4.8 LS Breaking up under boost only!
#11
99.9% sure they were TR7XI #3690 truck didn't make that much power cause TVS1900 turned way up on a stock engine is not that efficient but it never had spark issues on 93oct. When the belt didn't slip it would see 18psi on a cool day.
I also had no issues with TR6s at that boost level and according to my amazon history, I've purchased half a dozen TR6s and only 2 sets of TR7s so I vote to go back to the 6s and see if it fixes the issue.
I also had no issues with TR6s at that boost level and according to my amazon history, I've purchased half a dozen TR6s and only 2 sets of TR7s so I vote to go back to the 6s and see if it fixes the issue.
#15
There is a point at which a conservative approach to the toon goes from safe to inoperable. That extremely low boost, relatively rich mix and super low spark is a recipe for tooner induced misfire. If you cripple it that much, there's a good chance you're going to feel some dead misses. I see this all the time on cam swapped cars at high load/low rpm. The combustion is just garbage in that area with stock settings because the spark is so low - it literally makes itself misfire. I'm betting you are seeing similar effects, and no thanks to the decapped injectors either. You need to do something to get the combustion moving faster. Leaner, more spark, more boost (not all at once) and probably some better injectors. Baby steps though.
#16
There is a point at which a conservative approach to the toon goes from safe to inoperable. That extremely low boost, relatively rich mix and super low spark is a recipe for tooner induced misfire. If you cripple it that much, there's a good chance you're going to feel some dead misses. I see this all the time on cam swapped cars at high load/low rpm. The combustion is just garbage in that area with stock settings because the spark is so low - it literally makes itself misfire. I'm betting you are seeing similar effects, and no thanks to the decapped injectors either. You need to do something to get the combustion moving faster. Leaner, more spark, more boost (not all at once) and probably some better injectors. Baby steps though.
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