Torque converter tuning hp tuners I know some 8 speeds have a shudder but you say this is a 6L80 right? According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. This is the last part of a three part series covering basic HP Tuners. 2016 Jeep SRT - TCM Torque Converter Tuning I reached out to my transmission manufacturer and they provided me with a map for comparison. 0 that has almost all torque manangement turned off when comparing to a stock tune. Modifying these values is recommended for high stall or aftermarket torque converter users. What would this group recommend? Delete DOD? Reduce Slip and if so which gears? Eliminate lock up in gears? Does anyone sell an HP Tuner standard program for this replacement? Thanks - diving into this project and looking for guidance. He'll discuss Torque Management, eliminating Torque Conv Circle D torque converter - Pro Series - Billet cover with triple disc 1800-2000 stall speed. From torque converter lockup and line pressure to shift points and torque management, we’ll cover the foundational concepts that play a pivotal role in optimizing your vehicle’s transmission performance. Shift time is for adaptives of a stock unit. i am working tuning my 16 sierra 2800 stall. Just put a 6” lift on the daily 2011 Silverado and finally caved and bought HPTuners. when you say to edit the torque model are you talking about the virtual torque table? So basically edit the Airmass, MAP, E85 Airmass and E85 MAP for all the spark settings from -10 to 40, from 1200-5600 (max in the table) RPM. Once you modified the 4l80e and use a higher stall converter the shift times may not be reported properly in the ECU and this could lead to over-adaption (crazy pressure adjustments automatically). Instead, the pressure plate maintains a small amount of slippage, about 20 RPM, in SECOND, THIRD, and FOURTH gears, depending on the vehicle application. 0 *Throttle Rate to Unlock Hi/Lo Tip-in & Tip-out 500. Has anyone had success with their tuning for the 8L90 in the 2015-2020 GM trucks? If so are you willing to share details of your results and your tune file? I have been going through and have decided on the DOD Disable and omitting TCC lockup in the lower gears, but I have heard mixed things about people playing with pressure changes and temperature compensation and I am wondering if anyone . So far I have had good luck changing transmission parameters, but now I am stuck on tuning the torque converter lockup clutch. The car will work perfectly fine leaving the converter NEVER "locked" and as a matter of fact, if you drive with MDS mode functioning, it won't lock any time MDS is active. I have watched lots of youtube videos and reading and went with this approach - no TCC in 1 through 3, 0 slip TCC in 4 through 6. Do this by turning off the clutch entirely in 1st gear and datalogging a few launches from 0mph with a HOT trans. My stock converter stalls at 2300RPM after removing the stall torque management. If the concern is not present in Mode A, then the vibration concern is not TCC shudder. Aug 2, 2013 · The stock converter stall is actually 2200RPM, it's only limited to 1800RPM by the PCM stall torque management. performance is a bonus. Trying to keep this HP tuner related, it appeared from a post above that there are vendors who will tune your engine / transmission. See the 'Background information below for more details. Open, Slip, Lock, and Overlock. Increase the lock pressure. You could try keeping 1 - 3rd gears unlocked to help a tiny bit with take off but your idle will still suffer. Aug 18, 2005 · One of my tuning partners put a Precision Instruments 2,400rpm Vigilante Torque Converter in a 2000 Corvette Coupe. Sent the converter back to circle d and they said it had a cracked stator race. 0 / -500. I put the converter in with the rebuilt trans and the shift from 3rd to 4th gear was hardly noticeable with no apparent lock up from the converter, roughly 3000+ rpm at only 60 mph. I was able to take a look at many of the parameters and have a couple of questions about the TCC tabs. Feb 2, 2012 · I have the "other" tuning software also. I have a 2010 GMC Sierra 4WD, 6. 2018 Silverado 5. But it has a clutch. I'm trying to diagnose if my torque converter is failing. I. Basically I'd like to temporarily remove the lock up from all 6 gears and see if the amount of heat generated decreases. Also, what is up with these tables? On the airmass table at 40 spark for example peak torque is at 1200 rpm? that All the shops want to rebuild. 11 diff gears Recently we purchased a caravan that might be slightly heavier than the car should tow 2800kg Mar 1, 2010 · Torque Converter Tuning Torque Converter Clutch Duty Cycle (TCC) Maximum & Minimum Pressure: This section deals with the TCC PWM (Pulse Width Modulation) Apply/Release pressure. My torque loss event was upon ramping up throttle to ~50% with 2nd gear selected on column / shifter. The pressure plate does not fully lock to the torque converter cover. The last shop quoted $4,300 for a total rebuild but with only a 12-month warranty. Slip: The clutch is engaged with a specific controlled slip RPM. If you install a high stall converter you definitely have to change the stall torque management RPM settings in the tune to get the max benefits. We've gone through shift firmness (Positive Pressure vs. HP Tuners GM Gen III part 27 walks you through how to program automatic torque converter lock up and shift pressures to improve drivability, performance and Jan 21, 2022 · Hey guys! Somewhat new here. Really weird. Note the RPM when Vehicle speed registers 1-2mph. I logged 30 minutes in two files and only had one torque loss event and no gear fluctuations as in previously shared log file. The converter clutch operates in one of 4 distinct modes. Open: No engagement of the clutch at all. Aug 1, 2022 · I think the design of the stock 6L80 torque converter generates too much heat during lock up. the converter is still slipping a lot when you try to lock it. However, I'm reading more into tuning the TCC to identify other ways to increase longevity but I'm struggling with this conceptually. If the concern is gone with the torque converter clutch disabled (Mode B, TCC Open) and is gone when the torque converter clutch enabled (Mode C, TCC Locked), the vibration root cause is TCC shudder and the torque should be replaced. 3L, rebuilt 6L80 with new Precision HD (billet case) torque converter. Temp table) changes as well as some shift speed tweaks. It seems that my changes work when just driving around, but at WOT it will always lock the TCC about 1 second after the 1-2 shift, and the clutch always locks rather slow and sluggish. a friend at work has a 14 camero that he has had a lot of work done on. I have a tune on my 04 4l60e with 6. Your Engine's torque and rear gear may stall a few hundred RPM different than your TC advertised RPM. But they all use the same OEM torque converter. ie. 0 *Trans Torque Converter Control Slip & RPM tables left stock * Switches for All Torque Reductions / Torque Rate Limiting / Reduction on Shift / Truncation all 0. 2L, Whipple Supercharger, "Pterodactyl" 6L80E (Alto Clutches Welded shafts, etc. e. The torque converter isn't a clutch. Due to all the horror stories regarding TC failure and lifter failure i've installed the updated 154F TBV and now purchased HP tuner. Priority #1 with tuner is disabling AFM which seems a no-brainer. main goals are drivability and reliability. In this video, I go through the steps to downloading, installing, and using HP Tuners Apr 11, 2024 · This beginner-friendly guide will navigate the intricate world of automatic transmission tuning. heads, big cam, stall converter, etc. ), 2500 Billet Stall. Mar 23, 2021 · I ordered a 2600 Circle D stall converter with plans on camming my engine in the future. Transmission > torque convertor> apply /release>performance isn't that supposed to be set at 256 across the board ? my 4l60e is Gen3 L59/4L60E LS3 cast manifolds, Small Cam change, 2800 Convertor, MPVI, using MTX-L for wideband tuning Well if it's cammed now, it's likely an issue, it needs a larger converter to idle smoothly. Google how torque converters work to see what I'm talking about. Hey guys Looking for some advice on where to start with tuning a 6l80e with some do's and dont's Backstory Pretty new to HP Tuners (and tuning in general), I recently transplanted a 2008 statesman l98 and 6l80 in to my Patrol (a 2008 ST patrol, ex 3,0)which has 35inch tyres and 4. all done by local performance shop. 0 "?A torque converter with an electronically controlled capacity clutch (ECCC) This transmission is equipped with an ECCC. *Converter Clutch Boost Pressure 75. I'm not sure why the torque cut out in 2nd gear like that. Often this is a problem if trying to lock the converter below about 45mph with decent stall converter. 25RPM difference between turbine speed and input shaft speed. Another common problem is the actual lockup speed, even with smallish converters its very hard to avoid surging and lock/unlock race conditions at low throttle low rpm cruising. Recommend upgrading to a 3200. It held the gear. I got this software because of better support for this transmission. this is my first time tuning so ive been learning a lot. And that was with an oem torque converter rebuilt. It didn't change gears though. I mainly purchased it to adjust the speedo/disable afm, but I’ve been doing some research into converter tuning and think it would be worth while considering how good everything feels at 110k. Let’s get started. 2019 CCSB Bighorn - Excited HP Tuners finally supported Cummins CM2350&2450 platforms Join us as tuning expert Tony Gonyon helps resolve a lot of common GM 6L80 Transmission tuning woes. I have rebuilt this transmission after it went out running the attached tune (with me now changing shift points, shift pressures, and tc locking). hmqyc oejmjpc arcy leisq ouqil fjvhp ucpvm gqjg eai kwyiy qpuxpm lfxqwe nfaxe nglcszb pogn