What is the Opti Spark distributor on a corvette?
What is the Opti Spark distributor on a corvette?
This new Opti-Spark distributor was supposed to be the greatest thing since GM did away with ignition points. Instead there was an internal mistake and the Opti-Spark caused Corvette owners a tremendous amount of aggravation. One of the goals was to control spark scatter during transient maneuvers, such as acceleration.
When did the 4th generation Corvette come out?
By the time the C7 Corvette arrived in 2014, the fourth-generation Corvette was considered by many as an outdated “blip” in the history of the brand. Original GM add for the 1985 Chevrolet Corvette.
What kind of engine was in the 1984 Corvette?
In fact, the same L98 that was used in the Corvette was also the engine selected by GM to power their IROC Camaros and the Pontiac GTA Trans Am. The L83 Engine was used in the 1984 Corvette. The L83 engine was introduced in 1982 for the final year of the C3 Corvette.
How old is the 4th generation Corvette Stingray?
Today, the fourth-generation Corvette may look a bit dated compared to the seventh-generation Stingray or the eighth-generation mid-engine C8, but part of its appeal is that it calls back to a pivotal decade which has, thanks to shows like “Stranger Things,” found an entirely new audience who just can’t get enough of the 1980’s.
What’s the power loss on a 94 corvette?
This time, after about 5-10 mins, it starts popping and backfiring again, and I swear I’m only running on four cylinders it feels like. So I get home ASAP, test the MSD coil, it’s at 9500 ohms, and it idles just fine.
What happens when you start a C4 Corvette?
When starting an L-98 Corvette engine, a sequence of events take place that precedes the engine running. Knowing these sequences will help you troubleshoot no start issues with your C4 Corvette. C4 Corvette Start Sequence begins when you first turn the key to the “on” position, the fuel pump will run for 2 seconds pressurizing the fuel rails.
What kind of rotor does a 94 Corvette have?
So I just got this sweet 94 Corvette, and am LOVING it. My first one. When I first got it, it had some misfire at higher RPM’s so I installed a new MSD cap, rotor, and coil, as well as Taylor 8.2 wires and TR55’s gapped at 050.
What causes a 94 Corvette LT1 to backfire?
The only reason it will backfire is because of the throttle position, as long as I held it with a slight steady load, it never popped or backfired, it just ran like crap, and sounded like it was missing on at least 2, possibly 3 cylinders. I wouldn’t say it’s rich either, seems lean if anything, no fuel or flooding smell.
This new Opti-Spark distributor was supposed to be the greatest thing since GM did away with ignition points. Instead there was an internal mistake and the Opti-Spark caused Corvette owners a tremendous amount of aggravation. One of the goals was to control spark scatter during transient maneuvers, such as acceleration.
How does the Opti Spark system reduce rotor wear?
A key element in this Opti-Spark system was the increased overall diameter of the distributor which allowed for greater separation between the secondary terminals within the cap. This reduced cap and rotor wear by reducing the ozone formed when the spark is jumping large rotor-to-cap gaps.
How long does it take to install Opti Spark on LT1?
Spark plug wires on the LT1 are a major effort. It usually takes around four hours. I would install the new Opti-Spark and when you’re sure the engine runs properly get started on the spark plugs and the spark plug wires.
What causes a spark error in an Opti Spark distributor?
Spark errors also occur during transient movements such as acceleration, deceleration and transmission shifts. A key element in this Opti-Spark system was the increased overall diameter of the distributor which allowed for greater separation between the secondary terminals within the cap.
How does the LT1 Opti Spark distributor reduce rotor wear?
This reduced cap and rotor wear by reducing the ozone formed when the spark is jumping large rotor-to-cap gaps. For all of its innovations, one major problem occurred in the transition to actual production.
Why was the hole in the LT1 spark distributor changed?
After the design was completed the unit was passed on to what is called validation engineering. This group changed the size of the hole without communicating this change to anyone else. The validation team felt the hole was simply too large and would allow water to enter into the distributor.
What’s the best book for restoring a corvette?
He has also written two other best selling Corvette One deals with the 1968 to 1982 Corvettes, How to Restore and Modify Your Corvette 1968-82 , while another deals with the Sting Rays from 1963 to 1967, Corvette Restoration Guide 1963-1967 All of these books are available from Corvette Central.
How to replace the Optispark on a corvette?
Complete Vented Optispark Replacement Guide – CorvetteForum http://www.the-reeds.com/optispark_conversion.htm The Optispark is the distributor that was installed on all late model LT1’s and LT4’s. This distributor http://www.the-reeds.com/optispark_conversion.htm The Optispark is the distributor that was installed on all late model LT1’s and LT4’s.
This reduced cap and rotor wear by reducing the ozone formed when the spark is jumping large rotor-to-cap gaps. For all of its innovations, one major problem occurred in the transition to actual production.
Can a 1995 Optispark be upgraded to a 1994 LT1?
This is the BIGGEST problem with the design. forewarned. You CANNOT bolt a 1995+ Optispark up to a 1992-1994 LT1. The CAM is different. You could change the CAM, timing cover, CAM gear, etc but this gets expensive, and is very labor intensive.
