converter without tune?
#15
Yea it be alright i ran mine for at least a month and it ran just fine and didnt notice any change in idle at all but i noticed one change, there was always smoke coming from my rears tires!
#18
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From: Ellington CT
When I installed my 278 I ran into the low idle issue but that was a quick fix with a tune, but also had a 300 rpm surge under load with lockup, this was due to the dumbass tuning from GM that softens converter lock up feel by constantly increasing and decreasing the TCC lockup PWM by about 15-20% causing the surge, again a quick fix with the tune but mine was just annoying and probably would have burnt up the TCC. So just watch out and pay close attention on your first test drive. But other than that it is sooo sweet!!
#19
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From: Fort Worth, Texas
When I installed my 278 I ran into the low idle issue but that was a quick fix with a tune, but also had a 300 rpm surge under load with lockup, this was due to the dumbass tuning from GM that softens converter lock up feel by constantly increasing and decreasing the TCC lockup PWM by about 15-20% causing the surge, again a quick fix with the tune but mine was just annoying and probably would have burnt up the TCC. So just watch out and pay close attention on your first test drive. But other than that it is sooo sweet!!