Transgo Shift Firmness...
#11
TECH Resident
iTrader: (3)
Mine are a .086 but I wish I had .096 instead. The shifts are firm and not bad at all during normal driving but I wish I had the bigger size drilled for the hard launches. It feels like I could use just a little more pressure on those. If only I had remembered to tell him that. I also went with the firmest springs.
#13
If I go firm on 2-3 and 3-4 then .086 on the 1-2 shift then everything should look good I presume? This will be a street truck so I do not necessarily want to chirp every time I take off WOT or not. I wonder how the shift from 1-2 will feel in relation to the TC or will it even matter?
#16
Mod with training wheels
iTrader: (16)
In a nutshell, the accumulator controls apply piston speed. With a softer spring in the accumulators, they will fill up with transmission fluid while compressing the spring. The piston being applied is in parallel with this accumulator, so since the accumulator has a certain volume to fill, it effectively slows the piston down so it doesn't just slam the clutches. Firmer springs make the accumulators basically have more resistance to filling, so the piston moves faster and applies the gear sooner and sometimes harsher. I use the firm accumulator springs and the .096 holes in the transmissions that i build.
#17
In a nutshell, the accumulator controls apply piston speed. With a softer spring in the accumulators, they will fill up with transmission fluid while compressing the spring. The piston being applied is in parallel with this accumulator, so since the accumulator has a certain volume to fill, it effectively slows the piston down so it doesn't just slam the clutches. Firmer springs make the accumulators basically have more resistance to filling, so the piston moves faster and applies the gear sooner and sometimes harsher. I use the firm accumulator springs and the .096 holes in the transmissions that i build.
If anyone else has anything to add like using the average shift holes or different combination feel free to talk about your experience. Just like seeing an array of thoughts on how everyone's ride performs. Thanks!
#19
TECH Resident
iTrader: (3)
Drilling out the holes adds flow volume. Adjusting pressure in the tune adjusts the pressure of the flow. They both add energy to the apply pistons but in different ways. It's like a big block engine at low rpm (volume) vs a smallblock at high rpm (pressure). If you spin a big block faster you get the best of both worlds. The right combination of both makes for the perfect shift but I think flow volume is more gentle on parts and is also more effective.
The accumulator is a hydraulic shock absorber. It also provides stored hydraulic energy. A stronger spring will make for faster shifts but will reduce its shock absorbing qualities. If you have good parts in your transmission then firming this up will improve your shifts.
The accumulator is a hydraulic shock absorber. It also provides stored hydraulic energy. A stronger spring will make for faster shifts but will reduce its shock absorbing qualities. If you have good parts in your transmission then firming this up will improve your shifts.