I do not think that John Spina from Casper's would mind if I passed info from a discussion we had about about T-R electronics, and specifically what applies to the ignition module.
The components that were use in the original modules are no longer available after 30 years, so substitute items must be used. There in is the issue, no one, not even Delco, can produce an exact replica of the original part?
In the past few months I have tried many different "new" modules, and returned them all because of various issues.
The original modules are hit-and-miss with their performance and reliability based upon the many I have tried lately.
For a rather stock street cars, the old stock and some new ones may be OK, but when you up the boost and RPM, they start to give up.
In our performance built GN's with ~500 HP or more, a hot spark is necessary but not available even in the good original units we tested.
If you want performance and reliability, then it is time to step up to the TR6 which we have proven not only to be reliable, but noticeably improves performance which we have demonstrated on many local cars, and I still have 4 units on order.
My opinion is that if someone spends a few thousand $$$$$ on mods and engine upgrades, it is the smart thing for a few more dollars to bring the ignition system on the GN into the 21st. century!
