ignition upgrade
Thread Starter
Pro
Joined: Feb 2003
Posts: 599
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From: anderson sc
ignition upgrade
i believe i need to work on my ignition, so short of replacing my opti, which has 20K on it, what else can i do? hotter coil(does my car have a coil?) whats the best plug wire? whats the best plug for my basically stock LT1 with open exhaust? please help with info. this friggin miss is pissin me off.
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
First of all, there are so many opti threads on this forum that one doesn't need to ask any questions about LT1 ignition, just look back a few pages. However, A hotter coil may only hurt your situation as the opti will cross track if it is getting dirty or wet. One upgrade gets the high voltage out of the opti. Wires: It seems Taylor and MSD are the leading brands, however, MSDs are 8.5mm and fitting them in the factory looms is just about impossible. I made my own looms which work better than the factory ones. Plugs: I've been using NGK TR55IX Iridiums with no problems. Some guys swear by the AC Delco Rapid fires. Before you dive into this project check to make sure none of your wires are cooking on the exhaust.
Team Owner
Joined: Sep 2001
Posts: 62,139
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
If the opti is the culprit, no ignition mod will save you. It may exacerbate the problem if you do something radical like MSD/Crane ignition boxes.
I would simply replace the plugs, wires, and TEST the coil for its proper output. I use the MSD wires and Rapidfires, but the NGK's are more popular for the LT engines.
I would simply replace the plugs, wires, and TEST the coil for its proper output. I use the MSD wires and Rapidfires, but the NGK's are more popular for the LT engines.
