Adding TUTD Sport shift to the 6L80 6L90

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The most important fix for our desert race truck was to add TUTD sport shift mode to the 6L90 in our 1978 Jeep J10 race truck named HONCHO! This will help us keep the engine at the best RPM to have power under the foot when needed. This is the second video I have done on the 6L90 which provides some great links if you are working on your own transmission. I hope you will choose to subscribe and track our progress from Ensenada to La Paz at the Baja 1000.
Link to the HP Tuner forum
forum.hptuners...
Instruction Document link on HP Tuner
forum.hptuners...
The parts you will need to make the harness.
6L80/90 connector:
www.mouser.com...
Cable seal:
www.eficonnect...
8.25k ohm 1% tolerance resistor:
www.digikey.co...
4.42k ohm 1% tolerance resistor:
www.digikey.co...
1.5k ohm 1% tolerance resistor:
www.digikey.co...
My video other video • Chevy Silverado transm... may be useful for some beginners attempting a teardown of the 6L80 or 6L90 for the first time. The real pros have made some great videos and the links are below.
• 6L80 overhaul
• 6L80/6L90 transmission...
• GM Hydra-Matic 6L80 / ...
• 6L80/6L90 valve body i...
• 6L80/6L90 valve body r...
Check out or team and honcho build at www.NTDRacing.com
Here is a link for the manual for the 6L80 and 6L90
shop.ukrtrans.b...
I found these huge snap ring plyers on Ebay.
www.ebay.com/i...
You will need sockes like these to remove the valve body.
HORUSDY 11 Pc Female E Torx Star Socket Set/Rail, Female External Star Socket Set E4 - E20 Torque Socket Set
amzn.to/3fdHFgh
I loved every moment I served in the Air Force, except the times we got the worst news about a friend that would not be coming home. These tragic events instantly left families without a Father or Mother and many times without their primary income source. While the US Military has resources to help families carry on, more needs to be done. This is where organizations like Folds of Honor step up. This amazing foundation provides scholarships to spouses and children of America’s fallen and disabled service members. Please consider a donation to Folds of Honor using the link below.
HONOR THEIR SACRIFICE.
EDUCATE THEIR LEGACY.
folds-of-honor....
#NTDRacing #FoldsofHonor #6l80

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28 сен 2024

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Комментарии : 70

@chrisrundlett3707 2 года назад

That is a great video! I was trying to figure out the TU/TD shifting on my own and had called Lokar to ask them for some help, they referred me to your video. Perfect!

@ntdracing 2 года назад

Perfect. Hope you can get it to work.

@chrisrundlett3707 2 года назад

@@ntdracing Me too! Is there any reason for the shift signal to go through a CAN Bus gateway or does it make the most sense to just wire it directly? I am guessing that the signal being sent to pin seven is just telling the TCU to shift up and down and that the TCU is telling the ECU what gear it is in through one of the other pins correct? Sorry - I am really new to this, figuring it out slowly...

@josephmora5050 10 месяцев назад

About ready to tackle mine… I had a few questions. I bought a new 6l80 from GM. They actually have a set up for pin number 7 on the trans. I have two connectors, a two prong and a four prong. I was curious to see if I could get some help. I’m also a little confused the actual wiring from the shifter as to where they go. Im a bit new to this so sorry for my ignorance. Im sure your schematic explains it all but im still learning 😊

@RyanBaker 5 месяцев назад

This was the best informative video I have come across for this modification. Thank you very much!

@ntdracing 5 месяцев назад

Thanks. Hope it works for you.

@GenV_Restomods Год назад

Spectacular info, greatly appreciated. Now got get yourself a Gen V LT1/L87 and the 8L90 or the 10L90, that's the ticket.

@ntdracing Год назад

Just put in TH400s. Going backwards. Thanks.

@bogdankril 2 года назад

Love your videos. Thank you for the Friday night special release. I'm committed to leaving a comment for every video you post. I know it helps. Have a great weekend.

@ntdracing 2 года назад

Thanks. The comments really help.

@MrBanks53 2 года назад

This is EPIC. Exactly what I was looking for!

@ntdracing 2 года назад

Thanks for watching.

@mikematthews2479 2 года назад

Can’t wait to try it! Thanks Dave!

@HAMMER_2.2 8 месяцев назад

Great video!! Im thinking of adding the same Sport shifter to my OBS Chevy baja bulld! Could you possibly do a huge favor for me and tell me approximately how many inches the lever sits when in park and D /as far back as it goes? This console we built has a limited opening for the shifter lever. It was originally built around a B&M stealth shifter in which the Lever basically stays in place, only ratcheting nack & forth about a half inch. Im hoping the travel of this Lokar will fit within my constraints I have. Thanks man !

@LucasGabriel-lw4os Год назад

Good morning, is it possible to have a more detailed diagram on the connection of the sensors because they are 3 wires each and the lever has 3 so there are 9 wires, and in the video you show connecting only 3 resistors, and a better explanation about the connection is possible?

@josephmora5050 10 месяцев назад

This would be soooo helpful! Better yet if you can walk me through it ill make a video for the people and give you the credit! 😊

@candyman1967 2 года назад

Can I just make it a sport shift with buttons and no TUTD I have a stand alone fuel injection motor and just want to be able to shift the 4L80E manually

@jamesmccombs-fb5rw Год назад

is it possible to have a more detailed diagram on the connection of the sensors because they are 3 wires each and the lever has 3 so there are 9 wires, and in the video you show connecting only 3 resistors, and a better explanation about the connection is possible?

@ntdracing Год назад

I will try to work on something. In the mean time you can think of it like this. 12V positive from your battery goes to all three switches on the shifter. I think I used the black wires for 12V in. The red wire on the main shifter becomes hot when you put the shifter into sport mode. This red wire goes to the 8.25k resistor. The tap switches are different. Black goes to 12V (your battery). Blue goes to either the 4.42 or the 1.5. After the resistors, all the wires come together and are pugged into pin 7. I sure hope this helps. If you have the wiring correct and you test it like I do in the video, make sure you follow the steps to get the HP tuner part right. Specifically the part when you figure out what gear the computer thinks it is in when you move the shifter to sport mode and activate the 8.25k resistor. Good Luck

@Alx_5.7 Год назад

How much for a harness like that i need it

@ntdracing Год назад

Easy to make. Maybe $10.

@dogman_ 2 года назад

This would be nice in a classic 66 Chevy C10🤔

@AbstractDreamz 2 года назад

Just programmed my 6l90e with Kilduff horseshoe with manual mode! Thanks for the video!

@newergonnausethis Год назад

Is the shifter/lever still in "D" or is it needed to go to the next detent "M" for this to work? I'm being told if I program it to "D" I will have to go to neutral and back to "D" to disengage it.

@dsr_swap Год назад

Yes, you're right. If you program it to get into TUTD mode from D, in order to be in Drive mode, must go N and then D again.

@newergonnausethis Год назад

@@dsr_swap OK! So in the Lokar case, you have to go to sport/TUTD. Then back to D then ratchet to N and back to D to release the TUTD?

@dsr_swap Год назад

@@newergonnausethis yes sr.

@newergonnausethis 2 года назад

Fantastic video! What a great job! Question: Could this be made to work with button on the steering wheel and the stock column shifter? (Given that I can get the lever into the correct position). Could this work i "D" and just have a switch to activate TUTD mode?

@britman1856_ 5 месяцев назад

9:25

@AbstractDreamz 2 года назад

100% awesome video that came at the right time for me!!! 76 Buick Regal restomod. 6.0 L96/6L90E

@plutorootswoodworking Год назад

Anything funky with your swap? I’m buying a 1966 c30 that’s got the same combo (l96 / 6l90e). It randomly throws a p150A code but runs, sounds great and drives other than throwing that code. The guy who did the swap kept the stock harness, I’m wondering if I’m better off ordering a standalone harness from psi and starting from there.

@nicledbetter9689 9 месяцев назад

This video is great! But I struggled with mine for two months, rewiring, reflashing, etc. Everything was right. I finally found a post by V8R on that same HPtuners thread. I needed to set U0121 and U0140 to do not report. These are codes looking for BCM and ABS module. This change allowed TUTD to work perfectly.

@David-ir9dx 2 года назад

Great job and a great resource! Thanks for putting this together

@thomaslapointe4671 Год назад

Great Content & Video Sir. ~ Wanted to use a Tundra TUTD Shifter in a 96 Toyota T3 Locked Land Cruiser w 416 (LS7 Crank & Ti Rods Stroker w Aussie Transfer Case adapters to a 6L80E Thank You, So much ~ the knowledge, tools, ECU editing ~ Control Synergy 😎

@PierAcerni 3 месяца назад

What a great tech video man! huge thanks from the comunity...

@K4gixxer1000 2 года назад

Great job! if you could make me something to get my tutd off the column in the 14-18 silverado/sierra i would pay good money!

@jimcollins9316 Год назад

At 18 minutes, approximately how fast were you going?

@mamz1404 2 года назад

اللهم صل وسلم وبارك على عبدك ونبيك محمدﷺ

@arongoulding5069 2 года назад

Would this same principle work on a 4l60e

@ronfreitas1456 2 года назад

Thanks for the awesome video! very informative and helped me alot.

@brandonloll4262 2 года назад

Man I wish someone would figure this our for the 8l90! awesome job.

@meandmissy1970 Год назад

Great information. Thank you 👍👍👍

@filiptrojanek5083 Год назад

Very informative video. I am reviewing all of the supporting docs you listed right now. It look like the link to the 6L80/6L90 manual is broken. Do you have a PDF of this you could make available? Thank you!

@ntdracing Год назад

I will look. Seems like that doc is a moving target.

@dandorris8531 2 года назад

Just stumbled on to this great info. I didn’t know those trans could handle that kind of thrashing. What kind of upgrades were done to the trans to make it survive? I actually acquired one of these believe it’s a 90E but not sure how to identify the difference. Pulled from a perfectly driving vehicle.

@ntdracing 2 года назад

I think the trick is to keep them cool. We melted one down at Vegas to Reno. Hit 270 degrees. Since then we have quadrupled the size of our trans cooler.

@abdullahkhalidch5401 Год назад

Hi everyone, Any guy one who is facing issue to go back from Sports mode to D mode?

@ntdracing Год назад

Need to go to Drive then cycle through Neutral. Works for mine. Good luck.

@ResurrectionUph Год назад

Well made video

@davidlassiter7769 2 года назад

I need to check the Shifter I got for the ‘81 CJ-7 to see if it has the speed shift mode.

@ntdracing 2 года назад

If not, you should sell it to me.

@richpryor5637 2 года назад

Wow! Great job Dave.

@stephendudla 2 года назад

What wire did the resistors go onto do you have a wiring diagram for the harness you built? I just purchased all the items in the description

@ntdracing 2 года назад

I electrical taped them to a popsicles stick as a strain relief. Pretty high tech.

@stephendudla 2 года назад

@@ntdracing I'm trying to wire mine I'm no electric expert so the NO/NC thing I'm confused lol did the resistors go to the blue wires black goes to ground and red to 12v?

@J2A61 2 года назад

Thank you so much for this video I have a LT swap with the Lokar shifter and didn’t have a clue as to how I was going to make it work… your right on time with all the answers, THANKS!!! 👍🏾👍🏾

@ntdracing 2 года назад

Nice! Any shares are appreciated.

@J2A61 2 года назад

@@ntdracing I have a time lapse of my genV swap on my channel, I actually just had it tuned about a week ago and the shift points are off. But with your help I’ll be able to shift it manually so that will keep me from trying to get the tuner to fix his mistakes. (Which is hard🙄) sadly most of these guys just take your money and don’t own up to their mistakes as a tuner. But oh well it is what it is

@J2A61 2 года назад

@@ntdracing so to be clear this is one wire and jump the squats together using resistors in the right location?

@ntdracing 2 года назад

@@J2A61hope this answers your question. 12V on one side and pin 7 on the other with some switches and resistors in the middle. 0V = Trans in normal drive mode Move the shifter to sport. Engage one switch and resistor = Trans in sport mode waiting for a command. Tap up or down. Engage two switches resistors to send a shift up or down signal.

@J2A61 2 года назад

@@ntdracing yes sir, your the man! Thanks for the rapid response I’m wiring this up as we speak