Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Pink lines are stock HP / TQ. blue line is after tune. There is another graph that shows more changes / revisions as well which resulted in better top end gains. We chose to use that graph because it is what we ended with that resulted in the best / smoothest torque, however more top end gains are possible than what that graph shows.

 

I'm just antsy here, order #1821 hopefully on its way today?

 

I'm #1844 but didn't plug in the discount... before it was mentioned. thank you!

 

Ordered last night after the website was updated, order #1848. Cheers to everyone and thanks to Mat @OVTune.

 

Thanks much !

 

Does anyone know if the software will work on a virtual machine? I don't want to have to buy a laptop that I'm only ever going to use to flash the tune...

 

Yeah I'm gonna have to borrow someone's or hopefully use my mac

 

I would guess you could probably make it work but I don't think it is a good idea. The chances of a hiccup with USB communication causing a bricked ECU are too high for my taste. I'm assuming you have a MAC?

 

can't confirm but as long as the vm sees all host hardware
properly it should be an issue. This is just based on being
a vmware admin.

 

Correct. Do you think that hiccup is more or less likely than Windows restarting in the middle of a flash?

 

Yeah, it's definitely one of those things where it "should" work, but nothing is ever that simple when technology is involved.

 

I know the tune will be uploaded via windows, but does is the software "user friendly" to adjust other things; CEL, tires sizes, etc.... or will we have to email OP to get new files?

 

I loaded Windows on my MAC for this and so far so good. I need the answer key to go any further. I think a VM would be risky for the reasons stated above. Windows on a recent MAC using bootcamp would be a lot less risky. I will report once I get the answer key and connect to the truck.

 

hahaha, you're preaching to the choir on that one!

I AM the total IT team for a large firm and support a slew
of different technologies & platforms(Cisco, vmware, MS, Symantec, Citrix, etc.........)

 

Two more ?s , what is the tune difference between the 2016 Auto , and 2016 auto / OR with crawl control ? They are both auto's .
2- I am a newbee for tunes, Do people set their truck up the way they want it with larger tires etc. then send in info for a custom tune that may have to be re tuned after adding a cat back or what ever ? In other words are the tunes for personalized trucks ?

 

Just to get both of these together in one place to make it easier. . .

Pink lines are stock HP / TQ. blue line is after tune. There is another graph that shows more changes / revisions as well which resulted in better top end gains. We chose to use that graph because it is what we ended with that resulted in the best / smoothest torque, however more top end gains are possible than what that graph shows.

Customer vehicle : 2017 TRD, stock, auto. (aftermarket wheels)

some notable info
Reflash and throttle development was our primary goal, while showing our base results on an otherwise stock vehicle.
-stock rev limit (customer request)
-main goal is improving throttle and transmission response
- mid range power increase
- not pushing the engine, (customer request)

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 :
- the engine simply can't breathe up top. logging maf rates, load etc with various changes to camshafts the engine in stock configuration really runs out of breath up over 5000.

below about 4000 RPM we could see toyotas throttle ramping before full throttle (i'll try to get you a log snippet to show you), as previously explained it's part of toyotas new calibration code for "a flat torque curve."



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)



This was a great start to get everything moving along smoothly, verify some of our results and calibrate throttle mapping and ECT / non ECT throttle control maps, along with torque limit maps. This tune was not even "pushing" the truck / engine in any way. only very mild changes to top end with a main focus on changes to throttling / torque control maps and gearbox control maps.
I think you guys are going to really, really enjoy the throttle difference you will feel with this reflash in ECT and out of ECT. Some of the changes are tailored to ECT mode specifically.


I'll be back a little later to answer questions and see if I can pick through the data to show you guys further some of what is being talked about.

I really think you guys are going to enjoy this. The throttle response changes alone, especially in non ECT mode are very, very noticeable.

 

@OVTune

any thoughts on this little guy here? do you think this dip is dyno quirks, or actual?

 

IIRC, that was a dyno quirk. Reality sets in at 2500 RPM

 

I can see it now; a thread titled "MPG loss with OV Tune"