Where is the Opti located on a LT1 engine?
The GM Optispark is an optically-triggered ignition distributor used on the LT1, LT4 and L99 engines. The “opti” has two parts, a low-voltage optical section and a high-voltage cap and rotor section. Where is it? The opti is mounted on the front of the LT1, above the crank snout and behind the water pump.
Can a LTCC be used to replace an opti?
(3) the LTCC is an LS1 coil-pack conversion adapter to which you supply your own coils. It uses the signal from the optical section of your opti to work, so if you suffer optical section failure you’ll still have to replace the opti. But, by removing the high voltage section from operation, you can significantly prolong opti life.
Is there a way to prolong the LT1 Opti life?
But, by removing the high voltage section from operation, you can significantly prolong opti life. (4) the Delteq opti eliminator converts the LT1 to a Northstar coilpack setup using either the Opti optical section or a stage 2 which eliminates the Opti all together.
Are there any problems with the Chevy LT1?
The LT1 powered police cars and taxis, too, and really only had one problem. While it worked perfectly in a lab or on bright, sunny days at GM’s proving grounds, low mounting on the front of the engine meant the Opti suffered from exposure to road water, grit, and salt far more than the typical distributor.
Are there any problems with the Optispark on a 1995 corvette?
A couple of years back when I purchased my 1995 LT1 Corvette I ran into an expensive issue with the optispark, though it sounds (and sounded at the time) like nothing new to these pages – the car started crapping out on me randomly and a ridiculous sum of money and a new ignition system later it was all better.
Can a MSD box cause an opti to fail?
One mistake a lot of guys make is they add an MSD box onto the ignition. The multiple spark errodes the contacts inside the rotor very rapidly. MSDs have been responsible for lots of opti failures, particularly on boosted cars.
How often should I replace my Optispark ignition box?
The upside is they are not hard to replace, a little messy with the w/p removal, and they are only about $200 a pop brand new from GM. If maintained properly you shouldn’t have to replace it too often. One mistake a lot of guys make is they add an MSD box onto the ignition.
Why is my LT1 Optispark spark not working?
The other half is the high voltage section where the rotor conducts the spark just like any other distributor. This half can also be affected by moisture and also over time the high voltage creates ozone inside the cap that corrodes the contacts.