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Thread: 4T45E shift point adjustments for ~50% car weight?

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    4T45E shift point adjustments for ~50% car weight?

    Hi - I have kit car with a 2.2/4T45E out of a cobalt. The kit car total weight is about 1200 lbs. Stock Transmission tune. When driving it aggressively works to upshift before i hit the high RPMS im looking for. Just looking for some general guidance on which tables to focus on to hold shifts to higher RPMs/MPH (versus lower RPM shifts at part throttle).

    Any help would be appreciated, Thanks!
    Last edited by 99whitews6; 04-16-2019 at 08:32 AM.