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Type: Posts; User: douginnow

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    Found the GM 4-6-8 speed tranny book to be very...

    Found the GM 4-6-8 speed tranny book to be very helpful for a first time tuner although its a bit pricey @ $200...it does lack in depth details as some sections don't mention any explanation of what...
  2. From 8th all the way down to 2nd gear? ...wow! I...

    From 8th all the way down to 2nd gear? ...wow! I don't let mine shift into 8th until 50mph at 0% TPS so it can't down shift that far...my 2-3 upshift maxes out at 27mph (& max speeds are similar or...
  3. The book advised me to change "all" my up/down...

    The book advised me to change "all" my up/down shift times to 0.35s...however some of my OEM shift times especially 4-5, 5-6, 6-7, 7-8 were already lower than that (as low as 0.22s) so I took a...
  4. My GM Transmission book that I bought from the...

    My GM Transmission book that I bought from the Tunning school says don't mess with any multiple upshifts or downshifts so I didn't...personally I checked/modified each value by hand as opposed to...
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