Please help w/ base tune. Zero Gravity PCS controller

Click on the "SUBSCRIBE" tab to sign up. I will not respond to technical questions unless you are a paid subscriber. Calibration and Config files will not open directly from the site, they must be downloaded to your computer in order to open.

NEW!!!

I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.

6 posts / 0 new

Last post

Sat, 02/14/2026 - 15:56

#1

NITEMER

Please help w/ base tune. Zero Gravity PCS controller

Hello new here. I have zero experience with this trans or controller.

I have a 1987 C30 dually that I swapped in a LQ4 being controlled by a terminator Xmax and I installed a 6l90 being controlled by ZeroGravitys PCS TCM2650. They sent me a base cal in a CFG format. The instructions say it should be a CFG file but when I try to load it needs a BIN file. I emailed them but they really take too long to answer.

Has anyone used zero gravity controller? Anyone have a basetune I can use? I also have HPtuners but again I have no experirnce so I dont know if I can use a HPtuners base cal with the zero gravity controller. Any help will be grately appreciated.

Subscribe today to see the replies on this topic.

You are here

Please help w/ base tune. Zero Gravity PCS controller

Click on the "SUBSCRIBE" tab to sign up. I will not respond to technical questions unless you are a paid subscriber. Calibration and Config files will not open directly from the site, they must be downloaded to your computer in order to open.

NEW!!!

I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.