JD1964
08-10-2021, 05:34 PM
I'm getting close to finishing enough on the LT1 into 79 Malibu wagon such that test driving is in the near future. I had initially sent the PCM out for tuning and I've changed a few settings in the engine controls but I have not changed anything with the transmission parameters.
The tuner changed transmission settings for more aggressive shifting but I'm not sure if his settings are a good starting point for me. I feel this way because the transmission had been rebuilt not long before I acquired the donor car. The previous owner told me the guy who rebuilt the trans had done some modifications to the known weak points of the 4L60E. Unfortunately I dont know exactly what was done to it. Considering the trans may have mods that already increase the line pressure, that's why I'm wondering if the settings currently in this tune are a good place to start.
I attached the Tunerpro bin. I'm hoping a forum member here with more knowledge than me can look at this tune and specifically the transmission settings and let me know if I should change anything to get started. I think I'd rather play it safe at first then adjust to more aggressive later if warranted and desired.
Thanks
The tuner changed transmission settings for more aggressive shifting but I'm not sure if his settings are a good starting point for me. I feel this way because the transmission had been rebuilt not long before I acquired the donor car. The previous owner told me the guy who rebuilt the trans had done some modifications to the known weak points of the 4L60E. Unfortunately I dont know exactly what was done to it. Considering the trans may have mods that already increase the line pressure, that's why I'm wondering if the settings currently in this tune are a good place to start.
I attached the Tunerpro bin. I'm hoping a forum member here with more knowledge than me can look at this tune and specifically the transmission settings and let me know if I should change anything to get started. I think I'd rather play it safe at first then adjust to more aggressive later if warranted and desired.
Thanks