Trannyman

Prior to me rebuilding my trans, I had the wbody shift kit with a DHP 1.5 file. When I'm driving around 38 mph, I could hit the performance shift button and get the downshift from 3-1 and get that nice firm quick shift from 1-2. For some reason, if I try to do the same thing with the transgo shift kit at 38 mph it feels as though the trans downshifts fine and the car lags for a sec and then it takes off. Its as if the RPM's jump to 5500 rpm or say and the car doesn't accelerate at all for a second and then it pulls. It reminds me of a turbo setup where it takes a second for the turbo to spool up and then it starts to pull. It might also be the car is hanging onto 1st to long and then shifts into second.

Any ideas what it might be? If I take off from a stand still, the car shifts great and doesn't slip at all. Prior to me modding my car, I never experienced the DHP 1.5 without the wbody shift kit. I put all my power mods on the same day so it was quite the improvement over stock. So what I might be describing is normal, but I really miss that firm shift.

Any recommendations on how to firm up the shifts. I would prefer to still utilize the transgo kit as it looks like a higher quality kit than wbody stores kit or zzp kit. I'm assuming the accumulator 1-2 spacer should be changed to be more in line with wbodystores size.

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1997 Black GTP 72k (4dr), 3.5 Pulley, Wbody Downpipe, Wbody Shift kit (street), DHP 1.0, NGK TR55ix Spark Plugs, GMP Handling kit, KYB AGX Struts, AT Italia Inox 235x50x18 Bfgoodrich KDWS, GMPP Springs, Corvette C5 Calipers, Blazertech 3200, DHP Powertuner (97-03), Built Trans, Torsen Diff