4th gear going weak because of TC ?

[GeForce1986]

greetings mopars

i have been playing with the TC apply and release tables for ever also the slip tables that i zeroed them now
yet i still couldn't get what this gear wants !! and now its going weak and feel like there is something holding it specially in 4th but in 1to3 i dont mostly feel it as the car going fast on them because it have a good power and a 3.92 rear gear but again 4th are where i lose to my opponents

so dose any one can tell what am doing bad here ? should i lock it all or open all or there is a mix ? the tune is ATTACHED
knowing the its nag1 gear + stage 2 valve body + blue tops + 3800 tc with lock up + mtcm + 3.92 lsd rear gear
car power is on 500s with more 100 nos option but the tune attached is without the nos , in case someone will want to get help from it

[GeForce1986]

no one knows any tips on this ?

[DodgeBoy_8HP]

Hello,

I am not 100% familiar with nag1 transmission, but as far as I can tell:
- Torque Converter Apply/Release should not have the same values (on A8, release values MUST be lower than apply values)
- Slip: it is more related to shift comfort (in case it slip a little during gear shifts, it increases comfort - on sport/track mode you could zero them for higher gears)

Also, I do not know if it is desired by you, but your shift schedule on performance mode looks quite aggressive: same shift point starting at 40% throttle. Lastly, your shift adaptation seems a little off to me (some gears are active, others are not).

Dodge Boy

[GeForce1986]

Hello,

I am not 100% familiar with nag1 transmission, but as far as I can tell:
- Torque Converter Apply/Release should not have the same values (on A8, release values MUST be lower than apply values)
- Slip: it is more related to shift comfort (in case it slip a little during gear shifts, it increases comfort - on sport/track mode you could zero them for higher gears)

Also, I do not know if it is desired by you, but your shift schedule on performance mode looks quite aggressive: same shift point starting at 40% throttle. Lastly, your shift adaptation seems a little off to me (some gears are active, others are not).

Dodge Boy

thanks for the reply bro .

regarding the slip i zeroed all but am trying to figure what the best apply and release tables numbers for mt tcc !
i don't mind aggressive shifting as the car is only for race use but in same time i want it to perform so !!
shift adaption that i don't know what it do .. i did shut them off all then i on them all didn't see any different so i get them back to what i saw in some srt 6.1 tables but that might be not good so if you can shed us a light here to know what this tables do .

thanks again ^^

[DodgeBoy_8HP]

NP!

Yes, I noticed very aggressive shift points.
Adaptation is to maintain the shift stable throughout the transmission lifetime.

So, I believe you need to play around with TCC and shift adaptation (potentially shift schedule too).

In case you need support to tune your trans, let me know: [email protected]

Thanks.
Dodge Boy

[dangrebel]

try to unlock the converter in 4th also. do a test run. Max the value out for the 4th gear apply and release to keep it unlocked.

[DodgeBoy_8HP]

Why keep TC unlocked? If the goal is to not have all the available torque, have slip and increase trans temp, than leave it open...

Otherwise, keep it close: better fluid dynamic (converter <-> trans), better response and low trans temp.

I am not sure if you are aware, but for each 5 degrees Celsius trans runs hotter than 90 Celsius decreases oil lifetime by almost half....

[GeForce1986]

try to unlock the converter in 4th also. do a test run. Max the value out for the 4th gear apply and release to keep it unlocked.

i did try that before and it felt like the gear is open free but the timing was slower .. am looking for a way to make the best use of my ati 3800 stall lock up tcc and the blue tops .

thanks too ^^

[GeForce1986]

hello !!