Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Burmapeak · Mar 1, 2019

Stoked4 said: ↑

Anyone have any issues downloading the new flash manager?
Click to expand...

Nope, but I Can't get the CUW file to work with my techstream.

Stoked4 · Mar 1, 2019

Burmapeak said: ↑

Nope, but I Can't get the CUW file to work with my techstream.
Click to expand...

I seemed to update flash manager
But where do I find these “performance tunes”?

Deucer01 · Mar 1, 2019

OVTune[OP] said: ↑

So. Dyno testing today went well.
More pictures, and such as we explain further this weekend.
First post has been updated.

Truck testing : 100% Bone stock 2017 Tacoma long bed. No modifications. Stock Tires.

Testing included :
- Stock ECU 04B03 (PRE TSB File)
- STOCK ECU TSB 04B04 ( after seeing this nobody should be on the fence about updating to TSB, even if you're uninterested in tuning )
- Tuned 04B04 Performance version 87 octane
(93 octane testing will commence tomorrow)
- Acoustic Valve Control Tuning - Optimal Torque point.

(when comparing these results to our test truck, please understand our test truck was tested under Dyno Dynamics wheel measure non shootout mode, which reads considerably lower.)
These numbers are still accurate and what is expected on a Dyno Jet. NO dyno settings were modified.

Our Goal: Ensure we can provide the absolute BEST calibration for these trucks possible, even under strict octane requirements. More and more people want performance without paying at the pump. So we sought out to ensure that you are losing nothing by running 87 octane.

First we began with running 04B03 stock, vs 04B04 Stock.
We set the truck up on the dyno, and ran 04B03.
Immediately after we updated the ECU to Toyotas TSB ECU version 04B04 through techstream.
- The truck immediately picked up a noticeable amount of low end torque and a positive gain or +6 horsepower over 04B03 stock. (note, no changes except updating to 04B04)

Next we sought out to tune the Acoustic Valve control. We all know that sudden "surge" in power about half way through the RPM band. Well this is the Acoustic Valve control activation.
The ACIS has a 2 phase point, and has more than 1 RPM activation point depending on "low and High" opening / activation.

First we began by testing some slight RPM adjustments, and were able to eliminate the torque hole where the stock activation takes place.

Through further adjustments we were able to create a torque spike, but this is from a surge in manifold turbulence and you can see the resulting slope and recover afterwards. Not really ideal for tuning or driving.

Finally after multiple tests we found the most IDEAL location (which is NOT stock) to create more torque in the lower RPM while reducing the torque slope after activation.
You can see below, and we further smoothed this through changes to intake valve timing (which does NOT reduce any torque)

Finally, our resulting changes.
-04B04 Performance 87 octane with the new ACIS tuned point

This is a tuned gain with 87 octane that will provide real world results where the truck is driven and needed the most.
Include gear locking, and you've not more than 50 ft lbs available at 3100 RPM, tested. This is an absolute requirement for anyone who would like to tow WITHOUT having the engine screaming at 5000 RPM.
(for people who are already on 04B04, testing results ~20-22 ft lbs)

Final result:

Note-

This is our 87 octane performance tune vs 87 octane stock tune.
We get MANY requests about people wanting as much power and response while remaining on 87 octane, so we thought it would be best to give this octane the attention people are requesting.
As a result we are seeing VERY good gains for 87 octane.
Through tuning the intake manifold, modifying valve timing to create more torque where more flow is now available via intake manifold runner tuning, we have created even more torque in the low end than EVER before, on 87 octane.

Results below are how the truck came in (04B03 pre -TSB) To UPDATED 04B04 Tuned 87 octane. This is a massive difference.
Now the engine is making more than 250 Horsepower, measured at the wheel, from 5200 RPM to 7000 RPM.

Through extensive testing, and months of development we have found, tested, and ensured we can continue to provide the absolute best, unmatched, calibration for these trucks possible.
This includes development and testing for things that we had listed to do outside of our 1.05 release,
- Acoustic Valve Tuning
- Additional Intake and Exhaust Valve tuning to match new ACIS tuned points
- Focusing on improving our 87 octane tune
- Lower RPM torque gains are made NOT through ANY ignition or fueling changes. ONLY through modifications to throttle, torque, and shift limitations.

Click to expand...

Nice work! Can't wait for the updated 04B04 87 Performance tune to be released.

OVTune · Mar 1, 2019

Deucer01 said: ↑

Nice work! Can't wait for the updated 04B04 87 Performance tune to be released.
Click to expand...

we are happy to provide this update, and totally free!.
It took me some time to dissect and properly define the acoustic control, all activation points by load and rpm triggers. The way the ecu uses single byte activation switches is a piaaaan

Deucer01 · Mar 1, 2019

OVTune[OP] said: ↑

we are happy to provide this update, and totally free!.
It took me some time to dissect and properly define the acoustic control, all activation points by load and rpm triggers. The way the ecu uses single byte activation switches is a piaaaan
Click to expand...

I only understand half of what you're saying but this sounds awesome. lol Running the 87 Performance tune now and super happy with it. And looks like you've found even more low end torque and flattened the powerband to make it even more useful and truck-worthy.

crigg93 · Mar 1, 2019

Mattchew said: ↑

@OVTune

Not sure if others have contacted you about the logger but I'm having issues with it. When I open the program up it lets me select what device I want to use to connect to the truck and I select the tactrix adapter. It brings up the stat info lower on the screen and then just shuts down. Haven't been able to get any further with it.
Click to expand...

Maybe I missed it somewhere in this thread but was there ever a fix for this? I'm having the same problem with the logger crashing right after it opens.

Chipi3s · Mar 1, 2019

OVTune[OP] said: ↑

So. Dyno testing today went well.
More pictures, and such as we explain further this weekend.
First post has been updated.

Truck testing : 100% Bone stock 2017 Tacoma long bed. No modifications. Stock Tires.

Testing included :
- Stock ECU 04B03 (PRE TSB File)
- STOCK ECU TSB 04B04 ( after seeing this nobody should be on the fence about updating to TSB, even if you're uninterested in tuning )
- Tuned 04B04 Performance version 87 octane
(93 octane testing will commence tomorrow)
- Acoustic Valve Control Tuning - Optimal Torque point.

(when comparing these results to our test truck, please understand our test truck was tested under Dyno Dynamics wheel measure non shootout mode, which reads considerably lower.)
These numbers are still accurate and what is expected on a Dyno Jet. NO dyno settings were modified.

Our Goal: Ensure we can provide the absolute BEST calibration for these trucks possible, even under strict octane requirements. More and more people want performance without paying at the pump. So we sought out to ensure that you are losing nothing by running 87 octane.

First we began with running 04B03 stock, vs 04B04 Stock.
We set the truck up on the dyno, and ran 04B03.
Immediately after we updated the ECU to Toyotas TSB ECU version 04B04 through techstream.
- The truck immediately picked up a noticeable amount of low end torque and a positive gain or +6 horsepower over 04B03 stock. (note, no changes except updating to 04B04)

Next we sought out to tune the Acoustic Valve control. We all know that sudden "surge" in power about half way through the RPM band. Well this is the Acoustic Valve control activation.
The ACIS has a 2 phase point, and has more than 1 RPM activation point depending on "low and High" opening / activation.

First we began by testing some slight RPM adjustments, and were able to eliminate the torque hole where the stock activation takes place.

Through further adjustments we were able to create a torque spike, but this is from a surge in manifold turbulence and you can see the resulting slope and recover afterwards. Not really ideal for tuning or driving.

Finally after multiple tests we found the most IDEAL location (which is NOT stock) to create more torque in the lower RPM while reducing the torque slope after activation.
You can see below, and we further smoothed this through changes to intake valve timing (which does NOT reduce any torque)

Finally, our resulting changes.
-04B04 Performance 87 octane with the new ACIS tuned point

This is a tuned gain with 87 octane that will provide real world results where the truck is driven and needed the most.
Include gear locking, and you've got more than 50 ft lbs available at 3100 RPM, tested. This is an absolute requirement for anyone who would like to tow WITHOUT having the engine screaming at 5000 RPM.
(for people who are already on 04B04, testing results ~20-22 ft lbs)

Final result:

Note-

This is our 87 octane performance tune vs 87 octane stock tune.
We get MANY requests about people wanting as much power and response while remaining on 87 octane, so we thought it would be best to give this octane the attention people are requesting.
As a result we are seeing VERY good gains for 87 octane.
Through tuning the intake manifold, modifying valve timing to create more torque where more flow is now available via intake manifold runner tuning, we have created even more torque in the low end than EVER before, on 87 octane.

Results below are how the truck came in (04B03 pre -TSB) To UPDATED 04B04 Tuned 87 octane. This is a massive difference.
Now the engine is making more than 250 Horsepower, measured at the wheel, from 5200 RPM to 7000 RPM.

Through extensive testing, and months of development we have found, tested, and ensured we can continue to provide the absolute best, unmatched, calibration for these trucks possible.
This includes development and testing for things that we had listed to do outside of our 1.05 release,
- Acoustic Valve Tuning
- Additional Intake and Exhaust Valve tuning to match new ACIS tuned points
- Focusing on improving our 87 octane tune
- Lower RPM torque gains are made NOT through ANY ignition or fueling changes. ONLY through modifications to throttle, torque, and shift limitations.

Click to expand...

Can us 91octane folks expect to see these changes or is this 87 only?

airsickbuffa1o · Mar 1, 2019

Been happy on the base 1.05 91. After seeing this, it looks like im gonna have to flash the TSB.

TWTaco · Mar 1, 2019

Okay so i just was able to flash the TSB so i have all the new tunes! I am starting on 87 performance and loving it so far but just a few miles on it so far! I still have 91 in the tank so that might be adding to the benefits of 87 performance . Now we have an update coming for 87 performance! With more tune goodness to come ! Thanks Mat! You should be FRICKEN proud of your work! I know i am !

SpeySquatch · Mar 1, 2019

OVTune[OP] said: ↑

we are happy to provide this update, and totally free!.
It took me some time to dissect and properly define the acoustic control, all activation points by load and rpm triggers. The way the ecu uses single byte activation switches is a piaaaan
Click to expand...

Hate those piaaaans!

Great job Mat! This is sweet stuff.
You da man

Deucer01 · Mar 1, 2019

airsickbuffa1o said: ↑

Been happy on the base 1.05 91. After seeing this, it looks like im gonna have to flash the TSB.
Click to expand...

Yes. Sounds like 04B04 is a better tune foundation than the older ECU versions. Maybe this is why it's taking so long to release the Performance tunes for them.

Deucer01 · Mar 1, 2019

crigg93 said: ↑

Maybe I missed it somewhere in this thread but was there ever a fix for this? I'm having the same problem.
Click to expand...

Working for me...

RushT · Mar 1, 2019

Deucer01 said: ↑

Yes. Sounds like 04B04 is a better tune foundation than the older ECU versions. Maybe this is why it's taking so long to release the Performance tunes for them.
Click to expand...

Ok, so help a taco-brother out here. I thought that there were only a few ecu’s that couldn’t get the full Kool-aid because Mat needed them up to B04 before he could work his magic. Did I miss something? I’m an A60, so thought I was qualified for all the magic. Is that not the case? And I need a tsb to get all the latest goodies? I’m currently running the 1.05 performance. Never had the tsb.

OriginalMan · Mar 1, 2019

Lol, everyone will update to b04.

OVTune · Mar 1, 2019

SpeySquatch said: ↑

Hate those piaaaans!

Great job Mat! This is sweet stuff.
You da man
Click to expand...

Hah woops!

Good night everyone.

Shellshock · Mar 1, 2019

OriginalMan said: ↑

Lol, everyone will update to b04.
Click to expand...

They should! 04b04 is better than 04b03 + 1.03

Plus 04b04 has 1.05!

Deucer01 · Mar 1, 2019

RushT said: ↑

Ok, so help a taco-brother out here. I thought that there were only a few ecu’s that couldn’t get the full Kool-aid because Mat needed them up to B04 before he could work his magic. Did I miss something? I’m an A60, so thought I was qualified for all the magic. Is that not the case? And I need a tsb to get all the latest goodies? I’m currently running the 1.05 performance. Never had the tsb.
Click to expand...

If you were able to download and flash a 1.05 Performance tune you don't need the TSB. It's just for ECUs versions older than 4B04.

OriginalMan · Mar 1, 2019

Shellshock said: ↑

They should! 04b04 is better than 04b03 + 1.03

Plus 04b04 has 1.05!
Click to expand...

Stock b04 sucks balls but after flashing 1.05 perf/gear lock the kraken was unleashed.

Ron1965 · Mar 1, 2019

RushT said: ↑

Ok, so help a taco-brother out here. I thought that there were only a few ecu’s that couldn’t get the full Kool-aid because Mat needed them up to B04 before he could work his magic. Did I miss something? I’m an A60, so thought I was qualified for all the magic. Is that not the case? And I need a tsb to get all the latest goodies? I’m currently running the 1.05 performance. Never had the tsb.
Click to expand...

I’m also 04A60 and I have downloaded all the tunes. They are available to you. You do not need to do the tsb. Mat has included the important parts of it in 1.05

RushT · Mar 1, 2019

Deucer01 said: ↑

If you were able to download and flash a 1.05 Performance tune you don't need the TSB. It's just for ECUs versions older than 4B04.
Click to expand...

Thanks man! That’s what I thought but the wine’s got me all scairt I’m gonna miss some yummie toons.

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