Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

CrisMag16SPRT · Sep 18, 2017

OVTune[OP] said: ↑

Good news, better news:

Confirmed testing on these maps. We're dissecting shift log data now.

We can change shifting for D mode and ECT mode.

We can make each gear, in each mode, shift however we want, at whatever RPM peak we want

Now begins dialing each gear.

We're going to need some forum member feedback. As I understand different people want the truck to react differently. We may offer 3 different shift settings.
Click to expand...

I'm jumping up and down for this

I would love to see what Matt could also do for a tow shifting tune

Reluctanse · Sep 18, 2017

disk_55FL said: ↑

MT here .......... June '17 build. Stock except exhaust. Put ~ 600 miles on it today. I've never had any rev Hang.
I'm very satisfied with the 1.02 tune. Need the 87 fix and all will be fine.
Click to expand...

What fix is needed for the 87 tune? Did I miss something?

disk_55FL · Sep 18, 2017

Matt said he'd give that option to those guys that didn't want peak performance ..... but wanted to run the cheap stuff ( it was a few weeks ago )
What fix is needed ? ........ just more of Matt's magic !

treimche · Sep 18, 2017

Hasn't the 87 octane thing been beaten to death already? People want the Tacoma to perform better, yet still run the lowest octane gas? Personally, I just wouldn't, but then again I only run premium in all of my vehicles.

Paul123 · Sep 18, 2017

treimche said: ↑

Hasn't the 87 octane thing been beaten to death already? People want the Tacoma to perform better, yet still run the lowest octane gas? Personally, I just wouldn't, but then again I only run premium in all of my vehicles.
Click to expand...

same

bshammer0 · Sep 18, 2017

Toytaco2k17 said: ↑

Yeah I think it's odd too. Alot of people seem to be having good luck with 1.02b. I will just wait for data logging and then we can get it sorted out. The main things I had with 1.02b is that really jerky feeling taking off and just a lack of power. I can understand what he said about it not feeling punchy with the vvt being smoothed out but I was having to down shift to 4th to take small grades that I can take in either 5th or 6th on 1.01b. It almost felt like the truck was leaning out or something. It's good though. I have a excellent fall back tune. We will get it sorted out.
Click to expand...

This was me - felt like it was leaning out on 1.02b. 1.01b rocks for my truck - remaining piece is the shifting refinements Mat's working on

Reluctanse · Sep 18, 2017

Ah..

I was reading that as he had the 87 tune but there was a problem with it.

No I'm fully aware about waiting on 87. It's what I'm going to run.

Herniator · Sep 18, 2017

I think there are some people who would like to run 87 octane. But have the option to change to a 91 octane tune for when they are towing a trailer.

Reluctanse · Sep 18, 2017

Or 87 for every-day commutes etc., driving for work where I would lose money buying 91...

and 91 for TRACK DAY, BRO!

AFMurse2014 · Sep 18, 2017

Y'all are far too picky lol...

OVTune · Sep 18, 2017

No problems with 87 tune, just haven't released to the masses yet. I understand some people are waiting for it, I really want to get the shifting down and have a complete, well rounded tune for 87 and 91.

In other news, a few trucks are running our shift adjustment changes with very positive results. Still ripping apart some shift data, but it looks like we're going to have a very, very nice shift update for everyone.

updated OP. Cleaned up information.

r1200gs4ok · Sep 18, 2017

OVTune[OP] said: ↑

No problems with 87 tune, just haven't released to the masses yet. I understand some people are waiting for it, I really want to get the shifting down and have a complete, well rounded tune for 87 and 91.

In other news, a few trucks are running our shift adjustment changes with very positive results. Still ripping apart some shift data, but it looks like we're going to have a very, very nice shift update for everyone.
Click to expand...

Yabadabadoo

Tacoma2GR · Sep 18, 2017

bshammer0 said: ↑

This was me - felt like it was leaning out on 1.02b. 1.01b rocks for my truck - remaining piece is the shifting refinements Mat's working on
Click to expand...

Are you auto or manual?

Deucer01 · Sep 19, 2017

OVTune[OP] initial post: ↑

Hello everyone!
I want to personally thank you for being so patient with us while we have been working on decompiling / and understanding the logic behind the 2016+ Tacomas stock tune.
To say the least...it is one of the most complex tunes to have ever existed out of a Japanese market vehicle we have ever seen. No understatement.

*** UPDATED 9/18/17 ****

1.02C Automatic - check red text

Tuning Kit information -
- All kits will now be delivered with 1.01B, 1.02B and 1.02C (pending release)
- Our kit offers reflash protection. No ECU removal required, no fear about bricking your ECU.
- Our kit offers extensive support.
- Our kit will be offering an OEM proprietary PID datalogger to capture important drivetrain data
- Our kit offers free updates for all our standard updates (1.01, 1.02, etc)

1.02 Calibration file is a collection of all 1.01A/B Research combined with 1.02 Valve Timing enhancements + other table adjustments.

1.02C will incorporate all previous ECU calibration version developments and will include gear specific up-shift map calibration changes and routines for every gear.

ECU and TCU Calibration Information (MT, AT) and changes
-Ignition control / Ignition Timing
- Fuel Ratio Targets for high load
- Direct injection fuel timing and amount, compensations
- Valve timing (intake, exhaust)
- 16 way Torque control for Shifting (Automatic) (enhanced shifting)
- 16 way Throttle progressive learning control
- simplified Throttle linear calibration (Manual)
- 1200 Breakpoint 100x 2D Shift Control Tables (Automatic)
- ECT Mode driving enhancements
- ECT Mode Throttle enhancements
- D Mode throttle enhancements (Automatic)
- 16 way shift torque maps (shift smoothing) (Automatic)

power figures below with information about 1.01 A and 1.02 development

stock baseline of two runs put the truck right at about 221-222HP to the rear wheels.
The engine power is surprisingly very similar to the 2GR FSE 3.5L variant in terms of peak torque and peak HP with a majority of power being up top, makes sense as it is a 2GR variant.
notable info :
below about 4000 RPM we could see toyotas throttle ramping before full throttle

changes to the tune are:
Alpha 91 octane reflash for stock rev limit
ignition timing / fuel / camshaft / gearbox control / ECT throttle mapping / non ECT throttle mapping / torque limitations mapping and more
-ECT adjustments and ECT throttle mode adjustments
- non ECT throttle adjustments

We did about 60-70 runs / drives collecting data in ECT / non ECT, etc so we could tailor throttle adjustments, which was more important to us and the owner of the car than just maximizing gains.
here are some runs throughout the process showing increase of adjustments (not all of course)

main adjustments to fix mid range torque

overall:
we see very large gains possible throughout the mid-range 20-30+ ft lbs increase from 2700 RPM onward, with midrange HP following suit.
Top end gains (with only mild adjustments) around 8-9+HP increase on stock rev limit
the focus: throttle adjustments and throttling control. (success)

product page: https://www.ovtuned.com/collections/lexus/products/toyota-tacoma-2grfks-calibration

Release 9/6/17
1.02 91 octane
1.02 87 octane (minimal extra power expected, but all other features applied)

3rd Gen Tacoma 2GR FKS Automatic Transmission

1.02 Update Changes -

Throttle - Minor
- Torque translation for load (incremental)

Fuel - Minor
- mild enhancements to fuel above 5000 RPM

Valve Timing - Major
-Intake camshaft valve timing adjustment through the complete range of RPM from moderate to high load. Smoother Valve timing transitions from part throttle to higher throttle / high load.
- Completely recalibrated Intake vale timing from 2000 RPM to rev limit
- 4500-6500 RPM Intake valve timing calibrated for peak possible top end
- 4500-6000 RPM Exhaust Valve timing recalibrated to sync with intake
- Valve Timing globally adjusted for smoother moderate to high load response
- 1000-1500 RPM intake valve timing adjusted

Ignition - Minor
- slight changes to ignition

16 Way Calibration Throttle Progression Control - Major
- Major update to 16 way Throttle control for high / moderate throttle "snap" (response)

16 Way Shift Torque Learning - Major
-16 Way Shift learn maps condensed (to 10) D mode shift enhanced (see below)

Overall -
Overall I am very happy with what we saw today with final testing for 1.02 on the dyno. We were able to further smooth our low to mid load torque and make some minor improvements to throttle/fuel/ignition. I am happy with what we saw today as well in terms of overall gains on the dyno with adjustments to valve timing and the difference in Intake Valve timing high load tuning.

Overall we saw a difference of 7-8 wheel HP over our best runs with 1.01B. Note we are seeing lower numbers on the dyno today because dyno conditions today were extremely bad, extremely hot. This is with the truck running overall around 4-6 degrees less than before due to heat soaking (room temp was 90+), compared to prior when we were seeing temps in the 70s. So we have less power overall due to heat but still we made gains in this heat over our 1.01B.

Our main focus here was 2 things : Valve Timing and Transmission enhancements. 1.02 Valve timing was COMPLETELY rewritten / calibrated for best possible safe power. We did not just focus on full throttle, our VVT map now looks nothing like stock, and it drives nicer and has faster response as a result. We will be watching with our tester to get some reported MPG numbers with this adjustment.

Transmission, we've got good news and bad news.
Good news- we were able to make some shifting improvements and make *some* of the 16 way maps condensed.

Bad news- we cannot disable the learning. By making all maps as "1" the truck will not shift. By condensing to 4, the truck will not go past 3000 RPM in 3rd gear. We found no effective combination that would allow "normal" like driving and shifting outside of making a mild learning condensation (eliminating 6 of the 16 maps).

Other News - So I tested the new 2018 Camry Valve timing, ignition timing on the truck (fuel targets look to be identical). Virtually no difference over stock expect a mild bump around 4000+ rpm. I'd bet my money on either the tacoma being "under" reported or the camry being "over" reported.

Dyno results.

My recommendation is to NOT take these numbers as "absolute best." Run conditions were absolutely horrible.
Humidity 80% and temperatures at 90+*, Intake air temps logged at 25-30*+ higher
I am happy to report even under these conditons the truck performed quite consistently.
The gains over 1.01B under these conditions are from ONLY cam timing

I will try to get all graphs over-layed at a later time. Dyno room was so hot I did not want to stick around. Overall the gains are not "huge" but I am happy with todays conditions and finalization to VVT I was able to make smoother delivery and better top end than 1.01B or Stock.

Note once again - I tested 2018 Camry tune on the truck, virtually no difference.

1.01B Best Gray Top end(ran today) vs 1.02 VVT

First Run of the day (pink) 1.01B (not best) VS some 1.02.

Click to expand...

OVTune[OP] said: ↑

No problems with 87 tune, just haven't released to the masses yet. I understand some people are waiting for it, I really want to get the shifting down and have a complete, well rounded tune for 87 and 91.

In other news, a few trucks are running our shift adjustment changes with very positive results. Still ripping apart some shift data, but it looks like we're going to have a very, very nice shift update for everyone.

updated OP. Cleaned up information.
Click to expand...

@OVTune , I reread the OP and product page and did not see data logging anymore. Does this mean you will only be offering off-the-shelf tunes now? What does "custom tunes" mean in your product page, is it 2 or 3 different tunes or individual custom tunes based on data logs?

bshammer0 · Sep 19, 2017

Tacoma2GR said: ↑

Are you auto or manual?
Click to expand...

AT

sphilly28 · Sep 19, 2017

I'll be removing my tune until he gets a stock MT on the dyno. I'm not all that fussy about the misfires and stutters under load, and I'm towing my travel trailer 3000kms this week. On the off chance it could be hazardous I would rather not risk it while on the road. So stock it will be until the MT tune is sorted out.

At least if it blows up with stock tuning it will be Toyota's problem lol.

dYL0n · Sep 19, 2017

I might start a gofund me account for that damn ticket I got.

I'll explain more later

fxrman · Sep 19, 2017

Just curious...
Those of us waiting to get our kits
(#2034) will it be coming with the new shift updates. I'm in no hurry and would be happy to wait for refinements...
Seems the more time he has the better it's getting...!!

bshammer0 · Sep 19, 2017

fxrman said: ↑

Just curious...
Those of us waiting to get our kits
(#2034) will it be coming with the new shift updates. I'm in no hurry and would be happy to wait for refinements...
Seems the more time he has the better it's getting...!!
Click to expand...

He updated OP - all new kits with 1.01b, 1.02b, and 1.02c (when released)

dYL0n · Sep 19, 2017

fxrman said: ↑

Just curious...
Those of us waiting to get our kits
(#2034) will it be coming with the new shift updates. I'm in no hurry and would be happy to wait for refinements...
Seems the more time he has the better it's getting...!!
Click to expand...

The kit is nothing more than a cable and dongle.

Matt will send you the file he has completed once you send him your ECU data. So if it takes 2 weeks for you to send him your file, he'll send you the most up to date file.

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Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

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Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

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#4761
CrisMag16SPRT Well-Known Member

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Reluctanse Granny shiftin, not double clutchin

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Reluctanse Granny shiftin, not double clutchin

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