Hi there, i'm new to your site to hopefully sort out my trans problems.
I am in Australia and have a HSV maloo ute LS3 mild cam headers 3'' exhaust etc, dyno tuned car put out 430rwhp.
Stock trans tune and everything was fine.
Then we bolted on a new magnuson 2300 heartbeat supercharger, dyno tuned (efi live) car made 675rwhp wow!
Power is fantastic and car drives extremely well but this is when the trans problems started.
We picked up a huge flare (almost like a false neutral) on the 2-3 shift in tutd mode only, other modes (sport and drive) are fine although
shifts feel soft, my tuning buddy admits to know nothing about the trans so we need help. We have tried playing with pressures and
torque management but to no avail,the flare continues.
We dropped the trans pan and replaced it with a deeper one, new filter and added more fluid, old fluid looked great with only a tiny bit af sediment in the pan. Re flashed back to stock tune and did a fast learn. Still the flare continues.
Today we tried your EFI live tip, Delivered tprque mod, All shifts felt imediately felt much sharper in sport and drive but had no effect at all in
tutd mode (soft shifts and flare 2-3) continue.
What do you suggest we try next? Any help you can give us would be greatly appreciated.
Cheers Justin