Overland Tailor Tuning (OTT) - 4G (2024+) Tacoma Development

[32spoke]

Yes sir! Our 2016-2023 Tacoma 3.5L calibration carries CARB EO D-883. We fully intend to have the 2024+ models follow along.

I do not have an ETA at this time, however.

Thank you

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[davisjm0311]

Any rough ETA on the hybrid variant being released?

 

[Tacocho]

Will this tune still work on regular fuel (87)? If yes, are there still benefits to the tune? Can it adapt to regular or premium fuel?

 

[PhilosopherSergeant]

Can't wait for this to be released! Sign me up!

 

[Drifte]

Im glad I found this post. Ive always hesitated to use a piggy back system (outside of the old Apex-i SAFC days).

I see target peak boost is being kept about the same, and increase wgdc to fix the taper. That will be great, really feel it fall off as you accelerate and makes for a rather boring drive. Ive read somewhere they run about 14psi, nothing crazy, I havent seen info on the turbo itself to see if its capable of much more without reduced life.

I would be interested in running this tune, am I able to use any logging software on my end to check on the tune (really like MHD setup)? Im located in Iowa, and guessing we dont have a local tuner with your programmer nearby sadly.

Looking forward to hearing how the tuning progresses.

-Colton

 

[JustDSM]

Hey guys! Hope everyone had a wonderful holiday season!

It's been a while, but we've been hard at work with development. We're making progress and have the transmission details worked out giving us control by drive mode status and other developments. I wanted to drop in and remind everyone that we've not forgotten or slowed down our push to bring something fun and exciting to the 4G Tacoma!

If you're interested in a sneak peak of what's coming/possible with this platform, below is a run from a Beta file which is compatible with Regular through Premium grade fuel (This was done back-to-back w/ premium as the baseline). There is massive power potential relative to the previous generation's N/A engines. While this chart only shows WOT power, the calibration enhancements at part throttle are as as big or larger. There is a noticeable improvement in spool and part throttle torque.

Towing trials and data analysis have shown that the increase in torque available at part throttle can improve (lower) transmission temperatures, allowing the converter to stay locked or in a gear higher than it would have otherwise in stock form.

I think the best way I can summarize the current landscape for tuning the 4th Gen trucks would be: They don't necessarily "need" a tune like the 3rd Gen did, but what is possible, and what you can gain is 3-fold what was possible on any of the prior generation trucks. These things make 5.7L Tundra torque and horsepower tuned - in a midsize!

RED: OEM Calibration (Gear Locked); 91 Octane
BLUE: OTT Beta Calibration (Gear Locked); 91 Octane

 

[GMak621]

Hey guys! Hope everyone had a wonderful holiday season!

It's been a while, but we've been hard at work with development. We're making progress and have the transmission details worked out giving us control by drive mode status and other developments. I wanted to drop in and remind everyone that we've not forgotten or slowed down our push to bring something fun and exciting to the 4G Tacoma!

If you're interested in a sneak peak of what's coming/possible with this platform, below is a run from a Beta file which is compatible with Regular through Premium grade fuel (This was done back-to-back w/ premium as the baseline). There is massive power potential relative to the previous generation's N/A engines. While this chart only shows WOT power, the calibration enhancements at part throttle are as as big or larger. There is a noticeable improvement in spool and part throttle torque.

Towing trials and data analysis have shown that the increase in torque available at part throttle can improve (lower) transmission temperatures, allowing the converter to stay locked or in a gear higher than it would have otherwise in stock form.

I think the best way I can summarize the current landscape for tuning the 4th Gen trucks would be: They don't necessarily "need" a tune like the 3rd Gen did, but what is possible, and what you can gain is 3-fold what was possible on any of the prior generation trucks. These things make 5.7L Tundra torque and horsepower tuned - in a midsize!

This is amazing. Can’t wait

 

[Baltimore]

Thanks for the update!

Are these graphs with proper 87 octane as the "regular" and are you using 91 or 93 as your premium.

Please label/legend for us

 

[JustDSM]

Thanks for the update!

Are these graphs with proper 87 octane as the "regular" and are you using 91 or 93 as your premium.

Please label/legend for us

During this testing, the truck had 91 Octane in it for both the stock and tuned run. Unless explicitly stated, we'll always compare the vehicle in a "back-to-back" state to avoid confusion.

I've updated the original post.

 

[Soft Taco]

Watching closely

 

[tacorancher]

If OTT can get 400HP out of the Hybrids that would be sick.

 

[The_SR_Sir]

We intend to release a calibration specifically for the SR trim to bring it up to its full rated output, alongside our comprehensive OTT power calibration and manual transmission calibrations. We recognize the importance of giving the SR and manual options the attention they deserve, and while further development is needed to ensure everything meets our standards.

I feel like this may be a stupid question but for those of us with manual transmissions, will the OTT tune take care of the rev hang? I've seen varying answers on why the 4th-Gen has it and most people seem to narrow it down to either software for emissions or a "heavy flywheel", however, I'm inclined to believe it's the former as I noticed my truck doesn't rev hang at all or nearly as much until it's at operating temperature.

Also curious how the OTT tune gets installed? Forgive me if it is already explained somewhere on the forum or if I missed it in this thread. I'm very interested and just wondering if it's something you send your ECU out for or if it's done through OBDII port, or etc.

 

[PhilosopherSergeant]

The Anticipation is killing me lol...just watched the vid on youtube of the first customer to have it done!

 

[Tacocho]

I agree, the rev hang isn’t bothersome to me anymore but at first it definitely felt noticeable. I slowed my shifts down and it fixed it. I’ve had cars in the past tuned to remove rev hang, and it allowed me to shift quick and smooth without issues. Looking to do the same on my manual Tacoma

I feel like this may be a stupid question but for those of us with manual transmissions, will the OTT tune take care of the rev hang? I've seen varying answers on why the 4th-Gen has it and most people seem to narrow it down to either software for emissions or a "heavy flywheel", however, I'm inclined to believe it's the former as I noticed my truck doesn't rev hang at all or nearly as much until it's at operating temperature.

Also curious how the OTT tune gets installed? Forgive me if it is already explained somewhere on the forum or if I missed it in this thread. I'm very interested and just wondering if it's something you send your ECU out for or if it's done through OBDII port, or etc.

 

[SP4RUNNER]

OTT, I am located in So Cal where or what shop do you guys affiliate yourselves with out in my area Los Angeles/ South Bay cities / OC ?

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