4l60e transmisson shifting to early
this is all the specs. THESE UNITS WILL HANDLE UP 750HP AND OVER 700 POUNDS OF TORUQE ..TURBO OR SUPER CHARGED ENGINES NEED ANTI BALLOON CONVERTORS
RAYBESTOS Z PACK CLUTCHES AND NEW KOLENE STEELS
WIDE ALTO ENERGY BAND
BEAST HARDENED SHELL
SUPER SERVO SET
UPDATED SPRAGS ALL THROUGHOUT
HEAT TREATED SHAFTS
500 BOOST VALVE KIT
13 VANE PUMP KIT WITH HD ROTOR
NEW SEALS, GASKETS, O-RINGS, BUSHINGS AND WASHERS
NEW FILTER
NEW HD CONVERTOR (2000 STALL IF NEEDED)
B&M MATCHED WITH TRANSGO SHIFT KIT HD2
AMERICAN MADE 5 GEAR PLANET SETS
THIS TRANNY WILL SHIFT NICE AND XTRA FIRM WITH GREAT POWER AND PERFORMANCE FOR YEARS
ok my problem is no matter what i do in the tuning like up shifting speed, rpm etc, is not taking command. am using hp tuner. any help will be appreciated. thanks

Are you saying that tune changes have no effect on the shift speeds?
If yes, I would say that is virtually impossible.
I assume you have a properly licensed version, enough credits to write a tune and know how to write the tune.
Now, assuming all that is true, try reading the tune after performing the write to see if the write really worked.
yes that is exactly what I say mrvedit, no effect on the shift speeds.
everything else work, maybe am doing something wrong?
this is the history of my car, maybe this help.
my car is a 1998 trans, am and i did all the bolt on, 1.75 headers,k&n filter,85mm bbk port & polish intake,full 3" exhaust system,4.11 gear swap and 305/35/18 mickey thompson drag radials. them i sent the computer to frost for a mail tune and he tune and was running perfect until i broke my transmission, and them i buy the new trany and the hp tuner, and start tuning the trany my self. and I forgot to mention i have a new 3500 stall converter. like i say maybe am doing something wrong. if you want i can post my tuning file for you to look at it. thanks
But under gear/tire wizard it says your tires are 6.15 inches tall. That will make it stack shifts and with a converter you might not feel it. It will just feel sluggish.
That number should be 26.3 or close to it.
Some other things I just noticed that might not help: upshift and down shift speeds are too close together.
Might want to disable P0300 just because.
System too rich bank 1 and 2 is weird. seems like that's covering up a problem.
I would raise the tcc apply speed, but you'll figure that out because it'll be very annoying.
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ohhh and what deference on speed , up shift and down shift value should i put.
i will raise the speed on tcc apply speed to see if tha help.
i will do it tomorrow morning cos i don't work tomorrow.
about bank 1 back 2 i have no idea? i now what is too rich bu i don't know how to adjusted. thanks for all your help jays ssz28.
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