynaspark because it replaces the Opti with a near bullet proof unit. I have only read of one user who had 2 fail back-to-back on a modified engine and the source was traced to a reluctor ring (inside the engine timing cover)problem causing excessive vibration of the Dynaspark. You can check out all the benefits at the DTE website:

http://www.dynotech-eng.com/dynaspark.htm

It will cost about $250.00 more than a replacement Opti and Cap/rotor kit. Well worth it.

Also it's a prettier unit! (at least until its covered by the water pump)