Transgo Shift Firmness...
#22
TECH Senior Member
iTrader: (59)
~600rwhp for now, would like to get 700rwhp in the future though. It's 100% street driven daily driver. I like firm shifts but nothing that will upset passengers or could cause damage to the trans. I don't think I'll be locking the converter at WOT.
Also can shift firmness be adjusted with the tow/haul button? If so, it would be nice to have a softer shift in normal mode, and then firmer shifts in tow/haul mode.
Also can shift firmness be adjusted with the tow/haul button? If so, it would be nice to have a softer shift in normal mode, and then firmer shifts in tow/haul mode.
#23
TECH Resident
iTrader: (3)
I'd drill them all to .096 for that kind of power and then reduce shift pressure in the tune as required. I found on my last two transmissions that drilling the holes bigger didn't make a huge difference anyways.
With HPTuners you can have two entirely different transmission setups in normal and tow/haul. You separately set up either of them for shift pressure, solenoid speed, TC lockup and MPH or RPM shift speed in any gear. It could shift like a butterfly in normal and like a bull in tow/haul.
I think this is the best part of tuning... getting the transmission dialed in.
With HPTuners you can have two entirely different transmission setups in normal and tow/haul. You separately set up either of them for shift pressure, solenoid speed, TC lockup and MPH or RPM shift speed in any gear. It could shift like a butterfly in normal and like a bull in tow/haul.
I think this is the best part of tuning... getting the transmission dialed in.
Last edited by swift700; 08-06-2013 at 04:01 PM.
#25
Other than the tune, I have heard that if I am running a smaller diameter/higher stall torque converter that it will help to soften the shifts up a bit (over a stock converter). So the question that is plaguing me is: What relation to the shift firmness does the Torque Converter play?
This may be broad and full of jargon, but I haven't seen a definitive answer concerning this that I can wrap my brain around. Thanks!
This may be broad and full of jargon, but I haven't seen a definitive answer concerning this that I can wrap my brain around. Thanks!
#27
Admin
iTrader: (22)
A higher stall / looser converter will soften the shift feel, in fact if you read the directions in the transgo kits for the 80E is specifically mentions this.
Read Step 6
https://www.performancetrucks.net/fo...d.php?t=507451
Read Step 6
https://www.performancetrucks.net/fo...d.php?t=507451
#28
On my setup the builders went with firmest everything. It is definitely a positive shift, even a little jarring if I happen to be shifting through gears while in lockup, but it's not a bad engagement. 1-2 will pop the tires loose at WOT and all the other shifts are very crisp but get eaten by the converter.
I'm running stock line pressures FYI. When I first got the trans back I was still running my very high 60E pressure settings and the trans was literally chirping the tires on light throttle shifts.
I'm running stock line pressures FYI. When I first got the trans back I was still running my very high 60E pressure settings and the trans was literally chirping the tires on light throttle shifts.
#29
TECH Fanatic
This is also in a 60E tune since I used Frost's 2-relay adapter, so 80E programs may be different.
It's nice being able to putt-putt around town at 1000RPM and not disturb the peace lol.